RegistryBeginner

Docker Hub Cheatsheet

The world’s largest container registry — search, pull, push, and automate builds.

What it is

Docker Hub is Docker’s official public registry. Use it to discover official images, store private images, automate builds from GitHub, and share images with your team.

Quick start

docker login

Authenticate with Docker Hub.

docker pull nginx:alpine

Pull an official image.

docker push myuser/myapp:1.0

Push an image to your namespace.

docker search ubuntu

Search Docker Hub for images.

Common commands

Task	Command	Description
Login	`docker login`	Authenticate with Docker Hub.
Logout	`docker logout`	Remove stored credentials.
Pull image	`docker pull <image>:<tag>`	Download an image from Docker Hub.
Push image	`docker push <user>/<image>:<tag>`	Upload an image to your namespace.
Search images	`docker search <term>`	Search the Docker Hub catalog.
Tag image	`docker tag <image> <user>/<repo>:<tag>`	Tag a local image for pushing.

Real-world examples

Tag and push a custom image

docker build -t myapp:latest .
docker tag myapp:latest myuser/myapp:1.0
docker login
docker push myuser/myapp:1.0

Best practices

Use specific tags (not :latest) for production pulls for reproducibility.
Enable vulnerability scanning with Docker Scout on your Hub repos.
Use organisations and teams to control access to private repos.

Related cheatsheets

Last reviewed: 2026-06-15