main.yml

---
 
- name: "fetching instance details"
  become: false
  hosts: localhost
  vars:
    region: "ap-south-1"
    asg_name: "asg-rolling"          #name of autoscaling group
  tasks:
 
    - name: "gathering instance details"
      amazon.aws.ec2_instance_info:
        region: "{{ region }}"
        filters:
          "tag:aws:autoscaling:groupName": "{{ asg_name }}"
          "tag:Project": "zomato"
          instance-state-name: [ "running" ]
      register: instance_details
 
    - name: "creating dynamic inventory"
      add_host:
        groups: "asg_instances"
        hostname: "{{ item.public_ip_address }}"
        ansible_ssh_user: "ec2-user"
        ansible_ssh_host: '{{ item.public_ip_address }}'
        ansible_ssh_port: "22"
        ansible_ssh_private_key_file: "aws.pem"
        ansible_ssh_common_args: "-o StrictHostKeyChecking=no"
      loop: "{{ instance_details.instances }}"
 
- name: "Deploying a site from github repo"
  hosts: all
  become: true
  serial: 1
  vars:
    repo_url: https://github.com/sreehariskumar/aws-elb-site.git
    httpd_owner: "apache"
    httpd_group: "apache"
    httpd_port: "80"
    httpd_domain: "shopping.1by2.online"
    health_check_delay: 40
    packages:
      - httpd
      - php
      - git
    clone_dir: "/var/website/"
  tasks:
 
    - name: "installing packages"
      yum: 
        name: "{{ packages }}"
        state: present
 
    - name: "creating conf from template"
      template:
        src: "./httpd.conf.j2"
        dest: "/etc/httpd/conf/httpd.conf"
        owner: "{{ httpd_owner }}"
        group: "{{ httpd_group }}"
      notify:
        - apache-reload
 
    - name: "creating virtualhost from template"
      template: 
        src: "./virtualhost.conf.j2"
        dest: "/etc/httpd/conf.d/{{ httpd_domain }}.conf"
        owner: "{{ httpd_owner }}"
        group: "{{ httpd_group }}"
      notify:
        - apache-reload
 
    - name: "creating document root"
      file:
        path: "/var/www/html/{{ httpd_domain }}"
        state: directory
        owner: "{{ httpd_owner }}"
        group: "{{ httpd_group }}"
 
    - name: "creating cloning directory"
      file:
        path: "{{ clone_dir }}"
        state: directory
 
 
    - name: "cloning from repo"
      git: 
        repo: "{{ repo_url }}"
        dest: "{{ clone_dir }}"
      register: clone_status
      notify:
        - apache-restart
        - up-delay
 
    - name: "stopping instances"
      when: clone_status.changed
      service:
        name: httpd
        state: stopped
      notify:
        - apache-restart
        - up-delay
 
    - name: "connection drain waiting"
      when: clone_status.changed
      wait_for:
        timeout: "{{ health_check_delay }}"
 
    - name: "copying contents to document root"
      when: clone_status.changed
      copy:
        src: "{{ clone_dir }}"
        dest: "/var/www/html/{{ httpd_domain }}"
        remote_src: true
      notify:
        - apache-restart
        - up-delay
 
  handlers:
 
    - name: "apache-restart"
      service:
        name: httpd
        state: restarted
        enabled: true
 
    - name: "apache-reload"
      service:
        name: httpd
        state: reloaded
        enabled: true
 
    - name: "up-delay"
      wait_for:
        timeout: "40"