---
source:
  - http://dimafeng.com/2015/10/17/docker-distribution/
constants:
  config_path: ~/.vps/{{ host }}
  docker_compose_file: "{{ config_path }}/docker-compose.yml"
  nginx_conf_file: "{{ config_path }}/data/nginx/app.conf"
tasks:
  - task: loop
    through: << upstreams >>
    as: upstream
    run:
      - task: generate_file
        template: docker/upstream/Dockerfile.{{ upstream.type }}.erb
        target: "{{ config_path }}/{{ upstream.name }}/Dockerfile"
      - description: Building '{{ upstream.name }}' image
        task: execute
        command: docker build --no-cache -f {{ config_path }}/{{ upstream.name }}/Dockerfile -t {{ upstream.name }} {{ upstream.path }}
  - description: Saving docker images as .gzip file
    task: loop
    through: << upstreams >>
    as: upstream
    run:
      - task: execute
        command: docker save {{ upstream.name }} | gzip > /tmp/{{ upstream.name }}.gzip
  - description: Uploading images
    task: loop
    through: << upstreams >>
    as: upstream
    run:
      - task: upload
        file: /tmp/{{ upstream.name }}.gzip
  - description: Stopping current containers
    task: remote_execute
    command: cd {{ release_path }} && docker-compose stop
  - description: Removing current containers
    task: loop
    through: << upstreams >>
    as: upstream
    run:
      - task: remote_execute
        command: docker container rm $(docker container ls -f ancestor={{ upstream.name }} -aq)
  - description: Removing current images
    task: loop
    through: << upstreams >>
    as: upstream
    run:
      - task: remote_execute
        command: docker image rm {{ upstream.name }}
  - task: run_tasks
    tasks: << preload >>
  - description: Unzipping and loading docker images
    task: loop
    through: << upstreams >>
    as: upstream
    run:
      - task: remote_execute
        command: gunzip < /tmp/{{ upstream.name }}.gzip | docker load
  - task: generate_file
    template: docker/docker-compose.yml.erb
    target: "{{ docker_compose_file }}"
  - description: Uploading docker-compose.yml
    task: upload
    file: "{{ docker_compose_file }}"
    remote_path: "{{ release_path }}/docker-compose.yml"
  - task: generate_file
    template: docker/data/nginx/app.conf.erb
    target: "{{ nginx_conf_file }}"
  - description: Uploading Nginx config
    task: upload
    file: "{{ nginx_conf_file }}"
    remote_path: "{{ release_path }}/data/nginx/app.conf"
  - task: loop
    through: << upstreams >>
    as: upstream
    run:
      - task: generate_file
        template: docker/upstream/init-letsencrypt.sh.erb
        target: "{{ config_path }}/{{ upstream.name }}/init-letsencrypt.sh"
      - description: Uploading Let’s Encrypt script
        task: upload
        file: "{{ config_path }}/{{ upstream.name }}/init-letsencrypt.sh"
        remote_path: "{{ release_path }}/init-letsencrypt/{{ upstream.name }}.sh"
      - description: Install SSL certificates (if required)
        task: remote_execute
        command:
          - chmod +x {{ release_path }}/init-letsencrypt/{{ upstream.name }}.sh
          - cd {{ release_path }} && if [ ! -d "data/certbot/conf/live/{{ domain:upstream }}" ]; then yes Y | sudo ./init-letsencrypt/{{ upstream.name }}.sh; fi
  - task: run_tasks
    tasks: << postload >>
  - description: Starting containers
    task: remote_execute
    command: cd {{ release_path }} && docker-compose up {{ up }} -d
  - description: Checking running docker images
    task: remote_execute
    command: docker ps