Dockerhub: listing all available versions of a given image?

I'm looking for a way to list all publicly available versions of an image from Dockerhub. Is there a way this could be achieved?

Specifically, I'm interested in the openjdk:8-jdk-alpine images.

Dockerhub typically only lists the latest version of each image, and there are no linking to historic versions. For openjdk, it's currently 8u191-jdk-alpine3.8:

However, it possible to pull older versions if we know their image digest ID:

openjdk:8-jdk-alpine@sha256:1fd5a77d82536c88486e526da26ae79b6cd8a14006eb3da3a25eb8d2d682ccd6
openjdk:8-jdk-alpine@sha256:c5c705b462abab858066d412b3f871865684d8f837571c98b68e78c505dc7549

With some luck, I was able to find these digests for OpenJDK 8 (Java versions 1.8.0_171 and 1.8.0_151 respectively), by googling openjdk8 alpine digest and looking at github tickets, which included the image digest.

But, is there a systematic way for listing all publicly available digests?

Looking at docker search documentation, there's doesn't seem to be an option for listing the image version, only search by name.

You don't need digests to pull "old" images, you would rather use their tags (even if they are not displayed in Docker Hub).

EDIT (2023/10/01): with Docker Hub v2 API, because v1 has been deprecated

Docker Hub v1 API has been deprecated on 2022/09/05, so we now need to use the v2 API.

Use the following command to retrieve tags of a particular image, parsing the output of https://registry.hub.docker.com/v2/namespaces/$REGISTRY/repositories/$REPOSITORY/tags. You also need jq installed to parse JSON result:

# for official images, REGISTRY is library and REPOSITORY is the name of the image
# otherwise, split the image name (e.g. google/cloud-sdk into REGISTRY=google and REPOSITORY=cloud-sdk)
REGISTRY=library
REPOSITORY=openjdk

next_page="https://registry.hub.docker.com/v2/namespaces/$REGISTRY/repositories/$REPOSITORY/tags?page=1&page_size=1000"

while [ "$next_page" != "null" ]
do
    result=$(curl -s "$next_page")
    echo $result | jq -r '.results[].name'
    
    next_page=$(echo $result | jq -r '.next')
done

Unlike with v1 API, we need to paginate here (so we use the next_page value to get all results).

You can then filter and only keep tags you're interested in, with | jq 'select(match("^19.*jdk-alpine"))' or | grep -E '^19.*jdk-alpine'.

Result for REGISTRY=library REPOSITORY=openjdk (11812 tags at the time of writing) looks like:

22-slim-bullseye
22-slim-bookworm
22-slim
22-oraclelinux8
22-oraclelinux7
22-oracle
22-jdk-slim-bullseye
22-jdk-slim-bookworm
22-jdk-slim
22-jdk-oraclelinux8
[...]

Old answer using Docker Hub v1 API (won't work anymore, API is now deprecated)

I use the following command to retrieve tags of a particular image, parsing the output of https://registry.hub.docker.com/v1/repositories/$REPOSITORY/tags :

REPOSITORY=openjdk # can be "<registry>/<image_name>" ("google/cloud-sdk" for example)
wget -q https://registry.hub.docker.com/v1/repositories/$REPOSITORY/tags -O - | \
    jq -r '.[].name'

Result for REPOSITORY=openjdk (1593 tags at the time of writing) looks like :

latest
10
10-ea
10-ea-32
10-ea-32-experimental
10-ea-32-jdk
10-ea-32-jdk-experimental
10-ea-32-jdk-slim
10-ea-32-jdk-slim-experimental
10-ea-32-jre
[...]

If you can't/don't want to install jq (tool to manipulate JSON), then you could use :

wget -q https://registry.hub.docker.com/v1/repositories/$REPOSITORY/tags -O - | \
    sed -e 's/[][]//g' -e 's/"//g' -e 's/ //g' | \
    tr '}' '\n'  | \
    awk -F: '{print $3}'

(I'm pretty sure I got this command from another question, but I can't find where)

You can of course filter the output of this command and keep only tags you're interested in :

wget -q https://registry.hub.docker.com/v1/repositories/$REPOSITORY/tags -O - | \
    jq -r '.[].name | select(match("^8.*jdk-alpine"))'

or :

wget -q https://registry.hub.docker.com/v1/repositories/$REPOSITORY/tags -O - | \
    jq -r '.[].name' \
    grep -E '^8.*jdk-alpine'