whoami: Robert Harker

Linux Systems Administrator/DevOps Engineer.

• Early Sun Microsystems employee supporting Sun's corporate IT infrastructure .
• 30 years experience building the Internet.
• 10+ years teaching Internet protocols and email infrastructure.
• Last 7 years managing web farms, working with DevOps teams, Yahoo, UGO.

Open Data Evangelist.

• Working as a volunteer on San Mateo County's Open Data portal
• I have a wide range of operational experience:
  Web technology, Internet protocols,
  Data center server operations, DevOps software development process.

Caution: I am a Linux ops guy not a PHP programmer.

Please make an accommodation to my severe allergic reaction to Power Point

Slides prepared using vi and W3C Slidy,
A presentation system/template implemented in 6 file CSS styles sheets and one Java script.

Continuous Integration and Agile Development

Continuous Integration

Using automation to dynamically rebuild and validate code each time a change is made

Automation is key:

• Rebuild/validate[/deploy] happens automatically based on tools

Agile Development

Releasing early and often

• Continuous deployments
• Periodic releases:
• Weekly feature releases
• Daily bug fix releases

People can generally clearly remember changes in the last 2-3 weeks

What is jenkins?

Orchestration tool:

• Build automation

Jenkins is a comprehensive CI framework

• Browser based
• Users/security
• Projects
• Branches
• Jobs
• Drill-down build artifact exploration
• Artifact/log management

Jobs and Builds

Defines job:

• Environment
• Condition to trigger job
• Steps to complete job, build script:
• Build/validate/deploy commands

Automatically build job:

• Automatic trigger
• Build result: pass/warning/fail
• Build artifacts:
• Output from build/validate/deploy commands

Installing Jenkins

Linux:

Follow instructions on:

• https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins

Hints:

• Add yourself to group jenkins
• Configure to auto start
• Open firewall port

Windows:
Mac:

Left as an exercise to the user

Start Jenkins Java process

• service jenkins start; service jenkins status
• systemctl start jenkins; systemctl status jenkins

• service jenkins start; service jenkins status
• systemctl start jenkins; systemctl status jenkins

Jenkins Overview

Dashboard:

• New Item
• People
• Build History
• Manage Jenkins
• Credentials
• My Views

Manage Jenkins

• Configure System
• Configure Global Security
• Reload Configuration from Disk
• Manage Plugins
• System Information
• System Log
• Load Statistics
• Jenkins CLI
• Script Console
• Manage Nodes
• Manage Credentials
• About Jenkins
• Manage Old Data
• Manage Users
• In-process Script Approval
• Prepare for Shutdown

Secure Jenkins

Caution: once you have started jenkins for the first time you are in a security window

First step is to secure jenkins

• Connect to jenkins:
• http://localhost:8080
• From the main dashboard:
• Manage Jenkins -> Configure Global Security
• Choose:
• Access Control -> Jenkins’ own user database
• Enable:
• Allow users to sign up
• Save

• Anyone can create an account and make any changes

Create your own account

In the upper right corner you should see:

• Sign up link

Select and create your own account Login with this new account Disable "Allow users to sign up":

• Manage Jenkins -> Configure Global Security

Disable:

• Allow users to sign up

Save You have closed security window New users can be added with:

• Manage Jenkins -> Manage Users -> Create User (left column)

Manage Plugins

Install GitHub plugin

GitHub plugin installs:

• GitHub API Plugin
• GIT client plugin
• GIT plugin
• Plain Credentials

Notice jenkins shows status of installation

Add Credentials

Manage Credentials

SSH Username with private key

Add your jenkins private key

Add Job

• New Item
• Item name
• Freestyle project

Job configuration

• Project name: Jenkins-Demo-Build
• GitHub project: git@github.com:/rlh100/jenkins-demo.git/
• Source Code Management:
• Git
• Repository URL: git@github.com:/rlh100/jenkins-demo.git
• Credentials: jenkins

• Build
• Execute shell
• Command

./build.sh
./package.sh

Jenkins Job 2

Jenkins Job 3

Jenkins Job 4

Discussion:

Questions?

Thank You

Thank Yous:

view source

Robert Harker
<harker@harker.com>