# Proxy

## Apache

This guide provides a brief overview for installing Woodpecker server behind the Apache2 web-server. This is an example configuration:

```nohighlight
ProxyPreserveHost On

RequestHeader set X-Forwarded-Proto "https"

ProxyPass / http://127.0.0.1:8000/
ProxyPassReverse / http://127.0.0.1:8000/
```

You must have the below Apache modules installed.

```nohighlight
a2enmod proxy
a2enmod proxy_http
```

You must configure Apache to set `X-Forwarded-Proto` when using https.

```diff
ProxyPreserveHost On

+RequestHeader set X-Forwarded-Proto "https"

ProxyPass / http://127.0.0.1:8000/
ProxyPassReverse / http://127.0.0.1:8000/
```

## Nginx

This guide provides a basic overview for installing Woodpecker server behind the Nginx web-server. For more advanced configuration options please consult the official Nginx [documentation](https://www.nginx.com/resources/admin-guide/).

Example configuration:

```nginx
server {
    listen 80;
    server_name woodpecker.example.com;

    location / {
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header Host $http_host;

        proxy_pass http://127.0.0.1:8000;
        proxy_redirect off;
        proxy_http_version 1.1;
        proxy_buffering off;

        chunked_transfer_encoding off;
    }
}
```

You must configure the proxy to set `X-Forwarded` proxy headers:

```diff
server {
    listen 80;
    server_name woodpecker.example.com;

    location / {
+       proxy_set_header X-Forwarded-For $remote_addr;
+       proxy_set_header X-Forwarded-Proto $scheme;

        proxy_pass http://127.0.0.1:8000;
        proxy_redirect off;
        proxy_http_version 1.1;
        proxy_buffering off;

        chunked_transfer_encoding off;
    }
}
```

## Caddy

This guide provides a brief overview for installing Woodpecker server behind the [Caddy web-server](https://caddyserver.com/). This is an example caddyfile proxy configuration:

```caddy
# expose WebUI and API
woodpecker.example.com {
  reverse_proxy woodpecker-server:8000
}

# expose gRPC
woodpeckeragent.example.com {
  reverse_proxy h2c://woodpecker-server:9000
}
```

:::note
Above configuration shows how to create reverse-proxies for web and agent communication. If your agent uses SSL do not forget to enable [WOODPECKER_GRPC_SECURE](./15-agent-config.md#woodpecker_grpc_secure).
:::

## Ngrok

After installing [ngrok](https://ngrok.com/), open a new console and run:

```bash
ngrok http 8000
```

Set `WOODPECKER_HOST` (for example in `docker-compose.yml`) to the ngrok URL (usually xxx.ngrok.io) and start the server.


## Traefik

To install the Woodpecker server behind a [Traefik](https://traefik.io/) load balancer, you must expose both the `http` and the `gRPC` ports. Here is a comprehensive example, considering you are running Traefik with docker swarm and want to do TLS termination and automatic redirection from http to https.

```yml
version: '3.8'

services:
  server:
    image: woodpeckerci/woodpecker-server:latest
    environment:
      - WOODPECKER_OPEN=true
      - WOODPECKER_ADMIN=your_admin_user
      # other settings ...

    networks:
      - dmz # externally defined network, so that traefik can connect to the server
    volumes:
      - woodpecker-server-data:/var/lib/woodpecker/

    deploy:
      labels:
        - traefik.enable=true

        # web server
        - traefik.http.services.woodpecker-service.loadbalancer.server.port=8000

        - traefik.http.routers.woodpecker-secure.rule=Host(`cd.yourdomain.com`)
        - traefik.http.routers.woodpecker-secure.tls=true
        - traefik.http.routers.woodpecker-secure.tls.certresolver=letsencrypt
        - traefik.http.routers.woodpecker-secure.entrypoints=websecure
        - traefik.http.routers.woodpecker-secure.service=woodpecker-service

        - traefik.http.routers.woodpecker.rule=Host(`cd.yourdomain.com`)
        - traefik.http.routers.woodpecker.entrypoints=web
        - traefik.http.routers.woodpecker.service=woodpecker-service

        - traefik.http.middlewares.woodpecker-redirect.redirectscheme.scheme=https
        - traefik.http.middlewares.woodpecker-redirect.redirectscheme.permanent=true
        - traefik.http.routers.woodpecker.middlewares=woodpecker-redirect@docker

        #  gRPC service
        - traefik.http.services.woodpecker-grpc.loadbalancer.server.port=9000
        - traefik.http.services.woodpecker-grpc.loadbalancer.server.scheme=h2c

        - traefik.http.routers.woodpecker-grpc-secure.rule=Host(`woodpecker-grpc.yourdomain.com`)
        - traefik.http.routers.woodpecker-grpc-secure.tls=true
        - traefik.http.routers.woodpecker-grpc-secure.tls.certresolver=letsencrypt
        - traefik.http.routers.woodpecker-grpc-secure.entrypoints=websecure
        - traefik.http.routers.woodpecker-grpc-secure.service=woodpecker-grpc

        - traefik.http.routers.woodpecker-grpc.rule=Host(`woodpecker-grpc.yourdomain.com`)
        - traefik.http.routers.woodpecker-grpc.entrypoints=web
        - traefik.http.routers.woodpecker-grpc.service=woodpecker-grpc

        - traefik.http.middlewares.woodpecker-grpc-redirect.redirectscheme.scheme=https
        - traefik.http.middlewares.woodpecker-grpc-redirect.redirectscheme.permanent=true
        - traefik.http.routers.woodpecker-grpc.middlewares=woodpecker-grpc-redirect@docker


volumes:
  woodpecker-server-data:
    driver: local

networks:
  dmz:
    external: true
```

You should pass `WOODPECKER_GRPC_SECURE=true` and `WOODPECKER_GRPC_VERIFY=true` to your agent when using this configuration.