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# Multi-stage Docker build, test and package
# Based on https://github.com/dotnet/dotnet-docker/blob/master/samples/dotnetapp/dotnet-docker-unit-testing.md
ARG DOTNET_VERSION = 3 .0
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# STAGE: Base build and test
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FROM mcr.microsoft.com/dotnet/core/sdk:$DOTNET_VERSION AS build
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WORKDIR /app
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# Copy csproj and restore as distinct layers. This caches a Docker layer with downloaded
# dependencies, making the next build faster if only code files have been changed.
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COPY K2Bridge/*.csproj ./
RUN dotnet restore
# Copy everything else and build
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COPY . ./
RUN dotnet publish K2Bridge -c Release -o out
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# Test for lint issues, UnitTests project causes the main to build too
RUN dotnet build K2Bridge.Tests.UnitTests -p:TreatWarningsAsErrors= true -warnaserror
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# Run unit tests. "exit 0" prevents failing build on test failures.
# (dotnet test returns a non-zero exit code on test failures, which would stop the docker build otherwise)
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RUN dotnet test K2Bridge.Tests.UnitTests --no-build --logger "trx;LogFileName=/app/TestResult.xml" /p:CollectCoverage= true /p:CoverletOutputFormat= cobertura ; exit 0
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# Fail build if no test result file produced (indicates an issue with the test runner itself)
RUN test -s /app/TestResult.xml
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# Build end2end tests
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RUN dotnet build K2Bridge.Tests.End2End -p:TreatWarningsAsErrors= true -warnaserror
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# STAGE: Build image for executing End2End tests in Kubernetes
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FROM mcr.microsoft.com/dotnet/core/sdk:$DOTNET_VERSION AS end2endtest
COPY --from= build /app/K2Bridge ./K2Bridge
COPY --from= build /app/K2Bridge.Tests.End2End ./K2Bridge.Tests.End2End
# Create a FIFO pipe allowing to fetch test outputs before container terminates
RUN mkfifo /test-result-pipe
# Run the created image to execute End2End tests
CMD [ "bash" , "-x" , "-c" , "dotnet test K2Bridge.Tests.End2End '--logger:trx;LogFileName=/app/TestResult.xml' ; cat /app/TestResult.xml > /test-result-pipe ; sleep 5" ]
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# STAGE: Build runtime image
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FROM mcr.microsoft.com/dotnet/core/aspnet:$DOTNET_VERSION AS runtime
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WORKDIR /app
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COPY --from= build /app/out .
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ENTRYPOINT [ "dotnet" , "K2Bridge.dll" ]