JENKINS Beginner Tutorial - Step by Step

Notes:

Jenkins authentication and authorization

Today we will learn:

How to create New Users
How to configure users
How to create new roles
How to assign users to roles
How to Control user access on projects

Step 1 : Create new users

Step 2 : Configure users

Step 3 : Create and manage user roles Roles Strategy Plugin - download - restart jenkins

Step 4 : Manage Jenkins - Configure Global Security - Authorisation - Role Based Strategy

Step 5 : Create Roles and Assign roles to users

Step 6 : Validate authorization and authentication are working properly

Notes:

Step 1 : Goto Manage Jenkins - Configure System

Step 2 : Get a basic understanding of common/basic configurations

Notes:

Today we will learn:

1. How to create a basic JOB in Jenkins
2. Basic job configurations
2. How to run the Job remotely
4. How to chain Job Execution

Step 1 : Jenkins - New Item - add details 

Step 2 : How to trigger the job remotely

Step 3 : How to chain job executions

Notes:

Today we will learn

1. Create a java program and run it through command line
2. Create a Jenkins job to run the java program
3. Add this program/project to Git
4. Jenkins - add git plugin
5. Configure Jenkins job to trigger the execution when a change is pushed to GitHub
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Step 1 : Create a java program

Step 2 : Compile from command line
   javac “name of .java class”
      java “name of class without extension .java”

Step 3 : Create a Jenkins job to run this program

Step 4 : Add the project to Git and GitHub

For Reference:
----------------------
Git and GitHub Beginner Tutorial 1 - Introduction - https://youtu.be/-U-eUHI6euM?list=PLhW3qG5bs-L8OlICbNX9u4MZ3rAt5c5GG

Git and GitHub Beginner Tutorial 2 - Getting started - Install Git (mac) - https://youtu.be/0Icla6TVNNo?list=PLhW3qG5bs-L8OlICbNX9u4MZ3rAt5c5GG

Git and GitHub Beginner Tutorial 3 - Getting started - Install Git windows - https://youtu.be/sBTAkHOxvOk?list=PLhW3qG5bs-L8OlICbNX9u4MZ3rAt5c5GG

Step 5 : Configure Jenkins job to trigger build on Git commit

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Notes:

Today we will learn :
What is Automated Deployment ?

Main stages in
Continuous delivery and deployment pipeline

1. BUILD
2. DEPLOY
3. TEST
4. RELEASE

Lets see ...
A real world Project SetUp

Automated Deployment is the process of Automating the deployment process in a Continuous Delivery system

Build - Deploy - Test - Release

Notes:

Today we will learn :
How to do Automated Deployments with Jenkins ?

Step 1
Start Jenkins

Step 2
Install Plugin
(Deploy Plugin)
https://wiki.jenkins-ci.org/display/JENKINS/Deploy+Plugin

You can also goto your Jenkins on browser and
- Manage Jenkins - Plugins Manager - Click on Available tab and search for deploy to container
Add to Jenkins

Step 3
Create a Build JOB in Jenkins

Step 4
Add Post-build Action Deploy war/ear to container
(add values to the fields) 

sample war file - https://tomcat.apache.org/tomcat-6.0-doc/appdev/sample/

Step 5
In tomcat-users.xml add user for DEPLOYMENT
user username="deployer" password="deployer" roles="manager-script" /

Step 6
Run and Validate

What is Automated Deployment
https://www.youtube.com/watch?v=HkLXbFDlMtU

How to install and setup TOMCAT
https://www.youtube.com/playlist?list=PLhW3qG5bs-L9MQ02hBtHVlfrf0TThsZqB

Notes:

Today we will learn about Jenkins Notifications

Manage Jenkins - Configure System - Email Notifications

To find your smtp server and port details
https://www.arclab.com/en/kb/email/list-of-smtp-and-pop3-servers-mailserver-list.html

..

References:
Notification Plugins

https://wiki.jenkins-ci.org/display/JENKINS/Notification+Plugin

https://wiki.jenkins-ci.org/display/JENKINS/Extreme+Notification+Plugin

https://wiki.jenkins-ci.org/display/JENKINS/Email-ext+plugin

Notes:

Today we will learn:

What is Pipeline in Jenkins ?

Pipeline - is a workflow with group of events or jobs that are chained and integrated with each other in sequence.
Every job in a pipeline has some dependency on one or more other jobs

Let us understand...
in an easy way !
(Watch the representations in the video)

References - 
https://tex.stackexchange.com/questions/196680/how-can-i-draw-this-reservoir-diagram-with-tikz
https://readtiger.com/wkp/en/Pump

Notes:

Today we will learn :

How to setup Delivery Pipeline in Jenkins ?

Follow along step by step

Step 1
Chain required jobs in sequence
Add upstream/downstream jobs

Step 2
Install
Delivery Pipeline Plugin

Step 3
Add 
Delivery Pipeline View
configure the view

Step 4
Run and Validate

Notes:

Today we will learn :

How to setup BUILD PIPELINE in Jenkins ?

Follow along step by step

Step 1
Chain required jobs in sequence
Add upstream/downstream jobs

How to chain jobs? Watch
https://www.youtube.com/watch?v=ndLbn24OwQg

Step 2
Install
Build Pipeline Plugin

Step 3
Add 
Build Pipeline View
configure the view

Step 4
Run and Validate

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Difference between Build and Delivery Pipeline:

At a high level you can say Build pipeline has a smaller scope in terms of the entire process of software dev and delivery whereas delivery pipeline has a much broader scope. Also when we say delivery, build pipeline will be one of its components.
Build Pipeline provides a view of the upstream and downstream jobs setup for the build process (typically)
Whereas Delivery Pipeline gives the visualization of the complete Delivery Process that may include Build, Deploy, Test. In the delivery pipeline view, you can see each of these sections in a separate box.
Just have a look here:
Build Pipeline - https://wiki.jenkins.io/display/JENKINS/Build+Pipeline+Plugin
Delivery Pipeline - https://wiki.jenkins.io/display/JENKINS/Delivery+Pipeline+Plugin

Step 1 : Start Jenkins

Step 2 : Create a new freestyle job

Step 3 : Parametrize job

Step 4 : Run and validate

syntax   
Windows   -  %parametername%
*nux/mac  -   $parametername
                     ${parametername}
                     "${parametername}"

Today we will learn:

1. How to run a job from command line
2. How to run a job from command line with user authentication
    (with username and password)
3. How to show progress/results on command line

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Today we will learn:

1. How to run job with parameters from command line
2. How to show result on command line

Today we will learn

How to add different type of parameters in jenkins job
Run and validate

References:

How to Parameterize Job - https://www.youtube.com/watch?v=hgqBGNPlLlU

Extended Choice Parameter Plugin

https://wiki.jenkins.io/display/JENKINS/Extended+Choice+Parameter+plugin

JENKINS

How to pass Parameters to Downstream job

Parameterized Trigger Plugin

Today we will learn:

How to pass values to parameters from one job to another job

Step 1 : Start Jenkins

Step 2 : Manage Jenkins > Manage Plugins

Step 3 : Create a parametrised job

Step 4 : Create a new upstream job

Step 5 : In Post Build Actions -
Select - Trigger parameterised build on other projects
Pass the parameters

References:

https://wiki.jenkins.io/display/JENKINS/Parameterized+Trigger+Plugin

https://www.youtube.com/playlist?list=PLhW3qG5bs-L8T-0JT464rkIvnUz5q4CQC

JENKINS : Build Monitor View

Today we will learn:

1. What is Build Monitor View plugin

2. How to add in Jenkins

 References:

https://wiki.jenkins.io/display/JENKINS/Build+Monitor+Plugin

Notes:

Why?
Running Jenkins standalone (jetty/winstone) vs Running Jenkins on Tomcat

Pre-requisite
***Tomcat 5 or above***
***java(7 or above) should be available***
(https://www.youtube.com/watch?v=FqpmH8MVO6A&list=PLhW3qG5bs-L_qj1L5hnHvJYeFpQ_g4UuU)

Step 1 : Download Tomcat 

Step 2 : Unzip and place tomcat folder at any location

Step 3 : Copy/Place the jenkins.war file inside tomcat/webapps folder

Step 4 : Goto commandpromt (cmd) - windows  |  terminal - mac
  - goto tomcat/bin directory
  - make all files executable : chmod +x *.sh

In case of windows this command will not work. This step might not be needed if you are on windows. Else you can right click on the file/folder goto security tab and change the permissions.

Can watch -   
TOMCAT - How to install and run on Windows | Change Port | Run app
https://youtu.be/ZIIkrn6LHW0?list=PLhW3qG5bs-L9MQ02hBtHVlfrf0TThsZqB

Step 5 : Start Tomcat : ./startup.sh
  (to shutdown tomcat : ./shutdown.sh)

Step 6 : verify if tomcat started : browser - http://localhost:8080

Step 7 : verify if jenkins is running on tomcat : http://localhost:8080/jenkins

*** To start jenkins (standalone) on a diff port***
java -jar jenkins.war - - httpPort=9090