Azure管道未将标签应用于Docker构建容器

Question

正如标题所说，我正在尝试将标签应用于我的Docker容器，以便我可以在管道中进一步提及所述容器。我要追求的最终结果是能够从容器中复制测试结果并发布并显示这些结果。

azure-pipeline.yml

# Docker
# Build a Docker image
# https://learn.microsoft.com/azure/devops/pipelines/languages/docker

trigger:
- main
- develop

resources:
- repo: self

variables:
  tag: '$(Build.BuildId)'

stages:
- stage: Build
  displayName: Build image
  jobs:
  - job: Build
    displayName: Build
    pool:
      name: default
    steps:
    - task: Docker@2
      displayName: Build an image
      inputs:
        command: build
        arguments: '--build-arg BuildId=$(Build.BuildId)'
        dockerfile: '$(Build.SourcesDirectory)/Dockerfile'
        tags: |
          $(tag)
    - powershell: |
        $id=docker images --filter "label=test=$(Build.BuildId)" -q | Select-Object -First 1
        docker create --name testcontainer $id
        docker cp testcontainer:/testresults ./testresults
        docker rm testcontainer
      displayName: 'Copy test results'
    - task: PublishTestResults@2
      displayName: 'Publish test results'
      inputs:
        testResultsFormat: 'xUnit'
        testResultsFiles: '**/*.trx'
        searchFolder: '$(System.DefaultWorkingDirectory)/testresults'

Dockerfile

#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.

FROM mcr.microsoft.com/dotnet/aspnet:6.0-bullseye-slim-amd64 AS base
WORKDIR /app
EXPOSE 80

FROM mcr.microsoft.com/dotnet/sdk:6.0-bullseye-slim-amd64 AS build
WORKDIR /src
COPY ["Forecast/Forecast.csproj", "Forecast/"]
WORKDIR "/src/Forecast"
RUN dotnet restore "Forecast.csproj"
COPY Forecast/ .
RUN dotnet build "Forecast.csproj" -c Release -o /app/build

FROM build AS publish
WORKDIR /src
RUN dotnet publish "Forecast/Forecast.csproj" --no-restore -c Release -o /app/publish

FROM build as test
ARG BuildId
LABEL test=${BuildId}
WORKDIR /src
COPY ["ForecastXUnitTest/ForecastXUnitTest.csproj", "ForecastXUnitTest/"]
WORKDIR "/src/ForecastXUnitTest"

RUN dotnet restore "ForecastXUnitTest.csproj"
COPY ForecastXUnitTest/ .
RUN dotnet build "ForecastXUnitTest.csproj" -c Release -o /app
RUN dotnet test -c Release --results-directory /testresults --logger "trx;LogFileName=test_results.trx" "ForecastXUnitTest.csproj"

FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "Forecast.dll"]

I can see that the label hasn't been applied upon inspection of the build steps. powerShell专门针对行docker create -name testContainer $ id变量$ id是空的，并且告诉我标签永远不会申请了，所以我无法进一步走。

Answer 1

在启用dockerbuildkit参数中的templates/steps/build-docker.yml@templates中的参数之后，我经历了同一问题。如建议在这里测试到buildArguments参数。

Answer 2

我弄清楚是什么原因引起了我的问题。 Docker在构建和做事时最终以Cache'd Ephemeral容器图像。

有了这些，Docker不再运行这些步骤，因此在我在步骤中添加的途中，但随着构建之前的内容，我从后续的呼叫中没有得到任何东西。

最重要的是，我是指从中使用指令的先前图像，该图像阻止了我的目录被发现。