docker pull

The docker pull command is used to download Docker images from a registry, such as Docker Hub. This command fetches the specified image and its layers from the registry and stores them in your local Docker host.

Basic Syntax

docker pull [OPTIONS] NAME[:TAG|@DIGEST]

Key Options and Parameters

--all-tags, -a: Download all tagged images in the repository.
docker pull -a ubuntu
--disable-content-trust: Skip image verification (default is true).
docker pull --disable-content-trust ubuntu

Examples

Pulling a Specific Image
docker pull nginx
This command pulls the latest version of the nginx image from Docker Hub.
Pulling a Specific Tag
docker pull ubuntu:20.04
This command pulls the ubuntu image with the tag 20.04.
Pulling All Tags
docker pull -a ubuntu
This command pulls all available tags of the ubuntu image.
Pulling an Image by Digest
docker pull ubuntu@sha256:12345abcde...
This command pulls the ubuntu image with the specified digest.

Conclusion

The docker pull command is essential for downloading images from a registry to your local Docker host. Understanding its options and parameters allows you to effectively manage and retrieve Docker images based on your needs.

Last modified: 05 December 2024