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docker-compose

The below docker-compose configuration can be used to start a Woodpecker server with a single agent.

It relies on a number of environment variables that you must set before running docker-compose up. The variables are described below.

version: '3'

services:
  woodpecker-server:
    image: woodpeckerci/woodpecker-server:latest
    ports:
      - 8000:8000
    volumes:
      - woodpecker-server-data:/var/lib/woodpecker/
    environment:
      - WOODPECKER_OPEN=true
      - WOODPECKER_HOST=${WOODPECKER_HOST}
      - WOODPECKER_GITHUB=true
      - WOODPECKER_GITHUB_CLIENT=${WOODPECKER_GITHUB_CLIENT}
      - WOODPECKER_GITHUB_SECRET=${WOODPECKER_GITHUB_SECRET}
      - WOODPECKER_AGENT_SECRET=${WOODPECKER_AGENT_SECRET}

  woodpecker-agent:
    image: woodpeckerci/woodpecker-agent:latest
    command: agent
    restart: always
    depends_on:
      - woodpecker-server
    volumes:
      - woodpecker-agent-config:/etc/woodpecker
      - /var/run/docker.sock:/var/run/docker.sock
    environment:
      - WOODPECKER_SERVER=woodpecker-server:9000
      - WOODPECKER_AGENT_SECRET=${WOODPECKER_AGENT_SECRET}

volumes:
  woodpecker-server-data:
  woodpecker-agent-config:

Woodpecker needs to know its own address. You must therefore provide the public address of it in <scheme>://<hostname> format. Please omit trailing slashes:

 version: '3'

 services:
   woodpecker-server:
     [...]
     environment:
       - [...]
+      - WOODPECKER_HOST=${WOODPECKER_HOST}

Woodpecker can also have its port's configured. It uses a separate port for gRPC and for HTTP. The agent performs gRPC calls and connects to the gRPC port. They can be configured with *_ADDR variables:

 version: '3'
 services:
   woodpecker-server:
     [...]
     environment:
       - [...]
+      - WOODPECKER_GRPC_ADDR=${WOODPECKER_GRPC_ADDR}
+      - WOODPECKER_SERVER_ADDR=${WOODPECKER_HTTP_ADDR}

Reverse proxying can also be configured for gRPC. If the agents are connecting over the internet, it should also be SSL encrypted. The agent then needs to be configured to be secure:

 version: '3'
 services:
   woodpecker-server:
     [...]
     environment:
       - [...]
+      - WOODPECKER_GRPC_SECURE=true # defaults to false
+      - WOODPECKER_GRPC_VERIFY=true # default

As agents run pipeline steps as docker containers they require access to the host machine's Docker daemon:

 version: '3'

 services:
   [...]
   woodpecker-agent:
     [...]
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock

Agents require the server address for agent-to-server communication. The agent connects to the server's gRPC port:

 version: '3'

 services:
   woodpecker-agent:
     [...]
     environment:
+      - WOODPECKER_SERVER=woodpecker-server:9000

The server and agents use a shared secret to authenticate communication. This should be a random string of your choosing and should be kept private. You can generate such string with openssl rand -hex 32:

 version: '3'

 services:
   woodpecker-server:
     [...]
     environment:
       - [...]
+      - WOODPECKER_AGENT_SECRET=${WOODPECKER_AGENT_SECRET}
   woodpecker-agent:
     [...]
     environment:
       - [...]
+      - WOODPECKER_AGENT_SECRET=${WOODPECKER_AGENT_SECRET}

Docker images

Image variants:

  • The latest image is the latest stable release
  • The vX.X.X images are stable releases
  • The vX.X images are based on the current release branch (e.g. release/v1.0) and can be used to get bugfixes asap
  • The next images are based on the current main branch
# server
docker pull woodpeckerci/woodpecker-server:latest
docker pull woodpeckerci/woodpecker-server:latest-alpine

# agent
docker pull woodpeckerci/woodpecker-agent:latest
docker pull woodpeckerci/woodpecker-agent:latest-alpine

# cli
docker pull woodpeckerci/woodpecker-cli:latest
docker pull woodpeckerci/woodpecker-cli:latest-alpine