Add 'k3os/container_cleanup.sh'

k3os/container_cleanup.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# ==============================================================================
+# K3s Disk Cleaner
+# Purpose: Prune unused container images and stopped containers to free disk space.
+# ==============================================================================
+
+# Threshold: Only prune if disk usage is above this percentage (optional logic)
+# Currently set to run unconditionally, but you can add checks using 'df'.
+
+echo "Starting K3s Cleanup Routine..."
+echo "------------------------------------------------"
+
+# Check if crictl exists (standard in K3s/K3OS)
+if ! command -v crictl &> /dev/null; then
+    echo "Error: crictl command not found."
+    exit 1
+fi
+
+echo "1. Removing stopped containers..."
+# List stopped containers and remove them
+# We suppress output for cleanliness, or remove > /dev/null to see details
+crictl rm $(crictl ps -a | grep Exited | awk '{print $1}') 2>/dev/null
+
+if [ $? -eq 0 ]; then
+    echo "   Stopped containers removed."
+else
+    echo "   No stopped containers found or error occurred."
+fi
+
+echo "2. Pruning unused images..."
+# This removes images not currently used by any container
+crictl rmi --prune
+
+echo "------------------------------------------------"
+echo "Disk Usage after cleanup:"
+df -h /var/lib/rancher
+echo "Done."