- !Image
  name: env36
  from: !DockerImage alpine:3.6
  repository: localhost/grpclib/env36
  tasks:
  - run: apk add --no-cache python3
  - run: pip3 install --no-cache-dir {{packages|join(" ")}}
    packages:
    - h2==3.0.1
    - protobuf==3.4.0
    - async-timeout==2.0.0
    - multidict==3.3.0

- !Image
  name: docs
  from: env36
  repository: localhost/grpclib/docs
  tasks:
  - run: apk add --no-cache ca-certificates
  - run: update-ca-certificates
  - run: pip3 install --no-cache-dir {{packages|join(" ")}}
    packages:
    - sphinx==1.6.5
    - sphinx_rtd_theme==0.2.5b1

- !Command
  name: server
  image: env36
  run: python3 -m helloworld.server
  network-name: server
  environ:
    PYTHONPATH: example
  ports:
    - !Expose { port: 50051, as: 50051 }

- !Command
  name: client
  image: env36
  run: python3 -m helloworld.client
  environ:
    PYTHONPATH: example

- !Command
  name: build docs
  image: docs
  run: sphinx-build -b html docs build