The Ultimate Ansible and Jenkins Cheat Sheet

In the ever-evolving landscape of DevOps, tools like Ansible and Jenkins have become indispensable for automation, configuration management, and continuous integration. Harnessing the power of these tools can significantly streamline workflows and enhance productivity. To aid both beginners and experienced practitioners, we present "The Ultimate Ansible and Jenkins Cheat Sheet." This comprehensive guide will serve as your go-to reference for essential commands, step-by-step instructions, and additional examples to master these powerful DevOps tools.

1. Getting Started with Ansible:

   • Install Ansible: sudo apt-get install ansible
   • Verify Ansible installation: ansible --version
   • Create an Ansible inventory file: nano inventory.ini

2. Ansible Playbooks:

   • Write your first playbook: nano playbook.yml
   • Run a playbook: ansible-playbook playbook.yml
   • Check syntax: ansible-playbook --syntax-check playbook.yml

3. Jenkins Installation and Setup:

   • Install Jenkins on Ubuntu: sudo apt-get install jenkins
   • Start Jenkins service: sudo service jenkins start
   • Access Jenkins on a web browser: http://localhost:8080

4. Jenkins Jobs and Pipelines:

   • Create a Freestyle project: New Item -> Freestyle project
   • Configure a pipeline: Jenkinsfile example

     pipeline {
         agent any
         stages {
             stage('Build') {
                 steps {
                     echo 'Building...'
                 }
             }
             stage('Test') {
                 steps {
                     echo 'Testing...'
                 }
             }
             stage('Deploy') {
                 steps {
                     echo 'Deploying...'
                 }
             }
         }
     }
     

5. Integration - Ansible and Jenkins:

   • Install Ansible plugin in Jenkins
   • Configure Ansible in Jenkins Global Tool Configuration
   • Add Ansible playbook as a build step in Jenkins job

6. Advanced Ansible and Jenkins Commands:

   • Ansible Vault for secure variable storage: ansible-vault create secret.yml
   • Jenkins Job DSL for job as code: job('Example Job') {...}

7. Troubleshooting Tips:

   • Ansible verbose mode: ansible-playbook -v playbook.yml
   • Jenkins system logs: /var/log/jenkins/jenkins.log

8. Useful Examples:

   • Dynamic inventory with AWS: ansible -i aws_ec2.yaml all -m ping
   • Jenkins pipeline with Git integration: checkout scm

In the fast-paced world of DevOps, efficiency and automation are key. With "The Ultimate Ansible and Jenkins Cheat Sheet," you now have a reliable resource at your fingertips. Whether you're a novice or a seasoned professional, the provided commands, step-by-step instructions, and examples will guide you through various scenarios, helping you harness the full potential of Ansible and Jenkins.