『高级篇』docker之DockerSwarm调整微服务及服务配置(29)
2019-02-15 09:52:49
李明
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上次已经搭建好了swarm的集群环境,server01,server02,server03三台虚拟机,每一台的manager节点也是work节点,首先我们考虑的问题是服务的发现,从微服务的角度考虑,我们有得服务是为了其他服务使用的,如message service,user service,对于swarm上,有的需要暴露端口给其他服务使用,有的是直接通过服务的名称就可以访问的,改造模式,改造代码,然后上传到镜像仓库。最后配置一个docker stack 把他们的关系编写出来,一条命令搞定了。源码: https://github.com/limingios/msA-docker swarm分支

修改微服务的配置

  • course-dubbo-service

sh

#!/usr/bin/env bash
source ~/.bash_profile
mvn package
docker build -f ./Dockerfile-hub -t zhugeaming/course-dubbo-service:latest  .
docker push zhugeaming/course-dubbo-service:latest

Dockerfile

FROM java:openjdk-8
MAINTAINER liming www.idig8.com
COPY target/course-dubbo-service-1.0-SNAPSHOT.jar /course-dubbo-service.jar
ENTRYPOINT ["java","-jar","/course-dubbo-service.jar"]
  • course-edge-service

sh

#!/usr/bin/env bash
source ~/.bash_profile
mvn package
docker build -f ./Dockerfile-hub -t zhugeaming/course-edge-service:latest .
docker push zhugeaming/course-edge-service:latest

Dockerfile

FROM java:openjdk-8
MAINTAINER liming www.idig8.com
COPY target/course-edge-service-1.0-SNAPSHOT.jar /course-edge-service.jar
ENTRYPOINT ["java","-jar","/course-edge-service.jar"]
  • gataway-zuul

sh

#!/usr/bin/env bash
source ~/.bash_profile
mvn package
docker build -f ./Dockerfile-hub -t zhugeaming/gataway-zuul:latest .
docker push zhugeaming/gataway-zuul:latest

Dockfile

FROM java:openjdk-8
MAINTAINER liming www.idig8.com
COPY target/gataway-zuul-1.0-SNAPSHOT.jar /gataway-zuul.jar
ENTRYPOINT ["java","-jar","/gataway-zuul.jar"]
  • user-edge-service

sh

#!/usr/bin/env bash
source ~/.bash_profile
mvn package
docker build -f ./Dockerfile-hub -t zhugeaming/user-edge-service:latest .
docker push zhugeaming/user-edge-service:latest

Dockerfile

#!/usr/bin/env bash
source ~/.bash_profile
mvn package
docker build -f ./Dockerfile-hub -t zhugeaming/user-edge-service:latest .
docker push zhugeaming/user-edge-service:latest
  • user-thrift-service

sh

#!/usr/bin/env bash
source ~/.bash_profile
mvn package
docker build -f ./Dockerfile-hub -t zhugeaming/user-thrift-service:latest .
docker push zhugeaming/user-thrift-service:latest

Dockerfile

FROM java:openjdk-8
MAINTAINER liming www.idig8.com
COPY target/user-thrift-service-1.0-SNAPSHOT.jar /user-thrift-service.jar
ENTRYPOINT ["java","-jar","/user-thrift-service.jar"]
  • 编写yml文件 使用docker stack 进行批量生成

version: "3.4"
services:
  message-thrift-python-service:
    image: zhugeaming/message-thrift-python-service:latest
    deploy:
      endpoint_mode: dnsrr
      resources:
        limits:
          cpus: "0.2"
          memory: "128M"
  user-thrift-service:
    image: zhugeaming/user-thrift-service:latest
    deploy:
      endpoint_mode: dnsrr
      resources:
        limits:
          cpus: "0.2"
          memory: "512M"
  user-edge-service:
    image: zhugeaming/user-edge-service:latest
    deploy:
      endpoint_mode: vip
      resources:
        limits:
          cpus: "0.2"
          memory: "512M"
    ports:
    - "8082:8082"
    depends_on:
    - user-thrift-service
    - message-thrift-python-service
  course-dubbo-service:
    image: zhugeaming/user-edge-service:latest
    deploy:
      endpoint_mode: dnsrr
      resources:
        limits:
          cpus: "0.2"
          memory: "512M"
    depends_on:
    - user-thrift-service
  course-edge-service:
    image: zhugeaming/course-edge-service:latest
    deploy:
      endpoint_mode: vip
      resources:
        limits:
          cpus: "0.2"
          memory: "512M"
    ports:
    - "8081:8081"
    depends_on:
    - user-edge-service
  gateway-zuul:
    image: zhugeaming/gataway-zuul:latest
    deploy:
      endpoint_mode: vip
      resources:
        limits:
          cpus: "0.2"
          memory: "512M"
    ports:
    - "8080:8080"
    depends_on:
    - user-edge-service
    - course-edge-service
networks:
  default:
    external:
      name: idig8-overlay


v2-a704af42aeaf45d8188c491b70e2bd53_hd.p

docker stack 创建,因为机器内存太小,我还是使用的外网,下载镜像有点慢。

docker stack deploy -c ms-service.yml ms
docker stack services ms


v2-92d4033e819cbf8eef8f8e0ac5c7f66b_hd.p


v2-2188fda53c9cdf2515cb1f6951824fdf_hd.p

PS:创建成功,下一步就是调试微服务。


v2-5e0719d9fc7dd03ce32e624534c0b631_hd.p