将文件复制到 dockerfile 不起作用，ls 显示文件在那里

Question

目前我真的很盲目，不明白我的问题是什么，我希望你的一双新眼睛可以帮助我。

我有以下 Dockerfile

ARG base_image=mcr.microsoft.com/dotnet/runtime
ARG base_image_version=8.0
ARG port=80
# Use a runtime image as the base image
#FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS runtime
FROM ${base_image}:${base_image_version} AS runtime
# The name of DLL which needs to be used for starting the application
ARG DLL_NAME
ENV env_dll_name=${DLL_NAME}

# Set the working directory in the container
WORKDIR /app

# Copy the published application files
COPY --chown=$APP_UID:$APP_UID . ./

# Change ownership of the files to the dedicated user
RUN chown -R $APP_UID:$APP_UID /app

# Switch to the dedicated user
USER $APP_UID

# List the contents of the /app directory to verify the files copied
RUN ls -la /app

# List the DLL to be executed
RUN echo "DLL to execute: ${env_dll_name}"
# Expose the port that the application will listen on
EXPOSE ${port}

RUN ls -la .

# Define the entry point for the container
ENTRYPOINT ["sh", "-c", "dotnet ${env_dll_name}"]

Azure DevOps Pipeline 运行以下任务

- script: |
    pwd
    ls -la .
    ls -la $(Build.ArtifactStagingDirectory)
    ls -la $(Build.ArtifactStagingDirectory)/PublishOutput

- task: Docker@2   displayName: 'Docker - Build'   inputs:
    command: build
    #containerRegistry: $(ACR_LOGIN_SERVER)
    repository: $(ACR_LOGIN_SERVER)/$(dockerImageName)
    Dockerfile: '$(Build.Repository.LocalPath)/Dockerfile'  # Path to your Dockerfile
    buildContext: '$(Build.ArtifactStagingDirectory)/PublishOutput'
    arguments: '--progress=plain --build-arg DLL_NAME=$(project_name).dll'
    tags: |-
      $(releaseVersion)
      latest

RUN ls -la

行显示预期的文件夹内容。

但是当容器在 AKS 上启动时，它会失败，因为找不到 dll。

我已将入口点替换为

CMD ["sh", "-c", "ls -la /app && sleep 3600"]

并且已经只看到以下

drwxrwxrwx 3 root root 4096 Jul  8 17:37 .
drwxr-xr-x 1 root root 4096 Jul  9 04:38 ..
drwxr-xr-x 2 root root 4096 Jul  8 17:37 ..2024_07_08_17_37_44.4116578998
lrwxrwxrwx 1 root root   32 Jul  8 17:37 ..data -> ..2024_07_08_17_37_44.4116578998
lrwxrwxrwx 1 root root   23 Jul  8 17:37 appsettings.json -> ..data/appsettings.json

我做错了什么？ 请帮忙

编辑： dotnet 构建结果由

生成

- task: DotNetCoreCLI@2
  inputs:
    command: 'publish'
    projects: |
      **/*.csproj
      !**/*Test.csproj
      !**/*Tests.csproj
    arguments: '--configuration $(buildConfiguration) --output $(Build.ArtifactStagingDirectory)/PublishOutput'
    zipAfterPublish: false
    modifyOutputPath: false
    publishWebProjects: false
  displayName: 'dotnet - Publish Project'

Answer 1

您的 Dockerfile 存在于

$(Build.Repository.LocalPath)

中（例如：

/home/vsts/work/1/s

），但 dll 内置于

$(build.ArtifactStagingDirectory)/PublishOutput

中，这是不同的。然后您将

buildContext

指定到该目录，该目录通常应与 Dockerfile 位于同一目录。

因此，在完成

DotNetCoreCLI@2

发布任务后，您可以将dll复制到Dockerfile所在的工作目录中：

- script: |
    pwd
    ls -la .
    cp $(build.ArtifactStagingDirectory)/PublishOutput/*.dll .

我评论了

repository

和

buildContext

Docker@2

任务：

- task: Docker@2   
  displayName: 'Docker - Build'   
  inputs:
    command: build
    #containerRegistry: $(ACR_LOGIN_SERVER)
    #repository: $(ACR_LOGIN_SERVER)/$(dockerImageName)
    Dockerfile: '$(Build.Repository.LocalPath)/Dockerfile'  # Path to your Dockerfile
    #buildContext: '$(Build.ArtifactStagingDirectory)/PublishOutput'
    arguments: '--progress=plain --build-arg DLL_NAME=$(project_name).dll'
    tags: |-
      $(releaseVersion)
      latest

可以在docker中获取dll文件：