Update pom.xml

Dockerfile

@@ -1,8 +0,0 @@
-FROM openjdk:8-jre-alpine
-
-EXPOSE 8080
-
-COPY ./target/java-maven-app-*.jar /usr/app/
-WORKDIR /usr/app
-
-CMD java -jar java-maven-app-*.jar

Jenkinsfile

@@ -1,31 +1,38 @@
-#!/usr/bin/env groovy
+def gv
 
 pipeline {
     agent any
     stages {
-        stage('build app') {
+        stage("init") {
             steps {
                 script {
-                   echo "building the application..."
+                    gv = load "script.groovy"
                 }
             }
         }
-        stage('build image') {
+        stage("build jar") {
             steps {
                 script {
-                    echo "building the docker image..."
+                    echo "building jar"
+                    //gv.buildJar()
                 }
             }
         }
-        stage('deploy') {
+        stage("build image") {
             steps {
                 script {
-                   echo 'deploying docker image...'
+                    echo "building image"
-                   withKubeConfig([credentialsId: 'lke-credentials', serverUrl: 'https://79fa9228-1d11-47ec-870b-33106d53122b.eu-central-2.linodelke.net']) {
+                    //gv.buildImage()
-                       sh 'kubectl create deployment nginx-deployment --image=nginx'
                 }
             }
         }
+        stage("deploy") {
+            steps {
+                script {
+                    echo "deploying"
+                    //gv.deployApp()
+                }
+            }
         }
     }   
 }

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.example</groupId>
     <artifactId>java-maven-app</artifactId>
-    <version>1.1.4</version>
+    <version>1.1.0-SNAPSHOT</version>
 
     <build>
         <plugins>
@@ -22,6 +22,17 @@
                     </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>
 

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

src/test/java/AppTest.java

@@ -1,16 +0,0 @@
-import com.example.Application;
-import org.junit.Test;
-import static org.junit.Assert.*;
-
-public class AppTest {
-
-    @Test
-    public void testApp() {
-        Application myApp = new Application();
-
-        String result = myApp.getStatus();
-
-        assertEquals("OK", result);
-    }
-
-}

target/maven-archiver/pom.properties

@@ -1,5 +0,0 @@
-#Generated by Maven
-#Sun Nov 29 08:01:35 UTC 2020
-version=1.1.4
-groupId=com.example
-artifactId=java-maven-app

target/surefire-reports/AppTest.txt

@@ -1,4 +0,0 @@
--------------------------------------------------------------------------------
-Test set: AppTest
--------------------------------------------------------------------------------
-Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.096 sec

target/surefire-reports/TEST-AppTest.xml

@@ -1,64 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" ?>
-<testsuite tests="1" failures="0" name="AppTest" time="0.01" errors="0" skipped="0">
-  <properties>
-    <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="/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="OpenJDK 64-Bit Server VM"/>
-    <property name="file.encoding.pkg" value="sun.io"/>
-    <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="/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="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="/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="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="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="/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.awt.X11.XToolkit"/>
-    <property name="java.vm.info" value="mixed mode"/>
-    <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="/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="UnicodeLittle"/>
-    <property name="sun.cpu.isalist" value=""/>
-  </properties>
-  <testcase classname="AppTest" name="testApp" time="0.01"/>
-</testsuite>