* Gather fresh system info on every management sync stream connect The engine collected the peer meta once at start and reused the same Info for every Sync stream reconnect, so a mobile network switch that redials management kept reporting the old local network addresses. The peer network range posture check was then evaluated against stale data until the client restarted. Sync now takes a gatherer that runs at each stream connect. The gatherer is cheap: GetInfo plus the cached posture check file results, kept in the new system.InfoSource, which the engine refreshes whenever the checks list changes. No process enumeration runs on the reconnect path. Also fix the management mock server calling itself instead of SyncFunc. * Evaluate the login response posture checks before the first sync connect The engine starts with the checks the login response carried, and the first sync stream request used to send their evaluated file results. After moving the gather into InfoSource, the stream opened with an empty cache and the first sync response did not refill it, because its checks equal the ones the engine already holds. Desktop peers therefore never reported process or file posture results. Seed the cache once before the first connect, where the old gather ran, so a timed out evaluation still falls through to the address-only info. * Harden the sync info source against nil callbacks and shared slices A nil getInfo opens the stream without metadata, as a nil sysInfo did before. The cached posture results are a copy, so the Info returned by Refresh cannot alias the snapshot later Current calls report. The exclusion test asserts the remaining address count so it cannot pass vacuously on a single-address host. * Retry a posture check refresh that timed out or failed to sync The checks list was recorded before the gather ran, so once the gather timed out or SyncMeta failed, the next sync response carrying the same list matched the recorded one and nothing retried. The peer kept reporting the previous posture results until the list changed again. Record the checks only after the meta reached management, so a failed cycle is repeated on the next sync response. * Log the skipped posture refresh, let the mock Sync return errors and deflake the reconnect test * Drop the nil guard around the sync info callback * Send the refreshed info on the first sync connect instead of gathering it twice
netbird Management Server
netbird management server will control and synchronize peers configuration within your Netbird account and network.
Command Options
The CLI accepts the command management with the following options:
start Netbird Management Server
Usage:
netbird-mgmt management [flags]
Flags:
--cert-file string Location of your SSL certificate. Can be used when you have an existing certificate and don't want a new certificate be generated automatically. If letsencrypt-domain is specified this property has no effect
--cert-key string Location of your SSL certificate private key. Can be used when you have an existing certificate and don't want a new certificate be generated automatically. If letsencrypt-domain is specified this property has no effect
--datadir string server data directory location
-h, --help help for management
--letsencrypt-domain string a domain to issue Let's Encrypt certificate for. Enables TLS using Let's Encrypt. Will fetch and renew certificate, and run the server with TLS
--port int server port to listen on (default 33073)
Global Flags:
--config string Netbird config file location to write new config to (default "/etc/netbird")
--log-file string sets Netbird log path. If console is specified the the log will be output to stdout (default "/var/log/netbird/management.log")
--log-level string (default "info")
Run Management service (Docker)
You can run service in 2 modes - with TLS or without (not recommended).
Run with TLS (Let's Encrypt).
By specifying the --letsencrypt-domain the daemon will handle SSL certificate request and configuration.
In the following example 33073 is the management service default port, and 443 will be used as port for Let's Encrypt challenge and HTTP API.
The server where you are running a container has to have a public IP (for Let's Encrypt certificate challenge).
Replace with your server's public domain (e.g. mydomain.com or subdomain sub.mydomain.com).
# create a volume
docker volume create netbird-mgmt
# run the docker container
docker run -d --name netbird-management \
-p 33073:33073 \
-p 443:443 \
-v netbird-mgmt:/var/lib/netbird \
-v ./config.json:/etc/netbird/config.json \
netbirdio/management:latest \
--letsencrypt-domain <YOUR-DOMAIN>
An example of config.json can be found here management.json
Trigger Let's encrypt certificate generation:
curl https://<YOUR-DOMAIN>
The certificate will be persisted in the datadir/letsencrypt/ folder (e.g. /var/lib/netbird/letsencrypt/) inside the container.
Make sure that the datadir is mapped to some folder on a host machine. In case you used the volume command, you can run the following to retrieve the Mountpoint:
docker volume inspect netbird-mgmt
[
{
"CreatedAt": "2021-07-25T20:45:28Z",
"Driver": "local",
"Labels": {},
"Mountpoint": "/var/lib/docker/volumes/mgmt/_data",
"Name": "netbird-mgmt",
"Options": {},
"Scope": "local"
}
]
Consequent restarts of the container will pick up previously generated certificate so there is no need to trigger certificate generation with the curl command on every restart.
Run without TLS.
# create a volume
docker volume create netbird-mgmt
# run the docker container
docker run -d --name netbird-management \
-p 33073:33073 \
-v netbird-mgmt:/var/lib/netbird \
-v ./config.json:/etc/netbird/config.json \
netbirdio/management:latest
Debug tag
We also publish a docker image with the debug tag which has the log-level set to default, plus it uses the gcr.io/distroless/base:debug image that can be used with docker exec in order to run some commands in the Management container.
shell $ docker run -d --name netbird-management-debug \
-p 33073:33073 \
-v netbird-mgmt:/var/lib/netbird \
-v ./config.json:/etc/netbird/config.json \
netbirdio/management:debug-latest
shell $ docker exec -ti netbird-management-debug /bin/sh
container-shell $
For development purposes:
Install golang gRpc tools:
#!/bin/bash
go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.26
go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.1
Generate gRpc code:
#!/bin/bash
protoc -I proto/ proto/management.proto --go_out=. --go-grpc_out=.