Connect opens a new connections to a Postgres database and ensures it is reachable.

NewBootConfig creates a new BootConfig and populates it with kernel and initrd images, as well as additional boot parameters, generates a unique ID, and returns the new BootConfig.

NewBootGroup creates a new BootGroup and populates it with the specified boot config ID, name, and description, as well as populates its ID with a unique identifier.

NewBootGroupAssignment creates a new BootGroupAssignment and populates it with the boot group id and node ID specified, returning the BootGroupAssignment that got created.

NewNode creates a new Node and populates it with the boot MAC address (converts to lower case), XName, and NID specified.