This article explains how to install the Docker runner on Linux. The Docker runner is packaged as a minimal Docker image distributed on DockerHub, and is available for the following architectures:

• amd64
• arm
• arm64

Download

Install Docker and pull the public image:

$ docker pull drone/drone-runner-docker:1

Configuration

The Docker runner is configured using environment variables. This article references the below configuration options. See Configuration for a complete list of configuration options.

• DRONE_RPC_HOST

  provides the hostname (and optional port) of your Drone server. The runner connects to the server at the host address to receive pipelines for execution.

• DRONE_RPC_PROTO

  provides the protocol used to connect to your Drone server. The value must be either http or https.

• DRONE_RPC_SECRET

  provides the shared secret used to authenticate with your Drone server. This must match the secret defined in your Drone server configuration.

Installation

The below command creates a container and starts the Docker runner. Remember to replace the environment variables below with your Drone server details.

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docker run --detach \
  --volume=/var/run/docker.sock:/var/run/docker.sock \
  --env=DRONE_RPC_PROTO=https \
  --env=DRONE_RPC_HOST=drone.company.com \
  --env=DRONE_RPC_SECRET=super-duper-secret \
  --env=DRONE_RUNNER_CAPACITY=2 \
  --env=DRONE_RUNNER_NAME=my-first-runner \
  --publish=3000:3000 \
  --restart=always \
  --name=runner \
  drone/drone-runner-docker:1

Verification

Use the docker logs command to view the logs and verify the runner successfully established a connection with the Drone server.

$ docker logs runner

INFO[0000] starting the server
INFO[0000] successfully pinged the remote server