Debug with docker containers #185

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1. MichaelSimons

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   on Jan 27, 2017
2. MichaelSimons commented on Jan 27, 2017

   

   MichaelSimons

   on Jan 27, 2017

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   @galvesribeiro, Good question. The yo docker experience is definitely out of date. We currently don't have any guidance on this. Let me dig around a little and see what I can come up with.

   👍React with 👍1Reacted by Gutemberg Ribeiro
3. galvesribeiro commented on Jan 27, 2017

   

   galvesribeiro

   on Jan 27, 2017

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   Thanks @MichaelSimons I appreciate that. I'm struggling to get it to work here. Even if I use VS2017 which has that Add Docker Support function, it works, but there is no docs on how that works whatsoever so I can't try reproduce it on VSCode. Looking forward to hear from you, thanks!
4. MichaelSimons commented on Jan 27, 2017

   

   MichaelSimons

   on Jan 27, 2017

   Last edited by MichaelSimons

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   For my own exercise, I went through the yo docker experience. Even though it was out of date, I was able to get it working with a few tweaks.

   1. mkdir DockerDebugApp
   2. cd DockerDebugApp
   3. dotnet new -t Console1.1
   4. yo docker (used defaults)
   5. Ignore project.json file does not exist error
   6. Open DockerDebugAdd in VSCode
   7. add the following to the csproj

            <ItemGroup>
        <None Update="Dockerfile">
          <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
        </None>
        <None Update="Dockerfile.Debug">
          <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
        </None>
        <None Update="docker-compose.yml">
          <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
        </None>
        <None Update="docker-compose.debug.yml">
          <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
        </None>
      </ItemGroup>
      

   8. Update the two Dockerfiles to reference the appropriate base images
      a. microsoft/dotnet:1.1-sdk-msbuild
      b. microsoft/dotnet:1.1-runtime
   9. Update the Dockerfile.debug to install unzip before the GetClrDbg logic

          RUN apt-get update \
          && apt-get install -y --no-install-recommends \
              unzip \
          && rm -rf /var/lib/apt/lists/*
      

   10. Set the $framework variables of the dockerTask script to match your csproj
       a. netcoreapp1.1
   11. dotnet restore -r debian.8-x64
   12. Build
   13. Set breakpoint in program
   14. F5
5. galvesribeiro commented on Jan 27, 2017

   

   galvesribeiro

   on Jan 27, 2017

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   Was about to ping you... I did similar thing and it work :)

   However, that is not close to what we have with VS2017, where you can run/debug multiple projects using the solution-level docker-compose files...
6. MichaelSimons commented on Jan 31, 2017

   

   MichaelSimons

   on Jan 31, 2017

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   I moved this to microsoft/generator-docker#130 since the underlying issue is not specific to the Docker image rather it is with the broken yo docker experience.

   👍React with 👍1Reacted by Gutemberg Ribeiro
7. MichaelSimons

   closed this as completedon Jan 31, 2017
8. dasMulli commented on Jan 31, 2017

   

   dasMulli

   on Jan 31, 2017

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   @MichaelSimons most of the fuss is about downloading clrdbg into the containers. Does it make sense to create a public image that already includes the correct debugger? (e.g. microsoft/dotnet:1.1-sdk-msbuild-debug).

   👍React with 👍1Reacted by pvasek
9. galvesribeiro commented on Jan 31, 2017

   

   galvesribeiro

   on Jan 31, 2017

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   @dasMulli if you look at simple apps with a single container yes, people don't know that the SDK doesn't come with the debugger. However, when you have multiple containers (i.e. docker-compose based projects) the problem goes far from just that. Look at the new issue @MichaelSimons just created.