k8s1.18.6部署nacos

前提：集群已配置storageclass

# kubectl   get sc

一、准备配置文件

1、准备文件nacos-cm.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: dev-nacos-cm
  namespace: dev-bxm
data:
  mysql.host: "172.16.43.164"
  mysql.db.name: "k8s_nacos"
  mysql.port: "3306"
  mysql.user: "root"
  mysql.password: "123"

2、准备文件nacos-statefulet.yaml

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: dev-nacos
  namespace: dev-bxm
spec:
  serviceName: dev-nacos
  # 单机模式设置成1，集群模式设置成3
  replicas: 1
  template:
    metadata:
      labels:
        app: dev-nacos
      annotations:
        pod.alpha.kubernetes.io/initialized: "true"
    spec:
#      affinity:
#        podAntiAffinity:
#          requiredDuringSchedulingIgnoredDuringExecution:
#            - labelSelector:
#                matchExpressions:
#                  - key: "app"
#                    operator: In
#                    values:
#                      - nacos
#              topologyKey: "kubernetes.io/hostname"
#      serviceAccountName: nfs-client-provisioner
      initContainers:
        - name: peer-finder-plugin-install
          image: 172.16.43.156/app/nacos/nacos-peer-finder-plugin:1.1
          imagePullPolicy: Always
          volumeMounts:
            - mountPath: /home/nacos/plugins/peer-finder
              name: data
              subPath: peer-finder
      containers:
        - name: dev-nacos
          imagePullPolicy: Always
          image: 172.16.43.156/app/nacos/nacos-server:1.4.2
          resources:
            requests:
              memory: "3G"
              cpu: "500m"
          ports:
            - containerPort: 8848
              name: client
            - containerPort: 9848
              name: client-rpc
            - containerPort: 9849
              name: raft-rpc
            - containerPort: 7848
              name: old-raft-rpc
          env:
            - name: NACOS_REPLICAS
              # 单机模式设置成1，集群模式设置成3
              value: "1"
            - name: SERVICE_NAME
              value: "dev-nacos"
            - name: DOMAIN_NAME
              value: "cluster.local"
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  apiVersion: v1
                  fieldPath: metadata.namespace
            - name: MYSQL_SERVICE_HOST # 添加 mysql 访问地址的环境变量
              valueFrom:
                configMapKeyRef:
                  name: dev-nacos-cm
                  key: mysql.host
            - name: MYSQL_SERVICE_DB_NAME
              valueFrom:
                configMapKeyRef:
                  name: dev-nacos-cm
                  key: mysql.db.name
            - name: MYSQL_SERVICE_PORT
              valueFrom:
                configMapKeyRef:
                  name: dev-nacos-cm
                  key: mysql.port
            - name: MYSQL_SERVICE_USER
              valueFrom:
                configMapKeyRef:
                  name: dev-nacos-cm
                  key: mysql.user
            - name: MYSQL_SERVICE_PASSWORD
              valueFrom:
                configMapKeyRef:
                  name: dev-nacos-cm
                  key: mysql.password
            - name: NACOS_SERVER_PORT
              value: "8848"
            - name: NACOS_APPLICATION_PORT
              value: "8848"
            - name: PREFER_HOST_MODE
              value: "hostname"
            - name: NACOS_SERVERS
              # 单机模式设置成nacos-0.xxxx,集群模式要添加：nacos-1.xxxx和nacos-2.xxxxx
              value: "dev-nacos-0.dev-nacos.dev-bxm.svc.cluster.local:8848"
#              value: "nacos-0.nacos-headless.uat-bxm.svc.cluster.local:8848 nacos-1.nacos-headless.uat-bxm.svc.cluster.local:8848 nacos-2.nacos-headless.uat-bxm.svc.cluster.local:8848"
            - name: MODE
              # 单机部署，value: "standalone" 
              # 集群部署，value: "cluster"    
              value: "standalone"            
          volumeMounts:
            - name: data
              mountPath: /home/nacos/plugins/peer-finder
              subPath: peer-finder
            - name: data
              mountPath: /home/nacos/data
              subPath: data
            - name: data
              mountPath: /home/nacos/logs
              subPath: logs
  volumeClaimTemplates:
    - metadata:
        name: data
        annotations:
          volume.beta.kubernetes.io/storage-class: "managed-nfs-storage"
      spec:
        accessModes: [ "ReadWriteMany" ]
        resources:
          requests:
            storage: 10Gi
  selector:
    matchLabels:
      app: dev-nacos

3、准备文件nacos-service.yaml

apiVersion: v1
kind: Service
metadata:
  name: dev-nacos
  namespace: dev-bxm
  labels:
    app: dev-nacos
spec:
  type: ClusterIP
  # headless service
  clusterIP: None
  ports:
    - port: 8848
      name: server
      targetPort: 8848
    - port: 9848
      name: client-rpc
      targetPort: 9848
    - port: 9849
      name: raft-rpc
      targetPort: 9849
    ## 兼容1.4.x版本的选举端口
    - port: 7848
      name: old-raft-rpc
      targetPort: 7848
  selector:
    app: dev-nacos

4、准备文件nacos-ingress.yaml

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: dev-nacos
  namespace: dev-bxm
#  annotations:
#    kubernetes.io/ingress.class: nginx
#    # 添加cert-manager.io/cluster-issuer注解
#    cert-manager.io/cluster-issuer: "letsencrypt-prod-http01"
#    nginx.ingress.kubernetes.io/service-weight: ''
#    nginx.ingress.kubernetes.io/force-ssl-redirect: 'true'
spec:
  rules:
    - host: nacos-dev.bonc.com
      http:
        paths:
          - path: /nacos
            backend:
              serviceName: dev-nacos
              servicePort: server

5、根据文件创建资源

#kubectl  apply  -f  nacos-cm.yaml
#kubectl  apply  -f  nacos-statefulet.yaml
#kubectl  apply  -f  nacos-service.yaml
#kubectl  apply  -f  nacos-ingress.yaml

三、验证nacos可用性

 配置hosts文件

172.16.43.156   nacos-dev.bonc.com