Ansible Playbook Lab & Excercise – Part 3

Create a playbook where you should install a webserver into 2 OS type(Ubuntu and RHEL) with fact conditioning. and list out a directory which in “/etc” and display such as “This is a directory /file in /etc:-XXXx”
To be used Conditiong, looping, regiter and fact variable.

---
- name: Assignment 2
  hosts: localhost
  vars:
    webserver: httpd

  tasks:
  - name: Install the latest version of webserver
    yum:
      name={{ webserver}}
      state=latest
    when: ansible_os_family == "RedHat"
  - name: Install the latest version of webserver
    apt:
      name={{ webserver}}
      state=latest
    when: ansible_os_family == "Ubuntu"
  - name: Install the latest version of webserver
    apt:
      name={{ webserver}}
      state=latest
    when: ansible_os_family == "Ubuntu"
  - name: Return motd to registered var
    ansible.builtin.command: ls /etc
    register: find_output
  - debug:
      msg: "The list in directory /etc is" {{ find_output.stdout_lines }}

There are 2 environment DEV and QA. Both has their own group_vars. Using it, in Dev and QA environment(RHEL/CENTOS) install apache and Dev should run with 80 port and QA should run with 8080 port. Whereas config file locaton for apache conf is /etc/httpd.conf/conf/httpd.conf and line for port is “Listen 80”. This should be done using template module and zinja2 lib.

#group_vars/dev
port: 80

#group_vars/qa
port: 8080

---
- name: Template module and zinza2 module
  hosts: dev,qa

  tasks:
  - name: Install latest httpd
    yum:
      name: httpd
      state: latest
  - name: Template a file to /etc/file.conf
    ansible.builtin.template:
      src: httpd.conf.j2
      dest: /etc/httpd/conf/httpd.conf
    notify:
      - Start service httpd, if not started
  - name: Start service httpd, if not started
    ansible.builtin.service:
      name=httpd
      state=started

  - debug: 
      msg: Port {{ port }}
  handlers:
  - name: Start service httpd, if not started
    ansible.builtin.service:
      name=httpd
      state=restarted

Write a 3 yaml playbook i.e main.yaml, second.yaml and third.yaml with some demo debug tasks and call second.yaml and third.yaml from main.yaml using include.

# second.yaml
- name: Debug
  debug:
    msg: In second.yaml

# third.yaml
- name: Debug
  debug:
    msg: In third.yaml

#main.yaml
- hosts: all
  tasks:
    - debug:
        msg: task1

- include: second.yaml
- include: third.yaml