docker-login

Log in to Docker Hub

$ docker login

$ docker login [registry.example.com]

$ docker login -u [username]

$ echo [password] | docker login -u [username] --password-stdin

docker login [options] [server]

docker login authenticates with a Docker registry. Credentials are stored in ~/.docker/config.json. Defaults to Docker Hub if no server specified. Authentication is required to push images and access private repositories. The command supports various registry providers including Docker Hub, GitHub Container Registry, and private registries.

-u, --username string

Username.

Password (insecure, prefer --password-stdin).

Take password from stdin.

~/.docker/config.json

Stores registry credentials and authentication tokens. Uses credential helpers for secure storage when available.

Using -p exposes password in shell history. Always prefer --password-stdin for scripted logins.

docker-logout(1), docker-pull(1)