[Bug 1917475] Re: RBAC Permissions too strict for Port_Binding table

[Frode Nordahl]

** Changed in: ovn (Ubuntu)
       Status: In Progress => Fix Committed

** Also affects: ovn (Ubuntu Groovy)
   Importance: Undecided
       Status: New

** Also affects: ovn (Ubuntu Hirsute)
   Importance: Undecided
       Status: New

** Also affects: ovn (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: ovn (Ubuntu Impish)
   Importance: High
     Assignee: Frode Nordahl (fnordahl)
       Status: Fix Committed

** Changed in: ovn (Ubuntu Hirsute)
       Status: New => In Progress

** Changed in: ovn (Ubuntu Groovy)
       Status: New => Fix Released

** Changed in: ovn (Ubuntu Focal)
       Status: New => Fix Released

** Changed in: ovn (Ubuntu Impish)
     Assignee: Frode Nordahl (fnordahl) => (unassigned)

** Changed in: ovn (Ubuntu Hirsute)
     Assignee: (unassigned) => Frode Nordahl (fnordahl)

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https://bugs.launchpad.net/bugs/1917475

Title:
  RBAC Permissions too strict for Port_Binding table

Status in ovn package in Ubuntu:
  Fix Committed
Status in ovn source package in Focal:
  Fix Released
Status in ovn source package in Groovy:
  Fix Released
Status in ovn source package in Hirsute:
  In Progress
Status in ovn source package in Impish:
  Fix Committed

Bug description:
  When using Openstack Ussuri with OVN 20.03 and adding a floating IP
  address to a unbound port the ovn-controller on the hypervisor
  repeatedly reports:

  2021-03-02T10:33:35.517Z|35359|ovsdb_idl|WARN|transaction error: {"details":"RBAC rules for client \"juju-eab186-zaza-d26c8c079cc7-11.project.serverstack\" role \"ovn-controller\" prohibit modification of table \"Port_Binding\".","error":"permission error"}
  2021-03-02T10:33:35.518Z|35360|main|INFO|OVNSB commit failed, force recompute next time.

  The seams to be because the ovn-controller needs to update the
  virtual_parent attribute of the port binding *2 but that is not
  included in the list of permissions allowed by the ovn-controller role
  *1

  *1 https://github.com/ovn-org/ovn/blob/aa8ef5588c119fa8615d78288a7db7e3df2d6fbe/northd/ovn-northd.c#L11331-L11332
  *2 https://pastebin.ubuntu.com/p/4CfcxgDgdm/

  Disabling rbac by changing the role to "" and stopping and starting
  the southbound db listener results in the port being immediately
  updated and the floating IP can be accessed.

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