Install dotnet core tool Dockerfile

Question

I have an .net core application where I would like to make a SonarBuild inside a container.

So I have a Dockerfile like this:

FROM microsoft/aspnetcore-build as build-env

WORKDIR /src

COPY question-metrics-api/question-metrics-api.csproj question-metrics-api/
COPY question-metrics-data/question-metrics-data.csproj question-metrics-data/
COPY question-metrics-domain/question-metrics-domain.csproj question-metrics-domain/
COPY tests/question-metrics-domain-tests/question-metrics-domain-tests.csproj tests/question-metrics-domain-tests/

RUN dotnet restore tests/question-metrics-domain-tests
RUN dotnet restore question-metrics-api/question-metrics-api.csproj

COPY . .

#Run tests
RUN dotnet test tests/question-metrics-domain-tests/question-metrics-domain-tests.csproj

#Begin Sonar
RUN dotnet tool install --global dotnet-sonarscanner
RUN dotnet sonarscanner begin /k:"question-metrics-api" /d:sonar.host.url="http://sonarqube:9000" /d:sonar.login="7ed84e09a17a31e783fa8522d876e27fe4624977"
RUN dotnet build
RUN dotnet sonarscanner end /d:sonar.login="7ed84e09a17a31e783fa8522d876e27fe4624977"
#End Sonar

RUN dotnet publish question-metrics-api/question-metrics-api.csproj -c Release -o publish

FROM microsoft/aspnetcore as runtime-env

COPY --from=build-env src/question-metrics-api/publish .
EXPOSE 80
ENTRYPOINT [ "dotnet", "question-metrics-api.dll" ]

When I try to build this dockerfile I got an error:

Step 11/19 : RUN dotnet tool install --global dotnet-sonarscanner
 ---> Running in 78719975f3b0
No executable found matching command "dotnet-tool"

How can I install dotnet tool from aspnetcore-build image?

Update

Ok, If I use the base image microsoft/dotnet:2.1-sdk I don't get anymore No executable found matching command "dotnet-tool" error, now I get No executable found matching command "dotnet-sonarscanner"

How can I use sonarscanner tool in this scenario?

Answer 1

As I have read in this thread: https://github.com/dotnet/dotnet-docker/issues/520, we can run a dotnet tool global command inside a container setting the following line:

ENV PATH="${PATH}:/root/.dotnet/tools"

So my final Dockerfile is like:

FROM microsoft/dotnet:2.1-sdk as build-env

WORKDIR /src

COPY question-metrics-api/question-metrics-api.csproj question-metrics-api/
COPY question-metrics-data/question-metrics-data.csproj question-metrics-data/
COPY question-metrics-domain/question-metrics-domain.csproj question-metrics-domain/
COPY tests/question-metrics-domain-tests/question-metrics-domain-tests.csproj tests/question-metrics-domain-tests/

RUN dotnet restore tests/question-metrics-domain-tests
RUN dotnet restore question-metrics-api/question-metrics-api.csproj

COPY . .

#Run tests
RUN dotnet test tests/question-metrics-domain-tests/question-metrics-domain-tests.csproj

#Begin Sonar
RUN dotnet tool install -g dotnet-sonarscanner

ENV PATH="${PATH}:/root/.dotnet/tools"

RUN dotnet sonarscanner begin /k:"question-metrics-api" /d:sonar.host.url="http://sonarqube:9000" /d:sonar.login="7ed84e09a17a31e783fa8522d876e27fe4624977"
RUN dotnet build
RUN dotnet sonarscanner end /d:sonar.login="7ed84e09a17a31e783fa8522d876e27fe4624977"

Hope that helps someone!