From 359607488cab732b87ee30f73fc2c75ec1929946 Mon Sep 17 00:00:00 2001
From: Thomas E Lackey <telackey@bozemanpass.com>
Date: Wed, 28 Feb 2024 04:36:20 +0000
Subject: [PATCH] Prune dangling images

---
 run.sh | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/run.sh b/run.sh
index 509658b..bf06a4c 100755
--- a/run.sh
+++ b/run.sh
@@ -141,10 +141,11 @@ while true; do
     docker system prune --all --force
   fi
   if [[ "${WEBAPP_IMAGE_PRUNE:-true}" == "true" ]]; then
-    OLD_IMAGES="$(docker image ls --quiet --filter 'reference=laconic-webapp')"
-    if [[ -n "$OLD_IMAGES" ]]; then
-      echo "Pruning images: $OLD_IMAGES"
-      docker image rm -f $OLD_IMAGES
+    APP_IMAGES="$(docker image ls --quiet --filter 'reference=laconic-webapp')"
+    DANGLING_IMAGES="$(docker image ls --quiet --filter 'dangling=true')"
+    if [[ -n "$APP_IMAGES" ]] || [[ -n "$DANGLING_IMAGES" ]]; then
+      echo "Pruning images: $APP_IMAGES $DANGLING_IMAGES"
+      docker image rm -f $APP_IMAGES $DANGLING_IMAGES
     fi
   fi
   sleep ${CHECK_INTERVAL:-15}