Docker Registries

The default registry is Docker Hub: https://hub.docker.com/

After creating an account, pushing to a registry involves logging in, tagging images, and pushing images:

Login: https://docs.docker.com/engine/reference/commandline/login/

$ docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: [...]
Password:
Login Succeeded

List available local images:

$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
fedoradebug         20190325            2c9cb6ffea7c        5 minutes ago       7.71GB

Tag an image one or more times:

$ docker tag 2c9cb6ffea7c kgibm/fedoradebug:20190325
$ docker tag 2c9cb6ffea7c kgibm/fedoradebug:latest
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
fedoradebug         20190325            2c9cb6ffea7c        10 minutes ago      7.71GB
kgibm/fedoradebug   20190325            2c9cb6ffea7c        10 minutes ago      7.71GB
kgibm/fedoradebug   latest              2c9cb6ffea7c        10 minutes ago      7.71GB

Alternatively, tagging can be done at build time with one or more -t flags:

DOCKER_BUILDKIT=1 docker build --secret id=remotepassword,src=remotepassword.txt -t kgibm/fedoradebug:20190325 -t kgibm/fedoradebug:latest .

Push to the registry: https://docs.docker.com/engine/reference/commandline/push/

docker push kgibm/fedoradebug

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