bash script to delete images from docker registry using search keyword

clean.docker.registry.sh

#!/bin/bash
# 
# usage ./clean.docker.registry.sh registryUrl login filterString
#

# read the password
echo -n Password: 
read -s password

user="$2:${password}"
dockerRegistry="$1"
imagesFilter="$3"

# get the list of images names that match the filter
images=$(curl -s -u ${user} ${dockerRegistry}/v2/_catalog | jq -r '.repositories[] | select(. | contains("'${imagesFilter}'")) ')

for image in $images ; do
  # get the list of tags for each image	
	tags=$(curl -s -u ${user} ${dockerRegistry}/v2/${image}/tags/list | jq -r .tags[])

	for tag in $tags ; do
		echo "${image}:${tag}"
		# get the digest of the image:tag
    digest=$(curl -H "Accept: application/vnd.docker.distribution.manifest.v2+json" -v -s -u ${user} "${dockerRegistry}/v2/${image}/manifests/${tag}" 2>&1  | grep -e "Docker-Content-Digest:*" | awk '{ sub(/\r/,"",$3) ; print $3 }')
		if [ -z $digest ] ; then
			echo "${image}:${tag} not found"
		else
			echo "Deleting ${image}:${tag}:${digest}"
			curl -XDELETE -w "[%{http_code}]\n" -s -u ${user} ${dockerRegistry}'/v2/'${image}'/manifests/'${digest}
			echo "..."
		fi
	done
done

The curl command that gets the digest is missing -I option to get the headers, currently it only outputs the response body.

Please replace "Docker-Content-Digest:" with "digest:"

@mohamed-el-habib
Kindly check my fork https://gist.github.com/tahazayed/98b7734da6dd23f8a9e167806891613d
I have added arguments and fixed the search issue