在 DockerFile 的文件路径中插入字符串

Question

我有一个 Docker 文件，其开头如下：

ARG FILE_PATH

FROM mcr.microsoft.com/dotnet/aspnet:3.1 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

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

COPY ["${FILE_PATH}/src/NuGet.config", "src/"]

我这样使用 azure-cli 调用它：

$pathToSrc = "$(Build.SourcesDirectory)/My folder"

az acr build --build-arg "FILE_PATH=$pathToSrc" ...

这总是失败并显示消息：

COPY failed: file not found in build context or excluded by .dockerignore: stat src/NuGet.config: file does not exist

我试过变体，例如：

COPY [$FILE_PATH/src/NuGet.config, "src/"]
COPY ["FILE_PATH/src/NuGet.config", "src/"]

和

az acr build --build-arg "FILE_PATH='$pathToSrc'" ...

但总是以相同的消息结束。

有没有办法做到这一点。我运行在 Azure-devops 管道中的托管代理上。任务是任务：AzureCLI@2 使用 PowerShell Core 脚本。

Answer 1

这可能是相关的：

...after every FROM statements all the ARGs gets collected and are no longer available. Be careful with multi-stage builds.

试试这个：

FROM mcr.microsoft.com/dotnet/aspnet:3.1 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

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

ARG FILE_PATH

COPY ["${FILE_PATH}/src/NuGet.config", "src/"]

在 DockerFile 的文件路径中插入字符串

Interpolating strings in a file path in a DockerFile

string-interpolation

azure-cli

dockerfile

azure-devops