lifeflag

var ErrNotFound = errors.New("entity not found")

ErrNotFound indicates that the requested entity no longer exists.

We avoid errors.NotFound, because errors.NotFound is non-specific, and it's our job to communicate *this specific condition*. There are many possible sources of errors.NotFound in the world, and it's not safe or sane for a client to treat a generic NotFound as specific to the entity in question.

We're still vulnerable to apiservers returning unjustified CodeNotFound but at least we're safe from accidental errors.NotFound injection in the api client mechanism.