响应状态代码不表示成功：401（未授权）- Azure Devops Feed ASP.NET Core 3.1 Docker Build

Question

我在这个论坛上发现了一些文章和 posts，涉及在使用 Docker 构建图像时无法授权 Azure 私有工件源的问题Azure 中的任务，这是可以理解的。

所以，我整理了一个 Dockerfile 来反映在线示例：

FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-buster-slim AS base
WORKDIR /app

FROM mcr.microsoft.com/dotnet/core/sdk:3.1-buster AS build
WORKDIR /src

EXPOSE 80

# The Personal Access Token arg
ARG NUGET_PAT

# Set environment variables
ENV NUGET_CREDENTIALPROVIDER_SESSIONTOKENCACHE_ENABLED true
ENV VSS_NUGET_EXTERNAL_FEED_ENDPOINTS '{"endpointCredentials": [{"endpoint":"https://pkgs.dev.azure.com/MY_FEED/nuget/v3/index.json", "username":"username", "password":"${NUGET_PAT}"}]}'

# install wget
RUN apt-get update && apt-get install -y wget 

# Get and install the Artifact Credential provider
RUN wget -O - https://raw.githubusercontent.com/Microsoft/artifacts-credprovider/master/helpers/installcredprovider.sh  | bash

COPY ["xxx.csproj", "."]
RUN dotnet restore -s "https://pkgs.dev.azure.com/MY_FEED/nuget/v3/index.json" -s "https://api.nuget.org/v3/index.json"

COPY . .
WORKDIR "/src"
RUN dotnet build "xxx.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "xxx.csproj" -c Release -o /app/publish

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

然后在 Azure 的构建参数文本框中我有这个：

NUGET_PAT=xxxxxxxxxxxxxxxxxxxxxxxxx

我还将 PAT 令牌设置为以下权限，如本论坛 post 中所述：

构建：阅读
已连接的服务器（访问端点）：已连接的服务器
打包（创建、读取、更新和删除提要和包）：阅读

我还设置了 PAT 以允许所有组织而不是我们的工作组，我尝试将 nuget.config 直接复制到容器中，但我最终得到的是 401未经授权。

我也将 username 设置为“用户名”，因为大多数示例都暗示不需要它。

我做错了什么？

Answer 1

您可以尝试以下格式，看看是否有效：

ENV VSS_NUGET_EXTERNAL_FEED_ENDPOINTS "{\"endpointCredentials\": [{\"endpoint\":\"https://pkgs.dev.azure.com/org/_packaging/MY_FEED/nuget/v3/index.json\", \"password\":\"${NUGET_PAT}\"}]}"

您还可以尝试另一种选择，请查看以下博客以了解解决方案 2：

https://medium.com/jtorrecilla-net/use-azure-artifacts-in-dotnet-restore-while-docker-build-7e017a439109

此解决方案基于使用构建过程中定义的变量动态构建 Nuget.Config 文件。例如：

Docker 文件:

FROM mcr.microsoft.com/dotnet/core/aspnet:2.2-stretch-slim AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

FROM microsoft/dotnet:2.2-sdk AS build
ARG ARTIFACTS_ENDPOINT
ARG ACCESS_TOKEN
ARG USER
WORKDIR /src
COPY / /src/Services/MyApi/
WORKDIR /src/Services/MyApi/
RUN echo "<?xml version='1.0' encoding='utf-8'?><configuration><packageSources><add key='MyFeed' value='$ARTIFACTS_ENDPOINT' /></packageSources><packageSourceCredentials><ByThey><add key='Username' value='$USER' /><add key='ClearTextPassword' value='$ACCESS_TOKEN' /></ByThey></packageSourceCredentials></configuration>" > NuGet.Config
RUN dotnet restore MyApi.csproj -nowarn:msb3202,nu1503

FROM build AS publish
RUN dotnet build MyApi.csproj --no-restore -c Release -o /app

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

CI yml文件：

variables:
- group: Artifacts
steps:
- task: Docker@1
  displayName: 'Build an image'
  inputs:
    command: Build an image
    azureSubscription: Devops
    azureContainerRegistry: '{"loginServer":"xxx.azurecr.io", "id" : "/subscriptions/xxx/resourceGroups/xxx-DEV/providers/Microsoft.ContainerRegistry/registries/xxx"}'
    dockerFile: src/Services/MyApi/Dockerfile
    imageName: $(Build.Repository.Name):$(Build.BuildId)
    arguments: '--build-arg ARTIFACTS_ENDPOINT="$(artifactsEndpoint)" --build-arg ACCESS_TOKEN="$(artifactsAccessToken)" --build-arg USER="xxx"'

Answer 2

这是在 Azure 管道中为我工作的最终 Dockerfile Docker build 和 push 任务：

FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-buster-slim AS base
WORKDIR /app

FROM mcr.microsoft.com/dotnet/core/sdk:3.1-buster AS build
WORKDIR /src

EXPOSE 80

# run the azure credential provider and let it do its magic
RUN curl -L https://raw.githubusercontent.com/Microsoft/artifacts-credprovider/master/helpers/installcredprovider.sh  | sh

# personal access token arg 
ARG NUGET_PAT

# link to azure feed arg
ARG AZURE_FEED

# set env var for azure credential provider
ENV VSS_NUGET_EXTERNAL_FEED_ENDPOINTS \
    "{\"endpointCredentials\": [{\"endpoint\":\"${AZURE_FEED}\", \"username\":\"docker\", \"password\":\"${NUGET_PAT}\"}]}"

# debug env vars to make sure things are getting set correctly
RUN printenv

# restore private and public nuget feed
COPY ["xxx.csproj", "."]
RUN dotnet restore -s "${AZURE_FEED}" -s "https://api.nuget.org/v3/index.json"

# build
COPY . .
WORKDIR "/src"
RUN dotnet build "xxx.csproj" -c Release -o /app/build

# publish
FROM build AS publish
RUN dotnet publish "xxx.csproj" -c Release -o /app/publish

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

我还发现最好在 Azure 中使用 AZURE_FEED 和 NUGET_PAT 创建一个变量组，这样个人访问令牌和提要就可以在其他管道之间共享。

响应状态代码不表示成功：401（未授权）- Azure Devops Feed ASP.NET Core 3.1 Docker Build

Response status code does not indicate success: 401 (Unauthorized) - Azure Devops Feed ASP.NET Core 3.1 Docker Build

docker

asp.net-core

azure-devops

azure-artifacts