A trusted directory check, which rejects images that do not come from the set of user-configured trusted directories.

Attributes

• trustedDirPatterns (type: list(String.t), default: nil) - Required. List of trusted directory patterns. A pattern is in the form "registry/path/to/directory". The registry domain part is defined as two or more dot-separated words, e.g., us.pkg.dev, or gcr.io. Additionally, * can be used in three ways as wildcards: 1. leading * to match varying prefixes in registry subdomain (useful for location prefixes); 2. trailing * after registry/ to match varying endings; 3. trailing ** after registry/ to match "/" as well. For example: -- gcr.io/my-project/my-repo is valid to match a single directory -- *-docker.pkg.dev/my-project/my-repo or *.gcr.io/my-project are valid to match varying prefixes -- gcr.io/my-project/* will match all direct directories in my-project -- gcr.io/my-project/** would match all directories in my-project -- gcr.i* is not allowed since the registry is not completely specified -- sub*domain.gcr.io/nginx is not valid because only leading * or trailing * are allowed. -- *pkg.dev/my-project/my-repo is not valid because leading * can only match subdomain -- **-docker.pkg.dev is not valid because one leading * is allowed, and that it cannot match /