Learning by Doing | Ansible Introduction

Introduction

In this section we will try to understand high level flow of Ansible using shell script

References

Not Required

Assignments

Must Do

• Create a Jenkins pipelines which will take inventory file and Task file as a input and perform tasks mention in Task file

Inventory file Example

webserver1,ubuntu,10.0.0.1
webserver2,ubuntu,10.0.0.2
appserver1,ubuntu,10.0.0.3
appserver2,ubuntu,10.0.0.4
dbserver,ubuntu,10.0.0.5

• Jenkins Pipeline which will take inventory file and Bellow mention Task file as input

NginxTaskfile

webserver1,install,nginx
webserver2,install,nginx
webserver1,copy,/tmp/opstree.com,/etc/nginx/site-available/opstree.conf
webserver2,copy,/tmp/opstree.com,/etc/nginx/site-available/opstree.conf
webserver1,service,nginx,restart
webserver2,service,nginx,restart

• Update Jenkins Pipeline which will take inventory file and Bellow mentions Task file as input

TomcatTaskfile

appserver1,download,https://mirrors.estointernet.in/apache/tomcat/tomcat-8/v8.5.51/bin/apache-tomcat-8.5.51.tar.gz,/tmp/
appserver1,directory,/opt/tomcat/
appserver1,extract,/tmp/apache-tomcat-8.5.51.tar.gz,/opt/tomcat/
appserver1,user,tomcat
appserver1,group,tomcat
appserver1,copy,/tmp/tomcat.service,/etc/systemd/system/tomcat.service
appserver1,service,daemon-reload
appserver1,service,start
appserver1,deploy,sorucepath/*.war,/opt/tomcat/webapps/
appserver1,service,restart
appserver2,download,https://mirrors.estointernet.in/apache/tomcat/tomcat-8/v8.5.51/bin/apache-tomcat-8.5.51.tar.gz,/tmp/
appserver1,directory,/opt/tomcat/
appserver2,extract,apache-tom  cat-8.5.51.tar.gz,/opt/tomcat/
appserver2,user,tomcat
appserver2,group,tomcat
appserver2,copy,/tmp/tomcat.service,/etc/systemd/system/tomcat.service
appserver2,service,daemon-reload
appserver2,service,start
appserver2,deploy,sorucepath/*.war,/opt/tomcat/webapps/
appserver2,service,restart

• Update Jenkins Pipeline which will Take Inventory file and Bellow mentions Tasks file as input

MysqlTaskfile dbserver,install,mysql dbserver,database,employeedb dbserver,user,spring3hibernate

Good To Do

• Create a utility to manage users. It should cover below functionalities:-

  • User creation
  • User deletion
  • User modification

• Update the utility to manage groups. It should cover below functionalities:-

  • Group creation
  • Group deletion
  • Group modification

• Update the utility to manage files. It should cover below functionalities:-

  • File creation, modification, deletion
  • Directory creation, modification, deletion
  • Copy file from one location to another

• Update the utility to manage file templating. It should cover below functionalities:-

  • It should allow user to copy file with dynamic content to remote server

• Update the utility to manage packages. It should cover below functionalities:-

  • Package installation, upgradation, uninstallation
  • Repository update
  • It should support RedHat and Debian family OS.

• Update the utility to manage services. It should cover below functionalities:-

  • Service start, restart, stop
  • Systemd daemon reload

• Update the utility to include multiple executions or functions. For example:-

  • To install nginx and tomcat

  • There should be a different tomcat user to manage tomcat configuration

  • Nginx default HTML page should be

    Hi My name is $name_of_yours

  • After any configuration change nginx service should be restarted

• Update the utility to execute above scripts on remote systems.

  • IP of remote system
  • SSH User for remote system
  • SSH Private key for remote system

• Update the utility to run on mulitple servers parallely.