timperrett / docker-buildkite-plugin

🐳📦 Run any build step in a Docker container

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Docker Buildkite Plugin Build status

A Buildkite plugin for running pipeline steps in Docker containers.

The Docker container will have the host’s buildkite-agent binary mounted in to /usr/bin/buildkite-agent, and the three required environment variables set for using the artifact upload, download, annotate, etc commands.

If you need more control, please see the docker-compose Buildkite Plugin.

Example

The following pipeline will run yarn install and yarn run test inside a Docker container using the node:7 Docker image:

steps:
  - command: yarn install && yarn run test
    plugins:
      docker#v1.4.0:
        image: "node:7"
        workdir: /app

You can pass in additional environment variables:

steps:
  - command: yarn install && yarn run test
    plugins:
      docker#v1.4.0:
        image: "node:7"
        workdir: /app
        environment:
          - MY_SECRET_KEY
          - MY_SPECIAL_BUT_PUBLIC_VALUE=kittens

You can pass in additional volume mounts. This is useful for docker-in-docker:

steps:
  - command: docker build . -t image:tag
    plugins:
      docker#v1.4.0:
        image: "docker:latest"
        mounts:
          - /var/run/docker.sock:/var/run/docker.sock

You can specify a docker network to join. This will be created if it does not already exist:

steps:
  - command: docker build . -t image:tag
    plugins:
      docker#v1.4.0:
        image: "docker:latest"
        network: "test-network"

Configuration

image (required)

The name of the Docker image to use.

Example: node:7

workdir(optional)

The working directory where the pipeline’s code will be mounted to, and run from, inside the container. The default is /workdir.

Example: /app

always-pull (optional)

Whether to always pull the latest image before running the command. Useful if the image has a latest tag. The default is false, the image will only get pulled if not present.

mount-buildkite-agent (optional)

Whether to automatically mount the buildkite-agent binary from the host agent machine into the container. Defaults to true. Set to false if you want to disable, or if you already have your own binary in the image.

mounts (optional)

Extra volume mounts to pass to the docker container, in an array. Items are specified as SOURCE:TARGET. Each entry corresponds to a Docker CLI --volume parameter.

Example: /var/run/docker.sock:/var/run/docker.sock

environment (optional)

An array of additional environment variables to pass into to the docker container. Items can be specified as either KEY or KEY=value. Each entry corresponds to a Docker CLI --env parameter. Values specified as variable names will be passed through from the outer environment.

Examples: BUILDKITE_MESSAGE, MY_SECRET_KEY, MY_SPECIAL_BUT_PUBLIC_VALUE=kittens

user (optional)

Allows a user to be set, and override the USER entry in the Dockerfile. See https://docs.docker.com/engine/reference/run/#user for more details.

Example: root

additional_groups (optional)

Additional groups to be added to the user in the container, in an array of group names (or ids). See https://docs.docker.com/engine/reference/run/#additional-groups for more details.

Example: docker

network (optional)

Join the container to the docker network specified. The network will be created if it does not already exist. See https://docs.docker.com/engine/reference/run/#network-settings for more details.

Example: test-network

debug (optional)

Outputs the command to be run, and enables xtrace in the plugin

Example: true

runtime (optional)

Specify an explicit docker runtime. See the docker run options documentation for more details.

Example: nvidia

shell (optional)

Set the shell to use for the command. Set it to false to pass the command directly to the docker run command. The default is bash -e -c.

Example: powershell -Command

entrypoint (optional)

Override the image’s default entrypoint, and defaults the shell option to false. See the docker run --entrypoint documentation for more details.

Example: /my/custom/entrypoint.sh

License

MIT (see LICENSE)

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🐳📦 Run any build step in a Docker container

License:MIT License


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