From 2b788358728a786a0739f412e51dfc15b4b8bad7 Mon Sep 17 00:00:00 2001
From: Martin Lablans <m.lablans@dkfz-heidelberg.de>
Date: Thu, 20 Oct 2022 16:55:05 +0200
Subject: [PATCH] Add housekeeping task (docker image cleanup)

---
 lib/update-bridgehead.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/update-bridgehead.sh b/lib/update-bridgehead.sh
index dc108f5..e64abd6 100755
--- a/lib/update-bridgehead.sh
+++ b/lib/update-bridgehead.sh
@@ -1,6 +1,17 @@
 #!/bin/bash
 source lib/functions.sh
 
+AUTO_HOUSEKEEPING=${AUTO_HOUSEKEEPING:-true}
+
+if [ "$AUTO_HOUSEKEEPING" == "true" ]; then
+	A="Performing automatic maintenance: Cleaning docker images."
+	hc_send log "$A"
+	log INFO "$A"
+	docker system prune -a -f
+else
+	log WARN "Automatic housekeeping disabled (variable AUTO_HOUSEKEEPING != \"true\")"
+fi
+
 hc_send log "Checking for bridgehead updates ..."
 
 CONFFILE=/etc/bridgehead/$1.conf