trying embedded caddy reverse proxy

This commit is contained in:
pascal
2026-01-14 17:16:42 +01:00
parent d9118eb239
commit 626e892e3b
30 changed files with 6978 additions and 0 deletions

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# Binaries
bin/
*.exe
*.exe~
*.dll
*.so
*.dylib
# Test binary
*.test
# Output of go coverage tool
*.out
# Configuration files (keep example)
config.json
# IDE files
.vscode/
.idea/
*.swp
*.swo
*~
# OS files
.DS_Store
Thumbs.db

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GNU AFFERO GENERAL PUBLIC LICENSE
Version 3, 19 November 2007
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.PHONY: build clean run test help version proto
# Build variables
BINARY_NAME=proxy
BUILD_DIR=bin
# Version variables (can be overridden)
VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
COMMIT ?= $(shell git rev-parse --short HEAD 2>/dev/null || echo "unknown")
BUILD_DATE ?= $(shell date -u '+%Y-%m-%d_%H:%M:%S')
# Go linker flags for version injection
LDFLAGS=-ldflags "-X github.com/netbirdio/netbird/proxy/pkg/version.Version=$(VERSION) \
-X github.com/netbirdio/netbird/proxy/pkg/version.Commit=$(COMMIT) \
-X github.com/netbirdio/netbird/proxy/pkg/version.BuildDate=$(BUILD_DATE)"
# Build the binary
build:
@echo "Building $(BINARY_NAME)..."
@echo "Version: $(VERSION)"
@echo "Commit: $(COMMIT)"
@echo "BuildDate: $(BUILD_DATE)"
@mkdir -p $(BUILD_DIR)
GOWORK=off go build $(LDFLAGS) -o $(BUILD_DIR)/$(BINARY_NAME) .
@echo "Build complete: $(BUILD_DIR)/$(BINARY_NAME)"
# Show version information
version:
@echo "Version: $(VERSION)"
@echo "Commit: $(COMMIT)"
@echo "BuildDate: $(BUILD_DATE)"
# Clean build artifacts
clean:
@echo "Cleaning..."
@rm -rf $(BUILD_DIR)
@go clean
@echo "Clean complete"
# Run the application (requires NB_PROXY_TARGET_URL to be set)
run: build
@./$(BUILD_DIR)/$(BINARY_NAME)
# Run tests
test:
GOWORK=off go test -v ./...
# Install dependencies
deps:
@echo "Installing dependencies..."
GOWORK=off go mod download
GOWORK=off go mod tidy
@echo "Dependencies installed"
# Format code
fmt:
@echo "Formatting code..."
@go fmt ./...
@echo "Format complete"
# Lint code
lint:
@echo "Linting code..."
@golangci-lint run
@echo "Lint complete"
# Generate protobuf files
proto:
@echo "Generating protobuf files..."
@./scripts/generate-proto.sh
# Show help
help:
@echo "Available targets:"
@echo " build - Build the binary"
@echo " clean - Remove build artifacts"
@echo " run - Build and run the application"
@echo " test - Run tests"
@echo " proto - Generate protobuf files"
@echo " deps - Install dependencies"
@echo " fmt - Format code"
@echo " lint - Lint code"
@echo " help - Show this help message"

177
proxy/README.md Normal file
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# Netbird Reverse Proxy
A lightweight, configurable reverse proxy server with graceful shutdown support.
## Features
- Simple reverse proxy with customizable headers
- Configuration via environment variables or JSON file
- Graceful shutdown with configurable timeout
- Structured logging with logrus
- Configurable timeouts (read, write, idle)
- Health monitoring support
## Building
```bash
# Build the binary
GOWORK=off go build -o bin/proxy ./cmd/proxy
# Or use make if available
make build
```
## Configuration
The proxy can be configured using either environment variables or a JSON configuration file. Environment variables take precedence over file-based configuration.
### Environment Variables
| Variable | Description | Default |
|----------|-------------|---------|
| `NB_PROXY_LISTEN_ADDRESS` | Address to listen on | `:8080` |
| `NB_PROXY_TARGET_URL` | Target URL to proxy requests to | **(required)** |
| `NB_PROXY_READ_TIMEOUT` | Read timeout duration | `30s` |
| `NB_PROXY_WRITE_TIMEOUT` | Write timeout duration | `30s` |
| `NB_PROXY_IDLE_TIMEOUT` | Idle timeout duration | `60s` |
| `NB_PROXY_SHUTDOWN_TIMEOUT` | Graceful shutdown timeout | `10s` |
| `NB_PROXY_LOG_LEVEL` | Log level (debug, info, warn, error) | `info` |
### Configuration File
Create a JSON configuration file:
```json
{
"listen_address": ":8080",
"target_url": "http://localhost:3000",
"read_timeout": "30s",
"write_timeout": "30s",
"idle_timeout": "60s",
"shutdown_timeout": "10s",
"log_level": "info"
}
```
## Usage
### Using Environment Variables
```bash
export NB_PROXY_TARGET_URL=http://localhost:3000
export NB_PROXY_LOG_LEVEL=debug
./bin/proxy
```
### Using Configuration File
```bash
./bin/proxy -config config.json
```
### Combining Both
Environment variables override file configuration:
```bash
export NB_PROXY_LOG_LEVEL=debug
./bin/proxy -config config.json
```
### Docker Example
```bash
docker run -e NB_PROXY_TARGET_URL=http://backend:3000 \
-e NB_PROXY_LISTEN_ADDRESS=:8080 \
-p 8080:8080 \
netbird-proxy
```
## Architecture
The application follows a clean architecture with clear separation of concerns:
```
proxy/
├── cmd/
│ └── proxy/
│ └── main.go # Entry point, CLI handling, signal management
├── config.go # Configuration loading and validation
├── server.go # Server lifecycle (Start/Stop)
├── go.mod # Module dependencies
└── README.md
```
### Key Components
- **config.go**: Handles configuration loading from environment variables and files using the `github.com/caarlos0/env/v11` library
- **server.go**: Encapsulates the HTTP server and reverse proxy logic with proper lifecycle management
- **cmd/proxy/main.go**: Entry point that orchestrates startup, graceful shutdown, and signal handling
## Graceful Shutdown
The server handles SIGINT and SIGTERM signals for graceful shutdown:
1. Signal received (Ctrl+C or kill command)
2. Server stops accepting new connections
3. Existing connections are allowed to complete within the shutdown timeout
4. Server exits cleanly
Press `Ctrl+C` to trigger graceful shutdown:
```bash
^C2026-01-13 22:40:00 INFO Received signal: interrupt
2026-01-13 22:40:00 INFO Shutting down server gracefully...
2026-01-13 22:40:00 INFO Server stopped successfully
2026-01-13 22:40:00 INFO Server exited successfully
```
## Headers
The proxy automatically sets the following headers on proxied requests:
- `X-Forwarded-Host`: Original request host
- `X-Origin-Host`: Target backend host
- `X-Real-IP`: Client's remote address
## Error Handling
- Invalid backend connections return `502 Bad Gateway`
- All proxy errors are logged with details
- Configuration errors are reported at startup
## Development
### Prerequisites
- Go 1.25 or higher
- Access to `github.com/sirupsen/logrus`
- Access to `github.com/caarlos0/env/v11`
### Testing Locally
Start a test backend:
```bash
# Terminal 1: Start a simple backend
python3 -m http.server 3000
```
Start the proxy:
```bash
# Terminal 2: Start the proxy
export NB_PROXY_TARGET_URL=http://localhost:3000
./bin/proxy
```
Test the proxy:
```bash
# Terminal 3: Make requests
curl http://localhost:8080
```
## License
Part of the Netbird project.

120
proxy/cmd/root.go Normal file
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package cmd
import (
"context"
"os"
"os/signal"
"syscall"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/netbirdio/netbird/proxy/pkg/proxy"
"github.com/netbirdio/netbird/proxy/pkg/version"
)
var (
configFile string
rootCmd = &cobra.Command{
Use: "proxy",
Short: "Netbird Reverse Proxy Server",
Long: "A lightweight, configurable reverse proxy server.",
SilenceUsage: true,
SilenceErrors: true,
RunE: run,
}
)
func init() {
rootCmd.PersistentFlags().StringVarP(&configFile, "config", "c", "", "path to JSON configuration file (optional, can use env vars instead)")
// Set version information
rootCmd.Version = version.Short()
rootCmd.SetVersionTemplate("{{.Version}}\n")
}
// Execute runs the root command
func Execute() error {
return rootCmd.Execute()
}
func run(cmd *cobra.Command, args []string) error {
// Load configuration from file or environment variables
config, err := proxy.LoadFromFileOrEnv(configFile)
if err != nil {
log.Fatalf("Failed to load configuration: %v", err)
return err
}
// Set log level
setupLogging(config.LogLevel)
log.Infof("Starting Netbird Proxy - %s", version.Short())
log.Debugf("Full version info: %s", version.String())
log.Info("Configuration loaded successfully")
log.Infof("Listen Address: %s", config.ListenAddress)
log.Infof("Log Level: %s", config.LogLevel)
// Create server instance
server, err := proxy.NewServer(config)
if err != nil {
log.Fatalf("Failed to create server: %v", err)
return err
}
// Start server in a goroutine
serverErrors := make(chan error, 1)
go func() {
if err := server.Start(); err != nil {
serverErrors <- err
}
}()
// Set up signal handler for graceful shutdown
quit := make(chan os.Signal, 1)
signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
// Wait for either an error or shutdown signal
select {
case err := <-serverErrors:
log.Fatalf("Server error: %v", err)
return err
case sig := <-quit:
log.Infof("Received signal: %v", sig)
}
// Create shutdown context with timeout
ctx, cancel := context.WithTimeout(context.Background(), config.ShutdownTimeout)
defer cancel()
// Gracefully stop the server
if err := server.Stop(ctx); err != nil {
log.Fatalf("Failed to stop server gracefully: %v", err)
return err
}
log.Info("Server exited successfully")
return nil
}
func setupLogging(level string) {
// Set log format
log.SetFormatter(&log.TextFormatter{
FullTimestamp: true,
TimestampFormat: "2006-01-02 15:04:05",
})
// Set log level
switch level {
case "debug":
log.SetLevel(log.DebugLevel)
case "info":
log.SetLevel(log.InfoLevel)
case "warn":
log.SetLevel(log.WarnLevel)
case "error":
log.SetLevel(log.ErrorLevel)
default:
log.SetLevel(log.InfoLevel)
}
}

View File

@@ -0,0 +1,9 @@
{
"listen_address": ":8080",
"target_url": "http://localhost:3000",
"read_timeout": "30s",
"write_timeout": "30s",
"idle_timeout": "60s",
"shutdown_timeout": "10s",
"log_level": "info"
}

135
proxy/go.mod Normal file
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module github.com/netbirdio/netbird/proxy
go 1.25
require (
github.com/caarlos0/env/v11 v11.3.1
github.com/caddyserver/caddy/v2 v2.10.2
github.com/sirupsen/logrus v1.9.3
github.com/spf13/cobra v1.10.2
go.uber.org/zap v1.27.0
google.golang.org/grpc v1.78.0
google.golang.org/protobuf v1.36.11
)
require (
cel.dev/expr v0.24.0 // indirect
cloud.google.com/go/auth v0.16.2 // indirect
cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
cloud.google.com/go/compute/metadata v0.9.0 // indirect
dario.cat/mergo v1.0.1 // indirect
filippo.io/edwards25519 v1.1.0 // indirect
github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 // indirect
github.com/KimMachineGun/automemlimit v0.7.4 // indirect
github.com/Masterminds/goutils v1.1.1 // indirect
github.com/Masterminds/semver/v3 v3.3.0 // indirect
github.com/Masterminds/sprig/v3 v3.3.0 // indirect
github.com/Microsoft/go-winio v0.6.0 // indirect
github.com/antlr4-go/antlr/v4 v4.13.0 // indirect
github.com/aryann/difflib v0.0.0-20210328193216-ff5ff6dc229b // indirect
github.com/beorn7/perks v1.0.1 // indirect
github.com/caddyserver/certmagic v0.24.0 // indirect
github.com/caddyserver/zerossl v0.1.3 // indirect
github.com/ccoveille/go-safecast v1.6.1 // indirect
github.com/cespare/xxhash v1.1.0 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/chzyer/readline v1.5.1 // indirect
github.com/cloudflare/circl v1.6.1 // indirect
github.com/coreos/go-oidc/v3 v3.14.1 // indirect
github.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect
github.com/dgraph-io/badger v1.6.2 // indirect
github.com/dgraph-io/badger/v2 v2.2007.4 // indirect
github.com/dgraph-io/ristretto v0.2.0 // indirect
github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13 // indirect
github.com/dustin/go-humanize v1.0.1 // indirect
github.com/felixge/httpsnoop v1.0.4 // indirect
github.com/francoispqt/gojay v1.2.13 // indirect
github.com/go-jose/go-jose/v3 v3.0.4 // indirect
github.com/go-jose/go-jose/v4 v4.1.3 // indirect
github.com/go-logr/logr v1.4.3 // indirect
github.com/go-logr/stdr v1.2.2 // indirect
github.com/go-sql-driver/mysql v1.8.1 // indirect
github.com/golang/protobuf v1.5.4 // indirect
github.com/golang/snappy v0.0.4 // indirect
github.com/google/cel-go v0.26.0 // indirect
github.com/google/s2a-go v0.1.9 // indirect
github.com/google/uuid v1.6.0 // indirect
github.com/googleapis/enterprise-certificate-proxy v0.3.6 // indirect
github.com/googleapis/gax-go/v2 v2.14.2 // indirect
github.com/huandu/xstrings v1.5.0 // indirect
github.com/inconshreveable/mousetrap v1.1.0 // indirect
github.com/jackc/pgpassfile v1.0.0 // indirect
github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
github.com/jackc/pgx/v5 v5.6.0 // indirect
github.com/jackc/puddle/v2 v2.2.1 // indirect
github.com/klauspost/compress v1.18.0 // indirect
github.com/klauspost/cpuid/v2 v2.3.0 // indirect
github.com/libdns/libdns v1.1.0 // indirect
github.com/manifoldco/promptui v0.9.0 // indirect
github.com/mattn/go-colorable v0.1.13 // indirect
github.com/mattn/go-isatty v0.0.20 // indirect
github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
github.com/mholt/acmez/v3 v3.1.2 // indirect
github.com/miekg/dns v1.1.63 // indirect
github.com/mitchellh/copystructure v1.2.0 // indirect
github.com/mitchellh/go-ps v1.0.0 // indirect
github.com/mitchellh/reflectwalk v1.0.2 // indirect
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58 // indirect
github.com/pires/go-proxyproto v0.8.1 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/prometheus/client_golang v1.23.0 // indirect
github.com/prometheus/client_model v0.6.2 // indirect
github.com/prometheus/common v0.65.0 // indirect
github.com/prometheus/procfs v0.16.1 // indirect
github.com/quic-go/qpack v0.5.1 // indirect
github.com/quic-go/quic-go v0.54.0 // indirect
github.com/rs/xid v1.6.0 // indirect
github.com/russross/blackfriday/v2 v2.1.0 // indirect
github.com/shopspring/decimal v1.4.0 // indirect
github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
github.com/slackhq/nebula v1.9.5 // indirect
github.com/smallstep/certificates v0.28.4 // indirect
github.com/smallstep/cli-utils v0.12.1 // indirect
github.com/smallstep/linkedca v0.23.0 // indirect
github.com/smallstep/nosql v0.7.0 // indirect
github.com/smallstep/pkcs7 v0.2.1 // indirect
github.com/smallstep/scep v0.0.0-20240926084937-8cf1ca453101 // indirect
github.com/smallstep/truststore v0.13.0 // indirect
github.com/spf13/cast v1.7.0 // indirect
github.com/spf13/pflag v1.0.9 // indirect
github.com/stoewer/go-strcase v1.2.0 // indirect
github.com/tailscale/tscert v0.0.0-20240608151842-d3f834017e53 // indirect
github.com/urfave/cli v1.22.17 // indirect
github.com/zeebo/blake3 v0.2.4 // indirect
go.etcd.io/bbolt v1.3.10 // indirect
go.opentelemetry.io/auto/sdk v1.2.1 // indirect
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.61.0 // indirect
go.opentelemetry.io/otel v1.38.0 // indirect
go.opentelemetry.io/otel/metric v1.38.0 // indirect
go.opentelemetry.io/otel/trace v1.38.0 // indirect
go.step.sm/crypto v0.67.0 // indirect
go.uber.org/automaxprocs v1.6.0 // indirect
go.uber.org/mock v0.5.2 // indirect
go.uber.org/multierr v1.11.0 // indirect
go.uber.org/zap/exp v0.3.0 // indirect
go.yaml.in/yaml/v3 v3.0.4 // indirect
golang.org/x/crypto v0.44.0 // indirect
golang.org/x/crypto/x509roots/fallback v0.0.0-20250305170421-49bf5b80c810 // indirect
golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0 // indirect
golang.org/x/mod v0.29.0 // indirect
golang.org/x/net v0.47.0 // indirect
golang.org/x/oauth2 v0.32.0 // indirect
golang.org/x/sync v0.18.0 // indirect
golang.org/x/sys v0.38.0 // indirect
golang.org/x/term v0.37.0 // indirect
golang.org/x/text v0.31.0 // indirect
golang.org/x/time v0.12.0 // indirect
golang.org/x/tools v0.38.0 // indirect
google.golang.org/api v0.240.0 // indirect
google.golang.org/genproto/googleapis/api v0.0.0-20251029180050-ab9386a59fda // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20251029180050-ab9386a59fda // indirect
google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1 // indirect
gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
howett.net/plist v1.0.0 // indirect
)

641
proxy/go.sum Normal file
View File

@@ -0,0 +1,641 @@
cel.dev/expr v0.24.0 h1:56OvJKSH3hDGL0ml5uSxZmz3/3Pq4tJ+fb1unVLAFcY=
cel.dev/expr v0.24.0/go.mod h1:hLPLo1W4QUmuYdA72RBX06QTs6MXw941piREPl3Yfiw=
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.31.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.37.0/go.mod h1:TS1dMSSfndXH133OKGwekG838Om/cQT0BUHV3HcBgoo=
cloud.google.com/go v0.120.0 h1:wc6bgG9DHyKqF5/vQvX1CiZrtHnxJjBlKUyF9nP6meA=
cloud.google.com/go v0.120.0/go.mod h1:/beW32s8/pGRuj4IILWQNd4uuebeT4dkOhKmkfit64Q=
cloud.google.com/go/auth v0.16.2 h1:QvBAGFPLrDeoiNjyfVunhQ10HKNYuOwZ5noee0M5df4=
cloud.google.com/go/auth v0.16.2/go.mod h1:sRBas2Y1fB1vZTdurouM0AzuYQBMZinrUYL8EufhtEA=
cloud.google.com/go/auth/oauth2adapt v0.2.8 h1:keo8NaayQZ6wimpNSmW5OPc283g65QNIiLpZnkHRbnc=
cloud.google.com/go/auth/oauth2adapt v0.2.8/go.mod h1:XQ9y31RkqZCcwJWNSx2Xvric3RrU88hAYYbjDWYDL+c=
cloud.google.com/go/compute/metadata v0.9.0 h1:pDUj4QMoPejqq20dK0Pg2N4yG9zIkYGdBtwLoEkH9Zs=
cloud.google.com/go/compute/metadata v0.9.0/go.mod h1:E0bWwX5wTnLPedCKqk3pJmVgCBSM6qQI1yTBdEb3C10=
cloud.google.com/go/iam v1.5.2 h1:qgFRAGEmd8z6dJ/qyEchAuL9jpswyODjA2lS+w234g8=
cloud.google.com/go/iam v1.5.2/go.mod h1:SE1vg0N81zQqLzQEwxL2WI6yhetBdbNQuTvIKCSkUHE=
cloud.google.com/go/kms v1.22.0 h1:dBRIj7+GDeeEvatJeTB19oYZNV0aj6wEqSIT/7gLqtk=
cloud.google.com/go/kms v1.22.0/go.mod h1:U7mf8Sva5jpOb4bxYZdtw/9zsbIjrklYwPcvMk34AL8=
cloud.google.com/go/longrunning v0.6.7 h1:IGtfDWHhQCgCjwQjV9iiLnUta9LBCo8R9QmAFsS/PrE=
cloud.google.com/go/longrunning v0.6.7/go.mod h1:EAFV3IZAKmM56TyiE6VAP3VoTzhZzySwI/YI1s/nRsY=
dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
dmitri.shuralyov.com/app/changes v0.0.0-20180602232624-0a106ad413e3/go.mod h1:Yl+fi1br7+Rr3LqpNJf1/uxUdtRUV+Tnj0o93V2B9MU=
dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBrvjyP0v+ecvNYvCpyZgu5/xkfAUhi6wJj28eUfSU=
dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 h1:cTp8I5+VIoKjsnZuH8vjyaysT/ses3EvZeaV/1UkF2M=
github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
github.com/KimMachineGun/automemlimit v0.7.4 h1:UY7QYOIfrr3wjjOAqahFmC3IaQCLWvur9nmfIn6LnWk=
github.com/KimMachineGun/automemlimit v0.7.4/go.mod h1:QZxpHaGOQoYvFhv/r4u3U0JTC2ZcOwbSr11UZF46UBM=
github.com/Masterminds/goutils v1.1.1 h1:5nUrii3FMTL5diU80unEVvNevw1nH4+ZV4DSLVJLSYI=
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go.opentelemetry.io/otel/sdk/metric v1.38.0 h1:aSH66iL0aZqo//xXzQLYozmWrXxyFkBJ6qT5wthqPoM=
go.opentelemetry.io/otel/sdk/metric v1.38.0/go.mod h1:dg9PBnW9XdQ1Hd6ZnRz689CbtrUp0wMMs9iPcgT9EZA=
go.opentelemetry.io/otel/trace v1.38.0 h1:Fxk5bKrDZJUH+AMyyIXGcFAPah0oRcT+LuNtJrmcNLE=
go.opentelemetry.io/otel/trace v1.38.0/go.mod h1:j1P9ivuFsTceSWe1oY+EeW3sc+Pp42sO++GHkg4wwhs=
go.step.sm/crypto v0.67.0 h1:1km9LmxMKG/p+mKa1R4luPN04vlJYnRLlLQrWv7egGU=
go.step.sm/crypto v0.67.0/go.mod h1:+AoDpB0mZxbW/PmOXuwkPSpXRgaUaoIK+/Wx/HGgtAU=
go.uber.org/automaxprocs v1.6.0 h1:O3y2/QNTOdbF+e/dpXNNW7Rx2hZ4sTIPyybbxyNqTUs=
go.uber.org/automaxprocs v1.6.0/go.mod h1:ifeIMSnPZuznNm6jmdzmU3/bfk01Fe2fotchwEFJ8r8=
go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
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go.uber.org/mock v0.5.2/go.mod h1:wLlUxC2vVTPTaE3UD51E0BGOAElKrILxhVSDYQLld5o=
go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
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go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
go.uber.org/zap/exp v0.3.0 h1:6JYzdifzYkGmTdRR59oYH+Ng7k49H9qVpWwNSsGJj3U=
go.uber.org/zap/exp v0.3.0/go.mod h1:5I384qq7XGxYyByIhHm6jg5CHkGY0nsTfbDLgDDlgJQ=
go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
go4.org v0.0.0-20180809161055-417644f6feb5/go.mod h1:MkTOUMDaeVYJUOUsaDXIhWPZYa1yOyC1qaOBpL57BhE=
golang.org/x/build v0.0.0-20190111050920-041ab4dc3f9d/go.mod h1:OWs+y06UdEOHN4y+MfF/py+xQ/tYqIWW03b70/CG9Rw=
golang.org/x/crypto v0.0.0-20181030102418-4d3f4d9ffa16/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190313024323-a1f597ede03a/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
golang.org/x/crypto v0.27.0/go.mod h1:1Xngt8kV6Dvbssa53Ziq6Eqn0HqbZi5Z6R0ZpwQzt70=
golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
golang.org/x/crypto v0.44.0 h1:A97SsFvM3AIwEEmTBiaxPPTYpDC47w720rdiiUvgoAU=
golang.org/x/crypto v0.44.0/go.mod h1:013i+Nw79BMiQiMsOPcVCB5ZIJbYkerPrGnOa00tvmc=
golang.org/x/crypto/x509roots/fallback v0.0.0-20250305170421-49bf5b80c810 h1:V5+zy0jmgNYmK1uW/sPpBw8ioFvalrhaUrYWmu1Fpe4=
golang.org/x/crypto/x509roots/fallback v0.0.0-20250305170421-49bf5b80c810/go.mod h1:lxN5T34bK4Z/i6cMaU7frUU57VkDXFD4Kamfl/cp9oU=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0 h1:R84qjqJb5nVJMxqWYb3np9L5ZsaDtB+a39EqjV0JSUM=
golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0/go.mod h1:S9Xr4PYopiDyqSyp5NjCrhFrqg6A5zA2E/iPHPhqnS8=
golang.org/x/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
golang.org/x/mod v0.15.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
golang.org/x/mod v0.29.0 h1:HV8lRxZC4l2cr3Zq1LvtOsi/ThTgWnUk/y64QSs8GwA=
golang.org/x/mod v0.29.0/go.mod h1:NyhrlYXJ2H4eJiRy/WDBO6HMqZQ6q9nk4JzS3NuCK+w=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181029044818-c44066c5c816/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181106065722-10aee1819953/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190313220215-9f648a60d977/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20181017192945-9dcd33a902f4/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.32.0 h1:jsCblLleRMDrxMN29H3z/k1KliIvpLgCkE6R8FXXNgY=
golang.org/x/oauth2 v0.32.0/go.mod h1:lzm5WQJQwKZ3nwavOZ3IS5Aulzxi68dUSgRHujetwEA=
golang.org/x/perf v0.0.0-20180704124530-6e6d33e29852/go.mod h1:JLpeXjPJfIyPr5TlbXLkXWLhP8nz10XfvxElABhCtcw=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sync v0.11.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sync v0.18.0 h1:kr88TuHDroi+UVf+0hZnirlk8o8T+4MrK6mr60WkH/I=
golang.org/x/sync v0.18.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181029174526-d69651ed3497/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190316082340-a2f829d7f35f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY=
golang.org/x/term v0.24.0/go.mod h1:lOBK/LVxemqiMij05LGJ0tzNr8xlmwBRJ81PX6wVLH8=
golang.org/x/term v0.29.0/go.mod h1:6bl4lRlvVuDgSf3179VpIxBF0o10JUpXWOnI7nErv7s=
golang.org/x/term v0.37.0 h1:8EGAD0qCmHYZg6J17DvsMy9/wJ7/D/4pV/wfnld5lTU=
golang.org/x/term v0.37.0/go.mod h1:5pB4lxRNYYVZuTLmy8oR2BH8dflOR+IbTYFD8fi3254=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
golang.org/x/text v0.18.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
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golang.org/x/time v0.12.0 h1:ScB/8o8olJvc+CQPWrK3fPZNfh7qgwCrY0zJmoEQLSE=
golang.org/x/time v0.12.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
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golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
golang.org/x/tools v0.38.0 h1:Hx2Xv8hISq8Lm16jvBZ2VQf+RLmbd7wVUsALibYI/IQ=
golang.org/x/tools v0.38.0/go.mod h1:yEsQ/d/YK8cjh0L6rZlY8tgtlKiBNTL14pGDJPJpYQs=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
google.golang.org/api v0.0.0-20180910000450-7ca32eb868bf/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
google.golang.org/api v0.0.0-20181030000543-1d582fd0359e/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
google.golang.org/api v0.1.0/go.mod h1:UGEZY7KEX120AnNLIHFMKIo4obdJhkp2tPbaPlQx13Y=
google.golang.org/api v0.240.0 h1:PxG3AA2UIqT1ofIzWV2COM3j3JagKTKSwy7L6RHNXNU=
google.golang.org/api v0.240.0/go.mod h1:cOVEm2TpdAGHL2z+UwyS+kmlGr3bVWQQ6sYEqkKje50=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.3.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20181029155118-b69ba1387ce2/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20181202183823-bd91e49a0898/go.mod h1:7Ep/1NZk928CDR8SjdVbjWNpdIf6nzjE3BTgJDr2Atg=
google.golang.org/genproto v0.0.0-20190306203927-b5d61aea6440/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20250505200425-f936aa4a68b2 h1:1tXaIXCracvtsRxSBsYDiSBN0cuJvM7QYW+MrpIRY78=
google.golang.org/genproto v0.0.0-20250505200425-f936aa4a68b2/go.mod h1:49MsLSx0oWMOZqcpB3uL8ZOkAh1+TndpJ8ONoCBWiZk=
google.golang.org/genproto/googleapis/api v0.0.0-20251029180050-ab9386a59fda h1:+2XxjfsAu6vqFxwGBRcHiMaDCuZiqXGDUDVWVtrFAnE=
google.golang.org/genproto/googleapis/api v0.0.0-20251029180050-ab9386a59fda/go.mod h1:fDMmzKV90WSg1NbozdqrE64fkuTv6mlq2zxo9ad+3yo=
google.golang.org/genproto/googleapis/rpc v0.0.0-20251029180050-ab9386a59fda h1:i/Q+bfisr7gq6feoJnS/DlpdwEL4ihp41fvRiM3Ork0=
google.golang.org/genproto/googleapis/rpc v0.0.0-20251029180050-ab9386a59fda/go.mod h1:7i2o+ce6H/6BluujYR+kqX3GKH+dChPTQU19wjRPiGk=
google.golang.org/grpc v1.14.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
google.golang.org/grpc v1.16.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.78.0 h1:K1XZG/yGDJnzMdd/uZHAkVqJE+xIDOcmdSFZkBUicNc=
google.golang.org/grpc v1.78.0/go.mod h1:I47qjTo4OKbMkjA/aOOwxDIiPSBofUtQUI5EfpWvW7U=
google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1 h1:F29+wU6Ee6qgu9TddPgooOdaqsxTMunOoj8KA5yuS5A=
google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1/go.mod h1:5KF+wpkbTSbGcR9zteSqZV6fqFOWBl4Yde8En8MryZA=
google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc=
gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc=
gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0/go.mod h1:WDnlLJ4WF5VGsH/HVa3CI79GS0ol3YnhVnKP89i0kNg=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
howett.net/plist v1.0.0 h1:7CrbWYbPPO/PyNy38b2EB/+gYbjCe2DXBxgtOOZbSQM=
howett.net/plist v1.0.0/go.mod h1:lqaXoTrLY4hg8tnEzNru53gicrbv7rrk+2xJA/7hw9g=
sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck=
sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=

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@@ -0,0 +1,109 @@
package health
import (
"encoding/json"
"net/http"
"sync"
"time"
)
// Status represents the health status of the application
type Status string
const (
StatusHealthy Status = "healthy"
StatusUnhealthy Status = "unhealthy"
StatusDegraded Status = "degraded"
)
// Check represents a health check
type Check struct {
Name string `json:"name"`
Status Status `json:"status"`
Error string `json:"error,omitempty"`
}
// Response represents the health check response
type Response struct {
Status Status `json:"status"`
Timestamp time.Time `json:"timestamp"`
Uptime time.Duration `json:"uptime_seconds"`
Checks map[string]Check `json:"checks,omitempty"`
}
// Checker is the interface for health checks
type Checker interface {
Check() Check
}
// Handler manages health checks
type Handler struct {
mu sync.RWMutex
checkers map[string]Checker
startTime time.Time
}
// NewHandler creates a new health check handler
func NewHandler() *Handler {
return &Handler{
checkers: make(map[string]Checker),
startTime: time.Now(),
}
}
// RegisterChecker registers a health checker
func (h *Handler) RegisterChecker(name string, checker Checker) {
h.mu.Lock()
defer h.mu.Unlock()
h.checkers[name] = checker
}
// ServeHTTP handles health check requests
func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
h.mu.RLock()
defer h.mu.RUnlock()
response := Response{
Status: StatusHealthy,
Timestamp: time.Now(),
Uptime: time.Since(h.startTime),
Checks: make(map[string]Check),
}
// Run all health checks
for name, checker := range h.checkers {
check := checker.Check()
response.Checks[name] = check
// Update overall status
if check.Status == StatusUnhealthy {
response.Status = StatusUnhealthy
} else if check.Status == StatusDegraded && response.Status != StatusUnhealthy {
response.Status = StatusDegraded
}
}
// Set HTTP status code based on health
statusCode := http.StatusOK
if response.Status == StatusUnhealthy {
statusCode = http.StatusServiceUnavailable
} else if response.Status == StatusDegraded {
statusCode = http.StatusOK // Still return 200 for degraded
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(statusCode)
json.NewEncoder(w).Encode(response)
}
// ReadinessHandler returns a simple readiness probe handler
func ReadinessHandler(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
w.Write([]byte("ready"))
}
// LivenessHandler returns a simple liveness probe handler
func LivenessHandler(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
w.Write([]byte("alive"))
}

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@@ -0,0 +1,12 @@
package middleware
import "net/http"
// Chain creates a middleware chain
func Chain(handler http.Handler, middlewares ...func(http.Handler) http.Handler) http.Handler {
// Apply middlewares in reverse order so they execute in the order provided
for i := len(middlewares) - 1; i >= 0; i-- {
handler = middlewares[i](handler)
}
return handler
}

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@@ -0,0 +1,55 @@
package middleware
import (
"net/http"
"time"
log "github.com/sirupsen/logrus"
)
// responseWriter wraps http.ResponseWriter to capture status code
type responseWriter struct {
http.ResponseWriter
statusCode int
written int64
}
func (rw *responseWriter) WriteHeader(code int) {
rw.statusCode = code
rw.ResponseWriter.WriteHeader(code)
}
func (rw *responseWriter) Write(b []byte) (int, error) {
n, err := rw.ResponseWriter.Write(b)
rw.written += int64(n)
return n, err
}
// Logging middleware logs HTTP requests with details
func Logging(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
start := time.Now()
// Wrap the response writer
wrapped := &responseWriter{
ResponseWriter: w,
statusCode: http.StatusOK,
}
// Call the next handler
next.ServeHTTP(wrapped, r)
// Log request details
duration := time.Since(start)
log.WithFields(log.Fields{
"method": r.Method,
"path": r.URL.Path,
"status": wrapped.statusCode,
"duration_ms": duration.Milliseconds(),
"bytes": wrapped.written,
"remote_addr": r.RemoteAddr,
"user_agent": r.UserAgent(),
}).Info("HTTP request")
})
}

View File

@@ -0,0 +1,33 @@
package middleware
import (
"fmt"
"net/http"
"runtime/debug"
log "github.com/sirupsen/logrus"
)
// Recovery middleware recovers from panics and logs the error
func Recovery(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
defer func() {
if err := recover(); err != nil {
// Log the panic with stack trace
log.WithFields(log.Fields{
"error": err,
"method": r.Method,
"path": r.URL.Path,
"stack": string(debug.Stack()),
"remote_addr": r.RemoteAddr,
}).Error("Panic recovered")
// Return 500 Internal Server Error
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(w, "Internal Server Error")
}
}()
next.ServeHTTP(w, r)
})
}

View File

@@ -0,0 +1,626 @@
package reverseproxy
import (
"context"
"encoding/json"
"fmt"
"net"
"net/http"
"sort"
"sync"
"time"
"github.com/caddyserver/caddy/v2"
"github.com/caddyserver/caddy/v2/caddyconfig"
"github.com/caddyserver/caddy/v2/modules/caddyhttp"
"github.com/caddyserver/caddy/v2/modules/caddyhttp/reverseproxy"
"github.com/caddyserver/caddy/v2/modules/logging"
log "github.com/sirupsen/logrus"
)
// CaddyProxy wraps Caddy's reverse proxy functionality
type CaddyProxy struct {
config Config
mu sync.RWMutex
isRunning bool
routes map[string]*RouteConfig // key is route ID
requestCallback RequestDataCallback
// customHandlers stores handlers with custom transports that can't be JSON-serialized
// key is "routeID:path" to uniquely identify each handler
customHandlers map[string]*reverseproxy.Handler
}
// Config holds the reverse proxy configuration
type Config struct {
// ListenAddress is the address to listen on
ListenAddress string
// EnableHTTPS enables automatic HTTPS with Let's Encrypt
EnableHTTPS bool
// TLSEmail is the email for Let's Encrypt registration
TLSEmail string
// RequestDataCallback is called for each proxied request with metrics
RequestDataCallback RequestDataCallback
}
// RouteConfig defines a routing configuration
type RouteConfig struct {
// ID is a unique identifier for this route
ID string
// Domain is the domain to listen on (e.g., "example.com" or "*" for all)
Domain string
// PathMappings defines paths that should be forwarded to specific ports
// Key is the path prefix (e.g., "/", "/api", "/admin")
// Value is the target IP:port (e.g., "192.168.1.100:3000")
// Must have at least one entry. Use "/" or "" for the default/catch-all route.
PathMappings map[string]string
// Conn is an optional existing network connection to use for this route
// This allows routing through specific tunnels (e.g., WireGuard) per route
// If set, this connection will be reused for all requests to this route
Conn net.Conn
// CustomDialer is an optional custom dialer for this specific route
// This is used if Conn is not set. It allows using different network connections per route
CustomDialer func(ctx context.Context, network, address string) (net.Conn, error)
}
// New creates a new Caddy-based reverse proxy
func New(config Config) (*CaddyProxy, error) {
// Default to port 443 if not specified
if config.ListenAddress == "" {
config.ListenAddress = ":443"
}
cp := &CaddyProxy{
config: config,
isRunning: false,
routes: make(map[string]*RouteConfig),
requestCallback: config.RequestDataCallback,
customHandlers: make(map[string]*reverseproxy.Handler),
}
return cp, nil
}
// Start starts the Caddy reverse proxy server
func (cp *CaddyProxy) Start() error {
cp.mu.Lock()
if cp.isRunning {
cp.mu.Unlock()
return fmt.Errorf("reverse proxy already running")
}
cp.isRunning = true
cp.mu.Unlock()
// Build Caddy configuration
cfg, err := cp.buildCaddyConfig()
if err != nil {
cp.mu.Lock()
cp.isRunning = false
cp.mu.Unlock()
return fmt.Errorf("failed to build Caddy config: %w", err)
}
// Run Caddy with the configuration
err = caddy.Run(cfg)
if err != nil {
cp.mu.Lock()
cp.isRunning = false
cp.mu.Unlock()
return fmt.Errorf("failed to run Caddy: %w", err)
}
log.Infof("Caddy reverse proxy started on %s", cp.config.ListenAddress)
log.Infof("Configured %d route(s)", len(cp.routes))
return nil
}
// Stop gracefully stops the Caddy reverse proxy
func (cp *CaddyProxy) Stop(ctx context.Context) error {
cp.mu.Lock()
if !cp.isRunning {
cp.mu.Unlock()
return fmt.Errorf("reverse proxy not running")
}
cp.mu.Unlock()
log.Info("Stopping Caddy reverse proxy...")
// Stop Caddy
if err := caddy.Stop(); err != nil {
return fmt.Errorf("failed to stop Caddy: %w", err)
}
cp.mu.Lock()
cp.isRunning = false
cp.mu.Unlock()
log.Info("Caddy reverse proxy stopped")
return nil
}
// buildCaddyConfig builds the Caddy configuration
func (cp *CaddyProxy) buildCaddyConfig() (*caddy.Config, error) {
cp.mu.RLock()
defer cp.mu.RUnlock()
if len(cp.routes) == 0 {
// Create a default empty server that returns 404
httpServer := &caddyhttp.Server{
Listen: []string{cp.config.ListenAddress},
Routes: caddyhttp.RouteList{},
}
httpApp := &caddyhttp.App{
Servers: map[string]*caddyhttp.Server{
"proxy": httpServer,
},
}
cfg := &caddy.Config{
Admin: &caddy.AdminConfig{
Disabled: true,
},
AppsRaw: caddy.ModuleMap{
"http": caddyconfig.JSON(httpApp, nil),
},
}
return cfg, nil
}
// Build routes grouped by domain
domainRoutes := make(map[string][]caddyhttp.Route)
// Track unique service IDs for logger configuration
serviceIDs := make(map[string]bool)
for _, routeConfig := range cp.routes {
domain := routeConfig.Domain
if domain == "" {
domain = "*" // wildcard for all domains
}
// Register callback for this service ID
if cp.requestCallback != nil {
RegisterCallback(routeConfig.ID, cp.requestCallback)
serviceIDs[routeConfig.ID] = true
}
// Sort path mappings by path length (longest first) for proper matching
// This ensures more specific paths match before catch-all paths
paths := make([]string, 0, len(routeConfig.PathMappings))
for path := range routeConfig.PathMappings {
paths = append(paths, path)
}
sort.Slice(paths, func(i, j int) bool {
// Sort by length descending, but put empty string last (catch-all)
if paths[i] == "" || paths[i] == "/" {
return false
}
if paths[j] == "" || paths[j] == "/" {
return true
}
return len(paths[i]) > len(paths[j])
})
// Create routes for each path mapping
for _, path := range paths {
target := routeConfig.PathMappings[path]
route := cp.createRoute(routeConfig, path, target)
domainRoutes[domain] = append(domainRoutes[domain], route)
}
}
// Build Caddy routes
var caddyRoutes caddyhttp.RouteList
for domain, routes := range domainRoutes {
if domain != "*" {
// Add host matcher for specific domains
for i := range routes {
routes[i].MatcherSetsRaw = []caddy.ModuleMap{
{
"host": caddyconfig.JSON(caddyhttp.MatchHost{domain}, nil),
},
}
}
}
caddyRoutes = append(caddyRoutes, routes...)
}
// Create HTTP server with access logging if callback is set
httpServer := &caddyhttp.Server{
Listen: []string{cp.config.ListenAddress},
Routes: caddyRoutes,
}
// Configure server logging if callback is set
if cp.requestCallback != nil {
httpServer.Logs = &caddyhttp.ServerLogConfig{
// Use our custom logger for access logs
LoggerNames: map[string]caddyhttp.StringArray{
"http.log.access": {"http_access"},
},
// Disable default access logging (only use custom logger)
ShouldLogCredentials: false,
}
}
// Disable automatic HTTPS if not enabled
if !cp.config.EnableHTTPS {
// Explicitly disable automatic HTTPS for the server
httpServer.AutoHTTPS = &caddyhttp.AutoHTTPSConfig{
Disabled: true,
}
}
// Build HTTP app
httpApp := &caddyhttp.App{
Servers: map[string]*caddyhttp.Server{
"proxy": httpServer,
},
}
// Provision the HTTP app to set up handlers from JSON
ctx, cancel := caddy.NewContext(caddy.Context{Context: context.Background()})
defer cancel()
if err := httpApp.Provision(ctx); err != nil {
return nil, fmt.Errorf("failed to provision HTTP app: %w", err)
}
// After provisioning, inject custom transports into handlers
// This is done post-provisioning so the Transport field is preserved
if err := cp.injectCustomTransports(httpApp); err != nil {
return nil, fmt.Errorf("failed to inject custom transports: %w", err)
}
// Create Caddy config with the provisioned app
// IMPORTANT: We pass the already-provisioned app, not JSON
// This preserves the Transport fields we set
cfg := &caddy.Config{
Admin: &caddy.AdminConfig{
Disabled: true,
},
// Apps field takes already-provisioned apps
Apps: map[string]caddy.App{
"http": httpApp,
},
}
// Configure logging if callback is set
if cp.requestCallback != nil {
// Register the callback for the proxy service ID
RegisterCallback("proxy", cp.requestCallback)
// Build logging config with proper module names
cfg.Logging = &caddy.Logging{
Logs: map[string]*caddy.CustomLog{
"http_access": {
BaseLog: caddy.BaseLog{
WriterRaw: caddyconfig.JSONModuleObject(&CallbackWriter{ServiceID: "proxy"}, "output", "callback", nil),
EncoderRaw: caddyconfig.JSONModuleObject(&logging.JSONEncoder{}, "format", "json", nil),
Level: "INFO",
},
Include: []string{"http.log.access"},
},
},
}
log.Infof("Configured custom logging with callback writer for service: proxy")
}
return cfg, nil
}
// createRoute creates a Caddy route for a path and target with service ID tracking
func (cp *CaddyProxy) createRoute(routeConfig *RouteConfig, path, target string) caddyhttp.Route {
// Check if this route needs a custom transport
hasCustomTransport := routeConfig.Conn != nil || routeConfig.CustomDialer != nil
if hasCustomTransport {
// For routes with custom transports, store them separately
// and configure the upstream to use a special dial address that we'll intercept
handlerKey := fmt.Sprintf("%s:%s", routeConfig.ID, path)
// Create upstream with custom dial configuration
upstream := &reverseproxy.Upstream{
Dial: target,
}
// Create the reverse proxy handler with custom transport
handler := &reverseproxy.Handler{
Upstreams: reverseproxy.UpstreamPool{upstream},
}
// Configure the custom transport
if routeConfig.Conn != nil {
// Use the provided connection directly
transport := &http.Transport{
DialContext: func(ctx context.Context, network, address string) (net.Conn, error) {
log.Debugf("Reusing existing connection for route %s to %s", routeConfig.ID, address)
return routeConfig.Conn, nil
},
MaxIdleConns: 1,
MaxIdleConnsPerHost: 1,
IdleConnTimeout: 0,
DisableKeepAlives: false,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
handler.Transport = transport
log.Infof("Configured net.Conn transport for route %s (path: %s)", routeConfig.ID, path)
} else if routeConfig.CustomDialer != nil {
// Use the custom dialer function
transport := &http.Transport{
DialContext: routeConfig.CustomDialer,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
handler.Transport = transport
log.Infof("Configured custom dialer transport for route %s (path: %s)", routeConfig.ID, path)
}
// Store the handler for later injection
cp.customHandlers[handlerKey] = handler
// Create route using HandlersRaw with a placeholder that will be replaced
// We'll use JSON serialization here, but inject the real handler after Caddy loads
route := caddyhttp.Route{
HandlersRaw: []json.RawMessage{
caddyconfig.JSONModuleObject(handler, "handler", "reverse_proxy", nil),
},
}
if path != "" {
route.MatcherSetsRaw = []caddy.ModuleMap{
{
"path": caddyconfig.JSON(caddyhttp.MatchPath{path + "*"}, nil),
},
}
}
return route
}
// Standard route without custom transport
upstream := &reverseproxy.Upstream{
Dial: target,
}
handler := &reverseproxy.Handler{
Upstreams: reverseproxy.UpstreamPool{upstream},
}
route := caddyhttp.Route{
HandlersRaw: []json.RawMessage{
caddyconfig.JSONModuleObject(handler, "handler", "reverse_proxy", nil),
},
}
if path != "" {
route.MatcherSetsRaw = []caddy.ModuleMap{
{
"path": caddyconfig.JSON(caddyhttp.MatchPath{path + "*"}, nil),
},
}
}
return route
}
// IsRunning returns whether the proxy is running
func (cp *CaddyProxy) IsRunning() bool {
cp.mu.RLock()
defer cp.mu.RUnlock()
return cp.isRunning
}
// GetConfig returns the proxy configuration
func (cp *CaddyProxy) GetConfig() Config {
return cp.config
}
// AddRoute adds a new route configuration to the proxy
// If the proxy is running, it will reload the configuration
func (cp *CaddyProxy) AddRoute(route *RouteConfig) error {
if route == nil {
return fmt.Errorf("route cannot be nil")
}
if route.ID == "" {
return fmt.Errorf("route ID is required")
}
if len(route.PathMappings) == 0 {
return fmt.Errorf("route must have at least one path mapping")
}
cp.mu.Lock()
// Check if route already exists
if _, exists := cp.routes[route.ID]; exists {
cp.mu.Unlock()
return fmt.Errorf("route with ID %s already exists", route.ID)
}
// Add new route
cp.routes[route.ID] = route
isRunning := cp.isRunning
cp.mu.Unlock()
log.WithFields(log.Fields{
"route_id": route.ID,
"domain": route.Domain,
"paths": len(route.PathMappings),
}).Info("Added route")
// Reload configuration if proxy is running
if isRunning {
if err := cp.reloadConfig(); err != nil {
// Rollback: remove the route
cp.mu.Lock()
delete(cp.routes, route.ID)
cp.mu.Unlock()
return fmt.Errorf("failed to reload config after adding route: %w", err)
}
}
return nil
}
// RemoveRoute removes a route from the proxy
// If the proxy is running, it will reload the configuration
func (cp *CaddyProxy) RemoveRoute(routeID string) error {
cp.mu.Lock()
// Check if route exists
route, exists := cp.routes[routeID]
if !exists {
cp.mu.Unlock()
return fmt.Errorf("route %s not found", routeID)
}
// Remove route
delete(cp.routes, routeID)
isRunning := cp.isRunning
cp.mu.Unlock()
log.Infof("Removed route: %s", routeID)
// Reload configuration if proxy is running
if isRunning {
if err := cp.reloadConfig(); err != nil {
// Rollback: add the route back
cp.mu.Lock()
cp.routes[routeID] = route
cp.mu.Unlock()
return fmt.Errorf("failed to reload config after removing route: %w", err)
}
}
return nil
}
// UpdateRoute updates an existing route configuration
// If the proxy is running, it will reload the configuration
func (cp *CaddyProxy) UpdateRoute(route *RouteConfig) error {
if route == nil {
return fmt.Errorf("route cannot be nil")
}
if route.ID == "" {
return fmt.Errorf("route ID is required")
}
cp.mu.Lock()
// Check if route exists
oldRoute, exists := cp.routes[route.ID]
if !exists {
cp.mu.Unlock()
return fmt.Errorf("route %s not found", route.ID)
}
// Update route
cp.routes[route.ID] = route
isRunning := cp.isRunning
cp.mu.Unlock()
log.WithFields(log.Fields{
"route_id": route.ID,
"domain": route.Domain,
"paths": len(route.PathMappings),
}).Info("Updated route")
// Reload configuration if proxy is running
if isRunning {
if err := cp.reloadConfig(); err != nil {
// Rollback: restore old route
cp.mu.Lock()
cp.routes[route.ID] = oldRoute
cp.mu.Unlock()
return fmt.Errorf("failed to reload config after updating route: %w", err)
}
}
return nil
}
// ListRoutes returns a list of all configured route IDs
func (cp *CaddyProxy) ListRoutes() []string {
cp.mu.RLock()
defer cp.mu.RUnlock()
routes := make([]string, 0, len(cp.routes))
for id := range cp.routes {
routes = append(routes, id)
}
return routes
}
// GetRoute returns a route configuration by ID
func (cp *CaddyProxy) GetRoute(routeID string) (*RouteConfig, error) {
cp.mu.RLock()
defer cp.mu.RUnlock()
route, exists := cp.routes[routeID]
if !exists {
return nil, fmt.Errorf("route %s not found", routeID)
}
return route, nil
}
// injectCustomTransports injects custom transports into provisioned handlers
// This must be called after httpApp.Provision() but before passing to Caddy.Run()
func (cp *CaddyProxy) injectCustomTransports(httpApp *caddyhttp.App) error {
// Iterate through all servers
for serverName, server := range httpApp.Servers {
log.Debugf("Injecting custom transports for server: %s", serverName)
// Iterate through all routes
for routeIdx, route := range server.Routes {
// Iterate through all handlers in the route
for handlerIdx, handler := range route.Handlers {
// Check if this is a reverse proxy handler
if rpHandler, ok := handler.(*reverseproxy.Handler); ok {
// Try to find a matching custom handler for this route
// We need to match by handler configuration since we don't have route metadata here
for handlerKey, customHandler := range cp.customHandlers {
// Check if the upstream configuration matches
if len(rpHandler.Upstreams) > 0 && len(customHandler.Upstreams) > 0 {
if rpHandler.Upstreams[0].Dial == customHandler.Upstreams[0].Dial {
// Match found! Inject the custom transport
rpHandler.Transport = customHandler.Transport
log.Infof("Injected custom transport for route %d, handler %d (key: %s)", routeIdx, handlerIdx, handlerKey)
break
}
}
}
}
}
}
}
return nil
}
// reloadConfig rebuilds and reloads the Caddy configuration
// Must be called without holding the lock
func (cp *CaddyProxy) reloadConfig() error {
log.Info("Reloading Caddy configuration...")
cfg, err := cp.buildCaddyConfig()
if err != nil {
return fmt.Errorf("failed to build config: %w", err)
}
if err := caddy.Run(cfg); err != nil {
return fmt.Errorf("failed to load config: %w", err)
}
log.Info("Caddy configuration reloaded successfully")
return nil
}

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@@ -0,0 +1,225 @@
package reverseproxy
import (
"encoding/json"
"fmt"
"io"
"strings"
"sync"
"github.com/caddyserver/caddy/v2"
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
log "github.com/sirupsen/logrus"
)
var (
// Global map to store callbacks per service ID
callbackRegistry = make(map[string]RequestDataCallback)
callbackMu sync.RWMutex
)
// RegisterCallback registers a callback for a specific service ID
func RegisterCallback(serviceID string, callback RequestDataCallback) {
callbackMu.Lock()
defer callbackMu.Unlock()
callbackRegistry[serviceID] = callback
}
// UnregisterCallback removes a callback for a specific service ID
func UnregisterCallback(serviceID string) {
callbackMu.Lock()
defer callbackMu.Unlock()
delete(callbackRegistry, serviceID)
}
// getCallback retrieves the callback for a service ID
func getCallback(serviceID string) RequestDataCallback {
callbackMu.RLock()
defer callbackMu.RUnlock()
return callbackRegistry[serviceID]
}
func init() {
caddy.RegisterModule(CallbackWriter{})
}
// CallbackWriter is a Caddy log writer module that sends request data via callback
type CallbackWriter struct {
ServiceID string `json:"service_id,omitempty"`
}
// CaddyModule returns the Caddy module information
func (CallbackWriter) CaddyModule() caddy.ModuleInfo {
return caddy.ModuleInfo{
ID: "caddy.logging.writers.callback",
New: func() caddy.Module { return new(CallbackWriter) },
}
}
// Provision sets up the callback writer
func (cw *CallbackWriter) Provision(ctx caddy.Context) error {
log.Infof("CallbackWriter.Provision called for service_id: %s", cw.ServiceID)
return nil
}
// String returns a human-readable representation of the writer
func (cw *CallbackWriter) String() string {
return fmt.Sprintf("callback writer for service %s", cw.ServiceID)
}
// WriterKey returns a unique key for this writer configuration
func (cw *CallbackWriter) WriterKey() string {
return "callback_" + cw.ServiceID
}
// OpenWriter opens the writer
func (cw *CallbackWriter) OpenWriter() (io.WriteCloser, error) {
log.Infof("CallbackWriter.OpenWriter called for service_id: %s", cw.ServiceID)
writer := &LogWriter{
serviceID: cw.ServiceID,
}
log.Infof("Created LogWriter instance: %p for service_id: %s", writer, cw.ServiceID)
return writer, nil
}
// UnmarshalCaddyfile implements caddyfile.Unmarshaler
func (cw *CallbackWriter) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
for d.Next() {
if !d.NextArg() {
return d.ArgErr()
}
cw.ServiceID = d.Val()
}
return nil
}
// Ensure CallbackWriter implements the required interfaces
var (
_ caddy.Provisioner = (*CallbackWriter)(nil)
_ caddy.WriterOpener = (*CallbackWriter)(nil)
_ caddyfile.Unmarshaler = (*CallbackWriter)(nil)
)
// LogWriter is a custom io.Writer that parses Caddy's structured JSON logs
// and extracts request metrics to send via callback
type LogWriter struct {
serviceID string
}
// NewLogWriter creates a new log writer with the given service ID
func NewLogWriter(serviceID string) *LogWriter {
return &LogWriter{
serviceID: serviceID,
}
}
// Write implements io.Writer
func (lw *LogWriter) Write(p []byte) (n int, err error) {
// DEBUG: Log that we received data
log.Infof("LogWriter.Write called with %d bytes for service_id: %s", len(p), lw.serviceID)
log.Debugf("LogWriter content: %s", string(p))
// Caddy writes one JSON object per line
// Parse the JSON to extract request metrics
var logEntry map[string]interface{}
if err := json.Unmarshal(p, &logEntry); err != nil {
// Not JSON or malformed, skip
log.Debugf("Failed to unmarshal JSON: %v", err)
return len(p), nil
}
// Caddy access logs have a nested "request" object
// Check if this is an access log entry by looking for "request" field
requestObj, hasRequest := logEntry["request"]
if !hasRequest {
log.Debugf("Not an access log entry (no 'request' field)")
return len(p), nil
}
request, ok := requestObj.(map[string]interface{})
if !ok {
log.Debugf("'request' field is not a map")
return len(p), nil
}
// Extract fields
data := &RequestData{
ServiceID: lw.serviceID,
}
// Extract method from request object
if method, ok := request["method"].(string); ok {
data.Method = method
}
// Extract host from request object and strip port
if host, ok := request["host"].(string); ok {
// Strip port from host (e.g., "test.netbird.io:54321" -> "test.netbird.io")
if idx := strings.LastIndex(host, ":"); idx != -1 {
data.Host = host[:idx]
} else {
data.Host = host
}
}
// Extract path (uri field) from request object
if uri, ok := request["uri"].(string); ok {
data.Path = uri
}
// Extract status code from top-level
if status, ok := logEntry["status"].(float64); ok {
data.ResponseCode = int32(status)
}
// Extract duration (in seconds, convert to milliseconds) from top-level
if duration, ok := logEntry["duration"].(float64); ok {
data.DurationMs = int64(duration * 1000)
}
// Extract source IP from request object - try multiple fields
if clientIP, ok := request["client_ip"].(string); ok {
data.SourceIP = clientIP
} else if remoteIP, ok := request["remote_ip"].(string); ok {
data.SourceIP = remoteIP
} else if remoteAddr, ok := request["remote_addr"].(string); ok {
// remote_addr is in "IP:port" format
if idx := strings.LastIndex(remoteAddr, ":"); idx != -1 {
data.SourceIP = remoteAddr[:idx]
} else {
data.SourceIP = remoteAddr
}
}
// Call callback if set and we have valid data
callback := getCallback(lw.serviceID)
if callback != nil && data.Method != "" {
log.Infof("Calling callback for request: %s %s", data.Method, data.Path)
go func() {
// Run in goroutine to avoid blocking log writes
callback(data)
}()
} else {
log.Warnf("No callback registered for service_id: %s", lw.serviceID)
}
log.WithFields(log.Fields{
"service_id": data.ServiceID,
"method": data.Method,
"host": data.Host,
"path": data.Path,
"status": data.ResponseCode,
"duration_ms": data.DurationMs,
"source_ip": data.SourceIP,
}).Info("Request logged via callback writer")
return len(p), nil
}
// Close implements io.Closer (no-op for our use case)
func (lw *LogWriter) Close() error {
return nil
}
// Ensure LogWriter implements io.WriteCloser
var _ io.WriteCloser = (*LogWriter)(nil)

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@@ -0,0 +1,251 @@
package reverseproxy
import (
"encoding/json"
"sync"
"testing"
"time"
)
func TestLogWriter_Write(t *testing.T) {
// Create a channel to receive callback data
callbackChan := make(chan *RequestData, 1)
var callbackMu sync.Mutex
var callbackCalled bool
// Register a test callback
testServiceID := "test-service"
RegisterCallback(testServiceID, func(data *RequestData) {
callbackMu.Lock()
callbackCalled = true
callbackMu.Unlock()
callbackChan <- data
})
defer UnregisterCallback(testServiceID)
// Create a log writer
writer := NewLogWriter(testServiceID)
// Create a sample Caddy access log entry (matching the structure from your logs)
logEntry := map[string]interface{}{
"level": "info",
"ts": 1768352053.7900746,
"logger": "http.log.access",
"msg": "handled request",
"request": map[string]interface{}{
"remote_ip": "::1",
"remote_port": "51972",
"client_ip": "::1",
"proto": "HTTP/1.1",
"method": "GET",
"host": "test.netbird.io:54321",
"uri": "/test/path",
},
"bytes_read": 0,
"user_id": "",
"duration": 0.004779453,
"size": 615,
"status": 200,
}
// Marshal to JSON
logJSON, err := json.Marshal(logEntry)
if err != nil {
t.Fatalf("Failed to marshal log entry: %v", err)
}
// Write to the log writer
n, err := writer.Write(logJSON)
if err != nil {
t.Fatalf("Write failed: %v", err)
}
if n != len(logJSON) {
t.Errorf("Expected to write %d bytes, wrote %d", len(logJSON), n)
}
// Wait for callback to be called (with timeout)
select {
case data := <-callbackChan:
// Verify the extracted data
if data.ServiceID != testServiceID {
t.Errorf("Expected service_id %s, got %s", testServiceID, data.ServiceID)
}
if data.Method != "GET" {
t.Errorf("Expected method GET, got %s", data.Method)
}
if data.Host != "test.netbird.io" {
t.Errorf("Expected host test.netbird.io, got %s", data.Host)
}
if data.Path != "/test/path" {
t.Errorf("Expected path /test/path, got %s", data.Path)
}
if data.ResponseCode != 200 {
t.Errorf("Expected status 200, got %d", data.ResponseCode)
}
if data.SourceIP != "::1" {
t.Errorf("Expected source_ip ::1, got %s", data.SourceIP)
}
// Duration should be ~4.78ms (0.004779453 * 1000)
if data.DurationMs < 4 || data.DurationMs > 5 {
t.Errorf("Expected duration ~4-5ms, got %dms", data.DurationMs)
}
case <-time.After(1 * time.Second):
t.Fatal("Callback was not called within timeout")
}
// Verify callback was called
callbackMu.Lock()
defer callbackMu.Unlock()
if !callbackCalled {
t.Error("Callback was never called")
}
}
func TestLogWriter_Write_NonAccessLog(t *testing.T) {
// Create a channel to receive callback data
callbackChan := make(chan *RequestData, 1)
// Register a test callback
testServiceID := "test-service-2"
RegisterCallback(testServiceID, func(data *RequestData) {
callbackChan <- data
})
defer UnregisterCallback(testServiceID)
// Create a log writer
writer := NewLogWriter(testServiceID)
// Create a non-access log entry (e.g., a TLS log)
logEntry := map[string]interface{}{
"level": "info",
"ts": 1768352032.12347,
"logger": "tls",
"msg": "storage cleaning happened too recently",
}
// Marshal to JSON
logJSON, err := json.Marshal(logEntry)
if err != nil {
t.Fatalf("Failed to marshal log entry: %v", err)
}
// Write to the log writer
n, err := writer.Write(logJSON)
if err != nil {
t.Fatalf("Write failed: %v", err)
}
if n != len(logJSON) {
t.Errorf("Expected to write %d bytes, wrote %d", len(logJSON), n)
}
// Callback should NOT be called for non-access logs
select {
case data := <-callbackChan:
t.Errorf("Callback should not be called for non-access log, but got: %+v", data)
case <-time.After(100 * time.Millisecond):
// Expected - callback not called
}
}
func TestLogWriter_Write_MalformedJSON(t *testing.T) {
// Create a log writer
writer := NewLogWriter("test-service-3")
// Write malformed JSON
malformedJSON := []byte("{this is not valid json")
// Should not fail, just skip the entry
n, err := writer.Write(malformedJSON)
if err != nil {
t.Fatalf("Write should not fail on malformed JSON: %v", err)
}
if n != len(malformedJSON) {
t.Errorf("Expected to write %d bytes, wrote %d", len(malformedJSON), n)
}
}
func TestCallbackRegistry(t *testing.T) {
serviceID := "test-registry"
var called bool
// Test registering a callback
callback := func(data *RequestData) {
called = true
}
RegisterCallback(serviceID, callback)
// Test retrieving the callback
retrievedCallback := getCallback(serviceID)
if retrievedCallback == nil {
t.Fatal("Expected to retrieve callback, got nil")
}
// Call the retrieved callback to verify it works
retrievedCallback(&RequestData{})
if !called {
t.Error("Callback was not called")
}
// Test unregistering
UnregisterCallback(serviceID)
retrievedCallback = getCallback(serviceID)
if retrievedCallback != nil {
t.Error("Expected nil after unregistering, got a callback")
}
}
func TestCallbackWriter_Module(t *testing.T) {
// Test that the module is properly configured
cw := CallbackWriter{ServiceID: "test"}
moduleInfo := cw.CaddyModule()
if moduleInfo.ID != "caddy.logging.writers.callback" {
t.Errorf("Expected module ID 'caddy.logging.writers.callback', got '%s'", moduleInfo.ID)
}
if moduleInfo.New == nil {
t.Error("Expected New function to be set")
}
// Test creating a new instance via the New function
newModule := moduleInfo.New()
if newModule == nil {
t.Error("Expected New() to return a module instance")
}
_, ok := newModule.(*CallbackWriter)
if !ok {
t.Error("Expected New() to return a *CallbackWriter")
}
}
func TestCallbackWriter_WriterKey(t *testing.T) {
cw := &CallbackWriter{ServiceID: "my-service"}
expectedKey := "callback_my-service"
if cw.WriterKey() != expectedKey {
t.Errorf("Expected writer key '%s', got '%s'", expectedKey, cw.WriterKey())
}
}
func TestCallbackWriter_String(t *testing.T) {
cw := &CallbackWriter{ServiceID: "my-service"}
str := cw.String()
if str != "callback writer for service my-service" {
t.Errorf("Unexpected string representation: %s", str)
}
}
func TestLogWriter_Close(t *testing.T) {
writer := NewLogWriter("test")
// Close should not fail
err := writer.Close()
if err != nil {
t.Errorf("Close should not fail: %v", err)
}
}

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@@ -0,0 +1,131 @@
package reverseproxy
import (
"net/http"
"strings"
"time"
"github.com/caddyserver/caddy/v2/modules/caddyhttp"
log "github.com/sirupsen/logrus"
)
// RequestDataCallback is called for each request that passes through the proxy
type RequestDataCallback func(data *RequestData)
// RequestData contains metadata about a proxied request
type RequestData struct {
ServiceID string
Host string
Path string
DurationMs int64
Method string
ResponseCode int32
SourceIP string
}
// MetricsMiddleware wraps a handler to capture request metrics
type MetricsMiddleware struct {
Next caddyhttp.Handler
ServiceID string
Callback RequestDataCallback
}
// ServeHTTP implements caddyhttp.MiddlewareHandler
func (m *MetricsMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyhttp.Handler) error {
// Record start time
startTime := time.Now()
// Wrap the response writer to capture status code
wrappedWriter := &responseWriterWrapper{
ResponseWriter: w,
statusCode: http.StatusOK, // Default to 200
}
// Call the next handler (Caddy's reverse proxy)
err := next.ServeHTTP(wrappedWriter, r)
// Calculate duration
duration := time.Since(startTime)
// Extract source IP (handle X-Forwarded-For or direct connection)
sourceIP := extractSourceIP(r)
// Create request data
data := &RequestData{
ServiceID: m.ServiceID,
Path: r.URL.Path,
DurationMs: duration.Milliseconds(),
Method: r.Method,
ResponseCode: int32(wrappedWriter.statusCode),
SourceIP: sourceIP,
}
// Call callback if set
if m.Callback != nil {
go func() {
// Run callback in goroutine to avoid blocking response
m.Callback(data)
}()
}
log.WithFields(log.Fields{
"service_id": data.ServiceID,
"method": data.Method,
"path": data.Path,
"status": data.ResponseCode,
"duration_ms": data.DurationMs,
"source_ip": data.SourceIP,
}).Debug("Request proxied")
return err
}
// responseWriterWrapper wraps http.ResponseWriter to capture status code
type responseWriterWrapper struct {
http.ResponseWriter
statusCode int
written bool
}
// WriteHeader captures the status code
func (w *responseWriterWrapper) WriteHeader(statusCode int) {
if !w.written {
w.statusCode = statusCode
w.written = true
}
w.ResponseWriter.WriteHeader(statusCode)
}
// Write ensures we capture status if WriteHeader wasn't called explicitly
func (w *responseWriterWrapper) Write(b []byte) (int, error) {
if !w.written {
w.written = true
// Status code defaults to 200 if not explicitly set
}
return w.ResponseWriter.Write(b)
}
// extractSourceIP extracts the real client IP from the request
func extractSourceIP(r *http.Request) string {
// Check X-Forwarded-For header first (if behind a proxy)
if xff := r.Header.Get("X-Forwarded-For"); xff != "" {
// X-Forwarded-For can be a comma-separated list, take the first one
parts := strings.Split(xff, ",")
if len(parts) > 0 {
return strings.TrimSpace(parts[0])
}
}
// Check X-Real-IP header
if xri := r.Header.Get("X-Real-IP"); xri != "" {
return xri
}
// Fall back to RemoteAddr
// RemoteAddr is in format "IP:port", so we need to strip the port
if idx := strings.LastIndex(r.RemoteAddr, ":"); idx != -1 {
return r.RemoteAddr[:idx]
}
return r.RemoteAddr
}

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@@ -0,0 +1,139 @@
package reverseproxy
import (
"context"
"fmt"
"net"
"net/http"
"sync"
"time"
log "github.com/sirupsen/logrus"
)
// customTransportRegistry stores custom dialers and connections globally
// This allows them to be accessed after Caddy deserializes the configuration from JSON
var customTransportRegistry = &transportRegistry{
transports: make(map[string]*customTransport),
}
// transportRegistry manages custom transports for routes
type transportRegistry struct {
mu sync.RWMutex
transports map[string]*customTransport // key is "routeID:path"
}
// customTransport wraps either a net.Conn or a custom dialer
type customTransport struct {
routeID string
path string
conn net.Conn
customDialer func(ctx context.Context, network, address string) (net.Conn, error)
defaultDialer *net.Dialer
}
// Register registers a custom transport for a route
func (r *transportRegistry) Register(routeID, path string, conn net.Conn, dialer func(ctx context.Context, network, address string) (net.Conn, error)) {
r.mu.Lock()
defer r.mu.Unlock()
key := fmt.Sprintf("%s:%s", routeID, path)
r.transports[key] = &customTransport{
routeID: routeID,
path: path,
conn: conn,
customDialer: dialer,
defaultDialer: &net.Dialer{Timeout: 30 * time.Second},
}
if conn != nil {
log.Infof("Registered net.Conn transport for route %s (path: %s)", routeID, path)
} else if dialer != nil {
log.Infof("Registered custom dialer transport for route %s (path: %s)", routeID, path)
}
}
// Get retrieves a custom transport for a route
func (r *transportRegistry) Get(routeID, path string) *customTransport {
r.mu.RLock()
defer r.mu.RUnlock()
key := fmt.Sprintf("%s:%s", routeID, path)
return r.transports[key]
}
// Unregister removes a custom transport
func (r *transportRegistry) Unregister(routeID, path string) {
r.mu.Lock()
defer r.mu.Unlock()
key := fmt.Sprintf("%s:%s", routeID, path)
delete(r.transports, key)
log.Infof("Unregistered transport for route %s (path: %s)", routeID, path)
}
// Clear removes all custom transports
func (r *transportRegistry) Clear() {
r.mu.Lock()
defer r.mu.Unlock()
r.transports = make(map[string]*customTransport)
log.Info("Cleared all custom transports")
}
// DialContext implements the DialContext function for custom transports
func (ct *customTransport) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
// If we have a pre-existing connection, return it
if ct.conn != nil {
log.Debugf("Reusing existing connection for route %s (path: %s) to %s", ct.routeID, ct.path, address)
return ct.conn, nil
}
// If we have a custom dialer, use it
if ct.customDialer != nil {
log.Debugf("Using custom dialer for route %s (path: %s) to %s", ct.routeID, ct.path, address)
return ct.customDialer(ctx, network, address)
}
// Fallback to default dialer (this shouldn't happen if registered correctly)
log.Warnf("No custom transport found for route %s (path: %s), using default dialer", ct.routeID, ct.path)
return ct.defaultDialer.DialContext(ctx, network, address)
}
// NewCustomHTTPTransport creates an HTTP transport that uses the custom dialer
func NewCustomHTTPTransport(routeID, path string) *http.Transport {
transport := customTransportRegistry.Get(routeID, path)
if transport == nil {
// No custom transport registered, return standard transport
log.Warnf("No custom transport found for route %s (path: %s), using standard transport", routeID, path)
return &http.Transport{
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
}
// Configure transport based on whether we're using a connection or dialer
if transport.conn != nil {
// Using a pre-existing connection - disable pooling
return &http.Transport{
DialContext: transport.DialContext,
MaxIdleConns: 1,
MaxIdleConnsPerHost: 1,
IdleConnTimeout: 0, // Keep alive indefinitely
DisableKeepAlives: false,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
}
// Using a custom dialer - use normal pooling
return &http.Transport{
DialContext: transport.DialContext,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
}

13
proxy/main.go Normal file
View File

@@ -0,0 +1,13 @@
package main
import (
"os"
"github.com/netbirdio/netbird/proxy/cmd"
)
func main() {
if err := cmd.Execute(); err != nil {
os.Exit(1)
}
}

View File

@@ -0,0 +1,73 @@
package errors
import "fmt"
// Configuration errors
func NewConfigInvalid(message string) *AppError {
return New(CodeConfigInvalid, message)
}
func NewConfigNotFound(path string) *AppError {
return New(CodeConfigNotFound, fmt.Sprintf("configuration file not found: %s", path))
}
func WrapConfigParseFailed(err error, path string) *AppError {
return Wrap(CodeConfigParseFailed, fmt.Sprintf("failed to parse configuration file: %s", path), err)
}
// Server errors
func NewServerStartFailed(err error, reason string) *AppError {
return Wrap(CodeServerStartFailed, fmt.Sprintf("server start failed: %s", reason), err)
}
func NewServerStopFailed(err error) *AppError {
return Wrap(CodeServerStopFailed, "server shutdown failed", err)
}
func NewServerAlreadyRunning() *AppError {
return New(CodeServerAlreadyRunning, "server is already running")
}
func NewServerNotRunning() *AppError {
return New(CodeServerNotRunning, "server is not running")
}
// Proxy errors
func NewProxyBackendUnavailable(backend string, err error) *AppError {
return Wrap(CodeProxyBackendUnavailable, fmt.Sprintf("backend unavailable: %s", backend), err)
}
func NewProxyTimeout(backend string) *AppError {
return New(CodeProxyTimeout, fmt.Sprintf("request to backend timed out: %s", backend))
}
func NewProxyInvalidTarget(target string, err error) *AppError {
return Wrap(CodeProxyInvalidTarget, fmt.Sprintf("invalid proxy target: %s", target), err)
}
// Network errors
func NewNetworkTimeout(operation string) *AppError {
return New(CodeNetworkTimeout, fmt.Sprintf("network timeout: %s", operation))
}
func NewNetworkUnreachable(host string) *AppError {
return New(CodeNetworkUnreachable, fmt.Sprintf("network unreachable: %s", host))
}
func NewNetworkRefused(host string) *AppError {
return New(CodeNetworkRefused, fmt.Sprintf("connection refused: %s", host))
}
// Internal errors
func NewInternalError(message string) *AppError {
return New(CodeInternalError, message)
}
func WrapInternalError(err error, message string) *AppError {
return Wrap(CodeInternalError, message, err)
}

138
proxy/pkg/errors/errors.go Normal file
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@@ -0,0 +1,138 @@
package errors
import (
"errors"
"fmt"
)
// Error codes for categorizing errors
type Code string
const (
// Configuration errors
CodeConfigInvalid Code = "CONFIG_INVALID"
CodeConfigNotFound Code = "CONFIG_NOT_FOUND"
CodeConfigParseFailed Code = "CONFIG_PARSE_FAILED"
// Server errors
CodeServerStartFailed Code = "SERVER_START_FAILED"
CodeServerStopFailed Code = "SERVER_STOP_FAILED"
CodeServerAlreadyRunning Code = "SERVER_ALREADY_RUNNING"
CodeServerNotRunning Code = "SERVER_NOT_RUNNING"
// Proxy errors
CodeProxyBackendUnavailable Code = "PROXY_BACKEND_UNAVAILABLE"
CodeProxyTimeout Code = "PROXY_TIMEOUT"
CodeProxyInvalidTarget Code = "PROXY_INVALID_TARGET"
// Network errors
CodeNetworkTimeout Code = "NETWORK_TIMEOUT"
CodeNetworkUnreachable Code = "NETWORK_UNREACHABLE"
CodeNetworkRefused Code = "NETWORK_REFUSED"
// Internal errors
CodeInternalError Code = "INTERNAL_ERROR"
CodeUnknownError Code = "UNKNOWN_ERROR"
)
// AppError represents a structured application error
type AppError struct {
Code Code // Error code for categorization
Message string // Human-readable error message
Cause error // Underlying error (if any)
}
// Error implements the error interface
func (e *AppError) Error() string {
if e.Cause != nil {
return fmt.Sprintf("[%s] %s: %v", e.Code, e.Message, e.Cause)
}
return fmt.Sprintf("[%s] %s", e.Code, e.Message)
}
// Unwrap returns the underlying error (for errors.Is and errors.As)
func (e *AppError) Unwrap() error {
return e.Cause
}
// Is checks if the error matches the target
func (e *AppError) Is(target error) bool {
t, ok := target.(*AppError)
if !ok {
return false
}
return e.Code == t.Code
}
// New creates a new AppError
func New(code Code, message string) *AppError {
return &AppError{
Code: code,
Message: message,
}
}
// Wrap wraps an existing error with additional context
func Wrap(code Code, message string, cause error) *AppError {
return &AppError{
Code: code,
Message: message,
Cause: cause,
}
}
// Wrapf wraps an error with a formatted message
func Wrapf(code Code, cause error, format string, args ...interface{}) *AppError {
return &AppError{
Code: code,
Message: fmt.Sprintf(format, args...),
Cause: cause,
}
}
// GetCode extracts the error code from an error
func GetCode(err error) Code {
var appErr *AppError
if errors.As(err, &appErr) {
return appErr.Code
}
return CodeUnknownError
}
// HasCode checks if an error has a specific code
func HasCode(err error, code Code) bool {
return GetCode(err) == code
}
// IsConfigError checks if an error is configuration-related
func IsConfigError(err error) bool {
code := GetCode(err)
return code == CodeConfigInvalid ||
code == CodeConfigNotFound ||
code == CodeConfigParseFailed
}
// IsServerError checks if an error is server-related
func IsServerError(err error) bool {
code := GetCode(err)
return code == CodeServerStartFailed ||
code == CodeServerStopFailed ||
code == CodeServerAlreadyRunning ||
code == CodeServerNotRunning
}
// IsProxyError checks if an error is proxy-related
func IsProxyError(err error) bool {
code := GetCode(err)
return code == CodeProxyBackendUnavailable ||
code == CodeProxyTimeout ||
code == CodeProxyInvalidTarget
}
// IsNetworkError checks if an error is network-related
func IsNetworkError(err error) bool {
code := GetCode(err)
return code == CodeNetworkTimeout ||
code == CodeNetworkUnreachable ||
code == CodeNetworkRefused
}

View File

@@ -0,0 +1,160 @@
package errors
import (
"errors"
"testing"
)
func TestAppError_Error(t *testing.T) {
tests := []struct {
name string
err *AppError
expected string
}{
{
name: "error without cause",
err: New(CodeConfigInvalid, "invalid configuration"),
expected: "[CONFIG_INVALID] invalid configuration",
},
{
name: "error with cause",
err: Wrap(CodeServerStartFailed, "failed to bind port", errors.New("address already in use")),
expected: "[SERVER_START_FAILED] failed to bind port: address already in use",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := tt.err.Error(); got != tt.expected {
t.Errorf("Error() = %v, want %v", got, tt.expected)
}
})
}
}
func TestGetCode(t *testing.T) {
tests := []struct {
name string
err error
expected Code
}{
{
name: "app error",
err: New(CodeConfigInvalid, "test"),
expected: CodeConfigInvalid,
},
{
name: "wrapped app error",
err: Wrap(CodeServerStartFailed, "test", errors.New("cause")),
expected: CodeServerStartFailed,
},
{
name: "standard error",
err: errors.New("standard error"),
expected: CodeUnknownError,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := GetCode(tt.err); got != tt.expected {
t.Errorf("GetCode() = %v, want %v", got, tt.expected)
}
})
}
}
func TestHasCode(t *testing.T) {
err := New(CodeConfigInvalid, "invalid config")
if !HasCode(err, CodeConfigInvalid) {
t.Error("HasCode() should return true for matching code")
}
if HasCode(err, CodeServerStartFailed) {
t.Error("HasCode() should return false for non-matching code")
}
}
func TestIsConfigError(t *testing.T) {
tests := []struct {
name string
err error
expected bool
}{
{
name: "config invalid error",
err: New(CodeConfigInvalid, "test"),
expected: true,
},
{
name: "config not found error",
err: New(CodeConfigNotFound, "test"),
expected: true,
},
{
name: "server error",
err: New(CodeServerStartFailed, "test"),
expected: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := IsConfigError(tt.err); got != tt.expected {
t.Errorf("IsConfigError() = %v, want %v", got, tt.expected)
}
})
}
}
func TestErrorUnwrap(t *testing.T) {
cause := errors.New("root cause")
err := Wrap(CodeInternalError, "wrapped error", cause)
unwrapped := errors.Unwrap(err)
if unwrapped != cause {
t.Errorf("Unwrap() = %v, want %v", unwrapped, cause)
}
}
func TestErrorIs(t *testing.T) {
err1 := New(CodeConfigInvalid, "test1")
err2 := New(CodeConfigInvalid, "test2")
err3 := New(CodeServerStartFailed, "test3")
if !errors.Is(err1, err2) {
t.Error("errors.Is() should return true for same error code")
}
if errors.Is(err1, err3) {
t.Error("errors.Is() should return false for different error codes")
}
}
func TestCommonConstructors(t *testing.T) {
t.Run("NewConfigNotFound", func(t *testing.T) {
err := NewConfigNotFound("/path/to/config")
if GetCode(err) != CodeConfigNotFound {
t.Error("NewConfigNotFound should create CONFIG_NOT_FOUND error")
}
})
t.Run("NewServerAlreadyRunning", func(t *testing.T) {
err := NewServerAlreadyRunning()
if GetCode(err) != CodeServerAlreadyRunning {
t.Error("NewServerAlreadyRunning should create SERVER_ALREADY_RUNNING error")
}
})
t.Run("NewProxyBackendUnavailable", func(t *testing.T) {
cause := errors.New("connection refused")
err := NewProxyBackendUnavailable("http://backend", cause)
if GetCode(err) != CodeProxyBackendUnavailable {
t.Error("NewProxyBackendUnavailable should create PROXY_BACKEND_UNAVAILABLE error")
}
if !errors.Is(err.Unwrap(), cause) {
t.Error("NewProxyBackendUnavailable should wrap the cause")
}
})
}

File diff suppressed because it is too large Load Diff

View File

@@ -0,0 +1,159 @@
syntax = "proto3";
package proxy;
option go_package = "github.com/netbirdio/netbird/proxy/pkg/grpc/proto";
import "google/protobuf/timestamp.proto";
// ProxyService defines the bidirectional streaming service
// The proxy runs this service, control service connects as client
service ProxyService {
// Stream establishes a bidirectional stream between proxy and control service
// Control service (client) sends ControlMessage, Proxy (server) sends ProxyMessage
rpc Stream(stream ControlMessage) returns (stream ProxyMessage);
}
// ProxyMessage represents messages sent from proxy to control service
message ProxyMessage {
oneof message {
ProxyStats stats = 1;
ProxyEvent event = 2;
ProxyLog log = 3;
ProxyHeartbeat heartbeat = 4;
ProxyRequestData request_data = 5;
}
}
// ControlMessage represents messages sent from control service to proxy
message ControlMessage {
oneof message {
ControlEvent event = 1;
ControlCommand command = 2;
ControlConfig config = 3;
ExposedServiceEvent exposed_service = 4;
}
}
// ProxyStats contains proxy statistics
message ProxyStats {
google.protobuf.Timestamp timestamp = 1;
uint64 total_requests = 2;
uint64 active_connections = 3;
uint64 bytes_sent = 4;
uint64 bytes_received = 5;
double cpu_usage = 6;
double memory_usage_mb = 7;
map<string, uint64> status_code_counts = 8;
}
// ProxyEvent represents events from the proxy
message ProxyEvent {
google.protobuf.Timestamp timestamp = 1;
EventType type = 2;
string message = 3;
map<string, string> metadata = 4;
enum EventType {
UNKNOWN = 0;
STARTED = 1;
STOPPED = 2;
ERROR = 3;
BACKEND_UNAVAILABLE = 4;
BACKEND_RECOVERED = 5;
CONFIG_UPDATED = 6;
}
}
// ProxyLog represents log entries
message ProxyLog {
google.protobuf.Timestamp timestamp = 1;
LogLevel level = 2;
string message = 3;
map<string, string> fields = 4;
enum LogLevel {
DEBUG = 0;
INFO = 1;
WARN = 2;
ERROR = 3;
}
}
// ProxyHeartbeat is sent periodically to keep connection alive
message ProxyHeartbeat {
google.protobuf.Timestamp timestamp = 1;
string proxy_id = 2;
}
// ControlEvent represents events from control service
message ControlEvent {
google.protobuf.Timestamp timestamp = 1;
string event_id = 2;
string message = 3;
}
// ControlCommand represents commands sent to proxy
message ControlCommand {
string command_id = 1;
CommandType type = 2;
map<string, string> parameters = 3;
enum CommandType {
UNKNOWN = 0;
RELOAD_CONFIG = 1;
ENABLE_DEBUG = 2;
DISABLE_DEBUG = 3;
GET_STATS = 4;
SHUTDOWN = 5;
}
}
// ControlConfig contains configuration updates from control service
message ControlConfig {
string config_version = 1;
map<string, string> settings = 2;
}
// ExposedServiceEvent represents exposed service lifecycle events
message ExposedServiceEvent {
google.protobuf.Timestamp timestamp = 1;
EventType type = 2;
string service_id = 3;
PeerConfig peer_config = 4;
UpstreamConfig upstream_config = 5;
enum EventType {
UNKNOWN = 0;
CREATED = 1;
UPDATED = 2;
REMOVED = 3;
}
}
// PeerConfig contains WireGuard peer configuration
message PeerConfig {
string peer_id = 1;
string public_key = 2;
repeated string allowed_ips = 3;
string endpoint = 4;
string tunnel_ip = 5;
uint32 persistent_keepalive = 6;
}
// UpstreamConfig contains reverse proxy upstream configuration
message UpstreamConfig {
string domain = 1;
map<string, string> path_mappings = 2; // path -> port
}
// ProxyRequestData contains metadata about requests routed through the reverse proxy
message ProxyRequestData {
google.protobuf.Timestamp timestamp = 1;
string service_id = 2;
string path = 3;
int64 duration_ms = 4;
string method = 5; // HTTP method (GET, POST, PUT, DELETE, etc.)
int32 response_code = 6;
string source_ip = 7;
}

View File

@@ -0,0 +1,137 @@
// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
package proto
import (
context "context"
grpc "google.golang.org/grpc"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
)
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
// Requires gRPC-Go v1.32.0 or later.
const _ = grpc.SupportPackageIsVersion7
// ProxyServiceClient is the client API for ProxyService service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
type ProxyServiceClient interface {
// Stream establishes a bidirectional stream between proxy and control service
// Control service (client) sends ControlMessage, Proxy (server) sends ProxyMessage
Stream(ctx context.Context, opts ...grpc.CallOption) (ProxyService_StreamClient, error)
}
type proxyServiceClient struct {
cc grpc.ClientConnInterface
}
func NewProxyServiceClient(cc grpc.ClientConnInterface) ProxyServiceClient {
return &proxyServiceClient{cc}
}
func (c *proxyServiceClient) Stream(ctx context.Context, opts ...grpc.CallOption) (ProxyService_StreamClient, error) {
stream, err := c.cc.NewStream(ctx, &ProxyService_ServiceDesc.Streams[0], "/proxy.ProxyService/Stream", opts...)
if err != nil {
return nil, err
}
x := &proxyServiceStreamClient{stream}
return x, nil
}
type ProxyService_StreamClient interface {
Send(*ControlMessage) error
Recv() (*ProxyMessage, error)
grpc.ClientStream
}
type proxyServiceStreamClient struct {
grpc.ClientStream
}
func (x *proxyServiceStreamClient) Send(m *ControlMessage) error {
return x.ClientStream.SendMsg(m)
}
func (x *proxyServiceStreamClient) Recv() (*ProxyMessage, error) {
m := new(ProxyMessage)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// ProxyServiceServer is the server API for ProxyService service.
// All implementations must embed UnimplementedProxyServiceServer
// for forward compatibility
type ProxyServiceServer interface {
// Stream establishes a bidirectional stream between proxy and control service
// Control service (client) sends ControlMessage, Proxy (server) sends ProxyMessage
Stream(ProxyService_StreamServer) error
mustEmbedUnimplementedProxyServiceServer()
}
// UnimplementedProxyServiceServer must be embedded to have forward compatible implementations.
type UnimplementedProxyServiceServer struct {
}
func (UnimplementedProxyServiceServer) Stream(ProxyService_StreamServer) error {
return status.Errorf(codes.Unimplemented, "method Stream not implemented")
}
func (UnimplementedProxyServiceServer) mustEmbedUnimplementedProxyServiceServer() {}
// UnsafeProxyServiceServer may be embedded to opt out of forward compatibility for this service.
// Use of this interface is not recommended, as added methods to ProxyServiceServer will
// result in compilation errors.
type UnsafeProxyServiceServer interface {
mustEmbedUnimplementedProxyServiceServer()
}
func RegisterProxyServiceServer(s grpc.ServiceRegistrar, srv ProxyServiceServer) {
s.RegisterService(&ProxyService_ServiceDesc, srv)
}
func _ProxyService_Stream_Handler(srv interface{}, stream grpc.ServerStream) error {
return srv.(ProxyServiceServer).Stream(&proxyServiceStreamServer{stream})
}
type ProxyService_StreamServer interface {
Send(*ProxyMessage) error
Recv() (*ControlMessage, error)
grpc.ServerStream
}
type proxyServiceStreamServer struct {
grpc.ServerStream
}
func (x *proxyServiceStreamServer) Send(m *ProxyMessage) error {
return x.ServerStream.SendMsg(m)
}
func (x *proxyServiceStreamServer) Recv() (*ControlMessage, error) {
m := new(ControlMessage)
if err := x.ServerStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// ProxyService_ServiceDesc is the grpc.ServiceDesc for ProxyService service.
// It's only intended for direct use with grpc.RegisterService,
// and not to be introspected or modified (even as a copy)
var ProxyService_ServiceDesc = grpc.ServiceDesc{
ServiceName: "proxy.ProxyService",
HandlerType: (*ProxyServiceServer)(nil),
Methods: []grpc.MethodDesc{},
Streams: []grpc.StreamDesc{
{
StreamName: "Stream",
Handler: _ProxyService_Stream_Handler,
ServerStreams: true,
ClientStreams: true,
},
},
Metadata: "pkg/grpc/proto/proxy.proto",
}

286
proxy/pkg/grpc/server.go Normal file
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package grpc
import (
"context"
"fmt"
"net"
"sync"
"time"
log "github.com/sirupsen/logrus"
"google.golang.org/grpc"
"google.golang.org/grpc/keepalive"
pb "github.com/netbirdio/netbird/proxy/pkg/grpc/proto"
)
// StreamHandler handles incoming messages from control service
type StreamHandler interface {
HandleControlEvent(ctx context.Context, event *pb.ControlEvent) error
HandleControlCommand(ctx context.Context, command *pb.ControlCommand) error
HandleControlConfig(ctx context.Context, config *pb.ControlConfig) error
HandleExposedServiceEvent(ctx context.Context, event *pb.ExposedServiceEvent) error
}
// Server represents the gRPC server running on the proxy
type Server struct {
pb.UnimplementedProxyServiceServer
listenAddr string
grpcServer *grpc.Server
handler StreamHandler
mu sync.RWMutex
streams map[string]*StreamContext
isRunning bool
}
// StreamContext holds the context for each active stream
type StreamContext struct {
stream pb.ProxyService_StreamServer
sendChan chan *pb.ProxyMessage
ctx context.Context
cancel context.CancelFunc
controlID string // ID of the connected control service
}
// Config holds gRPC server configuration
type Config struct {
ListenAddr string
Handler StreamHandler
}
// NewServer creates a new gRPC server
func NewServer(config Config) *Server {
return &Server{
listenAddr: config.ListenAddr,
handler: config.Handler,
streams: make(map[string]*StreamContext),
}
}
// Start starts the gRPC server
func (s *Server) Start() error {
s.mu.Lock()
if s.isRunning {
s.mu.Unlock()
return fmt.Errorf("gRPC server already running")
}
s.isRunning = true
s.mu.Unlock()
lis, err := net.Listen("tcp", s.listenAddr)
if err != nil {
s.mu.Lock()
s.isRunning = false
s.mu.Unlock()
return fmt.Errorf("failed to listen: %w", err)
}
// Configure gRPC server with keepalive
s.grpcServer = grpc.NewServer(
grpc.KeepaliveParams(keepalive.ServerParameters{
Time: 30 * time.Second,
Timeout: 10 * time.Second,
}),
grpc.KeepaliveEnforcementPolicy(keepalive.EnforcementPolicy{
MinTime: 10 * time.Second,
PermitWithoutStream: true,
}),
)
pb.RegisterProxyServiceServer(s.grpcServer, s)
log.Infof("gRPC server listening on %s", s.listenAddr)
if err := s.grpcServer.Serve(lis); err != nil {
s.mu.Lock()
s.isRunning = false
s.mu.Unlock()
return fmt.Errorf("failed to serve: %w", err)
}
return nil
}
// Stop gracefully stops the gRPC server
func (s *Server) Stop(ctx context.Context) error {
s.mu.Lock()
if !s.isRunning {
s.mu.Unlock()
return fmt.Errorf("gRPC server not running")
}
s.mu.Unlock()
log.Info("Stopping gRPC server...")
// Cancel all active streams
s.mu.Lock()
for _, streamCtx := range s.streams {
streamCtx.cancel()
close(streamCtx.sendChan)
}
s.streams = make(map[string]*StreamContext)
s.mu.Unlock()
// Graceful stop with timeout
stopped := make(chan struct{})
go func() {
s.grpcServer.GracefulStop()
close(stopped)
}()
select {
case <-stopped:
log.Info("gRPC server stopped gracefully")
case <-ctx.Done():
log.Warn("gRPC server graceful stop timeout, forcing stop")
s.grpcServer.Stop()
}
s.mu.Lock()
s.isRunning = false
s.mu.Unlock()
return nil
}
// Stream implements the bidirectional streaming RPC
// The control service connects as client, proxy is server
// Control service sends ControlMessage, Proxy sends ProxyMessage
func (s *Server) Stream(stream pb.ProxyService_StreamServer) error {
ctx, cancel := context.WithCancel(stream.Context())
defer cancel()
controlID := fmt.Sprintf("control-%d", time.Now().Unix())
// Create stream context
streamCtx := &StreamContext{
stream: stream,
sendChan: make(chan *pb.ProxyMessage, 100),
ctx: ctx,
cancel: cancel,
controlID: controlID,
}
// Register stream
s.mu.Lock()
s.streams[controlID] = streamCtx
s.mu.Unlock()
log.Infof("Control service connected: %s", controlID)
// Start goroutine to send ProxyMessages to control service
sendDone := make(chan error, 1)
go s.sendLoop(streamCtx, sendDone)
// Start goroutine to receive ControlMessages from control service
recvDone := make(chan error, 1)
go s.receiveLoop(streamCtx, recvDone)
// Wait for either send or receive to complete
select {
case err := <-sendDone:
log.Infof("Control service %s send loop ended: %v", controlID, err)
return err
case err := <-recvDone:
log.Infof("Control service %s receive loop ended: %v", controlID, err)
return err
case <-ctx.Done():
log.Infof("Control service %s context done: %v", controlID, ctx.Err())
return ctx.Err()
}
}
// sendLoop handles sending ProxyMessages to the control service
func (s *Server) sendLoop(streamCtx *StreamContext, done chan<- error) {
for {
select {
case msg, ok := <-streamCtx.sendChan:
if !ok {
done <- nil
return
}
// Send ProxyMessage to control service
if err := streamCtx.stream.Send(msg); err != nil {
log.Errorf("Failed to send message to control service: %v", err)
done <- err
return
}
case <-streamCtx.ctx.Done():
done <- streamCtx.ctx.Err()
return
}
}
}
// receiveLoop handles receiving ControlMessages from the control service
func (s *Server) receiveLoop(streamCtx *StreamContext, done chan<- error) {
for {
// Receive ControlMessage from control service (client)
controlMsg, err := streamCtx.stream.Recv()
if err != nil {
log.Debugf("Stream receive error: %v", err)
done <- err
return
}
// Handle different ControlMessage types
switch m := controlMsg.Message.(type) {
case *pb.ControlMessage_Event:
if s.handler != nil {
if err := s.handler.HandleControlEvent(streamCtx.ctx, m.Event); err != nil {
log.Errorf("Failed to handle control event: %v", err)
}
}
case *pb.ControlMessage_Command:
if s.handler != nil {
if err := s.handler.HandleControlCommand(streamCtx.ctx, m.Command); err != nil {
log.Errorf("Failed to handle control command: %v", err)
}
}
case *pb.ControlMessage_Config:
if s.handler != nil {
if err := s.handler.HandleControlConfig(streamCtx.ctx, m.Config); err != nil {
log.Errorf("Failed to handle control config: %v", err)
}
}
case *pb.ControlMessage_ExposedService:
if s.handler != nil {
if err := s.handler.HandleExposedServiceEvent(streamCtx.ctx, m.ExposedService); err != nil {
log.Errorf("Failed to handle exposed service event: %v", err)
}
}
default:
log.Warnf("Received unknown control message type: %T", m)
}
}
}
// SendProxyMessage sends a ProxyMessage to all connected control services
func (s *Server) SendProxyMessage(msg *pb.ProxyMessage) {
s.mu.RLock()
defer s.mu.RUnlock()
for _, streamCtx := range s.streams {
select {
case streamCtx.sendChan <- msg:
// Message queued successfully
default:
log.Warn("Send channel full, dropping message")
}
}
}
// GetActiveStreams returns the number of active streams
func (s *Server) GetActiveStreams() int {
s.mu.RLock()
defer s.mu.RUnlock()
return len(s.streams)
}

125
proxy/pkg/proxy/config.go Normal file
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package proxy
import (
"encoding/json"
"errors"
"fmt"
"os"
"time"
"github.com/caarlos0/env/v11"
)
var (
ErrFailedToParseConfig = errors.New("failed to parse config from env")
)
// Config holds the configuration for the reverse proxy server
type Config struct {
// ListenAddress is the address the proxy server will listen on (e.g., ":443" or "0.0.0.0:443")
ListenAddress string `env:"NB_PROXY_LISTEN_ADDRESS" envDefault:":443" json:"listen_address"`
// ReadTimeout is the maximum duration for reading the entire request, including the body
ReadTimeout time.Duration `env:"NB_PROXY_READ_TIMEOUT" envDefault:"30s" json:"read_timeout"`
// WriteTimeout is the maximum duration before timing out writes of the response
WriteTimeout time.Duration `env:"NB_PROXY_WRITE_TIMEOUT" envDefault:"30s" json:"write_timeout"`
// IdleTimeout is the maximum amount of time to wait for the next request when keep-alives are enabled
IdleTimeout time.Duration `env:"NB_PROXY_IDLE_TIMEOUT" envDefault:"60s" json:"idle_timeout"`
// ShutdownTimeout is the maximum duration to wait for graceful shutdown
ShutdownTimeout time.Duration `env:"NB_PROXY_SHUTDOWN_TIMEOUT" envDefault:"10s" json:"shutdown_timeout"`
// LogLevel sets the logging verbosity (debug, info, warn, error)
LogLevel string `env:"NB_PROXY_LOG_LEVEL" envDefault:"info" json:"log_level"`
// GRPCListenAddress is the address for the gRPC control server (empty to disable)
GRPCListenAddress string `env:"NB_PROXY_GRPC_LISTEN_ADDRESS" envDefault:":50051" json:"grpc_listen_address"`
// ProxyID is a unique identifier for this proxy instance
ProxyID string `env:"NB_PROXY_ID" envDefault:"" json:"proxy_id"`
// EnableGRPC enables the gRPC control server
EnableGRPC bool `env:"NB_PROXY_ENABLE_GRPC" envDefault:"false" json:"enable_grpc"`
}
// ParseAndLoad parses configuration from environment variables
func ParseAndLoad() (Config, error) {
var cfg Config
if err := env.Parse(&cfg); err != nil {
return cfg, fmt.Errorf("%w: %s", ErrFailedToParseConfig, err)
}
if err := cfg.Validate(); err != nil {
return cfg, fmt.Errorf("invalid config: %w", err)
}
return cfg, nil
}
// LoadFromFile reads configuration from a JSON file
func LoadFromFile(path string) (Config, error) {
data, err := os.ReadFile(path)
if err != nil {
return Config{}, fmt.Errorf("failed to read config file: %w", err)
}
var cfg Config
if err := json.Unmarshal(data, &cfg); err != nil {
return Config{}, fmt.Errorf("failed to parse config file: %w", err)
}
if err := cfg.Validate(); err != nil {
return Config{}, fmt.Errorf("invalid config: %w", err)
}
return cfg, nil
}
// LoadFromFileOrEnv loads configuration from a file if path is provided, otherwise from environment variables
// Environment variables will override file-based configuration if both are present
func LoadFromFileOrEnv(configPath string) (Config, error) {
var cfg Config
// If config file is provided, load it first
if configPath != "" {
fileCfg, err := LoadFromFile(configPath)
if err != nil {
return Config{}, fmt.Errorf("failed to load config from file: %w", err)
}
cfg = fileCfg
}
// Parse environment variables (will override file config with any set env vars)
if err := env.Parse(&cfg); err != nil {
return Config{}, fmt.Errorf("%w: %s", ErrFailedToParseConfig, err)
}
if err := cfg.Validate(); err != nil {
return Config{}, fmt.Errorf("invalid config: %w", err)
}
return cfg, nil
}
// Validate checks if the configuration is valid
func (c *Config) Validate() error {
if c.ListenAddress == "" {
return errors.New("listen_address is required")
}
validLogLevels := map[string]bool{
"debug": true,
"info": true,
"warn": true,
"error": true,
}
if !validLogLevels[c.LogLevel] {
return fmt.Errorf("invalid log_level: %s (must be debug, info, warn, or error)", c.LogLevel)
}
return nil
}

570
proxy/pkg/proxy/server.go Normal file
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package proxy
import (
"context"
"fmt"
"sync"
"time"
log "github.com/sirupsen/logrus"
"google.golang.org/protobuf/types/known/timestamppb"
"github.com/netbirdio/netbird/proxy/internal/reverseproxy"
grpcpkg "github.com/netbirdio/netbird/proxy/pkg/grpc"
pb "github.com/netbirdio/netbird/proxy/pkg/grpc/proto"
)
// Server represents the reverse proxy server with integrated gRPC control server
type Server struct {
config Config
grpcServer *grpcpkg.Server
caddyProxy *reverseproxy.CaddyProxy
mu sync.RWMutex
isRunning bool
grpcRunning bool
shutdownCtx context.Context
cancelFunc context.CancelFunc
// Statistics for gRPC reporting
stats *Stats
// Track exposed services and their peer configs
exposedServices map[string]*ExposedServiceConfig
}
// Stats holds proxy statistics
type Stats struct {
mu sync.RWMutex
totalRequests uint64
activeConns uint64
bytesSent uint64
bytesReceived uint64
}
// ExposedServiceConfig holds the configuration for an exposed service
type ExposedServiceConfig struct {
ServiceID string
PeerConfig *PeerConfig
UpstreamConfig *UpstreamConfig
}
// PeerConfig holds WireGuard peer configuration
type PeerConfig struct {
PeerID string
PublicKey string
AllowedIPs []string
Endpoint string
TunnelIP string // The WireGuard tunnel IP to route traffic to
}
// UpstreamConfig holds reverse proxy upstream configuration
type UpstreamConfig struct {
Domain string
PathMappings map[string]string // path -> port mapping (relative to tunnel IP)
}
// NewServer creates a new reverse proxy server instance
func NewServer(config Config) (*Server, error) {
// Validate config
if err := config.Validate(); err != nil {
return nil, fmt.Errorf("invalid configuration: %w", err)
}
shutdownCtx, cancelFunc := context.WithCancel(context.Background())
server := &Server{
config: config,
isRunning: false,
grpcRunning: false,
shutdownCtx: shutdownCtx,
cancelFunc: cancelFunc,
stats: &Stats{},
exposedServices: make(map[string]*ExposedServiceConfig),
}
// Create Caddy reverse proxy with request callback
caddyConfig := reverseproxy.Config{
ListenAddress: ":54321", // Use port 54321 for local testing
EnableHTTPS: false, // TODO: Add HTTPS support
RequestDataCallback: func(data *reverseproxy.RequestData) {
// This is where access log data arrives - SET BREAKPOINT HERE
log.WithFields(log.Fields{
"service_id": data.ServiceID,
"method": data.Method,
"path": data.Path,
"response_code": data.ResponseCode,
"duration_ms": data.DurationMs,
"source_ip": data.SourceIP,
}).Info("Access log received")
// TODO: Send via gRPC to control service
// This would send pb.ProxyRequestData via the gRPC stream
},
}
caddyProxy, err := reverseproxy.New(caddyConfig)
if err != nil {
return nil, fmt.Errorf("failed to create Caddy proxy: %w", err)
}
server.caddyProxy = caddyProxy
// Create gRPC server if enabled
if config.EnableGRPC && config.GRPCListenAddress != "" {
grpcConfig := grpcpkg.Config{
ListenAddr: config.GRPCListenAddress,
Handler: server, // Server implements StreamHandler interface
}
server.grpcServer = grpcpkg.NewServer(grpcConfig)
}
return server, nil
}
// Start starts the reverse proxy server and optionally the gRPC control server
func (s *Server) Start() error {
s.mu.Lock()
if s.isRunning {
s.mu.Unlock()
return fmt.Errorf("server is already running")
}
s.isRunning = true
s.mu.Unlock()
log.Infof("Starting Caddy reverse proxy server on %s", s.config.ListenAddress)
// Start Caddy proxy
if err := s.caddyProxy.Start(); err != nil {
s.mu.Lock()
s.isRunning = false
s.mu.Unlock()
return fmt.Errorf("failed to start Caddy proxy: %w", err)
}
// Start gRPC server if configured
if s.grpcServer != nil {
s.mu.Lock()
s.grpcRunning = true
s.mu.Unlock()
go func() {
log.Infof("Starting gRPC control server on %s", s.config.GRPCListenAddress)
if err := s.grpcServer.Start(); err != nil {
log.Errorf("gRPC server error: %v", err)
s.mu.Lock()
s.grpcRunning = false
s.mu.Unlock()
}
}()
// Send started event
time.Sleep(100 * time.Millisecond) // Give gRPC server time to start
s.sendProxyEvent(pb.ProxyEvent_STARTED, "Proxy server started")
}
if err := s.caddyProxy.AddRoute(
&reverseproxy.RouteConfig{
ID: "test",
Domain: "test.netbird.io",
PathMappings: map[string]string{"/": "localhost:8080"},
}); err != nil {
log.Warn("Failed to add test route: ", err)
}
// Block forever - Caddy runs in background
<-s.shutdownCtx.Done()
return nil
}
// Stop gracefully shuts down both Caddy and gRPC servers
func (s *Server) Stop(ctx context.Context) error {
s.mu.Lock()
if !s.isRunning {
s.mu.Unlock()
return fmt.Errorf("server is not running")
}
s.mu.Unlock()
log.Info("Shutting down servers gracefully...")
// If no context provided, use the server's shutdown timeout
if ctx == nil {
var cancel context.CancelFunc
ctx, cancel = context.WithTimeout(context.Background(), s.config.ShutdownTimeout)
defer cancel()
}
// Send stopped event before shutdown
if s.grpcServer != nil && s.grpcRunning {
s.sendProxyEvent(pb.ProxyEvent_STOPPED, "Proxy server shutting down")
}
var caddyErr, grpcErr error
// Shutdown gRPC server first
if s.grpcServer != nil && s.grpcRunning {
if err := s.grpcServer.Stop(ctx); err != nil {
grpcErr = fmt.Errorf("gRPC server shutdown failed: %w", err)
log.Error(grpcErr)
}
s.mu.Lock()
s.grpcRunning = false
s.mu.Unlock()
}
// Shutdown Caddy proxy
if err := s.caddyProxy.Stop(ctx); err != nil {
caddyErr = fmt.Errorf("Caddy proxy shutdown failed: %w", err)
log.Error(caddyErr)
}
s.mu.Lock()
s.isRunning = false
s.mu.Unlock()
if caddyErr != nil {
return caddyErr
}
if grpcErr != nil {
return grpcErr
}
log.Info("All servers stopped successfully")
return nil
}
// IsRunning returns whether the server is currently running
func (s *Server) IsRunning() bool {
s.mu.RLock()
defer s.mu.RUnlock()
return s.isRunning
}
// GetConfig returns a copy of the server configuration
func (s *Server) GetConfig() Config {
return s.config
}
// GetStats returns a copy of current statistics
func (s *Server) GetStats() *pb.ProxyStats {
s.stats.mu.RLock()
defer s.stats.mu.RUnlock()
return &pb.ProxyStats{
Timestamp: timestamppb.Now(),
TotalRequests: s.stats.totalRequests,
ActiveConnections: s.stats.activeConns,
BytesSent: s.stats.bytesSent,
BytesReceived: s.stats.bytesReceived,
}
}
// StreamHandler interface implementation
// HandleControlEvent handles incoming control events
// This is where ExposedService events will be routed
func (s *Server) HandleControlEvent(ctx context.Context, event *pb.ControlEvent) error {
log.WithFields(log.Fields{
"event_id": event.EventId,
"message": event.Message,
}).Info("Received control event")
// TODO: Parse event type and route to appropriate handler
// if event.Type == "ExposedServiceCreated" {
// return s.handleExposedServiceCreated(ctx, event)
// } else if event.Type == "ExposedServiceUpdated" {
// return s.handleExposedServiceUpdated(ctx, event)
// } else if event.Type == "ExposedServiceRemoved" {
// return s.handleExposedServiceRemoved(ctx, event)
// }
return nil
}
// HandleControlCommand handles incoming control commands
func (s *Server) HandleControlCommand(ctx context.Context, command *pb.ControlCommand) error {
log.WithFields(log.Fields{
"command_id": command.CommandId,
"type": command.Type.String(),
}).Info("Received control command")
switch command.Type {
case pb.ControlCommand_GET_STATS:
// Stats are automatically sent, just log
log.Debug("Stats requested via command")
case pb.ControlCommand_RELOAD_CONFIG:
log.Info("Config reload requested (not implemented yet)")
case pb.ControlCommand_ENABLE_DEBUG:
log.SetLevel(log.DebugLevel)
log.Info("Debug logging enabled")
case pb.ControlCommand_DISABLE_DEBUG:
log.SetLevel(log.InfoLevel)
log.Info("Debug logging disabled")
case pb.ControlCommand_SHUTDOWN:
log.Warn("Shutdown command received")
go func() {
time.Sleep(1 * time.Second)
s.cancelFunc() // Trigger graceful shutdown
}()
}
return nil
}
// HandleControlConfig handles incoming configuration updates
func (s *Server) HandleControlConfig(ctx context.Context, config *pb.ControlConfig) error {
log.WithFields(log.Fields{
"config_version": config.ConfigVersion,
"settings": config.Settings,
}).Info("Received config update")
return nil
}
// HandleExposedServiceEvent handles exposed service lifecycle events
func (s *Server) HandleExposedServiceEvent(ctx context.Context, event *pb.ExposedServiceEvent) error {
log.WithFields(log.Fields{
"service_id": event.ServiceId,
"type": event.Type.String(),
}).Info("Received exposed service event")
// Convert proto types to internal types
peerConfig := &PeerConfig{
PeerID: event.PeerConfig.PeerId,
PublicKey: event.PeerConfig.PublicKey,
AllowedIPs: event.PeerConfig.AllowedIps,
Endpoint: event.PeerConfig.Endpoint,
TunnelIP: event.PeerConfig.TunnelIp,
}
upstreamConfig := &UpstreamConfig{
Domain: event.UpstreamConfig.Domain,
PathMappings: event.UpstreamConfig.PathMappings,
}
// Route to appropriate handler based on event type
switch event.Type {
case pb.ExposedServiceEvent_CREATED:
return s.handleExposedServiceCreated(event.ServiceId, peerConfig, upstreamConfig)
case pb.ExposedServiceEvent_UPDATED:
return s.handleExposedServiceUpdated(event.ServiceId, peerConfig, upstreamConfig)
case pb.ExposedServiceEvent_REMOVED:
return s.handleExposedServiceRemoved(event.ServiceId)
default:
return fmt.Errorf("unknown exposed service event type: %v", event.Type)
}
}
// Exposed Service Handlers
// handleExposedServiceCreated handles the creation of a new exposed service
func (s *Server) handleExposedServiceCreated(serviceID string, peerConfig *PeerConfig, upstreamConfig *UpstreamConfig) error {
s.mu.Lock()
defer s.mu.Unlock()
// Check if service already exists
if _, exists := s.exposedServices[serviceID]; exists {
return fmt.Errorf("exposed service %s already exists", serviceID)
}
log.WithFields(log.Fields{
"service_id": serviceID,
"peer_id": peerConfig.PeerID,
"tunnel_ip": peerConfig.TunnelIP,
"domain": upstreamConfig.Domain,
}).Info("Creating exposed service")
// TODO: Create WireGuard tunnel for peer
// 1. Initialize WireGuard interface if not already done
// 2. Add peer configuration:
// - Public key: peerConfig.PublicKey
// - Endpoint: peerConfig.Endpoint
// - Allowed IPs: peerConfig.AllowedIPs
// - Persistent keepalive: 25 seconds
// 3. Bring up the WireGuard interface
// 4. Verify tunnel connectivity to peerConfig.TunnelIP
// Example pseudo-code:
// wgClient.AddPeer(&wireguard.PeerConfig{
// PublicKey: peerConfig.PublicKey,
// Endpoint: peerConfig.Endpoint,
// AllowedIPs: peerConfig.AllowedIPs,
// PersistentKeepalive: 25,
// })
// Build path mappings with tunnel IP
pathMappings := make(map[string]string)
for path, port := range upstreamConfig.PathMappings {
// Combine tunnel IP with port
target := fmt.Sprintf("%s:%s", peerConfig.TunnelIP, port)
pathMappings[path] = target
}
// Add route to Caddy
route := &reverseproxy.RouteConfig{
ID: serviceID,
Domain: upstreamConfig.Domain,
PathMappings: pathMappings,
}
if err := s.caddyProxy.AddRoute(route); err != nil {
return fmt.Errorf("failed to add route: %w", err)
}
// Store service config
s.exposedServices[serviceID] = &ExposedServiceConfig{
ServiceID: serviceID,
PeerConfig: peerConfig,
UpstreamConfig: upstreamConfig,
}
log.Infof("Exposed service %s created successfully", serviceID)
return nil
}
// handleExposedServiceUpdated handles updates to an existing exposed service
func (s *Server) handleExposedServiceUpdated(serviceID string, peerConfig *PeerConfig, upstreamConfig *UpstreamConfig) error {
s.mu.Lock()
defer s.mu.Unlock()
// Check if service exists
if _, exists := s.exposedServices[serviceID]; !exists {
return fmt.Errorf("exposed service %s not found", serviceID)
}
log.WithFields(log.Fields{
"service_id": serviceID,
"peer_id": peerConfig.PeerID,
"tunnel_ip": peerConfig.TunnelIP,
"domain": upstreamConfig.Domain,
}).Info("Updating exposed service")
// TODO: Update WireGuard tunnel if peer config changed
// Build path mappings with tunnel IP
pathMappings := make(map[string]string)
for path, port := range upstreamConfig.PathMappings {
target := fmt.Sprintf("%s:%s", peerConfig.TunnelIP, port)
pathMappings[path] = target
}
// Update route in Caddy
route := &reverseproxy.RouteConfig{
ID: serviceID,
Domain: upstreamConfig.Domain,
PathMappings: pathMappings,
}
if err := s.caddyProxy.UpdateRoute(route); err != nil {
return fmt.Errorf("failed to update route: %w", err)
}
// Update service config
s.exposedServices[serviceID] = &ExposedServiceConfig{
ServiceID: serviceID,
PeerConfig: peerConfig,
UpstreamConfig: upstreamConfig,
}
log.Infof("Exposed service %s updated successfully", serviceID)
return nil
}
// handleExposedServiceRemoved handles the removal of an exposed service
func (s *Server) handleExposedServiceRemoved(serviceID string) error {
s.mu.Lock()
defer s.mu.Unlock()
// Check if service exists
if _, exists := s.exposedServices[serviceID]; !exists {
return fmt.Errorf("exposed service %s not found", serviceID)
}
log.WithFields(log.Fields{
"service_id": serviceID,
}).Info("Removing exposed service")
// Remove route from Caddy
if err := s.caddyProxy.RemoveRoute(serviceID); err != nil {
return fmt.Errorf("failed to remove route: %w", err)
}
// TODO: Remove WireGuard tunnel for peer
// Remove service config
delete(s.exposedServices, serviceID)
log.Infof("Exposed service %s removed successfully", serviceID)
return nil
}
// ListExposedServices returns a list of all exposed service IDs
func (s *Server) ListExposedServices() []string {
s.mu.RLock()
defer s.mu.RUnlock()
services := make([]string, 0, len(s.exposedServices))
for id := range s.exposedServices {
services = append(services, id)
}
return services
}
// GetExposedService returns the configuration for a specific exposed service
func (s *Server) GetExposedService(serviceID string) (*ExposedServiceConfig, error) {
s.mu.RLock()
defer s.mu.RUnlock()
service, exists := s.exposedServices[serviceID]
if !exists {
return nil, fmt.Errorf("exposed service %s not found", serviceID)
}
return service, nil
}
// Helper methods
func (s *Server) sendProxyEvent(eventType pb.ProxyEvent_EventType, message string) {
// This would typically be called to send events
// The actual sending happens via the gRPC stream
log.WithFields(log.Fields{
"type": eventType.String(),
"message": message,
}).Debug("Proxy event")
}
// Stats methods
func (s *Stats) IncrementRequests() {
s.mu.Lock()
defer s.mu.Unlock()
s.totalRequests++
}
func (s *Stats) IncrementActiveConns() {
s.mu.Lock()
defer s.mu.Unlock()
s.activeConns++
}
func (s *Stats) DecrementActiveConns() {
s.mu.Lock()
defer s.mu.Unlock()
if s.activeConns > 0 {
s.activeConns--
}
}
func (s *Stats) AddBytesSent(bytes uint64) {
s.mu.Lock()
defer s.mu.Unlock()
s.bytesSent += bytes
}
func (s *Stats) AddBytesReceived(bytes uint64) {
s.mu.Lock()
defer s.mu.Unlock()
s.bytesReceived += bytes
}

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@@ -0,0 +1,56 @@
package version
import (
"fmt"
"runtime"
)
var (
// Version is the application version (set via ldflags during build)
Version = "dev"
// Commit is the git commit hash (set via ldflags during build)
Commit = "unknown"
// BuildDate is the build date (set via ldflags during build)
BuildDate = "unknown"
// GoVersion is the Go version used to build the binary
GoVersion = runtime.Version()
)
// Info contains version information
type Info struct {
Version string `json:"version"`
Commit string `json:"commit"`
BuildDate string `json:"build_date"`
GoVersion string `json:"go_version"`
OS string `json:"os"`
Arch string `json:"arch"`
}
// Get returns the version information
func Get() Info {
return Info{
Version: Version,
Commit: Commit,
BuildDate: BuildDate,
GoVersion: GoVersion,
OS: runtime.GOOS,
Arch: runtime.GOARCH,
}
}
// String returns a formatted version string
func String() string {
return fmt.Sprintf("Version: %s, Commit: %s, BuildDate: %s, Go: %s",
Version, Commit, BuildDate, GoVersion)
}
// Short returns a short version string
func Short() string {
if Version == "dev" {
return fmt.Sprintf("%s (%s)", Version, Commit[:7])
}
return Version
}

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31
proxy/scripts/generate-proto.sh Executable file
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@@ -0,0 +1,31 @@
#!/bin/bash
set -e
# Check if protoc is installed
if ! command -v protoc &> /dev/null; then
echo "Error: protoc is not installed"
echo "Install with: apt-get install -y protobuf-compiler"
exit 1
fi
# Check if protoc-gen-go is installed
if ! command -v protoc-gen-go &> /dev/null; then
echo "Installing protoc-gen-go..."
go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
fi
# Check if protoc-gen-go-grpc is installed
if ! command -v protoc-gen-go-grpc &> /dev/null; then
echo "Installing protoc-gen-go-grpc..."
go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
fi
echo "Generating protobuf files..."
# Generate Go code from proto files
protoc --go_out=. --go_opt=paths=source_relative \
--go-grpc_out=. --go-grpc_opt=paths=source_relative \
pkg/grpc/proto/proxy.proto
echo "Proto generation complete!"