Consolidate conditional install steps into one

Docker/Dockerfile

@@ -59,9 +59,6 @@ ENV LANG=en_US.UTF-8 \
 # TODO: Build could be optimized by combining RUN layers, but that makes troubleshooting more difficult
 
 
-# Conditionally install SDK and Debug tools, else just runtime
-ARG DBGTOOL_INSTALL=""
-
 # Install .NET 6 Runtime
 # https://docs.microsoft.com/en-us/dotnet/core/install/linux-ubuntu
 # TODO: Substitute ubuntu with $(lsb_release -si | tr '[:upper:]' '[:lower:]')
@@ -72,24 +69,24 @@ ENV DOTNET_RUNNING_IN_CONTAINER=true \
     DOTNET_USE_POLLING_FILE_WATCHER=true \
     NUGET_XMLDOC_MODE=skip
 
+# Conditionally install SDK and Debug tools, else just runtime
+# Test for empty or not empty string using -z or -n
+ARG DBGTOOL_INSTALL=""
+
 RUN wget https://packages.microsoft.com/config/ubuntu/$(lsb_release -sr)/packages-microsoft-prod.deb \
     && dpkg -i packages-microsoft-prod.deb \
     && apt-get update \
     && if [ -n "$DBGTOOL_INSTALL" ] ; then \
-         apt-get install -y dotnet-sdk-6.0 ; \
+         apt-get install -y dotnet-sdk-6.0 \
+         && wget https://aka.ms/getvsdbgsh \
+         && sh getvsdbgsh -v latest -l /vsdbg \
+         && rm getvsdbgsh ; \
        else \
          apt-get install -y dotnet-runtime-6.0 ; \
        fi \
     && rm packages-microsoft-prod.deb \
     && dotnet --info
 
-# Install remote debug tools
-RUN if [ -n "$DBGTOOL_INSTALL" ] ; then \
-      wget https://aka.ms/getvsdbgsh \
-      && sh getvsdbgsh -v latest -l /vsdbg \
-      && rm getvsdbgsh ; \
-    fi
-
 
 # Install MediaInfo
 # https://mediaarea.net/en/MediaInfo/Download/Ubuntu

PlexCleaner/Program.cs

@@ -54,6 +54,7 @@ private static void WaitForDebugger()
             {
                 Thread.Sleep(100);
             }
+            Console.WriteLine("Debugger attached.");
 
             // Break into the debugger
             System.Diagnostics.Debugger.Break();

README.md

@@ -24,8 +24,10 @@ Docker images are published on [Docker Hub](https://hub.docker.com/u/ptr727/plex
 ## Release Notes
 
 - Version 2.9:
-  - Added `--debug` option that will wait for a debugger to be attached on launch.
-  - `develop` docker builds will install the .NET SDK and the VsDbg .NET Debugger.
+  - Added remote docker container debug support.  
+    - `develop` tagged docker builds use the `Debug` build target, and will now install the .NET SDK and the [VsDbg](https://aka.ms/getvsdbgsh) .NET Debugger.
+    - Added a `--debug` commandline option that will wait for a debugger to be attached on launch.
+    - Remote debugging in docker over SSH can be done using [VSCode](https://github.com/OmniSharp/omnisharp-vscode/wiki/Attaching-to-remote-processes) or [Visual Studio](https://docs.microsoft.com/en-us/visualstudio/debugger/attach-to-process-running-in-docker-container?view=vs-2022).
 - See [Release History](./HISTORY.md) for older Release Notes.
 
 ## Questions or Issues