Kubernetes部署 #

apiVersion: apps/v1
kind: Deployment
metadata:
  name: user-service
  labels:
    app: user-service
spec:
  replicas: 3
  selector:
    matchLabels:
      app: user-service
  template:
    metadata:
      labels:
        app: user-service
    spec:
      containers:
      - name: user-service
        image: user-service:1.0.0
        ports:
        - containerPort: 8001
        env:
        - name: NACOS_SERVER_ADDR
          valueFrom:
            configMapKeyRef:
              name: spring-cloud-config
              key: nacos.server-addr
        - name: MYSQL_HOST
          valueFrom:
            configMapKeyRef:
              name: spring-cloud-config
              key: mysql.host
        resources:
          requests:
            memory: "256Mi"
            cpu: "250m"
          limits:
            memory: "512Mi"
            cpu: "500m"
        livenessProbe:
          httpGet:
            path: /actuator/health
            port: 8001
          initialDelaySeconds: 60
          periodSeconds: 10
        readinessProbe:
          httpGet:
            path: /actuator/health
            port: 8001
          initialDelaySeconds: 30
          periodSeconds: 10

apiVersion: v1
kind: Service
metadata:
  name: user-service
spec:
  selector:
    app: user-service
  ports:
  - port: 8001
    targetPort: 8001
  type: ClusterIP

apiVersion: v1
kind: Service
metadata:
  name: gateway
spec:
  selector:
    app: gateway
  ports:
  - port: 8080
    targetPort: 8080
    nodePort: 30080
  type: NodePort

apiVersion: v1
kind: ConfigMap
metadata:
  name: spring-cloud-config
data:
  nacos.server-addr: "nacos:8848"
  mysql.host: "mysql"
  redis.host: "redis"

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: spring-cloud-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: api.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: gateway
            port:
              number: 8080

# 部署应用
kubectl apply -f deployment.yaml

# 查看Pod
kubectl get pods

# 查看服务
kubectl get services

# 查看日志
kubectl logs -f pod/user-service-xxx

# 扩容
kubectl scale deployment user-service --replicas=5