tldr/pages/linux/apptainer-verify.md

apptainer verify

Verify digital signatures of SIF container images. See also: apptainer-sign. More information: https://apptainer.org/docs/user/main/cli/apptainer_verify.html.

• Verify a container image using the default PGP keyring:

apptainer verify {{path/to/image.sif}}

• Verify a container image using a specific public key file:

apptainer verify --key {{path/to/public.pem}} {{path/to/image.sif}}

• Verify a container image using a certificate file:

apptainer verify --certificate {{path/to/certificate.pem}} {{path/to/image.sif}}

• Verify all objects in the image:

apptainer verify {{[-a|--all]}} {{path/to/image.sif}}

• Verify a specific object group within the image:

apptainer verify {{[-g|--group-id]}} {{group_id}} {{path/to/image.sif}}

• Verify a specific object by ID within the image:

apptainer verify {{[-i|--sif-id]}} {{object_id}} {{path/to/image.sif}}

• Output verification results in JSON format:

apptainer verify {{[-j|--json]}} {{path/to/image.sif}}

• Display help:

apptainer verify {{[-h|--help]}}