将Docker卷装载到主机路径

我需要从容器访问主机中的测试结果文件。我知道我需要创建一个在主机和容器之间映射的卷,如下所示,但是我没有得到任何写入主机的内容。

docker run --rm -it -v <host_directory_path>:<container_path> imagename

Dockerfile:

FROM microsoft/dotnet:2.1-sdk AS builder
WORKDIR /app
COPY ./src/MyApplication.Program/MyApplication.Program.csproj ./src/MyApplication.Program/MyApplication.Program.csproj
COPY nuget.config ./
WORKDIR ./src/MyApplication.Program/
RUN dotnet restore
WORKDIR /app
COPY ./src ./src
WORKDIR ./src/MyApplication.Program/
RUN dotnet build MyApplication.Program.csproj -c Release

FROM builder as tester
WORKDIR /app
COPY ./test/MyApplication.UnitTests/MyApplication.UnitTests.csproj ./test/MyApplication.UnitTests/MyApplication.UnitTests.csproj
WORKDIR ./test/MyApplication.UnitTests/
RUN dotnet restore
WORKDIR /app
COPY ./test ./test
WORKDIR ./test/MyApplication.UnitTests/
RUN dotnet test /p:CollectCoverage=true /p:CoverletOutputFormat=cobertura
ENTRYPOINT ["dotnet", "reportgenerator", "-reports:coverage.cobertura.xml", "-targetdir:codecoveragereports", "-reportTypes:htmlInline"]

入口点的命令工作正常。它正在将输出写入 MyApplication.UnitTests/codecoveragereports 目录,但不到主机目录。

我的Docker运行如下:

docker run --rm -it -v /codecoveragereports:/app/test/MyApplication.UnitTests/codecoveragereports routethink.tests:latest

我可能做错什么了?