Add container for server work

README.md

@@ -2,6 +2,27 @@
 
 TODO diagram
 
-TODO note: NO package init() functions
+TODO Style notes
-Dynamic behaviour must be explicit
+- NO package init() functions
- 
+- Dynamic behaviour must be explicit
+ 
+## cross-compile server on host, run it in container 
+1.  build server on host
+
+        GOOS=linux GOARCH=arm64 go build
+
+2.  build docker image
+
+        docker build -t server-image .
+
+3.  Start container with shared directory
+
+    ```sh
+    docker run -it \
+           -v   /Users/hohn/work-gh/mrva/mrvacommander:/mrva/mrvacommander \
+           server-image
+    ```
+
+4.  Run server in container
+
+        cd /mrva/mrvacommander/cmd/server/ && ./server

cmd/server/Dockerfile

@@ -0,0 +1,14 @@
+# Use Ubuntu 22.04 as the base image
+FROM arm64v8/ubuntu:22.04
+
+# Set environment variables to non-interactive to avoid prompts during installation
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Update the package list
+RUN apt-get update && \
+    apt-get clean 
+
+RUN mkdir /mrva
+
+# Set the default command
+CMD ["bash"]