Azure发布管道发布到NetCore 3.1 Linux应用程序服务失败，并显示退出代码145-“无法在日志中找到任何.NET Core SDK”

Question

我正在发布一个.net core 3.1应用程序，该应用程序保存在Azure DevOps存储库中，内置在构建管道中并发布到Azure Linux Web App Service容器中。整个过程似乎进展顺利，根据App Service中的部署刀片，部署成功。

预期结果

当我访问公共URL时，我希望能够看到部署的网站。

实际结果

相反，我看到一个新的主机页面，上面写着“嘿，.NET Core开发人员！您的应用程序服务已启动并正在运行。请继续执行下一步并部署代码”。

其他信息

应用服务似乎正在启动默认应用，因为启动我发布的应用时遇到问题。

我在应用程序服务常规配置中指定的启动命令是：

dotnet "SmartSAR.dll"

登录以启动App Service

2020-04-18 07:39:27.802 INFO  - Container smartsar_0_36ea601f for site smartsar initialized successfully and is ready to serve requests.
2020-04-18T07:39:25.664749049Z   _____
2020-04-18T07:39:25.664775249Z   /  _  \ __________ _________   ____
2020-04-18T07:39:25.664780549Z  /  /_\  \___   /  |  \_  __ \_/ __ \
2020-04-18T07:39:25.664799849Z /    |    \/    /|  |  /|  | \/\  ___/
2020-04-18T07:39:25.664803949Z \____|__  /_____ \____/ |__|    \___  >
2020-04-18T07:39:25.664808049Z         \/      \/                  \/
2020-04-18T07:39:25.664811949Z A P P   S E R V I C E   O N   L I N U X
2020-04-18T07:39:25.664815749Z
2020-04-18T07:39:25.664819349Z Documentation: http://aka.ms/webapp-linux
2020-04-18T07:39:25.664823149Z Dotnet quickstart: https://aka.ms/dotnet-qs
2020-04-18T07:39:25.664826849Z ASP .NETCore Version: 3.1.0
2020-04-18T07:39:25.664830549Z Note: Any data outside '/home' is not persisted
2020-04-18T07:39:25.727133075Z Running oryx -appPath /home/site/wwwroot -output /opt/startup/startup.sh -defaultAppFilePath /defaulthome/hostingstart/hostingstart.dll     -bindPort 8080 -userStartupCommand 'dotnet "SmartSAR.dll"'
2020-04-18T07:39:25.730817476Z Oryx Version: 0.2.20200114.13, Commit: 204922f30f8e8d41f5241b8c218425ef89106d1d, ReleaseTagName: 20200114.13
2020-04-18T07:39:25.737275979Z Cound not find build manifest file at '/home/site/wwwroot/oryx-manifest.toml'
2020-04-18T07:39:25.737697979Z Could not find operation ID in manifest. Generating an operation id...
2020-04-18T07:39:25.738149780Z Build Operation ID: 6b038e35-4bdc-4c95-ba56-af4ed38e0ce0
2020-04-18T07:39:26.610476848Z Writing output script to '/opt/startup/startup.sh'
2020-04-18T07:39:27.105207557Z Running user provided startup command...
2020-04-18T07:39:27.112012760Z   It was not possible to find any installed .NET Core SDKs
2020-04-18T07:39:27.112467060Z   Did you mean to run .NET Core SDK commands? Install a .NET Core SDK from:
2020-04-18T07:39:27.112892061Z       https://aka.ms/dotnet-download
2020-04-18T07:39:27.113473661Z WARNING: Startup command execution failed with exit code 145
2020-04-18T07:39:27.113786261Z Running the default application instead...
2020-04-18T07:39:27.447628502Z Hosting environment: Production
2020-04-18T07:39:27.448410002Z Content root path: /defaulthome/hostingstart/
2020-04-18T07:39:27.449102503Z Now listening on: http://[::]:8080

构建管道YAML

# ASP.NET Core (.NET Framework)
# Build and test ASP.NET Core projects targeting the full .NET Framework.
# Add steps that publish symbols, save build artifacts, and more:
# https://docs.microsoft.com/azure/devops/pipelines/languages/dotnet-core

trigger:
- master

pool:
  vmImage: 'windows-latest'

variables:
  solution: '**/*.sln'
  buildPlatform: 'Any CPU'
  buildConfiguration: 'Release'

steps:
- task: NuGetToolInstaller@1

- task: UseDotNet@2 
  displayName: ".NET Core 3.1.x"
  inputs:
    version: '3.1.x'
    packageType: sdk
- script: dotnet build --configuration $(buildConfiguration)
  displayName: 'dotnet build $(buildConfiguration)'

- task: NuGetCommand@2
  inputs:
    restoreSolution: '$(solution)'

- task: VSBuild@1
  inputs:
    solution: '$(solution)'
    msbuildArgs: '/p:DeployOnBuild=true /p:WebPublishMethod=Package /p:PackageAsSingleFile=true /p:SkipInvalidConfigurations=true /p:DesktopBuildPackageLocation="$(build.artifactStagingDirectory)\WebApp.zip" /p:DeployIisAppPath="Default Web Site"'
    platform: '$(buildPlatform)'
    configuration: '$(buildConfiguration)'

- task: VSTest@2
  inputs:
    platform: '$(buildPlatform)'
    configuration: '$(buildConfiguration)'

- task: PublishBuildArtifacts@1

生成的工件是一个包含WebApp.zip部署文件（以及相关文件）的放置。

据我所知，我需要启动的正在生成的dll是SmartSAR.dll。从构建日志中：

Building target "_CopyOutOfDateSourceItemsToOutputDirectory" partially, because some output files are out of date with respect to their input files.
  Copying file from "d:\a\1\s\SmartSAR\obj\Release\netcoreapp3.1\SmartSAR.exe" to "d:\a\1\s\SmartSAR\bin\Release\netcoreapp3.1\SmartSAR.exe".
CopyFilesToOutputDirectory:
  Copying file from "d:\a\1\s\SmartSAR\obj\Release\netcoreapp3.1\SmartSAR.dll" to "d:\a\1\s\SmartSAR\bin\Release\netcoreapp3.1\SmartSAR.dll".
  SmartSAR -> d:\a\1\s\SmartSAR\bin\Release\netcoreapp3.1\SmartSAR.dll
  Copying file from "d:\a\1\s\SmartSAR\obj\Release\netcoreapp3.1\SmartSAR.pdb" to "d:\a\1\s\SmartSAR\bin\Release\netcoreapp3.1\SmartSAR.pdb".

Answer 1

您是否已将Azure Web应用程序的general settings堆栈属性设置为.NET Core？

Answer 2

问题是我使用了为构建管道生成的默认YAML，但我没有注意到它针对的是Windows构建映像！ （我责怪睡眠不足。）

这是我用于最终工作管道的YAML：

trigger:
- main

pool:
  vmImage: 'ubuntu-latest'

variables:
  buildConfiguration: 'Release'

steps:

    - task: UseDotNet@2 
      displayName: ".NET Core 3.1.x"
      inputs:
        version: '3.1.x'
        packageType: sdk
    - script: dotnet build --configuration $(buildConfiguration)
      displayName: 'dotnet build $(buildConfiguration)'

    - task: DotNetCoreCLI@2
      displayName: "Test"
      inputs:
        command: test
        projects: '**/*tests/*.csproj'
        arguments: '--configuration $(buildConfiguration)'

    - task: DotNetCoreCLI@2
      displayName: "Publish"
      inputs:
        command: 'publish'
        publishWebProjects: true
        arguments: '-r linux-x64 --configuration $(BuildConfiguration) --output $(Build.ArtifactStagingDirectory)'
        zipAfterPublish: true

    - task: PublishBuildArtifacts@1
      displayName: "Upload Artifacts"
      inputs:
        pathtoPublish: '$(Build.ArtifactStagingDirectory)' 
        artifactName: 'WebApp'