k8s搭建高可用spring-cloud-config配置中心集群_小小白鸽

网络 02-07 6606

k8s搭建高可用配置中心查找镜像docker部署关闭认证方式部署开启认证方式部署 docker-compose方式部署k8s方式部署使用configMap挂载配置挂载本地目录方式测试应用加载配置中心配置启动

查找镜像

镜像地址: https://hub.docker.com/r/lhstack/config-server

docker部署关闭认证方式部署 docker run --name config-server -p 7000:7000 -e EUREKA_SERVER_URL="http://admin:123456@10.43.87.61:8761/eureka" -e SECURITY_ENABLE=false -d lhstack/config-server

开启认证方式部署 # 停掉之前运行的容器 docker rm -f config-server # 启动带认证方式的容器,使用默认用户名和密码 docker run --name config-server -p 7000:7000 -e EUREKA_SERVER_URL="http://admin:123456@10.43.87.61:8761/eureka" -v ${PWD}/config:/config-server/conf/config -d lhstack/config-server

这个时候就需要用户名和密码了

docker-compose方式部署 # 停掉启动的容器 docker rm -f config-server cat > docker-compose.yml <<EOF version: '3' services: config-server-1: image: lhstack/config-server container_name: config-server-1 ports: - 7001:7000 environment: EUREKA_SERVER_URL: "http://admin:123456@10.43.87.61:8761/eureka" JAVA_OPTS: "-Xmx128m -Xms128m" SECURITY_USERNAME: admin SECURITY_PASSWORD: admin volumes: - ./config:/config-server/conf/config deploy: resources: limits: cpus: '1' memory: '256M' logging: options: max-file: '1' max-size: '3k' config-server-2: image: lhstack/config-server container_name: config-server-2 ports: - 7002:7000 environment: EUREKA_SERVER_URL: "http://admin:123456@10.43.87.61:8761/eureka" JAVA_OPTS: "-Xmx128m -Xms128m" SECURITY_USERNAME: admin SECURITY_PASSWORD: admin volumes: - ./config:/config-server/conf/config deploy: resources: limits: cpus: '1' memory: '256M' logging: options: max-file: '1' max-size: '3k' EOF docker-compose up -d

在config目录下面创建对应配置文件

k8s方式部署使用configMap挂载配置 # 停掉启动的配置中心 docker-compose down # 生成脚本 cat > config-server.yml<<EOF apiVersion: v1 kind: Service metadata: name: config-server spec: type: ClusterIP ports: - name: http port: 7000 selector: app: config-server --- apiVersion: v1 kind: ConfigMap metadata: name: config-server data: test-a.yml: | server: port: 8761 --- apiVersion: apps/v1 kind: Deployment metadata: name: config-server spec: replicas: 2 selector: matchLabels: app: config-server template: metadata: labels: app: config-server spec: volumes: - name: config configMap: name: config-server containers: - name: config-server image: lhstack/config-server imagePullPolicy: IfNotPresent ports: - containerPort: 7000 env: - name: "JAVA_OPTS" value: "-Xmx512m -Xms512m" - name: EUREKA_SERVER_URL value: "http://admin:123456@10.43.87.61:8761/eureka" - name: SECURITY_USERNAME value: "admin" - name: SECURITY_PASSWORD value: "123456" volumeMounts: - name: config mountPath: /config-server/conf/config resources: requests: cpu: 50m memory: 64Mi limits: cpu: 100m memory: 512Mi EOF kubectl apply -f config-server.yml kubectl get pod

第一次安装会先拉取镜像修改configMap中配置的内容，加上test-b.yml配置

等待几秒钟，再次访问配置中心

挂载本地目录方式 # 停掉之前启动的集群 kubectl delete -f config-server.yml # 创建集群 cat > config-server.yml<<EOF apiVersion: v1 kind: Service metadata: name: config-server spec: type: ClusterIP ports: - name: http port: 7000 selector: app: config-server --- apiVersion: apps/v1 kind: Deployment metadata: name: config-server spec: replicas: 2 selector: matchLabels: app: config-server template: metadata: labels: app: config-server spec: volumes: - name: config hostPath: path: /home/springcloud/config-server/config #挂载配置所在目录 containers: - name: config-server image: lhstack/config-server imagePullPolicy: IfNotPresent ports: - containerPort: 7000 env: - name: "JAVA_OPTS" value: "-Xmx512m -Xms512m" - name: EUREKA_SERVER_URL value: "http://admin:123456@10.43.87.61:8761/eureka" - name: SECURITY_USERNAME value: "admin" - name: SECURITY_PASSWORD value: "123456" volumeMounts: - name: config mountPath: /config-server/conf/config resources: requests: cpu: 50m memory: 64Mi limits: cpu: 100m memory: 512Mi EOF # 启动集群 kubectl apply -f config-server.yml

添加配置到挂载的目录里面

测试应用加载配置中心配置启动