docker build 失败，访问被拒绝或存储库不存在

Question

我的码头文件

FROM microsoft/aspnetcore-build AS build-env
WORKDIR /app

# copy csproj and restore as distinct layers
COPY *.csproj ./
RUN dotnet restore

# copy everything else and build
COPY . ./
RUN dotnet publish -c Release -o output

# build runtime image
FROM microsoft/aspnetcore
WORKDIR /app
COPY --from=build-env /app/output .
ENTRYPOINT ["dotnet", "LetsKube.dll"]

在尝试执行上述操作时会报错

failed to solve with frontend dockerfile.v0: failed to create LLB definition: pull access denied, repository does not exist or may require authorization: server message: insufficient_scope: authorization failed

我尝试过的步骤：

1. 将基础更改为 mcr.microsoft.com/dotnet/core/sdk:2.2

如何解决这个问题并为 aspnet 2.0 框架应用程序构建和映像？

Answer 1

您引用的存储库“microsoft/aspnetcore-build”和“microsoft/aspnetcore”是这里的问题，因为它们在公共 docker hub 中不存在/不可用。

您可以检查 .NET SDK here 的可用标签。

您可以检查 .NET Runtime here 的可用标签。

根据你的 Dockerfile，你可以尝试这样的事情：

FROM mcr.microsoft.com/dotnet/sdk:2.1.816-stretch AS build-env
WORKDIR /app

# copy csproj and restore as distinct layers
COPY *.csproj ./
RUN dotnet restore

# copy everything else and build
COPY . ./
RUN dotnet publish -c Release -o output

# build runtime image
FROM mcr.microsoft.com/dotnet/aspnet:2.1.28-stretch-slim
WORKDIR /app
COPY --from=build-env /app/output .
ENTRYPOINT ["dotnet", "LetsKube.dll"]

您还可以开始尝试附加链接中列出的不同图片，以便找到更适合您的图片。