docker-compose v3 data containers for buildkite

buildkite-agent-bin.Dockerfile

FROM alpine:3.7

RUN apk add --no-cache \
      bash \
      curl

RUN mkdir -p /buildkite/bin

RUN curl -L https://github.com/buildkite/agent/releases/download/v3.2.0/buildkite-agent-linux-amd64-3.2.0.tar.gz | \
    tar -xz -C /usr/local/bin ./buildkite-agent && \
    chmod +x /usr/local/bin/buildkite-agent && \
    cp /usr/local/bin/buildkite-agent /buildkite/bin

VOLUME /buildkite

docker-compose.override.yml

version: '3'
services:
  test:
    volumes:
     - buildkite-bin:/buildkite/bin
    depends_on:
      - buildkite-bin
  buildkite-bin:
    build:
      context: .
      dockerfile: buildkite-agent.Dockerfile
    volumes:
     - buildkite-bin:/buildkite/bin
volumes:
  buildkite-bin:

docker-compose.yml

version: '3'
services:
  test:
    image: ubuntu:latest
    entrypoint: /buildkite/bin/buildkite-agent --help