telescopia

telescopia

telescopia is a Go library meant to be used in Kubernetes Operators/Controllers developed with controller-runtime.

telescopia provides a dynamic caching layer that implements the controller-runtime cache.Cache interface. This dynamic cache allows for operator/controller authors to dynamically add or remove informers from the cache as needed as well as defining how informers are generated when establishing watches. This dynamic caching layer provides operator/controller authors more control over the cache and allows for new patterns of operator/controller development to occur that can't be as easily done with the currently existing controller-runtime caches.

One such pattern (and the one it was initially created for) that telescopia's dynamic cache will allow for is enabling an operator/controller to dynamically add or remove informers based on it's RBAC permissions. This allows for the creation of operators/controllers that have scopable permissions, which in turn will make operators/controllers developed with this pattern more appealing to cluster-admins and those concerned with the security of their clusters.