docker.yaml

---
- hosts: all
  remote_user: root
  ###gather_facts: no
  vars:
    # set information about your beaker instance
    beaker_server: "localhost"
    beaker_user: ""
    beaker_pass: ""
    # following options it isn't needed change
    homedir: "/var/www/greentea"
    django_settings: "tttt.settings.production"
    elasticsearch: "elasticsearch.docker"
    greentea_host: "greentea.docker"
    db_host: "postgresql.docker"
    db_pass: "default_pass"
    db_version: 9.5
  environment:
    DJANGO_SETTINGS_MODULE: "{{ django_settings }}"
  tasks:
    - name: "Test Docker service"
      command: "service docker status"

    - name: "Create storages for docker"
      shell: |
        mkdir -p {{ homedir }}/{{ item }}
        chcon -Rt svirt_sandbox_file_t {{ homedir }}/{{ item }}
      with_items:
            - static
            - storage
            - pgsql/data
            - elasticsearch/data/

    - name: "Update docker images"
      command: docker pull {{ item }}
      with_items:
        - pajinek/greentea
        - elasticsearch:2
        - postgres:{{ db_version }}
      tags:
        - install
        - update

    - name: "List of existed versions of elasticsearch"
      shell: docker ps -aq -f "name={{elasticsearch}}" | wc -l
      register: eslist
      tags:
        - install
        - update

    - debug: var=eslist.stdout_lines

    ## Elasticseach instance ###
    # only one instance of elastic search can be created
    - name: "Stop running version of elasticsearch"
      shell: |
            docker stop "{{elasticsearch}}"
            docker rename "{{elasticsearch}}" "{{elasticsearch}}.{{eslist.stdout}}"
      when: eslist.stdout|int > 0
      tags:
        - install

    - name: "Create new Elasticsearch in Docker"
      shell: |
        docker run -d -p 9200:9200 -p 9300:9300 -v "{{ homedir }}/elasticsearch/data/":"/usr/share/elasticsearch/data/:Z" --name "{{elasticsearch}}" -h "{{elasticsearch}}" elasticsearch:2
      tags:
        - install
        - elasticserach

    ## Postgresql 9.5 ###
    - name: "Create Postgresql in Docker"
      shell: |
        docker start "{{ db_host }}" || true
        docker ps | grep "{{ db_host }}" ||
        docker run -d --name "{{ db_host }}" -h "{{ db_host }}" -p 5432:5432 \
            -e POSTGRES_PASSWORD={{ db_pass }} \
            -v /var/lib/postgresql/data:/var/lib/postgresql/data:Z \
            postgres:{{ db_version }}
      tags:
        - install
        - update

    - name: "List of existed versions of Greentea"
      shell: docker ps -aq -f "name={{greentea_host}}" | wc -l
      register: gtlist
      tags:
        - only-greentea

    # only one instance of greentea can be created
    - name: "Switch to newer image of Greentea"
      shell: |
        docker stop "{{greentea_host}}" || true
        docker rename "{{greentea_host}}" "{{greentea_host}}.{{gtlist.stdout}}" || true
      tags:
        - install
        - only-greentea
      when: gtlist.stdout|int > 0

    ## GreenTea instance ###
    - name: "Run Greentea in Docker"
      shell: |
        chown 1000:1000 -R {{homedir}}
        docker run -d --name {{ greentea_host }} -h {{ greentea_host }} \
             --link {{ db_host }}:{{ db_host }} -p 80:8000 \
             --restart=always \
             -e POSTGRES_PASSWORD={{ db_pass }} \
             -e POSTGRES_SERVER={{ db_host }} \
             -e BEAKER_SERVER={{ beaker_server}} \
             -e BEAKER_USER={{ beaker_user}} \
             -e BEAKER_PASS={{ beaker_pass}} \
             -v {{homedir}}/static:/data/greentea/tttt/static:Z \
             -v {{homedir}}/storage:/data/greentea/storage:Z \
                pajinek/greentea
      tags:
        - install
        - update
        - only-greentea

...