容器化案例一:.NET服务容器化

公司教研系统、课件系统、截图服务还有一些其他零散的后台管理系统使用.NET服务编写，这篇文章记录相关服务容器化内容。

编译打包

dotnet restore --configfile "NuGet.config" "ContractFile/ContractFile.csproj"
cd ContractFile
dotnet build "ContractFile.csproj" -c Release -o ./app/ContractFile
dotnet publish "ContractFile.csproj" -c Release -o ./app/ContractFile


dotnet restore --configfile "NuGet.config" "ContractFile.WorkerService/ContractFile.WorkerService.csproj"
cd ContractFile.WorkerService
dotnet build "ContractFile.WorkerService.csproj" -c Release -o ./app/ContractFile.WorkerService
dotnet publish "ContractFile.WorkerService.csproj" -c Release -o ./app/ContractFile.WorkerService

该项目分多个模块，分别单独部署

Dockerfile文件编写

FROM harbor.k8s.xxx.com/public/dot_net6.0

WORKDIR /app

RUN set -e

RUN apt-get -y update && \
    apt-get install -y traceroute inetutils-ping telnet net-tools curl

RUN sed -i 's/TLSv1.2/TLSv1/g' /etc/ssl/openssl.cnf && \
    sed -i 's/DEFAULT@SECLEVEL=2/DEFAULT@SECLEVEL=1/g' /etc/ssl/openssl.cnf

COPY /AXX_ContractFile/app/AXX_ContractFile /app/

ENV ASPNETCORE_URLS=http://*:80

ENTRYPOINT ["dotnet", "ContractFile.dll"]

deployment文件编写

{{$MODULE := "contractfileapi" }}
{{$TRUE_APP_NAME := (printf "%v-%v" .Env.FLOW_STANDARD_NAME $MODULE)}}


---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{$TRUE_APP_NAME}}-deploy
  labels:
    rd: {{.Env.CMP_RD}}
    app: {{.Env.FLOW_STANDARD_NAME}}
    project-name: {{.Env.FLOW_PROJECT_NAME}}
    module: {{$MODULE}}
spec:
  replicas: {{.Env.D_STATUS_REPLICAS}}
  selector:
    matchLabels:
      app: {{.Env.FLOW_STANDARD_NAME}}
      project-name: {{.Env.FLOW_PROJECT_NAME}}
      module: {{$MODULE}}
  template:
    metadata:
      annotations:
        alibabacloud.com/burst-resource: eci
      labels:
        rd: {{.Env.CMP_RD}}
        app: {{.Env.FLOW_STANDARD_NAME}}
        project-name: {{.Env.FLOW_PROJECT_NAME}}
        module: {{$MODULE}}
    spec:
      dnsConfig:
        options:
          - name: ndots
            value: "3"
      imagePullSecrets:
        - name: harbor-registry
      containers:
        - name: serve
          image: {{.Env.IMAGE_NAME}}
          imagePullPolicy: Always
          startupProbe:
            tcpSocket:
              port: {{.Env.CMP_PORT }}
            initialDelaySeconds: 15
            periodSeconds: 10
            timeoutSeconds: 1
            successThreshold: 1
            failureThreshold: 30
          livenessProbe:
            tcpSocket:
              port: {{.Env.CMP_PORT }}
            initialDelaySeconds: 10
            periodSeconds: 10
            timeoutSeconds: 1
            successThreshold: 1
            failureThreshold: 15
          env:
          - name: JAVA_APP_OPTS
            value: {{if eq .Env.FLOW_DIST_ENV "pre"}}"-Denv=PRO -Didc=pre"{{else}}"-Denv=PRO"{{end}}
          - name: ENABLE_PP_AGENT
            value: {{if eq .Env.FLOW_DIST_ENV "pre"}}"0"{{else}}"1"{{end}}
          - name:  ASPNETCORE_ENVIRONMENT
            value: {{if eq .Env.FLOW_DIST_ENV "pre"}}"iflowStaging"{{else}}"Production"{{end}}
          resources:
            limits:
              cpu: 1000m
              memory: 2048Mi
            requests:
              cpu: 40m
              memory: 1024Mi
          ports:
            - containerPort: {{.Env.CMP_PORT}}
              name: web
              protocol: TCP
          volumeMounts:
          - name: logs
            mountPath: /tmp/log
          - name: filebeat-data
            mountPath: /data/var/log

      volumes:
      - name: logs
        persistentVolumeClaim:
          claimName: log-nas
      - name: filebeat-data
        emptyDir: {}
...



---
apiVersion: v1
kind: Service
metadata:
  name: {{$TRUE_APP_NAME}}-svc
  labels:
    rd: {{.Env.CMP_RD}}
    app: {{.Env.FLOW_STANDARD_NAME}}
    module: {{$MODULE}}
spec:
  type: ClusterIP
  selector:
    app: {{.Env.FLOW_STANDARD_NAME}}
    module: {{$MODULE}}
  ports:
    - name: web
      protocol: TCP
      port: {{.Env.CMP_PORT}}
      targetPort: {{.Env.CMP_PORT}}
...

常用的dotnet命令说明

dotnet new
dotnet test
dotnet clean
dotnet restore  下载依赖
dotnet build     构建
dotnet run       运行
dotnet publish   将应用程序及其依赖项发布到文件夹以部署到托管系统

• 所有CLI命令说明: https://learn.microsoft.com/zh-cn/dotnet/core/tools/

参考资料

• 第一手准确资料微软官网

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本文作者：dongsheng
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