Get latest (highest) version of a Docker Hub image

get-latest-version-dockerhub.sh

curl -L --fail "https://hub.docker.com/v2/repositories/${DOCKERHUB_REPO}/${DOCKERHUB_IMAGE}/tags/?page_size=1000" | \
	jq '.results | .[] | .name' -r | \
	sed 's/latest//' | \
	sort --version-sort | \
	tail -n 1

Interesting workaround, but could you provide a working example with "official" images (like alpine, Nextcloud, nginx)? A lot of repository looks like this: https://hub.docker.com/r/nodered/node-red/ which works with your code, but official images looks more like this https://hub.docker.com/_/nginx, so we always get this _. I can pull some information with this URL https://hub.docker.com/v2/repositories/nginx/, but that's it.

Interesting workaround, but could you provide a working example with "official" images (like alpine, Nextcloud, nginx)? A lot of repository looks like this: https://hub.docker.com/r/nodered/node-red/ which works with your code, but official images looks more like this https://hub.docker.com/_/nginx, so we always get this _. I can pull some information with this URL https://hub.docker.com/v2/repositories/nginx/, but that's it.

maybe the command docker manifest inspect nginx:latest -v is what you need

Thanks for this!

Thank you sir, I'm using it in my project and it works well (https://github.com/mmaous/sftp/blob/7c974165a25a34fd415d01637912e2b6b8b642bb/.github/workflows/docker-main.yml#L39)