return all existing systems

clones an existing system

create a system returning its id

delete a system from ES

Grabs a system by an id, return nil if missing

Grabs a system by an id

Search for a system using its hostname

converting ES values back into keywords

Filter systems that aren't persisted already

partial update of a system into ES

Update a system

basic query string

grabbing instance id of spec

updates public ip address in the machine persisted data