docker inspect bf85f2b6bf52 | egrep -i version


"NEXTCLOUD_VERSION=12.0.4"
MARIADB_MAJOR=10.2   MARIADB_VERSION=10.2.12+maria~jessie


curl https://raw.githubusercontent.com/  hanscees/dockerscripts/master/scripts/get-docker-hub--image-tags.sh > get-public-image-tags.sh
chmod +x get-public-image-tags.sh
./get-public-image-tags.sh library/nginx


apt-get install jq


docker-compose pull
docker-compose up -d


docker pull mariadb@sha256:12e32f8d1e8958cd076660bc22d19aa74f2da63f286e100fb58d41b740c57006


for image in `cat ImageId-file | egrep RepoId | awk '{print $3}'` ; do
   echo $image ;
   docker pull $image
done


./get-docker-hub-digest library/nginx 1.15-alpine


cat ImageId-file | egrep -v "RepoId|none|^$" | ./check-docker-image-updates.sh
@L:The output will be:


nginx alpine can be updated: a new version is available
also check file UpdateTheseImages


cat UpdateTheseImages
update available for library/nextcloud:latest
update available for library/mariadb:latest
update available for mvance/unbound:1.8.3