setting up cicd

Jenkinsfile

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+pipeline {
+   agent any
+
+   environment {
+     SERVICE_NAME = "fleetman-position-simulator"
+     ORGANIZATION_NAME = "fleetman-ci-cd-demo"
+     YOUR_DOCKERHUB_USERNAME="virtualpairprogrammers"
+     REPOSITORY_TAG="${YOUR_DOCKERHUB_USERNAME}/${ORGANIZATION_NAME}-${SERVICE_NAME}:${BUILD_ID}"
+   }
+
+   stages {
+      stage('Preparation') {
+         steps {
+            cleanWs()
+            git credentialsId: 'GitHub', url: "https://github.com/${ORGANIZATION_NAME}/${SERVICE_NAME}"
+         }
+      }
+      stage('Build') {
+         steps {
+            sh '''mvn clean package'''
+         }
+      }
+
+      stage('Build and Push Image') {
+         steps {
+           sh 'docker image build -t ${REPOSITORY_TAG} .'
+         }
+      }
+
+      stage('Deploy to Cluster') {
+          steps {
+                    sh 'envsubst < ${WORKSPACE}/deploy.yaml | kubectl apply -f -'
+          }
+      }
+   }
+}

deploy.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: position-simulator
+spec:
+  selector:
+    matchLabels:
+      app: position-simulator
+  replicas: 1
+  template: # template for the pods
+    metadata:
+      labels:
+        app: position-simulator
+    spec:
+      containers:
+      - name: position-simulator
+        image: richardchesterwood/k8s-fleetman-position-simulator:release2
+        env:
+        - name: SPRING_PROFILES_ACTIVE
+          value: production-microservice
+        imagePullPolicy: Never
+---
+# No service for this microservice - it's "headless", it just sends out data and nothing calls it.