Files
netbird/management
Zoltan Papp 825389818c [client] Gather fresh system info on every management sync stream connect (#7409)
* 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
2026-09-04 15:07:01 +02:00
..

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=.