Docker: How do I pull a specific build-id?

问题

I would like to always pull a specific version, rather than just the latest.

A random example: https://registry.hub.docker.com/u/aespinosa/jenkins/builds_history/9511/

I am doing this because I only want to deploy versions that I have audited. Is this currently possible? Or am I forced to fork them and make my own?

回答1:

The way I do it is to tag each build

docker build -t $NAMESPACE/$APP_NAME:$BUILD_SHA1 .
docker tag $NAMESPACE/$APP_NAME:$SHA1  $DOCKER_REGISTRY/$NAMESPACE/$APP_NAME:$SHA1
docker push $DOCKER_REGISTRY/$NAMESPACE/$APP_NAME:$SHA1

and then you pull the specific tag

docker pull $DOCKER_REGISTRY/$NAMESPACE/$APP_NAME:$SHA1

回答2:

You can pull a specific image by digest by using the following syntax:

docker pull ubuntu@sha256:45b23dee08af5e43a7fea6c4cf9c25ccf269ee113168c19722f87876677c5cb2

If you need to find the hash, it is output when pushing/pulling the image. Some automated builds output it at the end. I tried looking for the hash with docker inspect but it didn't appear to be there, so you'll have to delete the image and pull it again to view the hash.

来源：https://stackoverflow.com/questions/25445318/docker-how-do-i-pull-a-specific-build-id