K8S之創建deployment關聯NodePort服務

一、K8s編排yaml文件

1.1 如何通過Yaml文件創建deployment自動關聯NodePort服務呢？

a. 命令行方式關聯

參考資料：K8S拉取Django項目創建pod

文章中通過命令行方式關聯，還需要手動修改svc參數

b. yaml文件編排方式

apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: abc
  name: abc
  namespace: abc
spec:
  replicas: 3
  selector:
    matchLabels:
      app: iam
  strategy: {}
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: abc
    spec:
      containers:
      - image: registry.xxx.com/xxx/xxxx:1260cd6
        name: abc
        imagePullPolicy: Always
        resources: {}
        ports:
        - containerPort: 9991
          name: abcsvc
          protocol: TCP
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: abc
  name: abcsvc
  namespace: abc
spec:
  ports:
  - port: 30333
    nodePort: 30333
    protocol: TCP
    targetPort: 9991
  selector:
    app: abc
  type: NodePort

參數說明：

kind: Deployment

• - containerPort：容器內的服務端口
• name: abcsvc   svc服務的名字

# kubectl get svc -n abc
NAME     TYPE       CLUSTER-IP   EXTERNAL-IP   PORT(S)           AGE
abc   NodePort   10.10.7.99   <none>        30333:30333/TCP   9m15s
# 

kind: Service

• - port: 30333          容器暴露的端口(理解可能不對)
• nodePort: 30333     節點服務器上暴露的端口
• targetPort: 9991     目標容器服務的端口

 c. 創建deployment並關聯svc

 # kubectl apply -f abc.deployment.yaml