Update pom.xml

.gitignore

@@ -1 +1,2 @@
 .idea/*
+target

Dockerfile

@@ -2,7 +2,7 @@ FROM openjdk:8-jre-alpine
 
 EXPOSE 8080
 
-COPY ./target/java-maven-app-1.0-SNAPSHOT.jar /usr/app/
+COPY ./target/java-maven-app-*.jar /usr/app/
 WORKDIR /usr/app
 
-ENTRYPOINT ["java", "-jar", "java-maven-app-1.0-SNAPSHOT.jar"]
+CMD java -jar java-maven-app-*.jar

Jenkinsfile-basic

@@ -0,0 +1,28 @@
+#!/usr/bin/env groovy
+
+pipeline {
+    agent none
+    stages {
+        stage('build') {
+            steps {
+                script {
+                    echo "Building the application..."
+                }
+            }
+        }
+        stage('test') {
+            steps {
+                script {
+                    echo "Testing the application..."
+                }
+            }
+        }
+        stage('deploy') {
+            steps {
+                script {
+                    echo "Deploying the application..."
+                }
+            }
+        }
+    }
+}

Jenkinsfile-kubernetes/Jenkinsfile

@@ -0,0 +1,75 @@
+#!/usr/bin/env groovy
+
+pipeline {
+    agent any
+    tools {
+        maven 'Maven'
+    }
+    environment {
+        DOCKER_REPO_SERVER = '664574038682.dkr.ecr.eu-west-3.amazonaws.com'
+        DOCKER_REPO = "${DOCKER_REPO_SERVER}/java-maven-app"
+    }
+    stages {
+        stage('increment version') {
+            steps {
+                script {
+                    echo 'incrementing app version...'
+                    sh 'mvn build-helper:parse-version versions:set \
+                        -DnewVersion=\\\${parsedVersion.majorVersion}.\\\${parsedVersion.minorVersion}.\\\${parsedVersion.nextIncrementalVersion} \
+                        versions:commit'
+                    def matcher = readFile('pom.xml') =~ '<version>(.+)</version>'
+                    def version = matcher[0][1]
+                    env.IMAGE_NAME = "$version-$BUILD_NUMBER"
+                }
+            }
+        }
+        stage('build app') {
+            steps {
+               script {
+                   echo "building the application..."
+                   sh 'mvn clean package'
+               }
+            }
+        }
+        stage('build image') {
+            steps {
+                script {
+                    echo "building the docker image..."
+                    withCredentials([usernamePassword(credentialsId: 'ecr-credentials', passwordVariable: 'PASS', usernameVariable: 'USER')]) {
+                        sh "docker build -t ${DOCKER_REPO}:${IMAGE_NAME} ."
+                        sh "echo $PASS | docker login -u $USER --password-stdin ${DOCKER_REPO_SERVER}"
+                        sh "docker push ${DOCKER_REPO}:${IMAGE_NAME}"
+                    }
+                }
+            }
+        }
+        stage('deploy') {
+            environment {
+                AWS_ACCESS_KEY_ID = credentials('jenkins_aws_access_key_id')
+                AWS_SECRET_ACCESS_KEY = credentials('jenkins_aws_secret_access_key')
+                APP_NAME = 'java-maven-app'
+            }
+            steps {
+                script {
+                    echo 'deploying docker image...'
+                    sh 'envsubst < kubernetes/deployment.yaml | kubectl apply -f -'
+                    sh 'envsubst < kubernetes/service.yaml | kubectl apply -f -'
+                }
+            }
+        }
+        stage('commit version update') {
+            steps {
+                script {
+                    withCredentials([usernamePassword(credentialsId: 'gitlab-credentials', passwordVariable: 'PASS', usernameVariable: 'USER')]) {
+                        sh 'git config user.email "jenkins@example.com"'
+                        sh 'git config user.name "Jenkins"'
+                        sh "git remote set-url origin https://${USER}:${PASS}@gitlab.com/nanuchi/java-maven-app.git"
+                        sh 'git add .'
+                        sh 'git commit -m "ci: version bump"'
+                        sh 'git push origin HEAD:jenkins-jobs'
+                    }
+                }
+            }
+        }
+    }
+}

Jenkinsfile-simple-pipeline/Jenkinsfile

@@ -0,0 +1,40 @@
+#!/usr/bin/env groovy
+
+def gv
+
+pipeline {
+    agent any
+    tools {
+        maven 'Maven'
+    }
+    stages {
+        stage("init") {
+            steps {
+                script {
+                    gv = load "script.groovy"
+                }
+            }
+        }
+        stage("build jar") {
+            steps {
+                script {
+                    gv.buildJar()
+                }
+            }
+        }
+        stage("build image") {
+            steps {
+                script {
+                    gv.buildImage()
+                }
+            }
+        }
+        stage("deploy") {
+            steps {
+                script {
+                    gv.deployApp()
+                }
+            }
+        }
+    }
+}

Jenkinsfile-simple-pipeline/script.groovy

@@ -0,0 +1,19 @@
+def buildJar() {
+    echo "building the application..."
+    sh 'mvn package'
+} 
+
+def buildImage() {
+    echo "building the docker image..."
+    withCredentials([usernamePassword(credentialsId: 'docker-hub-repo', passwordVariable: 'PASS', usernameVariable: 'USER')]) {
+        sh 'docker build -t nanajanashia/demo-app:jma-2.0 .'
+        sh "echo $PASS | docker login -u $USER --password-stdin"
+        sh 'docker push nanajanashia/demo-app:jma-2.0'
+    }
+} 
+
+def deployApp() {
+    echo 'deploying the application...'
+} 
+
+return this

Jenkinsfile-syntax/Jenkinsfile

@@ -1,3 +1,5 @@
+#!/usr/bin/env groovy
+
 def gv
 
 pipeline {

Jenkinsfile-syntax/script.groovy

@@ -0,0 +1,19 @@
+def buildJar() {
+    echo "building the application..."
+    sh 'mvn package'
+} 
+
+def buildImage() {
+    echo "building the docker image..."
+    withCredentials([usernamePassword(credentialsId: 'docker-hub-repo', passwordVariable: 'PASS', usernameVariable: 'USER')]) {
+        sh 'docker build -t nanajanashia/demo-app:jma-2.0 .'
+        sh "echo $PASS | docker login -u $USER --password-stdin"
+        sh 'docker push nanajanashia/demo-app:jma-2.0'
+    }
+} 
+
+def deployApp() {
+    echo 'deploying the application...'
+} 
+
+return this

Jenkinsfile-version-increment/Jenkinsfile

@@ -0,0 +1,66 @@
+#!/usr/bin/env groovy
+
+pipeline {
+    agent any
+    tools {
+        maven 'Maven'
+    }
+    stages {
+        stage('increment version') {
+            steps {
+                script {
+                    echo 'incrementing app version...'
+                    sh 'mvn build-helper:parse-version versions:set \
+                        -DnewVersion=\\\${parsedVersion.majorVersion}.\\\${parsedVersion.minorVersion}.\\\${parsedVersion.nextIncrementalVersion} \
+                        versions:commit'
+                    def matcher = readFile('pom.xml') =~ '<version>(.+)</version>'
+                    def version = matcher[0][1]
+                    env.IMAGE_NAME = "$version-$BUILD_NUMBER"
+                }
+            }
+        }
+        stage('build app') {
+            steps {
+                script {
+                    echo "building the application..."
+                    sh 'mvn clean package'
+                }
+            }
+        }
+        stage('build image') {
+            steps {
+                script {
+                    echo "building the docker image..."
+                    withCredentials([usernamePassword(credentialsId: 'docker-hub-repo', passwordVariable: 'PASS', usernameVariable: 'USER')]) {
+                        sh "docker build -t nanajanashia/demo-app:${IMAGE_NAME} ."
+                        sh "echo $PASS | docker login -u $USER --password-stdin"
+                        sh "docker push nanajanashia/demo-app:${IMAGE_NAME}"
+                    }
+                }
+            }
+        }
+        stage('deploy') {
+            steps {
+                script {
+                    echo 'deploying docker image to EC2...'
+                }
+            }
+        }
+        stage('commit version update') {
+            steps {
+                script {
+                    withCredentials([usernamePassword(credentialsId: 'gitlab-credentials', passwordVariable: 'PASS', usernameVariable: 'USER')]) {
+                        // git config here for the first time run
+                        sh 'git config --global user.email "jenkins@example.com"'
+                        sh 'git config --global user.name "jenkins"'
+
+                        sh "git remote set-url origin https://${USER}:${PASS}@gitlab.com/nanuchi/java-maven-app.git"
+                        sh 'git add .'
+                        sh 'git commit -m "ci: version bump"'
+                        sh 'git push origin HEAD:jenkins-jobs'
+                    }
+                }
+            }
+        }
+    }
+}

freestyle-build.sh

@@ -1,2 +1 @@
-# npm --version
-# docker --version
+npm --version

kubernetes/deployment.yaml

@@ -0,0 +1,24 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: $APP_NAME
+  labels:
+    app: $APP_NAME
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: $APP_NAME
+  template:
+    metadata:
+      labels:
+        app: $APP_NAME
+    spec:
+      imagePullSecrets:
+        - name: aws-registry-key
+      containers:
+        - name: $APP_NAME
+          image: $DOCKER_REPO:$IMAGE_NAME
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 8080

kubernetes/service.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: $APP_NAME
+spec:
+  selector:
+    app: $APP_NAME
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 8080

pom.xml

@@ -6,7 +6,35 @@
 
     <groupId>com.example</groupId>
     <artifactId>java-maven-app</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>1.1.7</version>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>2.3.5.RELEASE</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>repackage</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <!-- to handle any Java version mismatch, add the following configuration for maven-compiler-plugin -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.6.0</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>            
+        </plugins>
+    </build>
 
     <dependencies>
         <dependency>

script.groovy

@@ -1,14 +0,0 @@
-def buildApp() {
-    echo 'building the application...'
-} 
-
-def testApp() {
-    echo 'testing the application...'
-} 
-
-def deployApp() {
-    echo 'deplying the application...'
-    echo "deploying version ${params.VERSION}"
-} 
-
-return this

target/maven-archiver/pom.properties

@@ -1,5 +1,5 @@
 #Generated by Maven
-#Thu Oct 29 12:55:55 CET 2020
-version=1.0-SNAPSHOT
+#Sat Dec 05 15:54:34 UTC 2020
+version=1.1.7
 groupId=com.example
 artifactId=java-maven-app

target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst

@@ -1 +0,0 @@
-com/example/Application.class

target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

@@ -1 +0,0 @@
-/Users/nanajanashia/Demo-projects/Bootcamp/java-maven-app/src/main/java/com/example/Application.java

target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/createdFiles.lst

@@ -1 +0,0 @@
-AppTest.class

target/surefire-reports/AppTest.txt

@@ -1,4 +1,4 @@
 -------------------------------------------------------------------------------
 Test set: AppTest
 -------------------------------------------------------------------------------
-Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.061 sec
+Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.099 sec

target/surefire-reports/TEST-AppTest.xml

@@ -1,69 +1,64 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<testsuite tests="1" failures="0" name="AppTest" time="0.003" errors="0" skipped="0">
+<testsuite tests="1" failures="0" name="AppTest" time="0.01" errors="0" skipped="0">
   <properties>
-    <property name="java.runtime.name" value="Java(TM) SE Runtime Environment"/>
-    <property name="sun.boot.library.path" value="/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre/lib"/>
-    <property name="java.vm.version" value="25.202-b08"/>
-    <property name="user.country.format" value="AT"/>
-    <property name="gopherProxySet" value="false"/>
+    <property name="java.runtime.name" value="OpenJDK Runtime Environment"/>
+    <property name="sun.boot.library.path" value="/usr/local/openjdk-8/jre/lib/amd64"/>
+    <property name="java.vm.version" value="25.242-b08"/>
     <property name="java.vm.vendor" value="Oracle Corporation"/>
-    <property name="maven.multiModuleProjectDirectory" value="/Users/nanajanashia/Demo-projects/Bootcamp/java-maven-app"/>
+    <property name="maven.multiModuleProjectDirectory" value="/var/jenkins_home/workspace/java-maven-app_jenkins-jobs"/>
     <property name="java.vendor.url" value="http://java.oracle.com/"/>
     <property name="path.separator" value=":"/>
     <property name="guice.disable.misplaced.annotation.check" value="true"/>
-    <property name="java.vm.name" value="Java HotSpot(TM) 64-Bit Server VM"/>
+    <property name="java.vm.name" value="OpenJDK 64-Bit Server VM"/>
     <property name="file.encoding.pkg" value="sun.io"/>
-    <property name="user.country" value="GB"/>
     <property name="sun.java.launcher" value="SUN_STANDARD"/>
     <property name="sun.os.patch.level" value="unknown"/>
     <property name="java.vm.specification.name" value="Java Virtual Machine Specification"/>
-    <property name="user.dir" value="/Users/nanajanashia/Demo-projects/Bootcamp/java-maven-app"/>
-    <property name="java.runtime.version" value="1.8.0_202-b08"/>
-    <property name="java.awt.graphicsenv" value="sun.awt.CGraphicsEnvironment"/>
-    <property name="java.endorsed.dirs" value="/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre/lib/endorsed"/>
-    <property name="os.arch" value="x86_64"/>
-    <property name="java.io.tmpdir" value="/var/folders/y3/bvgmrxg950x0f1z4zt3pby3c0000gn/T/"/>
+    <property name="user.dir" value="/var/jenkins_home/workspace/java-maven-app_jenkins-jobs"/>
+    <property name="java.runtime.version" value="1.8.0_242-b08"/>
+    <property name="java.awt.graphicsenv" value="sun.awt.X11GraphicsEnvironment"/>
+    <property name="java.endorsed.dirs" value="/usr/local/openjdk-8/jre/lib/endorsed"/>
+    <property name="os.arch" value="amd64"/>
+    <property name="java.io.tmpdir" value="/tmp"/>
     <property name="line.separator" value="
 "/>
     <property name="java.vm.specification.vendor" value="Oracle Corporation"/>
-    <property name="os.name" value="Mac OS X"/>
-    <property name="classworlds.conf" value="/usr/local/Cellar/maven/3.6.0/libexec/bin/m2.conf"/>
+    <property name="os.name" value="Linux"/>
+    <property name="classworlds.conf" value="/var/jenkins_home/tools/hudson.tasks.Maven_MavenInstallation/Maven/bin/m2.conf"/>
     <property name="sun.jnu.encoding" value="UTF-8"/>
-    <property name="java.library.path" value="/Users/nanajanashia/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:."/>
-    <property name="maven.conf" value="/usr/local/Cellar/maven/3.6.0/libexec/conf"/>
+    <property name="java.library.path" value="/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib"/>
+    <property name="maven.conf" value="/var/jenkins_home/tools/hudson.tasks.Maven_MavenInstallation/Maven/conf"/>
     <property name="java.specification.name" value="Java Platform API Specification"/>
     <property name="java.class.version" value="52.0"/>
     <property name="sun.management.compiler" value="HotSpot 64-Bit Tiered Compilers"/>
-    <property name="os.version" value="10.14.6"/>
-    <property name="library.jansi.path" value="/usr/local/Cellar/maven/3.6.0/libexec/lib/jansi-native"/>
-    <property name="http.nonProxyHosts" value="local|*.local|169.254/16|*.169.254/16"/>
-    <property name="user.home" value="/Users/nanajanashia"/>
-    <property name="user.timezone" value="Europe/Vienna"/>
-    <property name="java.awt.printerjob" value="sun.lwawt.macosx.CPrinterJob"/>
+    <property name="os.version" value="5.4.0-51-generic"/>
+    <property name="library.jansi.path" value="/var/jenkins_home/tools/hudson.tasks.Maven_MavenInstallation/Maven/lib/jansi-native"/>
+    <property name="user.home" value="/var/jenkins_home"/>
+    <property name="user.timezone" value="Etc/UTC"/>
+    <property name="java.awt.printerjob" value="sun.print.PSPrinterJob"/>
     <property name="java.specification.version" value="1.8"/>
     <property name="file.encoding" value="UTF-8"/>
-    <property name="user.name" value="nanajanashia"/>
-    <property name="java.class.path" value="/usr/local/Cellar/maven/3.6.0/libexec/boot/plexus-classworlds-2.5.2.jar"/>
+    <property name="user.name" value="jenkins"/>
+    <property name="java.class.path" value="/var/jenkins_home/tools/hudson.tasks.Maven_MavenInstallation/Maven/boot/plexus-classworlds-2.6.0.jar"/>
     <property name="java.vm.specification.version" value="1.8"/>
     <property name="sun.arch.data.model" value="64"/>
-    <property name="java.home" value="/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre"/>
-    <property name="sun.java.command" value="org.codehaus.plexus.classworlds.launcher.Launcher test"/>
+    <property name="java.home" value="/usr/local/openjdk-8/jre"/>
+    <property name="sun.java.command" value="org.codehaus.plexus.classworlds.launcher.Launcher clean package"/>
     <property name="java.specification.vendor" value="Oracle Corporation"/>
     <property name="user.language" value="en"/>
-    <property name="awt.toolkit" value="sun.lwawt.macosx.LWCToolkit"/>
+    <property name="awt.toolkit" value="sun.awt.X11.XToolkit"/>
     <property name="java.vm.info" value="mixed mode"/>
-    <property name="java.version" value="1.8.0_202"/>
-    <property name="java.ext.dirs" value="/Users/nanajanashia/Library/Java/Extensions:/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre/lib/ext:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java"/>
-    <property name="sun.boot.class.path" value="/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre/lib/sunrsasign.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home/jre/classes"/>
+    <property name="java.version" value="1.8.0_242"/>
+    <property name="java.ext.dirs" value="/usr/local/openjdk-8/jre/lib/ext:/usr/java/packages/lib/ext"/>
+    <property name="securerandom.source" value="file:/dev/./urandom"/>
+    <property name="sun.boot.class.path" value="/usr/local/openjdk-8/jre/lib/resources.jar:/usr/local/openjdk-8/jre/lib/rt.jar:/usr/local/openjdk-8/jre/lib/sunrsasign.jar:/usr/local/openjdk-8/jre/lib/jsse.jar:/usr/local/openjdk-8/jre/lib/jce.jar:/usr/local/openjdk-8/jre/lib/charsets.jar:/usr/local/openjdk-8/jre/lib/jfr.jar:/usr/local/openjdk-8/jre/classes"/>
     <property name="java.vendor" value="Oracle Corporation"/>
-    <property name="maven.home" value="/usr/local/Cellar/maven/3.6.0/libexec"/>
+    <property name="maven.home" value="/var/jenkins_home/tools/hudson.tasks.Maven_MavenInstallation/Maven"/>
     <property name="file.separator" value="/"/>
     <property name="java.vendor.url.bug" value="http://bugreport.sun.com/bugreport/"/>
     <property name="sun.cpu.endian" value="little"/>
-    <property name="sun.io.unicode.encoding" value="UnicodeBig"/>
-    <property name="socksNonProxyHosts" value="local|*.local|169.254/16|*.169.254/16"/>
-    <property name="ftp.nonProxyHosts" value="local|*.local|169.254/16|*.169.254/16"/>
+    <property name="sun.io.unicode.encoding" value="UnicodeLittle"/>
     <property name="sun.cpu.isalist" value=""/>
   </properties>
-  <testcase classname="AppTest" name="testApp" time="0.003"/>
+  <testcase classname="AppTest" name="testApp" time="0.01"/>
 </testsuite>