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[CD/CI] - Jenkins, Cloud, ....

Monday, December 18, 2023

Jenkins

I. Installation

Download Jenkins: https://www.jenkins.io/download/

Admin page: http://localhost:9090/

II. Config and deploy the application via tomcat

Ref:

https://www.middlewareinventory.com/blog/jenkins-tomcat-deploy-deploying-application-tomcat-using-jenkins/

Step 1: Install Tomcat in your server (CENT OS)

Reference: view here

Step 2: Tomcat Configuration

Open and config user:

"Tomcatmanager" is used to manage apps in Tomcat GUI.

"deployer" is used for deploying your app via Jenkins.

Step 3: Config your GIT or SVN and Maven installed

In Jenkins GUI, Manage Jenkins > Global Tool Configuration

Step 4: Install Deploy to Container Plugin

Manager Jenkins > Manag Plugin > Available > Deploy to Container Plugin

Step 5: Create and Configure a Maven Job with Source Code Management (Git or SVN)

New Item > Maven Project > Source code management

Repository URL: <git_url>

Create and provide Credentials include user name/password.

You should separate many users for git.

Step 6: Configure the Post-build action and Specify the Tomcat server details

Item > Build > Post Steps > Deploy war/ear to container.

Step 6: Build Jenkins Jobs
Item > Build Now > Check Result

II. React Native — Automated build with Jenkins tool

Ref: https://sanjanahumanintech.medium.com/react-native-automated-build-with-jenkins-tool-d900429600a8

My project screenshot:

Config SVN or GIT:

Build steps: Execute command and copy app release to another place

Another one , I leave default setting

III. Config and deploy the application via tomcat (Jenkins + Spring Boot app + Spring MVC + Gradle + Tomcat 10)

1. Config Jobs

General

Git:

Gradle:

Before: Setup Gradle Global: Dashboard > Manage Jenkins > Tools

If Gradle Build in sub folder project, you must config Root Build Script. If so, Jenkins doesn't build.gradle

Deploy to Tomcat 10:

Jenkins tip

1. Build steps

* Execute Windows batch command => for Windows. You must set cmd.exe in shell execute:

Dashboard > Configure System : Set Shell

* Execute shell => for Linux

Problems:

Solution: Use default maven setting instead of your setting

Run Jenkins Agent in Windows:

Step1. Run the command below to download agent.jar:

$ curl -sO http://localhost:8080/jnlpJars/agent.jar

Step 2. Run Agent slave in windows:

//Run default Java

$ java" -jar agent.jar -jnlpUrl http://localhost:8080/computer/Window%20Slave/jenkins-agent.jnlp -secret 234b78f48ecb**********663d38 -workDir "D:\Jenkins\app_release"

// Run Specific Java Version

$"C:\Program Files\Java\jdk-11.0.3\bin\java" -jar agent.jar -jnlpUrl http://localhost:8080/computer/Window%20Slave/jenkins-agent.jnlp -secret 234b78f48********f92383d83407663d38 -workDir "D:\Jenkins\app_release"

You can see the guide and secret key here: