Docker

Dockerfile

@@ -1,15 +1,11 @@
-# Stage 1: Build the application
-FROM maven:3.8.1-openjdk-17-slim AS build
+FROM maven:3.9.6-eclipse-temurin-17 AS BUILD
 WORKDIR /app
-COPY pom.xml .
-COPY src ./src
-RUN mvn clean package -DskipTests
+COPY . .
+RUN mvn package -DskipTests
 
-FROM build as test 
-CMD mvn clean test 
-
-FROM openjdk:17-jdk-alpine
-WORKDIR /app
-COPY --from=build /app/target/sysfoo-0.0.1-SNAPSHOT.jar ./sysfoo.jar
+FROM eclipse-temurin:22-jre-alpine
+WORKDIR /run
+COPY --from=BUILD /app/target/sysfoo*.jar sysfoo.jar
 EXPOSE 8080
-ENTRYPOINT ["java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "sysfoo.jar"]
+
+CMD java -jar /run/sysfoo.jar

Dockerfile_singlestage

@@ -0,0 +1,12 @@
+FROM maven:3.9.6-eclipse-temurin-17
+
+WORKDIR /build
+
+COPY . .
+
+RUN mvn package -DskipTests && \
+    mv target/sysfoo*.jar /run/sysfoo.jar
+
+EXPOSE 8080
+
+CMD java -jar /run/sysfoo.jar

Dockerfile_tmp

@@ -0,0 +1,15 @@
+# Stage 1: Build the application
+FROM maven:3.8.1-openjdk-17-slim AS build
+WORKDIR /app
+COPY pom.xml .
+COPY src ./src
+RUN mvn clean package -DskipTests
+
+FROM build as test 
+CMD mvn clean test 
+
+FROM openjdk:17-jdk-alpine
+WORKDIR /app
+COPY --from=build /app/target/sysfoo-0.0.1-SNAPSHOT.jar ./sysfoo.jar
+EXPOSE 8080
+ENTRYPOINT ["java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "sysfoo.jar"]

Jenkinsfile

@@ -0,0 +1,80 @@
+pipeline {
+  agent any
+  stages {
+    stage('build') {
+      agent {
+        docker {
+          image 'maven:3.9.6-eclipse-temurin-17'
+        }
+
+      }
+      steps {
+        echo 'compiling sysfoo app...'
+        sh 'mvn compile'
+      }
+    }
+
+    stage('test') {
+      agent {
+        docker {
+          image 'maven:3.9.6-eclipse-temurin-17'
+        }
+
+      }
+      steps {
+        echo 'running unit tests...'
+        sh 'mvn clean test'
+      }
+    }
+
+    stage('package') {
+      parallel {
+        stage('package') {
+          agent {
+            docker {
+              image 'maven:3.9.6-eclipse-temurin-17'
+            }
+
+          }
+          steps {
+            echo 'packaging the app...'
+            sh '''#Truncate the GIT_COMIT to the first 7 characters
+GIT_SHORT_COMMIT=$(echo $GIT_COMMIT | cut -c 1-7)
+
+# Set the version using Maven
+mvn versions:set -DnewVersion="$GIT_SHORT_COMMIT"
+mvn versions:commit'''
+            sh 'mvn package -DskipTests'
+            archiveArtifacts '**/target/*.jar'
+          }
+        }
+
+        stage('Docker B&P') {
+          steps {
+            script {
+              docker.withRegistry('https://index.docker.io/v1/', 'dockerlogin') {
+                def commitHash = env.GIT_COMMIT.take(7)
+                def dockerImage = docker.build("jmpires/sysfoo:${commitHash}", "./")
+                dockerImage.push()
+                dockerImage.push("latest")
+                dockerImage.push("dev")
+              }
+            }
+
+          }
+        }
+
+      }
+    }
+
+  }
+  tools {
+    maven 'Maven 3.9.6'
+  }
+  post {
+    always {
+      echo 'This pipeline is completed..'
+    }
+
+  }
+}

README.md

@@ -1,7 +1,7 @@
 
 # Sysfoo Application
 
-A Devops Learning App 
+A Devops Learning App useful for CI Implementation 
 
 ## About the Application
 

changelog.txt

@@ -0,0 +1,2 @@
+CH01
+CH02

myTrigger.txt

@@ -0,0 +1,2 @@
+first pull trigger
+second try ...