Curl Download Docker Image ((exclusive)) Official

Downloading a Docker image using is a powerful technique for environments where the Docker CLI is unavailable, such as restricted CI/CD runners, air-gapped systems, or minimal recovery environments.

Most registries, including Docker Hub, require an authentication token—even for public images. You can request this token by sending a GET request to the registry’s auth service. : TOKEN=$(curl -s "https://docker.io" | jq -r '.token') Use code with caution. Note: Replace library/ubuntu with your target image name. 2. Retrieve the Image Manifest curl download docker image

The manifest is a JSON file that lists the "digests" (hashes) for every layer that makes up the image. To get the manifest, you must include your token and a specific Accept header to tell the registry you want the OCI or Docker-specific manifest format. : Downloading a Docker image using is a powerful

Because Docker registries follow the , they act as standard HTTP APIs. This allows you to manually authenticate, retrieve image manifests, and download individual layers as tarballs using standard web tools. The Three-Step Process to Curl a Docker Image : TOKEN=$(curl -s "https://docker