crane-config
retrieve container image configuration
TLDR
Get image configuration
$ crane config [image]
Get config as JSON$ crane config [image] | jq .
SYNOPSIS
crane config [options] image
DESCRIPTION
crane config retrieves the configuration blob for a container image. This includes environment variables, entrypoint, command, working directory, labels, exposed ports, and other image metadata defined in the OCI image specification.Output is in JSON format, making it easy to pipe to jq for field extraction.
PARAMETERS
image
Container image reference (e.g., `ubuntu:latest`, `ghcr.io/org/image:tag`).--platform os/arch
Specify platform for multi-arch images (e.g., `linux/amd64`).
INSTALL
sudo pacman -S crane
sudo apk add crane
sudo zypper install crane
brew install crane
nix profile install nixpkgs#crane
CAVEATS
Requires network access to the container registry. Private registries require authentication via `crane auth login`. Multi-arch images return the config for the host platform unless `--platform` is specified.
SEE ALSO
crane(1), crane-manifest(1)
