openstack-image-manager

Easily manage and keep up to date a large number of images on an OpenStack environment

Upstream checksum fields

Image versions using the latest pointer must specify where to find the upstream checksum, using exactly one of these two fields:

• checksums_url — URL of a checksums file that contains the image filename, e.g. the SHA256SUMS manifest published by Ubuntu. Lines have the form <digest> <filename>; the line matching the image filename is used.
• checksum_url — URL of a checksum file that contains a single bare digest and nothing else, e.g. the .sha512 sidecar files published by Alpine. Use this when the checksum file does not contain the image filename.

Supported digests are MD5, SHA-1, SHA-256 and SHA-512 (hex-encoded). The checksum URLs must be HTTP(S).