Keep commands for cleaning up environment in one file.

bin/clean.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+# 2023-08-21 Hyperling
+# Clean all unused images and containers.
+#   https://docs.docker.com/config/pruning/
+# Very helpful during development, nice in a long-running production as well.
+# usage: clean.sh
+
+docker image prune -a
+
+docker container prune
+
+docker volume prune
+
+docker network prune
+
+exit 0