# Functions
Creates a new Hook Controller and adds it to the Manager.
# Variables
DigestRegexp matches valid digests.
DomainRegexp defines the structure of potential domain components that may be part of image names.
IdentifierRegexp is the format for string identifier used as a content addressable identifier using sha256.
NameRegexp is the format for the name component of references.
ReferenceRegexp is the full supported format of a reference.
Application settings.
ShortIdentifierRegexp is the format used to represent a prefix of an identifier.
TagRegexp matches valid tag names.