k8s集群部署nacos,采用的是 emptyDir 临时目录挂载

官方参考地址：https://nacos.io/zh-cn/docs/use-nacos-with-kubernetes.html

说明：

1、官网采用的nfs持久化部署

我将nacos持久化改成 emptyDir 临时目录挂载，同时又能满足自行调节nacos集群实例数。

2. emptyDir 临时目录挂载的nacos.yaml

cat  > nacos.yaml << EOF
# nacos.yaml 可调整 集群副本数 扩容
---
apiVersion: v1
kind: Service
metadata:name: nacos-headlesslabels:app: nacosannotations:service.alpha.kubernetes.io/tolerate-unready-endpoints: "true"
spec:ports:- port: 8848name: servertargetPort: 8848- port: 9848name: client-rpctargetPort: 9848- port: 9849name: raft-rpctargetPort: 9849## 兼容1.4.x版本的选举端口- port: 7848name: old-raft-rpctargetPort: 7848type: NodePort#clusterIP: None  #如果不暴露端口需要开启这个selector:app: nacos
---
apiVersion: v1
kind: ConfigMap
metadata:name: nacos-cm
data:mysql.db.name: "nacos"mysql.port: "3306"mysql.user: "nacos"mysql.password: "nacos"mysql.host: "nacos"
---
apiVersion: apps/v1
kind: StatefulSet
metadata:name: nacos
spec:serviceName: nacos-headlessreplicas: 1template:metadata:labels:app: nacosannotations:pod.alpha.kubernetes.io/initialized: "true"spec:initContainers:- name: peer-finder-plugin-installimage: nacos/nacos-peer-finder-plugin:1.1imagePullPolicy: IfNotPresentvolumeMounts:- mountPath: /home/nacos/plugins/peer-findername: datasubPath: peer-findercontainers:- name: nacosimage: nacos/nacos-server:latestimagePullPolicy: IfNotPresentports:- containerPort: 8848name: client-port- containerPort: 9848name: client-rpc- containerPort: 9849name: raft-rpc- containerPort: 7848name: old-raft-rpcenv:- name: NACOS_REPLICASvalue: "3"# 若是使用单实例部署 nacos ,需要设置： MODE=standalone#  - name: MODE  ## 系统启动方式: 集群/单机; cluster/standalone默认 cluster #    value: standalone- name: SERVICE_NAMEvalue: "nacos-headless"- name: DOMAIN_NAMEvalue: "cluster.local"- name: POD_NAMESPACEvalueFrom:fieldRef:apiVersion: v1fieldPath: metadata.namespace- name: MYSQL_SERVICE_DB_NAMEvalueFrom:configMapKeyRef:name: nacos-cmkey: mysql.db.name- name: MYSQL_SERVICE_PORTvalueFrom:configMapKeyRef:name: nacos-cmkey: mysql.port- name: MYSQL_SERVICE_USERvalueFrom:configMapKeyRef:name: nacos-cmkey: mysql.user- name: MYSQL_SERVICE_HOSTvalueFrom:configMapKeyRef:name: nacos-cmkey: mysql.host- name: MYSQL_SERVICE_PASSWORDvalueFrom:configMapKeyRef:name: nacos-cmkey: mysql.password- name: NACOS_SERVER_PORTvalue: "8848"- name: NACOS_APPLICATION_PORTvalue: "8848"- name: PREFER_HOST_MODEvalue: "hostname"volumeMounts:- name: datamountPath: /home/nacos/plugins/peer-findersubPath: peer-finder
#            - name: data
#              mountPath: /home/nacos/data
#              subPath: data
#            - name: data
#              mountPath: /home/nacos/logs
#              subPath: logs#   将 nacos 持久化改成 非持久化方式；官网使用的是 StorageClass 方式，需要依赖nfs等共享存储，以及共享存储插件实现volumes:- name: dataemptyDir: {}selector:matchLabels:app: nacos
EOF

docker pull  nacos/nacos-peer-finder-plugin:1.1      
docker pull  nacos/nacos-server:latest
kubectl apply -f nacos.yaml

3.登录验证

kubectl get pods,svc  #查看暴露端口

root@k8s-master:~# kubectl get pods,svc
NAME          READY   STATUS    RESTARTS   AGE
pod/nacos-0   1/1     Running   0          8m12sNAME                     TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)                                                       AGE
service/kubernetes       ClusterIP   10.96.0.1      <none>        443/TCP                                                       106d
service/nacos-headless   NodePort    10.104.86.31   <none>        8848:30719/TCP,9848:31354/TCP,9849:31262/TCP,7848:32512/TCP   13m
root@k8s-master:~#