How to do a release using jenkins - jenkins

I am looking for a solution to do a jenkins release(not for java application) with gradle.
I want to add details about the release(nexus artifact details..etc) in a properties file and the release a version

Do you use Jenkinsfile?
Just call your gradle file like this (for scripted pipeline)
...
stage('Build') {
timeout(time: 30, unit: 'MINUTES') {
sh "./gradlew build"
}
}
...
Here it is up to which gradle tasks creates your build. Maybe you have a gradle task with named buildRelease or whatever it needs for you. All the rest about version numbering and nexus you should do via gradle. For Nexus e.g. use maven-publish.

Related

What is the equivalent of the command tools in Jenkins scirpted pipeline?

How does Jenkins manage plugins? Do all nodes have a set of plugins installed according to the list specified in the master?
What is the equivalent of declarative pipeline's command tools in scripted pipeline? If there isn't one, how do we use the tools like Maven, NodeJS?
If there isn't one, how do we use the tools like Maven, NodeJS?
According to the node plugin doc at https://plugins.jenkins.io/nodejs/, you could do the following:
nodejs(nodeJSInstallationName: 'Node-name') {
sh 'npm install'
}
Same for the maven plugin:
withMaven(maven: 'Jenkins Maven') {
sh 'mvn install'
}

Is there any way to convert maven project to pipeline in an automated way

Having some maven projects. I want to change it to a scripted pipeline in jenkins
To automate the following example you can use the Jenkins API via the groovy script console or an groovy system script to create you jobs programmatically.
Example for scripted Pipeline:
node{
stage ('Build') {
git url: 'https://github.com/cyrille-leclerc/multi-module-maven-project'
withMaven(
// Maven installation declared in the Jenkins "Global Tool Configuration"
maven: 'M3',
// Maven settings.xml file defined with the Jenkins Config File Provider Plugin
// Maven settings and global settings can also be defined in Jenkins Global Tools Configuration
mavenSettingsConfig: 'my-maven-settings',
mavenLocalRepo: '.repository') {
// Run the maven build
sh "mvn clean install"
} // withMaven will discover the generated Maven artifacts, JUnit Surefire & FailSafe & FindBugs reports...
}
}
You need the Pipeline Maven Plugin: https://wiki.jenkins.io/display/JENKINS/Pipeline+Maven+Plugin

Scripted Jenkins file for maven package

I am writing a Jenkinsfile for Maven package by using scripted syntax
node{
stage('Checkout')
git url:'<gir url>',branch: 'master
stage('build')
sh 'mvn clean package'
}
my problem is how to declare the maven version in above Jenkinsfile (in scripted syntax only)
I just completed a major Jenkins Pipeline/Maven implementation with the Pipeline Maven Integration plugin: https://plugins.jenkins.io/pipeline-maven.
It let's you leverage Maven Tool configuration when you run Maven commands in your pipeline.

Gradle tool in Jenkins Declarative Pipeline

I defined a Jenkins Declarative pipeline to CI/CD my project. I am using gradle as my build tool. However I don't want to use the Gradle Wrapper and check it int the VCS. So I planed on using the jenkins tools functionality as below so that I can update the version number if I need to in future. But it doesn't seem to work.
pipeline {
agent any
tools {
gradle "gradle-4.0"
}
stage("Compile") {
steps {
sh 'gradle project/build.gradle classes'
}
}
I get the error "script.sh: gradle: not found".
I tried to echo PATH and that doesn't contain the path of this autoinstalled gradle tool. Please help.
Looks like there is an issue on the gradle plugin for Jenkins on plugin version 1.26. Please see the link to the bug reported below.
https://issues.jenkins-ci.org/browse/JENKINS-42381

Auto generate build pipeline for gradle build using Jenkinsfile

I am trying to create a build pipeline based upon the Gradle tasks. I have viewed JenkinsFile configuration Pipeline-as-code-demo but I am unable to create a pipeline for gradle tasks. Please suggest me a possible way so that I can use the Jenkinsfile to automatically show the build pipeline just by reading the configurations from the Jenkinsfile.
Thankyou
In case your project uses Gradle Wrapper you can use the following snippet in your Jenkinsfile:
stage('Gradle Build') {
if (isUnix()) {
sh './gradlew clean build'
} else {
bat 'gradlew.bat clean build'
}
}
If you checkout to subdirectory sub-dir you might want to use
stage('Gradle Build') {
if (isUnix()) {
dir('sub-dir') {sh './gradlew clean build'}
} else {
dir('sub-dir') {bat 'gradlew.bat clean build'}
}
}
In case you're using Artifactory to resolve your build dependencies or to deploy your build artifacts, it is recommended to use the Pipeline DSL for Gradle build with Artifactory.
Here's an example taken from the Jenkins Pipeline Examples page:
node {
// Get Artifactory server instance, defined in the Artifactory Plugin administration page.
def server = Artifactory.server "SERVER_ID"
// Create an Artifactory Gradle instance.
def rtGradle = Artifactory.newGradleBuild()
stage 'Clone sources'
git url: 'https://github.com/jfrogdev/project-examples.git'
stage 'Artifactory configuration'
// Tool name from Jenkins configuration
rtGradle.tool = "Gradle-2.4"
// Set Artifactory repositories for dependencies resolution and artifacts deployment.
rtGradle.deployer repo:'ext-release-local', server: server
rtGradle.resolver repo:'remote-repos', server: server
stage 'Gradle build'
def buildInfo = rtGradle.run rootDir: "gradle-examples/4/gradle-example-ci-server/", buildFile: 'build.gradle', tasks: 'clean artifactoryPublish'
stage 'Publish build info'
server.publishBuildInfo buildInfo
}
Otherwise, you can simply run the gradle command with the sh or bat Pipeline steps.
In jenkins you can creates a jenkins pipeline using a script which is written in Jenkinsfile.
We write a script using 'stages' and 'node' as building block, these building blocks allow you to specify instructions that should be executed as part of jenkins pipeline.
To execute gradle build using JenkinsFile first check for Operating system and call appropriate shell that can execute that gradle task, as below:
Jenkinsfile
stage 'build_Project'
node{
if(isUnix()){
sh 'gradle build --info'
}
else{
bat 'gradle build --info'
}
}
Above code snippet create a stage with name build_project and execute gradle build script of the current project.

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