文章目录
- 创建 Deployment 文件
- 创建 ConfigMap 文件
- 创建 Service 文件
- 运行
- 访问
- 高可用部署
- 踩坑
官方文档
k8s中volumeMounts.subPath的巧妙用法
创建 Deployment 文件
deploymemt.yaml
- namespace:指定命名空间
- image:使用 1.5.2 版本的镜像
- ports:暴露 8091 和 7091 端口
- volumeMounts:容器中的存储
- mountPath: 存储路径
- subPath:指定出具体文件
- volumes:pod 存储
- configMap.name:对应 configMap 文件的 metadata. name
apiVersion: apps/v1
kind: Deployment
metadata:
  name: seata-server
  namespace: common
  labels:
    k8s-app: seata-server
spec:
  replicas: 1
  selector:
    matchLabels:
      k8s-app: seata-server
  template:
    metadata:
      labels:
        k8s-app: seata-server
    spec:
      containers:
        - name: seata-server
          image: docker.io/seataio/seata-server:1.5.2
          imagePullPolicy: IfNotPresent
          ports:
            - name: http-7091
              containerPort: 7091
              protocol: TCP
            - name: http-8091
              containerPort: 8091
              protocol: TCP
          volumeMounts:
            - name: seata-config
              mountPath: /seata-server/resources/application.yml
              subPath: application.yml
      volumes:
        - name: seata-config
          configMap:
            name: seata-server-config
创建 ConfigMap 文件
configmap.yaml
 映射 application.yml 文件,例子使用 seata 原始配置文件
apiVersion: v1
kind: ConfigMap
metadata:
  name: seata-server-config
  namespace: common
data:
  application.yml: |
    server:
      port: 7091
    spring:
      application:
        name: seata-server
    logging:
      config: classpath:logback-spring.xml
      file:
        path: ${user.home}/logs/seata
      extend:
        logstash-appender:
          destination: 127.0.0.1:4560
        kafka-appender:
          bootstrap-servers: 127.0.0.1:9092
          topic: logback_to_logstash
    console:
      user:
        username: seata
        password: seata
    seata:
      config:
        # support: nacos, consul, apollo, zk, etcd3
        type: file
      registry:
        # support: nacos, eureka, redis, zk, consul, etcd3, sofa
        type: file
      store:
        # support: file 、 db 、 redis
        mode: file
    #  server:
    #    service-port: 8091 #If not configured, the default is '${server.port} + 1000'
      security:
        secretKey: SeataSecretKey0c382ef121d778043159209298fd40bf3850a017
        tokenValidityInMilliseconds: 1800000
        ignore:
          urls: /,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-fe/public/**,/api/v1/auth/login
创建 Service 文件
service.yaml
 对外暴露 NodePort 端口
apiVersion: v1
kind: Service
metadata:
  name: seata-server
  namespace: common
  labels:
    k8s-app: seata-server
spec:
  type: NodePort
  ports:
    - port: 8091
      nodePort: 30893
      protocol: TCP
      name: seata-8091
    - port: 7091
      nodePort: 30793
      protocol: TCP
      name: seata-7091
  selector:
    k8s-app: seata-server
运行
kubectl apply -f deployment.yaml
kubectl apply -f configmap.yaml
kubectl apply -f service.yaml
访问
访问 ip:30793 即可访问 seata
 默认账号:seata
 默认密码:seata

  
高可用部署
修改 configmap 映射的 application.yml 文件
- seata.config:配置 seata 配置文件路径
- seata.registry:配置 seata 注册地址
seata:
  config:
    type: nacos
    nacos:
      server-addr: nacosIp:port
      namespace: seata
      group: dev
      username: nacos
      password: nacos
      data-id: seata-dev.yml
  registry:
    type: nacos
    nacos:
      application: seata-server
      server-addr: nacosIp:port
      group: dev
      namespace: seata
      cluster: default
      username: nacos
      password: nacos
deployment 添加多个 pod
 
成功注册上 nacos
 
踩坑
-  问题:按照官方文档 Seata 高可用部署,镜像使用 1.5.0 及以上的版本时,seata 无法正常注册到 nacos 
 解决办法:镜像使用 1.4.2 版本
-  问题:使用 1.4.2 版本版本后,高可用还是有问题,nodeport 暴露后无法访问 
 解决办法:使用本文部署



















