CI/CD with Spring Boot and Jenkins Pipelines

• JaCoCo

  4 3,638 3.8 Java

  :microscope: Java Code Coverage Library

  

  Code coverage analysis tools quantify the amount of tested code, serving as a valuable tool to inform on code structure and testing related decisions. We will make use of JaCoCo, JaCoCo produces reports on multiple kinds of code coverage metrics including instructions, line and branch coverage.

• jib

  13 12,782 8.9 Java

  🏗 Build container images for your Java applications.

  

  In this section, we will setup the automated generation and deployment of a Docker container image. You will need a Docker Hub account and the Jib Gradle Plugin.

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• heroku-gradle-plugin

  1 49 10.0 Java

  A Gradle plugin for deploying JAR and WAR files to Heroku.

  

  We will tackle deployment as a final step, using Heroku platform as a service to host the spring boot application. You will need a Heroku account and the Heroku Gradle plugin.

• initializr

  120 3,119 9.2 Java

  A quickstart generator for Spring projects

  

  A simple Spring Boot application using Gradle build tool can be created using Spring Initializr. You will need the Web dependency to configure your app as a web application. The Actuator dependency will provide a url to check the status of your application. Afterwards, generate, download and extract your application. Using an appropriate IDE, open your project files.

• TDDSampleJenkins

  1 0 10.0 Java

  TDD sample app used to demo CI/CD using Jenkins

  You can find the complete code on GitHub.

• Puts Debuggerer

  1,160 85 2.1 Ruby

  Ruby library for improved puts debugging, automatically displaying bonus useful information such as source line number and source code.

  node { stage("Clone project") { git branch: 'main', url: 'https://github.com//.git' } stage("Build project with test execution") { sh "./gradlew build" } stage("Deploy to DockerHub with Jib and to Heroku") { parallel([ docker: { withCredentials([usernamePassword(credentialsId: 'DOCKER_CRED', usernameVariable: 'DOCKER_USERNAME', passwordVariable: 'DOCKER_PASSWORD')]) { sh ''' echo "${DOCKER_PASSWORD}" | docker login -u "${DOCKER_USERNAME}" --password-stdin ./gradlew jib -Djib.to.auth.username="${DOCKER_USERNAME}" -Djib.to.auth.password="${DOCKER_PASSWORD}" ''' } }, heroku: { withCredentials([string(credentialsId: 'HEROKU_KEY', variable: 'HEROKU_API_KEY')]) { sh './gradlew deployHeroku' } } ]) } jacoco( execPattern: '**/*.exec', sourcePattern: 'src/main/java', exclusionPattern: 'src/test*' ) }

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