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7 Commits

Author SHA1 Message Date
Joshua Boniface 7e42118e6f Adjust lock schema in NodeInstance and VMInstance 
Removes a superfluous lock and puts the sync_lock keys in more usable
places.
 2021-06-09 22:51:00 -04:00
Joshua Boniface 24663a3333 Add missing VM schema entry 2021-06-09 22:12:24 -04:00
Joshua Boniface 76c37e6628 Tweak some field names slightly and add missing 2021-06-09 09:58:18 -04:00
Joshua Boniface 5540bdc86b Add automatic schema upgrade to nodes 
Performs an automatic schema upgrade when all nodes are updated to the
latest version.

Addresses #129
 2021-06-08 23:35:39 -04:00
Joshua Boniface 3c102b3769 Add per-node schema tracking 
This will allow nodes to start with their own schema versions, and then
be updated simultaneously by the API.

References #129
 2021-06-08 23:35:39 -04:00
Joshua Boniface 602dd7b714 Update version 0 schema and add full validation 
Addresses #129
 2021-06-08 23:35:39 -04:00
Joshua Boniface 126f0742cd Add Zookeeper schema manager to zkhandler 
Adds a new class, ZKSchema, to handle schema management in Zookeeper in
an automated and consistent way. This should solve several issues:

1. Pain in managing changes to ZK keys
2. Pain in handling those changes during live upgrades
3. Simplifying the codebase to remove hardcoded ZK paths

The current master schema for PVC 0.9.19 is committed as version 0.

Addresses #129
 2021-06-08 23:35:39 -04:00