feat: add cleanup-worker script

misc/clean-worker.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+cleanup_docker() {
+    RUNNING_CONTAINERS=$(docker ps -q)
+    if [ ! -z "$RUNNING_CONTAINERS" ]; then
+        docker stop $RUNNING_CONTAINERS
+    fi
+
+    docker system prune -f -a --volumes
+    docker network prune -f
+
+    service docker restart
+}
+
+cleanup_old_workspaces() {
+    # Suppression des workspaces dont la dernière date
+    # de modification est supérieure à 7 jours.
+    find /workspace -maxdepth 1 -type d -mtime +7 -exec rm -rf {} \;
+}
+
+main() {
+    cleanup_docker
+    cleanup_old_workspaces
+}
+
+main