mirror of
https://github.com/netbirdio/netbird.git
synced 2024-12-02 21:14:59 +01:00
133 lines
4.3 KiB
Markdown
133 lines
4.3 KiB
Markdown
# netbird Signal Server
|
|
|
|
This is a netbird signal-exchange server and client library to exchange
|
|
connection information between netbird peers
|
|
|
|
## Command Options
|
|
|
|
The CLI accepts the the following options:
|
|
|
|
```shell
|
|
start Netbird Signal Server daemon
|
|
|
|
Usage:
|
|
netbird-signal run [flags]
|
|
|
|
Flags:
|
|
-h, --help help for run
|
|
--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 (e.g. 10000) (default 10000)
|
|
--ssl-dir string server ssl directory location. *Required only for Let's Encrypt certificates. (default "/var/lib/netbird/")
|
|
|
|
Global Flags:
|
|
--log-file string sets Netbird log path. If console is specified the the log will be output to stdout (default "/var/log/netbird/signal.log")
|
|
--log-level string (default "info")
|
|
```
|
|
|
|
## Running the Signal service (Docker)
|
|
|
|
We have packed the Signal server into docker image. You can pull the image from
|
|
Docker Hub and execute it with the
|
|
following commands:
|
|
|
|
````shell
|
|
docker pull netbirdio/signal:latest
|
|
docker run -d --name netbird-signal -p 10000:10000 netbirdio/signal:latest
|
|
````
|
|
|
|
The default log-level is set to INFO, if you need you can change it using by
|
|
updating the docker cmd as followed:
|
|
|
|
````shell
|
|
docker run -d --name netbird-signal -p 10000:10000 netbirdio/signal:latest --log-level DEBUG
|
|
````
|
|
|
|
### Run with TLS (Let's Encrypt).
|
|
|
|
By specifying the **--letsencrypt-domain** the daemon will handle SSL
|
|
certificate request and configuration.
|
|
|
|
In the following example ```10000``` is the signal 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 `<YOUR-DOMAIN>` with your server's public domain (e.g. mydomain.com or
|
|
subdomain sub.mydomain.com).
|
|
|
|
```bash
|
|
# create a volume
|
|
docker volume create wiretrustee-signal
|
|
# run the docker container
|
|
docker run -d --name netbird-signal \
|
|
-p 10000:10000 \
|
|
-p 443:443 \
|
|
-v netbird-signal:/var/lib/netbird \
|
|
netbirdio/signal:latest \
|
|
--letsencrypt-domain <YOUR-DOMAIN>
|
|
```
|
|
|
|
## Metrics
|
|
|
|
The Signal Server exposes the following metrics in Prometheus format:
|
|
|
|
### Application Metrics
|
|
|
|
- **active_peers**: A Gauge metric that tracks the number of active peers
|
|
connected to the server.
|
|
- **peer_connection_duration_seconds**: A Histogram metric that measures the
|
|
duration a peer was connected in seconds.
|
|
- **registrations_total**: A Counter metric that counts the total number of peer
|
|
registrations.
|
|
- **deregistrations_total**: A Counter metric that counts the total number of
|
|
peer deregistrations.
|
|
- **registration_failures_total**: A Counter metric that counts the total number
|
|
of failed peer registrations. Possible
|
|
labels:
|
|
- `error`: The type of error that caused the registration failure (
|
|
e.g., `missing_id`, `missing_meta`, `failed_header`).
|
|
- **registration_delay_milliseconds**: A Histogram metric that measures the time
|
|
it took to register a peer in
|
|
milliseconds.
|
|
- **messages_forwarded_total**: A Counter metric that counts the total number of
|
|
messages forwarded between peers.
|
|
- **message_forward_failures_total**: A Counter metric that counts the total
|
|
number of failed message forwards between
|
|
peers. Possible labels:
|
|
- `type`: The type of failure (
|
|
e.g., `error`, `not_connected`, `not_registered`).
|
|
- **message_forward_latency_milliseconds**: A Histogram metric that measures the
|
|
latency of message forwarding between
|
|
peers in milliseconds.
|
|
|
|
### Endpoint
|
|
|
|
The metrics are exposed in Prometheus format on the `/metrics` endpoint. By
|
|
default, the server listens on port `9090`,
|
|
so the full endpoint would be:
|
|
|
|
> http://<server_ip>:9090/metrics
|
|
|
|
## For development purposes:
|
|
|
|
The project uses gRpc library and defines service in protobuf file located in:
|
|
```proto/signalexchange.proto```
|
|
|
|
To build the project you have to do the following things.
|
|
|
|
Install golang gRpc tools:
|
|
|
|
```bash
|
|
#!/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:
|
|
|
|
```bash
|
|
#!/bin/bash
|
|
protoc -I proto/ proto/signalexchange.proto --go_out=. --go-grpc_out=.
|
|
```
|