docker-compose之.netcore+mysql+Ocelot多容器部署

继上节.NetCoreApi容器与MySql容器互联继续讲解，主要增加了Ocelot网关。

 

项目结构

 

 

编写 docker-compose.yml 文件

 

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version: '3' services:   db:     image: mysql:5.5      command: mysqld --character-set-server=utf8 --collation-server=utf8_general_ci      container_name: db      restart: always     ports:       - "3306:3306"     environment:       - MYSQL_PASSWORD=123456       - MYSQL_ROOT_PASSWORD=123456       - MYSQL_USER=yak     networks:       - dev     volumes:        - "./db:/var/lib/mysql"       - "./conf/my.cnf:/etc/my.cnf"       - "./init:/docker-entrypoint-initdb.d/"   gateway:     container_name: gateway     build:       context: ./OcelotGateway       dockerfile: Dockerfile     ports:       - 80:80     environment:       TZ: "Asia/Shanghai"       ASPNETCORE_ENVIRONMENT: "Production"     links:       - a       - b       - c       - d     networks:       - dev   a:     container_name: businessa     hostname: Business_A     build:       context: ./BusinessProjectA       dockerfile: Dockerfile     ports:       - 81:80     environment:       TZ: "Asia/Shanghai"       ASPNETCORE_ENVIRONMENT: "Production"     networks:       - dev   b:     container_name: businessb     hostname: Business_B     build:       context: ./BusinessProjectA       dockerfile: Dockerfile     ports:       - 82:80     environment:       TZ: "Asia/Shanghai"       ASPNETCORE_ENVIRONMENT: "Production"     networks:       - dev   c:     container_name: businessc     hostname: Business_C     build:       context: ./BusinessProjectA       dockerfile: Dockerfile     ports:       - 83:80     environment:       TZ: "Asia/Shanghai"       ASPNETCORE_ENVIRONMENT: "Production"     networks:       - dev       - pro   d:     container_name: businessd     hostname: Business_D     build:       context: ./Yak.Docker.Test       dockerfile: Dockerfile     ports:       - 84:80     environment:       TZ: "Asia/Shanghai"       ASPNETCORE_ENVIRONMENT: "Production"     networks:       - dev       - pro   e:     container_name: businesse     hostname: Business_E     build:       context: ./Yak.DockerCompose.Api       dockerfile: Dockerfile     ports:       - 85:80     environment:       TZ: "Asia/Shanghai"       ASPNETCORE_ENVIRONMENT: "Production"     networks:       - dev       - pro     depends_on:       - db networks:   dev:     driver: bridge   pro:     driver: bridge

　　

编写 ocelot.json 文件

{
  "Routes": [
    {
      "UpstreamPathTemplate": "/business/{url}",
      "UpstreamHttpMethod": [ "Get", "Post", "Put", "Delete", "Patch", "Options", "Head", "Trace", "Connect", "Purge", "None" ],
      "DownstreamPathTemplate": "/{url}",
      "DownstreamScheme": "http",
      "DownstreamHostAndPorts": [
        {
          "Port": "80",
          "Host": "businessa"
        },
        {
          "Port": "80",
          "Host": "businessb"
        },
        {
          "Port": "80",
          "Host": "businessc"
        }
      ],
      "LoadBalancerOptions": {
        "Type": "LeastConnection",
        "Exact": true
      }
    },
    {
      "UpstreamPathTemplate": "/weather/{url}",
      "UpstreamHttpMethod": [ "Get", "Post", "Put", "Delete", "Patch", "Options", "Head", "Trace", "Connect", "Purge", "None" ],
      "DownstreamPathTemplate": "/{url}",
      "DownstreamScheme": "http",
      "DownstreamHostAndPorts": [
        {
          "Port": "80",
          "Host": "businessd"
        }
      ],
      "LoadBalancerOptions": {
        "Type": "LeastConnection",
        "Exact": true
      }
    },
    {
      "UpstreamPathTemplate": "/user/{url}",
      "UpstreamHttpMethod": [ "Get", "Post", "Put", "Delete", "Patch", "Options", "Head", "Trace", "Connect", "Purge", "None" ],
      "DownstreamPathTemplate": "/{url}",
      "DownstreamScheme": "http",
      "DownstreamHostAndPorts": [
        {
          "Port": "80",
          "Host": "businesse"
        }
      ],
      "LoadBalancerOptions": {
        "Type": "LeastConnection",
        "Exact": true
      }
    }
  ],
  "DynamicReRoutes": [],
  "Aggregates": [],
  "GlobalConfiguration": {
    "BaseUrl": "http://localhost"
  }
}

 

代码拷贝到Linux系统中

 

 

启动 docker-compose

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1	docker-compose up -d --build

　　

 

 

 

查看

 

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1	docker-compose ps

　　

 

 

 

访问 http://192.168.192.138/user/User/Get

 

 

 

 

 

 

Docker网络(重要)
 可以看到在使用docker-compose管理项目的时候，docker-compose会自动给我们创建一个项目网络，这是docker-compose的网络默认规则，创建的项目网络可以方便我们管理维护项目，同一个项目的所有服务可以直接互相通过服务名访问！！！

 这样的一个好处是：开发不需要在配置中写死某个服务的IP地址，只需要写服务名即可，当该服务异常挂掉，同一个服务重启后IP可能会不同，如果写死的话就得去更改，很麻烦。所以这就是docker-compose默认创建网络提供的便利性。