Container Service for Kubernetes:Gunakan StatefulSet untuk membuat aplikasi berstatus

Masuk ke Konsol ACK. Di panel navigasi kiri, klik Clusters.

Di halaman Clusters, temukan kluster yang diinginkan lalu klik namanya. Di panel kiri, pilih Workloads > StatefulSets.

Pada langkah Advanced, konfigurasikan pengaturan berikut: kontrol akses, penskalaan, penjadwalan, label, dan anotasi. Di bagian Access Control, buat layanan ClusterIP. Saat mengonfigurasi Layanan tersebut, pilih Headless Service lalu klik OK. Kemudian, klik Create di bagian bawah halaman.

Buat file bernama statefulset.yaml dan salin templat YAML berikut ke dalam file tersebut. Templat YAML mencakup sumber daya berikut:

• Layanan headless bernama nginx. Layanan headless digunakan untuk menyediakan nama domain yang stabil.

• StatefulSet yang memiliki volume hostPath yang dipasang.

• Layanan LoadBalancer yang digunakan untuk mengekspos StatefulSet. Dalam contoh ini, Layanan membantu Anda memverifikasi fitur-fitur StatefulSet.

apiVersion: v1
kind: Service
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  clusterIP: None  # Headless Service
  selector:
    app: nginx
  ports:
  - port: 80
    name: http
---
apiVersion: apps/v1
kind: StatefulSet   # The workload type.
metadata:
  name: nginx-test
  namespace: default  # Change the namespace as needed.
  labels:
    app: nginx
spec:
  serviceName: "nginx" # Specify the name of the headless Service you created.
  replicas: 2  # Specify the number of pods.
  selector:
    matchLabels:
      app: nginx
  template: # The pod configurations.
    metadata:
      labels: # The pod labels.
        app: nginx 
    spec:
      containers:
      - name: nginx  # The name of the container.
        image: anolis-registry.cn-zhangjiakou.cr.aliyuncs.com/openanolis/nginx:1.14.1-8.6  # The version of the NGINX image.
        ports:
        - containerPort: 80  # The port exposed by the container.
          protocol: TCP  # Set the protocol to TCP or UDP.
        volumeMounts:
        - name: node-dir-volume  # The volume name. The value must be the same as the volume name specified in the following volumes section.
          mountPath: /tmp  # The mount path of the volume in the container.
      volumes:
      - name: node-dir-volume
        hostPath:
          path: /local_storage  # The directory on the host that you want to mount as a volume.
          type: DirectoryOrCreate     # If the specified directory does not exist, the system automatically creates the directory.
---
apiVersion: v1
kind: Service
metadata:
  name: nginx-test-svc
  namespace: default  # Change the namespace as needed.
  labels:
    app: nginx
spec:
  selector:
    app: nginx  # The label used to match backend pods.
  ports:
    - port: 80           # The port provided by the Service in the cluster.
      targetPort: 80     # The port on which the application in the container listens (containerPort).
      protocol: TCP      # The protocol. Default value: TCP.
  type: LoadBalancer      # The Service type. Default value: ClusterIP. ClusterIP Services are accessible from within the cluster.