Deploy JBoss Wildfly Java EE app with Maven using Jenkins pipeline and Docker

 HOWTO

• https://www.jenkins.io/doc/tutorials/build-a-java-app-with-maven/
• http://www.mastertheboss.com/soa-cloud/docker/deploying-applications-on-your-docker-wildfly-image 
• https://www.eclipse.org/community/eclipse_newsletter/2020/november/3.php 
• https://www.jenkins.io/doc/book/pipeline/docker/ 
• https://www.jenkins.io/blog/2017/02/07/declarative-maven-project/ 
• https://medium.com/faun/docker-build-push-with-declarative-pipeline-in-jenkins-2f12c2e43807 
• https://github.com/wildfly/quickstart/tree/master/helloworld
  

GitHub projects

•  https://github.com/dveselka/java-ee-8/tree/main/java-ee8-minimal

Pipeline file https://github.com/dveselka/java-ee-8/blob/main/java-ee8-minimal/Jenkinsfile

Add jenkins user into docker group

sudo usermod -aG docker jenkins
sudo systemctl restart jenkins

Checkout app from GitHub

        stage('Checkout') {
          git url: 'https://github.com/dveselka/java-ee-8/', credentialsId: 'dave-devops', branch: 'main'
        }

Build application using Maven

        stage('Build') {

          dir('java-ee8-minimal'){
             withMaven(maven:'Maven'
             ) {
                sh 'pwd'
                sh 'env'
                sh 'mvn clean package'

                def pom = readMavenPom file:'pom.xml'
                print pom.version
                env.version = pom.version
             }
          }
        }

Build Docker image

        stage("BuildDockerImage"){
          dir('java-ee8-minimal'){
            def customImage = docker.build("my-image:${env.BUILD_ID}")
          }
        }

[Pipeline] { (Image)
[Pipeline] dir
Running in /var/lib/jenkins/workspace/java-ee-8/java-ee8-minimal
[Pipeline] {
[Pipeline] isUnix
[Pipeline] sh
+ docker build -t com.dave/java-ee8-minimal:4 .
Sending build context to Docker daemon  46.59kB

Step 1/4 : FROM jboss/wildfly
 ---> 8d9094a2468d
Step 2/4 : RUN /opt/jboss/wildfly/bin/add-user.sh admin Admin#123 --silent
 ---> Using cache
 ---> 8b8272a09327
Step 3/4 : COPY ./target/java-ee8-minimal.war /opt/jboss/wildfly/standalone/deployments/
 ---> 229ba08da529
Step 4/4 : CMD ["/opt/jboss/wildfly/bin/standalone.sh", "-b", "0.0.0.0", "-bmanagement", "0.0.0.0"]
 ---> Running in fdea8bab71ee
Removing intermediate container fdea8bab71ee
 ---> c165d87af41e
Successfully built c165d87af41e
Successfully tagged com.dave/java-ee8-minimal:4

Push Docker image to repository (optional)

Run container

        stage ('Run') {
          dir('java-ee8-minimal'){
            docker.image("com.dave/java-ee8-minimal:${env.BUILD_ID}").run('-it --name java-ee8-minimal com.dave/java-ee8-minimal')
          }
        }

Install Jenkins Docker plugin to remove this error

groovy.lang.MissingPropertyException: No such property: docker for class: groovy.lang.Binding
    at groovy.lang.Binding.getVariable(Binding.java:63)
    at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onGetProperty(SandboxInterceptor.java:270)

 
Jenkins log - run Docker container

[Pipeline] { (Run)
[Pipeline] dir
Running in /var/lib/jenkins/workspace/java-ee-8/java-ee8-minimal
[Pipeline] {
[Pipeline] isUnix
[Pipeline] sh
+ docker run -d -it --name java-ee8-minimal com.dave/java-ee8-minimal:6
[Pipeline] }
[Pipeline] // dir
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
Finished: SUCCESS

docker ps -a
CONTAINER ID        IMAGE                         COMMAND                  CREATED             STATUS              PORTS               NAMES
0eb3d2588c6b        com.dave/java-ee8-minimal:6   "/opt/jboss/wildfly/…"   2 minutes ago       Up 2 minutes        8080/tcp            java-ee8-minimal