noironetworks / opflex / 3834

Pull #572

travis-pro

Changes for local network policies

- Implemented on top of Genie changes from Tom
- Add the following classes
    class[gbpe/LocalL24Classifier]
    class[gbp/LocalSecGroup]
    class[gbp/LocalSecGroupSubject]
    class[gbp/LocalSecGroupRule]
    class[gbp/LocalAllowDenyAction]
    class[gbp/LocalSubnets]
    class[gbp/LocalSubnet]
- These are enabled via opflex.enable-local-netpol config variable
  and read from .netpol files in the netpol-sources.filesystem
  thats configured in the opflex config (Default localnetpol is disabled)
- Each security group will contain a .netpol json file containing
  corresponding netpol
- The implemenation will read these files and update the MODB
  via the read that then triggers callbacks. These will be the old
  callbacks in the policymanager that have been extended to also
  process the Local network policies.
- Add new classtype LOCAL_POLICY to differentiate between POLICY that
  is always assumed as remote and would trigger a resolveObj
- extend deserialize to support local ObjectInstances, currently it
  assumes its only called for remote ones.
- add LocalAllowDenyAction on startup since this is the only MO
  shared across netpols and should never be deleted. This is added
  in common tenant and one is created at startup.
- Implement delete by saving the notifs during add. File based
  delete will not work without some state because the file
  notification happens after the file is deleted.

Signed-off-by: Madhu Challa <challa@gmail.com>

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