AWS Codebuild“名为 '3.1' 的 dotnet 的未知运行时版本此构建映像具有以下版本：2.2”

如何解决AWS Codebuild“名为 '3.1' 的 dotnet 的未知运行时版本此构建映像具有以下版本：2.2”

我使用代码管道线来构建和部署 - 从 github 拉取并部署到 fargate 容器 - 在代码构建中构建 dotnet 应用程序时，我遇到了这个错误。相当难倒。有没有人知道为什么它认为我的应用程序是 dotnet 2.2？

这是一个全新的管道

[Container] 2021/05/20 05:54:31 Waiting for agent ping
[Container] 2021/05/20 05:54:33 Waiting for DOWNLOAD_SOURCE
[Container] 2021/05/20 05:54:34 Phase is DOWNLOAD_SOURCE
[Container] 2021/05/20 05:54:34 CODEBUILD_SRC_DIR=/codebuild/output/src177986340/src
[Container] 2021/05/20 05:54:34 YAML location is /codebuild/output/src177986340/src/config/buildspec.yml
[Container] 2021/05/20 05:54:34 No commands found for phase name: install
[Container] 2021/05/20 05:54:34 Processing environment variables
[Container] 2021/05/20 05:54:35 Selecting 'dotnet' runtime version '3.1' based on manual selections...
[Container] 2021/05/20 05:54:35 Phase complete: DOWNLOAD_SOURCE State: Failed
[Container] 2021/05/20 05:54:35 Phase context status code: YAML_FILE_ERROR Message: UnkNown runtime version named '3.1' of dotnet. This build image has the following versions: 2.2

我的 dockerfile 指向 3.1

FROM mcr.microsoft.com/dotnet/sdk:5.0 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 out

# Build runtime image
FROM mcr.microsoft.com/dotnet/aspnet:3.1
workdir /app
copY --from=build-env /app/out .
ENTRYPOINT ["dotnet","user-bff.dll"]

我的构建规范指向 3.1

version: 0.2

phases:
  install:
    runtime-versions:
      dotnet: 3.1
  pre_build:
    commands:
      - cd code/
      - echo Logging in to Amazon ECR
      - $(aws ecr get-login --region $AWS_DEFAULT_REGION --no-include-email)
      - IMAGE_URI="${REPOSITORY_URI}:latest"
  build:
    commands:
      - echo Build started on `date`
      - echo Building the Docker image...
      - docker build --tag "$IMAGE_URI"
      - docker tag $REPOSITORY_URI:latest $REPOSITORY_URI:latest

  post_build:
    commands:
      - echo Build completed on `date`
      - echo Push the latest Docker Image...
      - docker push "$IMAGE_URI"
      - printf '[{"name":"App","imageUri":"%s"}]' "$IMAGE_URI" > images.json
artifacts:
  files: images.json

我的 dotnet 核心应用程序肯定是 3.1

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>netcoreapp3.1</TargetFramework>
    <AspNetCoreHostingModel>InProcess</AspNetCoreHostingModel>
    <RootNamespace>user_bff</RootNamespace>
  </PropertyGroup>

  <ItemGroup>
    <packagereference Include="AWSSDK.SimpleSystemsManagement" Version="3.3.106" />
    <packagereference Include="Microsoft.EntityFrameworkCore" Version="3.1.0" />
    <packagereference Include="Microsoft.EntityFrameworkCore.Design" Version="3.1.0">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </packagereference>
    <packagereference Include="MysqL.Data" Version="8.0.17" />
    <packagereference Include="MysqL.Data.EntityFrameworkCore" Version="8.0.17" />
    <packagereference Include="Amazon.Extensions.Configuration.SystemsManager" Version="1.2.0" />
  </ItemGroup>
  
</Project>

解决方法

从 Amazon Linux 2 x86_64 标准：1.0 迁移到 Amazon Linux 2 x86_64 标准：3.0 修复了这个问题！

,

基于评论。

该问题是由使用不支持 dotnet 3.1 的旧运行时映像版本 Amazon Linux 2 x86_64 standard:1.0 引起的。如 AWS docs 中所列，只有以下版本支持 dotnet 3.1：

• 亚马逊 Linux 2 x86_64 标准：3.0

• Amazon Linux 2 AArch64 标准：2.0

• Ubuntu 标准：4.0

• Ubuntu 标准：5.0

因此，解决方案是将映像版本升级到 Amazon Linux 2 x86_64 standard:3.0。