Concurrency Issue with dotnet restore in Multi-Stage Docker Build

[dobri-popov-tiebreak-solutions]

We are experiencing a concurrency issue when running dotnet restore in a multi-stage Docker build. The issue occurs when multiple independent dotnet restore steps are executed simultaneously, leading to file access conflicts in the shared NuGet package cache directory (/root/.nuget/packages). We prefer to restore these solutions in parallel, as we need to handle tens of solutions, and performance is a critical factor.

When executing docker build -f build.Dockerfile, the following errors appear:

/usr/share/dotnet/sdk/8.0.405/NuGet.targets(174,5): error : Could not find file '/root/.nuget/packages/system.runtime.interopservices/4.1.0/shgqghmt.ntf'. [/src/Utilities/Utilitiessln]
/usr/share/dotnet/sdk/8.0.405/NuGet.targets(174,5): error : Could not find file '/root/.nuget/packages/microsoft.extensions.dependencymodel/1.1.2/2vyfq0a1.tgs'. [/src/Core/Core.sln]

To Reproduce

#syntax=docker/dockerfile:1.7-labs

FROM mcr.microsoft.com/dotnet/sdk:8.0 AS base-build
WORKDIR /src
COPY ["nuget.config", ""]
COPY ["Directory.Build.props", ""]
COPY ["Directory.Packages.props", ""]

FROM base-build AS core-restore
COPY --parents Core/**/*.csproj Core/**/*.sln ./
RUN --mount=type=cache,target=/root/.nuget/packages \
    dotnet restore "Core/Core.sln" --packages /root/.nuget/packages

FROM base-build AS data-restore
COPY --parents Data/**/*.csproj Data/**/*.sln ./
RUN --mount=type=cache,target=/root/.nuget/packages \
    dotnet restore "Data/Data.sln" --packages /root/.nuget/packages

FROM base-build AS utilities-restore
COPY --parents Utilities/**/*.csproj Utilities/**/*.sln ./
RUN --mount=type=cache,target=/root/.nuget/packages \
    dotnet restore "Utilities/Utilities.sln" --packages /root/.nuget/packages

Logs

[core-restore 2/4] RUN --mount=type=cache,target=/root/.nuget/packages     dotnet restore "Core/Core.sln" --packages /root/.nuget/packages:
4.703   Determining projects to restore...
14.58   Restored /src/Core/Proj1/Proj1.csproj (in 1.32 sec).
18.78 /usr/share/dotnet/sdk/8.0.405/NuGet.targets(174,5): error : Could not find file '/root/.nuget/packages/microsoft.extensions.dependencymodel/1.1.2/2vyfq0a1.tgs'. [/src/Core/Core.sln]
------
------
 > [utilities-restore 2/2] RUN --mount=type=cache,target=/root/.nuget/packages     dotnet restore "Utilities/Utilities.sln" --packages /root/.nuget/packages:
4.524   Determining projects to restore...
8.490   Restored /src/Utilities/Proj1.csproj (in 1.72 sec).
13.36   Restored /src/Utilities/Proj2.csproj (in 6.56 sec).
13.65   Restored /src/Utilities/Proj3.csproj (in 6.91 sec).
13.67   Restored /src/Utilities/Proj4.csproj (in 6.92 sec).
18.62 /usr/share/dotnet/sdk/8.0.405/NuGet.targets(174,5): error : Could not find file '/root/.nuget/packages/system.runtime.interopservices/4.1.0/shgqghmt.ntf'. [/src/Utilities/Utilitiessln]
------
ERROR: failed to solve: process "/bin/sh -c dotnet restore \"Utilities/Utilities.sln\" --packages /root/.nuget/packages" did not complete successfully: exit code: 1

[dotnet-policy-service]

Thanks for creating this issue! We believe this issue is related to NuGet tooling, which is maintained by the NuGet team. Thus, we closed this one and encourage you to raise this issue in the NuGet repository instead. Don’t forget to check out NuGet’s contributing guide before submitting an issue!

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