Devops-Deployment-lab

This lab to deploy multi servers using Vagrant and Manage them using Ansible

Create Vagrant File

First prepare vagrant file to start the servers : - ansible-control - Database Server (db01) - Two Web Server (web01,web02) - Loadbalancer Server (loadbalancer)

Set Up Ansible-Control Server

- Set up ansible 
    $ sudo apt install ansible 
- creat inventory file named hosts 
    grouped servers to 4 group [control,proxy,webservers,database]
- Set up ssh 
    $ ssh-keygen
    $ ssh-copy-id localhost
    $ ssh-copy-id web01 && ssh-copy-id web02 && ssh-copy-id loadbalancer && ssh-copy-id db01
- Set up python-simplejson module to give ansible full functionalty 
    $ ansible all -i hosts -m command -a 'sudo apt-get -y install python-simplejson'

Set up Services using apt module

- update cache 
    $ ansible all -i hosts --become -m apt -a "update_cache=yes"
- Set up web servers using apache
    $ ansible webservers -i hosts --become -m apt -a "name=apache2 state=present"
- Set up database server using mysql 
    $ ansible database -i hosts --become -m apt -a "name=mysql-server state=present"
- Start services we installed 
    $ ansible database -i hosts --became -m service -a "name=mysql state=started"

Playbook in YML

- Write a basic playbook1.yml to check that the webservers have apache2 latest version 
- Configure the posrt.conf file in apache2 using jenga 
- check the configuration using curl command 

Create roles for multi services

- Create role for apache2
    $ ansible-galaxy init roles/apache2
- Write the playbook2.yml for this role
- Create role for common things for all servers
    $ ansible-galaxy init roles/common
- Create role for nginx service
    $ ansible-galaxy init roles/nginx
- Edit the playbook2.yml for the new roles 
- Edit the files for each role 
* After this configuration we configure the nginx server to balnace the load between the web servers and if we call it it will give the contant of web01 or web02