Ansible..!!

What Is Ansible ?

• Ansible Is Configration Management Tool .

• Application Deployment, And Task Automation .

• We Using Ansile Update And Install Software And Change The Files .

Ansible Architecture

• Ansible Is Master And Slave Architecture

• Ansible Connect With Multiple Slave Server And Do The Changes Using SSH

• Ansible Use The SSH Protocol For The Connect With Slave Server

• We Create PlayBook File In Our Master Server And That File Mention Our Changes

• We Also Create Inventory File For Connection With Our Other Salve

• We Mention That Inventory File Our Slave Server Ip

• In Our Master Node All Ready Present on Inventory File PATH:- /etc/hosts

Ansible Installation On Ubuntu

sudo apt update
sudo apt install software-properties-common
sudo add-apt-repository --yes --update ppa:ansible/ansible
sudo apt install ansible
ansible --version

How To Create Our Own Inventory File ?

nano myhost.ini

• Content For Inventory File

[localhost]
127.0.0.1

Create A PlayBook For Install Nginx And Start The Nginx..!!

• Create A Directory For Playbook

mkdir Ansible-Playbook

Create Yaml File For Install Nginx And Start

•   nano nginx-install.yml
  

• Add The Code

- name: Install Nginx Locally
  hosts: localhost
  become: yes  # Run tasks as sudo
  tasks:
# This Task For Install Nginx...!!
    - name: Install Nginx
      apt:
        name: nginx
        state: present
# This For Start Our Nginx Service..!!
    - name: Start and Enable Nginx Service
      systemd:
        name: nginx
        state: started
        enabled: yes

• Run This PlayBook

ansible-playbook nginx-install.yml

• OutPut :-

Create PlayBook For Stop Nginx And Install Apache And Start Apache

nano Apache-Install.yml

• Write Code For Appache

- name: Install Nginx Locally
  hosts: localhost
  become: yes  # Run tasks as sudo
  tasks:
# Here Install Our Apache..!!
    - name: Install Apache2
      apt:
        name: apache2
        state: present
# Here Stop Our Running Nginx..!!
    - name: stop nginx
      service:
        name: nginx
        state: stopped
# Here Start Apache..!!
    - name: Start Apache2
      service:
         name: apache2
         state: started

• Run This playBook Using Our Own Inventory File

ansible-playbook -i myhost.ini Nginx-Install.yml

• Output :-

Create A PlayBook For Lemp Stack

nano lemp-install.yml

• code For Lamp Installation

- name: install LEMP on localhost
  hosts: localhost
  become: true
  connection: local
  tasks:
   - name: stop apache service
     service:
      name: apache2
      state: stopped
   - name: install nginx
     apt:
      name: nginx
      state: present
   - name: start nginx service
     service:
      name: nginx
      state: started
   - name: install php
     apt:
      name: php
      state: present
   - name: install php8.3-fpm
     apt:
      name: php8.3-fpm
      state: present
   - name: start php-fpm service
     service:
      name: php8.3-fpm
      state: started
   - name: install mysql
     apt:
      name: mariadb-server
      state: present
   - name: start mysql service
     service:
      name: mariadb
      state: started
   - name: restart nginx service
     service:
      name: nginx
      state: restarted
   - name: restart php-fpm service
     service:
      name: php8.3-fpm
      state: restarted
   - name: restart mysql service
     service:
      name: mariadb
      state: restarted

• Run The PlayBook List

ansible-playbook -i myhost.ini lemp-install.yml

OutPut :-

Create A Playbook For Lemp Stack Install And Restart Using With_Item..!!

• Create A PlayBook

nano Lemp-With-Item.yml

• Code For This PlayBook

- name: myplay1
  hosts: localhost
  become: true
  connection: local
  tasks:
   - name: install LEMP
     apt:
      name: "{{ item }}"
      state: present
     with_items:
      - nginx
      - php
      - php8.3-fpm
      - mariadb-server
   - name: start all service
     service:
      name: "{{ item }}"
      state: started
     with_items:
      - nginx
      - php8.3-fpm
      - mariadb
   - name: restart all service
     service:
      name: "{{ item }}"
      state: restarted
     with_items:
      - nginx
      - php8.3-fpm
      - mariadb

• Run This PlayBook

ansible-playbook -i myhost.ini Lemp-With-Item.yml

• output :-

Create A One File And Directory And Move This Created File In We Created Directory Using PlayBook

• Create PlayBook

nano File-Dir-Create.yml

• Code For This PlayBook

- name: myplay1
  hosts: localhost
  become: true
  connection: local
  tasks:
     - name: Create A File..!!
       file:
         name: Ansible.txt
         state: touch

     - name: Create A Directory..!!
       file:
         name: AnsibleDir
         state: directory

     - name: Move Created File In Created Directory..!!
       copy:
         src: Ansible.txt   # Here Mention Which File Move..!!
         dest: AnsibleDir/       # Here Mention Where Move Our File..!!

• Run This PlayBook

ansible-playbook -i myhost.ini File-Dir-Create.yml

• OutPut :-