docker image build fails frequently

[wyli]

Describe the bug
recently the docker image build on DockerHub fails frequently without specific error msg:

this might due to longer building time or larger disk space requirement, need some investigations here.

Additional context
https://hub.docker.com/repository/docker/projectmonai/monai/builds

[IsaacYangSLA]

The same docker build process took about 4 minutes in build_only runner (https://github.com/Project-MONAI/MONAI/runs/1413950455?check_suite_focus=true). If docker hub has computation/memory quota, we can remove the build process used in docker hub and add a docker push into our CI script after the local_docker step is finished. Since both docker hub and local_docker build the image from Dockerfile, the resulting container images will be the same.

[wyli]

that sounds great @IsaacYangSLA, thanks! could you send a PR to extend the local docker step? perhaps could incorporate the changes in #1253 if they are useful.

the webhook will also trigger build for a tagging push (for milestone releases), so for now let's not completely cancel the webhook

[danielschulz]

The same docker build process took about 4 minutes in build_only runner (https://github.com/Project-MONAI/MONAI/runs/1413950455?check_suite_focus=true). If docker hub has computation/memory quota, we can remove the build process used in docker hub and add a docker push into our CI script after the local_docker step is finished. Since both docker hub and local_docker build the image from Dockerfile, the resulting container images will be the same.

I basically just did that to solve the issue w/ rate limits on hub.docker.com. Here's my PR:
#1406

That's how I'd solve the issue:
https://github.com/Project-MONAI/MONAI/pull/1406/files#diff-2b7a275119830a358bfee2c8a847ea3d1f46f4e2ad8e6239e76d60275e322021