This DevOps Tutorial will unravel the complete Introduction to Puppet & Jenkins, Puppet Architecture, Jenkins Work-Flow, Applications of Puppet & Jenkins in Business, Performance Automation & Continuous Release Environments. Additionally, the fundamental concepts of DevOps are extensively covered. At the end, you'll have a strong knowledge regarding Puppet & Jenkins in DevOps. PPT Agenda ✓ Introduction to DevOps ✓ Basics of Puppet & Puppet Architecture ✓ What is Jenkins? What are Jenkins Work-Flows? ✓ DevOps Optimization Cycle ✓ Continuous Integration & Delivery ✓ Technical & Business Payoffs of DevOps ---------- What is DevOps? DevOps is an extension of the lean and agile principles, which streamlines and assists rapid deployments. It is meant to denote the "bridge" or close collaboration between the Development cycle and the Operations cycle. What is Puppet? Puppet is a configuration management system which allows users to define the state of an IT infrastructure, then automatically enforces the correct state. What is Jenkins? Jenkins is a continuous integration utility written in Java that is widely used for testing code to make sure no bugs are introduced. It is a server-based system running in a servlet container such as Apache Tomcat. ---------- DevOps has the following 4 stages: 1. Application 2. Platform 3. Operating System 4. Infrastructure ---------- Applications of DevOps: 1. Continuous Software Delivery 2. Reducing Deployment Failures & Rollbacks 3. Stable Operating Environments 4. Reduced Recovery Time On Failure 5. Faster Resolution of Problems ---------- Skillspeed is a live e-learning company focusing on high-technology courses. We provide live instructor led training in BIG Data & Hadoop featuring Real-time Projects, 24/7 Lifetime Support & 100% Placement Assistance. Email: sales@skillspeed.com Website: https://www.skillspeed.com

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Decoding Puppet and
Jenkins via DevOps

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Session Objectives
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This session will help you to:
ᗍ Understand DevOps
ᗍ Introduction to Puppet - Puppet Architecture
ᗍ Introduction to Jenkins - Jenkins Workflow
ᗍ Applications of DevOps in Business & Performance Automation
ᗍ Continuous Release Environment

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Configuration Management – Use Case
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Problem Statement:
ᗍ In a large organization with thousands of servers, how will you deploy packages to all the servers or manageconfiguration across all
the nodes?
ᗍ A user makes some changes in files, how will you track what has been changed, which broke the service
ᗍ How to maintainconsistency across all nodes?

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Solution
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Puppet (Deployed for large Enterprises) is one of the DevOps tools which helps to manage configuration

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What is DevOps?
A drive to encourage a different, positive and innovative way of thinking to address a common set of issues affecting
the experience of living in, working with and using IT in the world we live in today.
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DevOps As A Bridge
DevOps is the bridge between the development
and operations excellence
It is an extension of the lean and Agile principles,
which streamlines and helps rapid deployments
Development
Operations
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DevOps
"DevOps" is meant to denote a close
collaboration and cross-pollination between what
were previously purely development roles, purely
operations roles and purely QA roles
Application
Platform
Operating System
Infrastructure

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DevOps Optimization Cycle
DevOps
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Faster Time
to Market
Increased
ROI
Stable
System
Continuous
Delivery
Reduced
Complexity

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Introduction to Puppet
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ᗍ Puppet allows the sysadmin to administrate infrastructure through code
ᗍ Puppet is an open source configuration management tool developed by Puppet Labs

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Puppet Architecture
Puppet is based on Client-Server model with a centralized server and agents running on each node as clients
Client
puppetd
Client
puppetd
Client
puppetd
Puppet Master
Network
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Puppet Installation
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ᗍ Enable repository, so as to install packages
• rpm -ivh http://yum.puppetlabs.com/puppetlabs-release-el-7.noarch.rpm
Puppet, System performance and Security aspects
ᗍ Install Puppet
• # yum install puppet-server
ᗍ Upgrade to the latest release
• # puppet resource package puppet-server ensure=latest
ᗍ Start the master server
• # /etc/init.d/puppetmaster restart

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What is Jenkins?
Jenkins is an continuous integration (CI) server, which is used widely for automation of build and deployments
Builds can be started by:
ᗍ Commit in a version control system
ᗍ Scheduling via a cron-like mechanism
ᗍ Building when other builds have completed or by requesting a specific build URL
Deploy
Manage
Assemble
Model
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Jenkins Work Flow
Build, test and integrate as quickly as possible
Develop
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Test
Design Deploy

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Jenkins Setup Demonstration
Lets look at how to setup and configure Jenkins
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Jenkins Installation
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ᗍ Download
• wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat/jenkins.repo
• rpm --import http://pkg.jenkins-ci.org/redhat/jenkins-ci.org.key
ᗍ Install Jenkins
• $ yum install Jenkins
ᗍ Add Jenkins to system boot
• $ chkconfig jenkins on
ᗍ Start Jenkins
• $ service jenkins start

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Big Deal about DevOps
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The biggest business benefit of switching to DevOps is the increase in customer satisfaction

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Benefits of DevOps for IT and Business
Companies that incorporate DevOps practices get more done, plain and simple
ᗍ Technical benefits:
• Continuous software delivery
• Less complex problems to fix
• Faster resolution of problems
• Reduced Deployment Failures and Rollbacks
• Reduced Time to recover upon Failure
• Increased Effectiveness
ᗍ Business benefits:
• Faster delivery of features
• More stable operating environments
• More time available to add value (rather than fix/maintain)
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Job Trends – DevOps
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from Industry
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Sessions
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Corporate Partners
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