DOT-Files/Gentoo/gentooamd/home/user/.tldrc/tldr/pages/linux/apptainer-sign.md

apptainer sign

Add digital signatures to a SIF container image. See also: apptainer-verify. More information: https://apptainer.org/docs/user/main/cli/apptainer_sign.html.

• Sign a container image using the default PGP key:

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

• Sign a container image using a specific private key file:

apptainer sign --key {{path/to/private.pem}} {{path/to/image.sif}}

• Sign a container image using a specific PGP key index:

apptainer sign {{[-k|--keyidx]}} {{key_index}} {{path/to/image.sif}}

• Sign a specific object group within the image:

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

• Sign a specific object by ID within the image:

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

• Display help:

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