前言：
后端小伙伴们筹备搞pvp对战服务。配置核心选型抉择了阿里云的nacos服务。参照https://nacos.io/zh-cn/docs。因为业务布局都在kubernetes集群上，就简略参照https://nacos.io/zh-cn/docs/use-nacos-with-kubernetes.html做了一个demo让他们先玩一下。
对于nacos:
参照：https://nacos.io/zh-cn/docs/what-is-nacos.html
- 服务发现和衰弱监测： 反对基于 DNS 和基于 RPC 的服务发现。服务提供者应用 原生SDK、OpenAPI、或一个独立的Agent TODO注册 Service 后，服务消费者能够应用DNS TODO 或HTTP&API查找和发现服务。提供对服务的实时的健康检查，阻止向不衰弱的主机或服务实例发送申请
- 动静配置服务： Nacos 提供配置对立治理性能，可能帮忙咱们将配置以中心化、内部化和动态化的形式治理所有环境的利用配置和服务配置。
- 动静 DNS 服务： Nacos 反对动静 DNS 服务权重路由，可能让咱们很容易地实现中间层负载平衡、更灵便的路由策略、流量管制以及数据中心内网的简略 DNS 解析服务。
- 服务及其元数据管理： Nacos 反对从微服务平台建设的视角治理数据中心的所有服务及元数据，包含治理服务的形容、生命周期、服务的动态依赖剖析、服务的衰弱状态、服务的流量治理、路由及安全策略、服务的 SLA 以及最首要的 metrics 统计数据。
嗯 还有更多的个性列表......
一. nacos on kubernetes
根本的装置过程参照：https://github.com/nacos-group/nacos-k8s/blob/master/README-CN.md
1. 创立命名空间
嗯当然了第一步还是先创立一个搭建nacos服务的namespace了：
kubectl create ns nacos2. git clone 仓库
git clone https://github.com/nacos-group/nacos-k8s.git根本都会因为网络起因无奈clone,我是间接下载包到本地 而后上传到服务器了。
3. 部署初始化mysql服务器
生产的话必定是用云商的云数据库了，比方腾讯云的rds服务。因为只是给程序整一个demo让他们玩一下，就讲mysql 整合在kubernetes中了。集体存储storageclass都是应用默认的腾讯云的cbs-csi。
cd /nacos-k8s/mysql(当然了我是上传的目录门路是/root/nacos/nacos-k8s-master/deploy/mysql)1. 部署mysql服务
cat pvc.yaml
apiVersion: v1kind: PersistentVolumeClaimmetadata:name: nacos-mysql-pvcnamespace: nacosspec:accessModes:- ReadWriteOnceresources: requests: storage: 10GistorageClassName: cbs-csimysql的部署文件间接复制了mysql-ceph.yaml的批改了一下：
cat mysql.yamlapiVersion: v1kind: PersistentVolumeClaimmetadata:name: nacos-mysql-pvcnamespace: nacosspec:accessModes:- ReadWriteOnceresources: requests: storage: 10GistorageClassName: cbs-csi[root@sh-master-01 mysql]# cat mysql.yaml apiVersion: v1kind: ReplicationControllermetadata:name: mysqllabels: name: mysqlspec:replicas: 1selector: name: mysqltemplate: metadata: labels: name: mysql spec: containers: - name: mysql image: nacos/nacos-mysql:5.7 ports: - containerPort: 3306 env: - name: MYSQL_ROOT_PASSWORD value: "root" - name: MYSQL_DATABASE value: "nacos_devtest" - name: MYSQL_USER value: "nacos" - name: MYSQL_PASSWORD value: "nacos" volumeMounts: - name: mysql-persistent-storage mountPath: /var/lib/mysql subPath: mysql readOnly: false volumes: - name: mysql-persistent-storage persistentVolumeClaim: claimName: nacos-mysql-pvc---apiVersion: v1kind: Servicemetadata:name: mysqllabels: name: mysqlspec:ports:- port: 3306 targetPort: 3306selector: name: mysqlkubectl apply -f pvc.yamlkubectl apply -f mysql.yaml -n nacoskubectl get pods -n nacos期待mysql pods running
$kubectl get pods -n nacosNAME READY STATUS RESTARTS AGEmysql-hhs5q 1/1 Running 0 3h51m2. 进入mysql 容器执行初始化脚本
kubectl exec -it mysql-hhs5q bash -n nacosmysql -uroot -p root *****create database nacos_devtest;use nacos_devtest;### 我是图省事，把这sql脚本外面间接复制进去搞了...https://github.com/alibaba/nacos/blob/develop/distribution/conf/nacos-mysql.sql-------退出mysql控制台，并退出容器quit; exit4. 部署nacos
从mysql目录 cd ../nacos
cat nacos.yaml---apiVersion: v1kind: Servicemetadata:name: nacos-headlesslabels: app: nacosannotations: service.alpha.kubernetes.io/tolerate-unready-endpoints: "true"spec:ports: - port: 8848 name: server targetPort: 8848 - port: 7848 name: rpc targetPort: 7848clusterIP: Noneselector: app: nacos---apiVersion: v1kind: ConfigMapmetadata:name: nacos-cmdata:mysql.db.name: "nacos_devtest"mysql.port: "3306"mysql.user: "nacos"mysql.password: "nacos"---apiVersion: apps/v1kind: StatefulSetmetadata:name: nacosspec:serviceName: nacos-headlessreplicas: 3template: metadata: labels: app: nacos annotations: pod.alpha.kubernetes.io/initialized: "true" spec: affinity: podAntiAffinity: requiredDuringSchedulingIgnoredDuringExecution: - labelSelector: matchExpressions: - key: "app" operator: In values: - nacos topologyKey: "kubernetes.io/hostname" initContainers: - name: peer-finder-plugin-install image: nacos/nacos-peer-finder-plugin:1.0 imagePullPolicy: Always volumeMounts: - mountPath: /home/nacos/plugins/peer-finder name: plguindir containers: - name: nacos imagePullPolicy: Always image: nacos/nacos-server:latest resources: requests: memory: "2Gi" cpu: "500m" ports: - containerPort: 8848 name: client-port - containerPort: 7848 name: rpc env: - name: NACOS_REPLICAS value: "2" - name: SERVICE_NAME value: "nacos-headless" - name: DOMAIN_NAME value: "layabox.daemon" - name: POD_NAMESPACE valueFrom: fieldRef: apiVersion: v1 fieldPath: metadata.namespace - name: MYSQL_SERVICE_DB_NAME valueFrom: configMapKeyRef: name: nacos-cm key: mysql.db.name - name: MYSQL_SERVICE_PORT valueFrom: configMapKeyRef: name: nacos-cm key: mysql.port - name: MYSQL_SERVICE_USER valueFrom: configMapKeyRef: name: nacos-cm key: mysql.user - name: MYSQL_SERVICE_PASSWORD valueFrom: configMapKeyRef: name: nacos-cm key: mysql.password - name: NACOS_SERVER_PORT value: "8848" - name: NACOS_APPLICATION_PORT value: "8848" - name: PREFER_HOST_MODE value: "hostname" volumeMounts: - name: plguindir mountPath: /home/nacos/plugins/peer-finder - name: datadir mountPath: /home/nacos/data - name: logdir mountPath: /home/nacos/logsvolumeClaimTemplates: - metadata: name: plguindir spec: accessModes: [ "ReadWriteOnce" ] storageClassName: "cbs-csi" resources: requests: storage: 10Gi - metadata: name: datadir spec: accessModes: [ "ReadWriteOnce" ] storageClassName: "cbs-csi" resources: requests: storage: 10Gi - metadata: name: logdir spec: accessModes: [ "ReadWriteOnce" ] storageClassName: "cbs-csi" resources: requests: storage: 10Giselector: matchLabels: app: nacos次要就是批改了storageclassName为 cbs-csi。并批改了accessmodes,还有DOMAIN_NAME变量批改为本人命名的集群后缀.简略demo不做具体阐述。
kubectl apply -f nacos.yaml -n nacos期待服务running
5. 对外裸露服务
代理集体应用的是traefik。过来都是用ingresroute的形式对外映射裸露服务，当初用想ingress的形式：
cat ingress.yamlapiVersion: networking.k8s.io/v1kind: Ingressmetadata:name: nacos-headless-httpnamespace: nacosannotations: kubernetes.io/ingress.class: traefik traefik.ingress.kubernetes.io/router.entrypoints: webspec:rules:- host: nacos-server.saynaihe.com http: paths: - pathType: Prefix path: / backend: service: name: nacos-headless port: number: 8848kubectl apply -f ingress.yaml
拜访：https://nacos-server.layame.com/nacos肯定记得域名前面跟上nacos。否则是404呢，当然了也能够在ingress配置下面重定向间接到nacos下？看集体怎么玩了。
默认用户名明码 ：nacos nacos。当然了第一件事是批改明码......
嗯 先扔给程序去玩下了。还有很多配置的货色省略了。比方很多参数和变量，能够参照下官网配置进行搞一下......