decoding puppet & jenkins via devops
TRANSCRIPT
Slide ‹#›© 2015 BlueCamphor Technologies (P) Ltd. www.skillspeed.com
Decoding Puppet andJenkins via DevOps
© 2015 BlueCamphor Technologies (P) Ltd.
Session Objectives
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This session will help you to:
ᗍ Understand DevOpsᗍ Introduction to Puppet - Puppet Architecture
Introduction to Jenkins - Jenkins Workflowᗍ
ᗍ Applications of DevOps in Business & Performance Automation Continuous Release Environmentᗍ
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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 manage configuration 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 maintain consistency 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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Slide 10
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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.noa
rch.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
© 2015 BlueCamphor Technologies (P) Ltd.
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 systemᗍ Scheduling via a cron-like mechanismᗍ Building when other builds have completed or by requesting a specific build URL
Deploy Manag
e
AssembleModel
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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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Slide 20
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