Kubernetes Hello World

Jenkinsfile

/**
 * This pipeline will deploy to Kubernetes
 */

library identifier: 'fabric8-pipeline-library@v2.2.311', retriever: modernSCM(
    github(repoOwner: 'fabric8io', repository: 'fabric8-pipeline-library')
)

podTemplate(label: 'deploy', containers: [
    containerTemplate(name: 'jnlp', image: 'jenkinsci/jnlp-slave:latest'),
    ]) {

    def url = "https://gist.githubusercontent.com/carlossg/e6d847e527ffc65af4a286681fc7c127/raw/b446c13e78633d37a7b21cdf023ad584131b130b"

    stage('deployment') {
        node('deploy') {
            sh "wget ${url}/kubernetes-hello-world-service.yaml"
            sh "wget ${url}/kubernetes-hello-world-v1.yaml"
            kubernetesApply(file: readFile('kubernetes-hello-world-service.yaml'), environment: 'kubernetes-plugin')
            kubernetesApply(file: readFile('kubernetes-hello-world-v1.yaml'), environment: 'kubernetes-plugin')
        }
    }

    stage('upgrade') {
        timeout(time:1, unit:'DAYS') {
            input message:'Approve upgrade?'
        }
        node('deploy') {
            sh "wget ${url}/kubernetes-hello-world-v2.yaml"
            kubernetesApply(file: readFile('kubernetes-hello-world-v2.yaml'), environment: 'kubernetes-plugin')
        }
    }
}

kubernetes-hello-world-service.yaml

---
apiVersion: v1
kind: Service
metadata:
  name: hello-world
spec:
  ports:
    - port: 80
      targetPort: 8080
      protocol: TCP
  selector:
    name: hello-world
  type: LoadBalancer

kubernetes-hello-world-v1.yaml

---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: hello-world
  labels:
    name: hello-world
spec:
  replicas: 10
  template:
    metadata:
      labels:
        name: hello-world
    spec:
      containers:
      - name: hello-world
        image: csanchez/hello-world:1.0
        imagePullPolicy: Always
        ports:
        - containerPort: 8080

kubernetes-hello-world-v2.yaml

---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: hello-world
  labels:
    name: hello-world
spec:
  replicas: 10
  template:
    metadata:
      labels:
        name: hello-world
    spec:
      containers:
      - name: hello-world
        image: csanchez/hello-world:2.0
        imagePullPolicy: Always
        ports:
        - containerPort: 8080