full-stack.yml

- name: Create OpenStack Cloud Environment
  hosts: localhost
  gather_facts: false

  vars:
    webserver_count: 2
  tasks:
    - name: Download Ubuntu 16.04 Xenial
      get_url:
        url: http://releases.ubuntu.com/16.04/ubuntu-16.04.3-server-amd64.img
        dest: /tmp/ubuntu-16.04.img
    - name: Ensure Ubuntu 16.04 Xenial Image Exists
      os_image:
        name: xenial-image
        container_format: bare
        disk_format: qcow2
        state: present
        filename: /tmp/ubuntu-16.04.img
        verify: false

- name: Create the cookbook network
  os_network:
    state: present
    name: cookbook_network
    external: false
    shared: false
    verify: false
  register: cookbook_network

- name: Create the test subnet
  os_subnet:
    state: present
    network_name: "{{ cookbook_network.id }}"
    name: cookbook_subnet
    ip_version: 4
    cidr: 192.168.0.0/24
    gateway_ip: 192.168.0.1
    enable_dhcp: yes
    dns_nameservers:
      - 192.168.1.20
    verify: false
  register: cookbook_subnet

- name: Create the test router
  os_router:
    state: present
    name: cookbook_router
    network: GATEWAY_NET
    external_fixed_ips:
      - subnet: GATEWAY_SUBNET
    interfaces:
      - cookbook_subnet
    verify: false

- name: Launch instance on OpenStack
  hosts: localhost
  gather_facts: false

- name: Insert routes into router
  command: openstack router set --route destination=192.168.1.0/24,gateway=192.168.100.1 cookbook_router
  register: cookbook_router_route

- name: Create ansible security group
  os_security_group:
    state: present
    name: ansible
    verify: false

- name: Create rule to allow SSH connections
  os_security_group_rule:
    security_group: ansible
    protocol: tcp
    port_range_min: 22
    port_range_max: 22
    remote_ip_prefix: 0.0.0.0/0
    verify: false

- name: Create webserver security group
  os_security_group:
    state: present
    name: webserver
    verify: false

- name: Create rule to allow http connections
  os_security_group_rule:
    security_group: webserver
    protocol: tcp
    port_range_min: 80
    port_range_max: 80
    remote_ip_prefix: 0.0.0.0/0
    verify: false

- name: Deploy Webserver Instances
  os_server:
    state: present
    name: webserver{{ item }}
    image: xenial-image
    key_name: demokey
    timeout: 200
    flavor: m1.tiny
    network: cookbook_network
    security_groups: default,ansible,webserver
    verify: false
  register: nova_webservers

  with_sequence:
    count={{ webserver_count }}

- name: Add webservers to Inventory
  add_host: name="{{ item.server.name }}" groups=webservers 
         ansible_ssh_host="{{ item.server.accessIPv4 }}"
  with_items: "{{ nova_webservers.results }}"

- name: Deploy HAProxy Instance
  os_server:
    state: present
    name: haproxy
    image: xenial-image
    key_name: demokey
    timeout: 200
    flavor: m1.tiny
    network: cookbook_network
    security_groups: default,ansible,webserver
    verify: false
  register: nova_haproxy
  with_sequence:
    count=1

- name: Add HAProxy to Inventory
  add_host: name="{{ item.server.name }}" groups=haproxy 
         ansible_ssh_host="{{ item.server.accessIPv4 }}"
  with_items: "{{ nova_haproxy.results }}"

- name: Wait for port 22 to be ready
  hosts: webservers:haproxy
  gather_facts: False
  tasks:
    - local_action: wait_for port=22 host="{{ ansible_ssh_host }}" search_regex=OpenSSH delay=10

- name: Configure Web Servers
  hosts: webservers
  remote_user: ubuntu
  become: yes
  gather_facts: False

pre_tasks:
    - name: Set APT proxy
      raw: echo "Acquire::http::Proxy \"http://192.168.1.20:3128\";" > /etc/apt/apt.conf
    - name: 'install python2'
      raw: sudo apt-get -y install python-simplejson

tasks:
    - name: Ensure Apache is installed
      apt: name=apache2 state=latest
    - name: Ensure that Apache is started
      service: name=apache2 state=started

- name: Gathering facts about webservers
     hosts: webservers
     remote_user: ubuntu
     become: yes
     tasks:
       - name: Gathering facts
         setup:

- name: Configure HAProxy
         hosts: haproxy
         remote_user: ubuntu
         become: yes
         gather_facts: False
         pre_tasks:
           - name: Set APT proxy
             raw: echo "Acquire::http::Proxy \"http://192.168.1.20:3128\";" > /etc/apt/apt.conf
           - name: 'install python2'
             raw: sudo apt-get -y install python-simplejson

         tasks:
           - name: Update apt cache
             apt: update_cache=yes cache_valid_time=3600
           - name: Install haproxy
             apt: name=haproxy state=present
           - name: Enable init script
             replace: dest='/etc/default/haproxy'
                   regexp='ENABLED=0'
                   replace='ENABLED=1'
           - name: Update HAProxy config
             template: src=templates/haproxy.cfg.j2
                   dest=/etc/haproxy/haproxy.cfg
             notify:
               - restart haproxy
         handlers:
           - name: restart haproxy
             service: name=haproxy state=restarted