Chapter 6 - docker build failing

[dhart3545]

This command is failing:
docker build -f Codebreaker.GameAPIs\Dockerfile . -t codebreaker/gamesapi.3.5.1

I think it has to do with this error:
warning NU1902: Package 'OpenTelemetry.Instrumentation.AspNetCore' 1.6.0 has a known moderate severity vulnerability, GHSA-vh2m-22xx-q94f [/src/Codebreaker.GameAPIs/Codebreaker.GameAPIs.csproj]

But updating the NuGet package does not fix. Any ideas?

[christiannagel]

@dhart3545 thanks for the information! I'll look into this!

Did you mean chapter 5?

[christiannagel]

Found an issue (with chapter 5 where I started with Docker). The issue is because I changed to central package management (CPM). The docker build does not run because it also needs Directory.Packages.props for building the image.
This either

• requires the version of the packages in the project file, or
• the Directory.Packages.props file in the project folder, or
• Directory.Packages.props copied over within the Docker command in the Dockerfile.

I create an issue from the discussion and create a fix.

[dhart3545]

I tried adding the package versions to the .csproj files created conflicts with other services and turned into a bit of a nightmare, which I rolled back. Wasted an hour of my day.

[christiannagel]

I tried adding the package versions to the .csproj files created conflicts with other services and turned into a bit of a nightmare, which I rolled back. Wasted an hour of my day.

Sorry to read that. Doing this, did you turn of central package management with the project?

<PropertyGroup>
  <ManagePackageVersionsCentrally>false</ManagePackageVersionsCentrally>
</PropertyGroup>

Disabling Central Package Management

I'm working on this version - I succeeded in copying the Directory.Packages.props file to the games-api project, and adding the Docker COPY command:

# This stage is used to build the service project
FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
ARG BUILD_CONFIGURATION=Release
WORKDIR /src
# Copy the central package management file
COPY ["Directory.Packages.props", "."]
# Copy the project file and restore dependencies
COPY ["Codebreaker.GameAPIs/Codebreaker.GameAPIs.csproj", "Codebreaker.GameAPIs/"]
RUN dotnet restore "./Codebreaker.GameAPIs/Codebreaker.GameAPIs.csproj"
COPY . .
WORKDIR "/src/Codebreaker.GameAPIs"
RUN dotnet build "./Codebreaker.GameAPIs.csproj" -c $BUILD_CONFIGURATION -o /app/build

I'm working on an update with issue #224

[christiannagel]

Related to microsoft/DockerTools#439

[christiannagel]

@dhart3545, creating the Dockerfile using Visual Studio, set the Docker Build Context to the root folder of the repository.

This creates this Dockerfile for the Codebreaker.GameAPIs project (including the COPY command for Directory.Packages.props):

# This stage is used when running from VS in fast mode (Default for Debug configuration)
FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS base
USER $APP_UID
WORKDIR /app
EXPOSE 8080


# This stage is used to build the service project
FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
ARG BUILD_CONFIGURATION=Release
WORKDIR /src
COPY ["Directory.Packages.props", "."]
COPY ["ch05/FinalDocker/Codebreaker.GameAPIs/Codebreaker.GameAPIs.csproj", "ch05/FinalDocker/Codebreaker.GameAPIs/"]
RUN dotnet restore "./ch05/FinalDocker/Codebreaker.GameAPIs/Codebreaker.GameAPIs.csproj"
COPY . .
WORKDIR "/src/ch05/FinalDocker/Codebreaker.GameAPIs"
RUN dotnet build "./Codebreaker.GameAPIs.csproj" -c $BUILD_CONFIGURATION -o /app/build

# This stage is used to publish the service project to be copied to the final stage
FROM build AS publish
ARG BUILD_CONFIGURATION=Release
RUN dotnet publish "./Codebreaker.GameAPIs.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false

# This stage is used in production or when running from VS in regular mode (Default when not using the Debug configuration)
FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "Codebreaker.GameAPIs.dll"]

Then, with the current directory set to the project, use:

docker build -f Codebreaker.GameAPIs\Dockerfile ../../.. -t codebreaker/gamesapi.3.5.1

Does this work for you?