『高級篇』docker之DockerSwarm調整微服務及服務配置（29）

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原文鏈接地址：『高級篇』docker之DockerSwarm調整微服務及服務配置（29）

上次已經搭建好了swarm的集群環境，server01，server02，server03三臺虛擬機，每一臺的manager節點也是work節點，首先我們考慮的問題是服務的發現，從微服務的角度考慮，我們有得服務是為了其他服務使用的，如message service，user service，對于swarm上，有的需要暴露端口給其他服務使用，有的是直接通過服務的名稱就可以訪問的，改造模式，改造代碼，然后上傳到鏡像倉庫。最后配置一個docker stack 把他們的關系編寫出來，一條命令搞定了。源碼：https://github.com/limingios/msA-docker swarm分支

修改微服務的配置

• 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
``` bash
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
``` bash
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
``` bash
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"]

* 編寫yml文件 使用docker stack 進行批量生成

``` yml
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 創建，因為機器內存太小，我還是使用的外網，下載鏡像有點慢。

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

PS：創建成功，下一步就是調試微服務。