Dapr牵手.NET学习笔记：用docker-compose部署服务

上一篇聊到用两个物理机（一个win,一个mac）来部署dapr和服务，实现order调用pay的负载均衡。本篇说一下在windows上的docker部署这三个服务，达到与上一篇的效果。

三个服务的部署架构是这样的

首先要把OrderSystem(服务端口80)项目docker化，Dockerfile内容为：

FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS baseWORKDIR /appEXPOSE 80
FROM mcr.microsoft.com/dotnet/sdk:6.0 AS buildWORKDIR /srcCOPY ["/OrderSystem/OrderSystem.csproj", "OrderSystem/"]RUN dotnet restore "OrderSystem/OrderSystem.csproj"COPY . .WORKDIR "/src/OrderSystem"RUN dotnet build "OrderSystem.csproj" -c Release -o /app/build
FROM build AS publishRUN dotnet publish "OrderSystem.csproj" -c Release -o /app/publish
FROM base AS finalWORKDIR /appCOPY --from=publish /app/publish .ENTRYPOINT ["dotnet", "OrderSystem.dll"]

其实要把PaymentSystem(服务端口80)项目docker化，Dockerfile内容为：

FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS baseWORKDIR /appEXPOSE 80
FROM mcr.microsoft.com/dotnet/sdk:6.0 AS buildWORKDIR /srcCOPY ["/PaymentSystem/PaymentSystem.csproj", "PaymentSystem/"]RUN dotnet restore "PaymentSystem/PaymentSystem.csproj"COPY . .WORKDIR "/src/PaymentSystem"RUN dotnet build "PaymentSystem.csproj" -c Release -o /app/build
FROM build AS publishRUN dotnet publish "PaymentSystem.csproj" -c Release -o /app/publish
FROM base AS finalWORKDIR /appCOPY --from=publish /app/publish .ENTRYPOINT ["dotnet", "PaymentSystem.dll"]

同时再添加一个docker-compose项目(右键 OrderSystem或PaymentSystem，Add，选择Container Orchestrator Support即可)，命名为B2C，目录结构如下：

其中docker-compose.yml内容如下

version: '3.4'
services:  ordersystem:    image: ${DOCKER_REGISTRY-}ordersystem    build:      context: ../      dockerfile: /OrderSystem/Dockerfile    ports:      - "3500:3500"    volumes:         - ../OrderSystem:/OrderSystem     ordersystem-dapr:     image: "daprio/daprd:latest"     command: [ "./daprd", "-app-id", "order", "-app-port", "80" ]     depends_on:       - ordersystem


    
     network_mode: "service:ordersystem"       paymentsystem1:    image: ${DOCKER_REGISTRY-}paymentsystem    build:      context: ../      dockerfile: /PaymentSystem/Dockerfile    ports:      - "3601:3500"    volumes:         - ../PaymentSystem:/PaymentSystem           paymentsystem1-dapr:     image: "daprio/daprd:latest"     command: [ "./daprd", "-app-id", "pay", "-app-port", "80" ]     depends_on:       - paymentsystem1     network_mode: "service:paymentsystem1"
  paymentsystem2:    image: ${DOCKER_REGISTRY-}paymentsystem    build:      context: ../      dockerfile: /PaymentSystem/Dockerfile    volumes:         - ../PaymentSystem:/PaymentSystem                ports:      - "3602:3500"  paymentsystem2-dapr:     image: "daprio/daprd:latest"     command: [ "./daprd", "-app-id", "pay", "-app-port", "80" ]     depends_on:       - paymentsystem2     network_mode: "service:paymentsystem2"

为了使PaymentSystem部署多个副本，我在docker-compose.yml中配置了paymentsystem1和paymentsystem2，它们使用的都是PaymentSystem项目的信息。关于docker-compose就不多说了。

进入B2C目录，启动三个服务，命令如下：

docker-compose up -d

就会在docker中启动三个服务，一个order，两个pay，如下：

看一下结果吧，同样是postman，输入localhost:3500/v1.0/invoke/order/method/order，就会看到pay会轮询调用。

paymentsystem1