playbook.yml

---
- hosts: all
  become: true

  tasks:
    - name: Install aptitude using apt
      apt: name=aptitude state=latest update_cache=yes force_apt_get=yes

    - name: Install required system packages
      apt: name={{ item }} state=latest update_cache=yes
      with_items:
        - 'curl'
        - 'software-properties-common'
        - 'python-pip'
        - 'python3-pip'
        - 'virtualenv'
        - 'python3-setuptools'

    - name: Add Docker GPG apt Key
      apt_key:
        url: https://download.docker.com/linux/ubuntu/gpg
        state: present

    - name: Add Docker Repository
      apt_repository:
        repo: deb https://download.docker.com/linux/ubuntu xenial stable
        state: present

    - name: Update apt and install docker-ce
      apt: update_cache=yes name=docker-ce state=latest

    - name: Install Docker Module for Python
      pip:
        name: docker

    - name: create directories
      file: path=/usr/{{ item }} state=directory
      with_items:
        - 'nginx'
        - 'web1'
        - 'web2'

    - name: get nginx files
      get_url: url={{ item }} dest=/usr/nginx
      with_items:
        - 'https://gist.githubusercontent.com/yishait/a95aca6d6a84c42e62227e633c5acbc1/raw/b17dd9257f844f5d97aa97d72c0597b742cd0dd0/Dockerfile'
        - 'https://gist.githubusercontent.com/yishait/a95aca6d6a84c42e62227e633c5acbc1/raw/321a903978d49f02d7a2e737e7bf403233f8572d/default.conf'
        - 'https://gist.githubusercontent.com/yishait/a95aca6d6a84c42e62227e633c5acbc1/raw/42d321138ce16233e9e0675f364c3c2da8fbc832/nginx.conf'

    - name: get node 1 files
      get_url: url={{ item }} dest=/usr/web1
      with_items:
        - 'https://gist.githubusercontent.com/yishait/ad351692ea7df6b2908f34a82cd0e538/raw/5fdfcaa2b46546b63d07c0580dd55a6e485eb793/Dockerfile'
        - 'https://gist.githubusercontent.com/yishait/ad351692ea7df6b2908f34a82cd0e538/raw/20674480cfba980f13913443db22dc887db33108/index.html'

    - name: get node 2 files
      get_url: url={{ item }} dest=/usr/web2
      with_items:
        - 'https://gist.githubusercontent.com/yishait/ad351692ea7df6b2908f34a82cd0e538/raw/5fdfcaa2b46546b63d07c0580dd55a6e485eb793/Dockerfile'
        - 'https://gist.githubusercontent.com/yishait/142ec1cc013322a2ddce191668a0f404/raw/b32aa0b8c551e5fe7b6e12871110b90e9354a06b/index.html'

    - name: Create my_docker_network with custom IPAM config
      docker_network:
        name: my_docker_network

    - name: build Nginx from dockerfile
      docker_image:
        name: nginx
        path: /usr/nginx
        state: present

    - name: build node-1 from dockerfile
      docker_image:
        name: httpd1
        path: /usr/web1
        state: present

    - name: build node-2 from dockerfile
      docker_image:
        name: httpd2
        path: /usr/web2
        state: present

##########################################################################
##                        start applications                            ##
##########################################################################

    - name: start node 1 container
      docker_container:
        name: apache_httpd1
        image: httpd1
        state: started
        networks:
          - name: my_docker_network

    - name: start node 2 container
      docker_container:
        name: apache_httpd2
        image: httpd2
        state: started
        networks:
          - name: my_docker_network

    - name: start container with healthcheck
      docker_container:
        name: nginx-lb
        image: nginx:latest
        state: started
        published_ports:
          - 80:80
        networks:
          - name: my_docker_network
        healthcheck:
          test: ["CMD", "curl", "--fail", "http://nginx.host.com"]
          interval: 1m30s
          timeout: 10s
          retries: 3
          start_period: 30s

    - name: Remove logs and reload nginx
      command: docker exec nginx-lb rm -rf /var/log/nginx/*

    - name: Remove logs and reload nginx
      command: "docker exec nginx-lb service nginx reload"