From c4fcaa280dc4b128853c9f25378cdcde77fa7f6b Mon Sep 17 00:00:00 2001
From: Manuel Castellin <manuel@castellinconsulting.com>
Date: Fri, 28 Feb 2020 18:27:11 +0000
Subject: [PATCH] feat: add script to remove untagged images

When using docker all the time to develop new images it is common to
leave a lot of untagged images behind. The
`docker_remove_untagged_img.sh` removes all docker images from local
storage that are not currently assigned to any tag
---
 docker_remove_untagged_img.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100755 docker_remove_untagged_img.sh

diff --git a/docker_remove_untagged_img.sh b/docker_remove_untagged_img.sh
new file mode 100755
index 0000000..d838791
--- /dev/null
+++ b/docker_remove_untagged_img.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+if [ ! "$(docker images | grep "^<none>" | awk '{print $3}')" ]; then
+  echo "No untagged images to remove. Exiting."
+  exit 0
+fi
+
+echo "Removing all untagged images..."
+docker rmi $(docker images | grep "^<none>" | awk '{print $3}')
+
+echo "Done."