Create Jenkinsfile-kubernetes

Jenkinsfile-kubernetes

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+pipeline {
+  agent {
+    kubernetes {
+      yaml '''
+apiVersion: v1
+kind: Pod
+spec:
+  containers:
+  - name: maven
+    image: maven:3.8.6-openjdk-8
+    command:
+    - sleep
+    args:
+    - infinity
+  - name: kaniko
+    image: gcr.io/kaniko-project/executor:debug
+    command:
+    - sleep
+    args:
+    - infinity
+    volumeMounts:
+    - name: registry-credentials
+      mountPath: /kaniko/.docker
+  volumes:
+  - name: registry-credentials
+    secret:
+      secretName: regcred
+      items:
+      - key: .dockerconfigjson
+        path: config.json
+'''
+    }
+  }
+  stages {
+    stage('Checkout') {
+      steps {
+        container('maven') {
+          git branch: 'main', url: 'https://github.com/crown2012/source-maven-java-spring-hello-webapp.git'
+        }
+      }
+    }
+    stage('Build') {
+      steps {
+        container('maven') {
+          sh 'mvn clean package -DskipTests=true'
+        }
+      }
+    }
+    stage('Test') {
+      steps {
+        container('maven') {
+          sh 'mvn test'
+        }
+      }
+    }
+    stage('Build & Tag & Push Docker Image') {
+      steps {
+        container('kaniko') {
+          sh 'executor --context=dir://$WORKSPACE --destination=<IMAGE>:$BUILD_NUMBER --destination=<IMAGE>:latest'
+        }
+      }
+    }
+  }
+}