implement 'pause' for hosts via agent

[NickTitle]

From the kolide/cloud ui, a user would be able to 'pause' a host from reporting up to cloud.

concept

'pause' is the core concept because:

• the host would NOT stop checking in, so that if a user decides to 'unpause' the host, they'd pull this info down in a subsequent configuration
• this host would be temporarily removed from live/scheduled querying and workspaces, but data about the host would be kept

questions

• what do we do about data that osqd generated while the host was paused? does that fill up rocksdb or do we discard it?
• do we count hosts against host quotas while paused?

[marpaia]

I think that if a host is paused, we should kill osqueryd and just maintain lightweight comms just to see if the agent becomes unpaused. I think paused hosts should count against your limit, you shouldn't be so tight on it where that really matters. I'm open to discussion on that though, I don't feel very strongly about it.

[marpaia]

Closing this for now as we have no current plans to implement this feature in the product.