『高级篇』docker之DockerSwarm调整微服务及服务配置（29）

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

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 

PS：创建成功，下一步就是调试微服务。