Using docker with CircleCI

1.machine_services.yml

machine:
  services:
    - docker

2.post-checkout.yml

checkout:
  post:
    - find . -exec touch -t 201401010000 {} \;
    - IFS=$'\n'; for x in $(git ls-tree --full-tree --name-only -r HEAD); do touch -t $(date -d "$(git log -1 --format=%ci "${x}")" +%y%m%d%H%M.%S) "${x}"; done

3.dependencies.yml

dependencies:
  cache_directories:
    - "~/docker"
  override:
    - mkdir -p ~/docker
    - if [[ -e ~/docker/my_image.tar ]]; then docker load -i ~/docker/my_image.tar; fi
    - docker build -t squirly/my_image:$CIRCLE_SHA1 .
    - docker save squirly/my_image:$CIRCLE_SHA1" > ~/docker/my_image.tar

4.other_dependencies.yml

dependencies:
  cache_directories:
    - "~/docker"
  override:
    - mkdir -p ~/docker
    - if [[ ! -e ~/docker/redis:2.8.tar ]]; then docker pull "redis:2.8" && docker save "redis:2.8" > ~/docker/redis:2.8.tar; else docker load -i ~/docker/redis:2.8.tar; fi
    - if [[ ! -e ~/docker/postgres:9.3.tar ]]; then docker pull "postgres:9.3" && docker save "postgres:9.3" > ~/docker/postgres:9.3.tar; else docker load -i ~/docker/postgres:9.3.tar; fi

5.database_override.yml

database:
  override:
    - docker run -d --name redis redis:2.8;
    - docker run -d --name postgres -e POSTGRES_USER=deploy postgres:9.3
    - sleep 10
    - docker run --link postgres:postgres postgres:9.3 createdb -U user -h postgres MyDB
    - cat schema.sql | docker run --link postgres:postgres -i postgres:9.3 psql -U deploy -h postgres MyDb

6.test_override.yml

test:
  override:
    - docker run -t --link redis:redis --link postgres:postgres -v $CIRCLE_TEST_REPORTS:/reports squirly/my_image:$CIRCLE_SHA1 ./bin/test --format junit --out /reports/tests.xml"

7.deployment.yml

deployment:
  hub:
    branch: /.*/
    commands:
      - docker info
      - echo '{"https://index.docker.io/v1/":{"auth":"'$DOCKER_AUTH'","email":"'$DOCKER_EMAIL'"}}' > ~/.dockercfg
      - docker tag "squirly/my_image:$CIRCLE_SHA1" "squirly/my_image:$CIRCLE_BRANCH"
      - docker push "squirly/my_image:$CIRCLE_SHA1"
      - docker push "squirly/my_image:$CIRCLE_BRANCH"