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

[Andre Ruiz]

Just upgrading the packages (from focal-wallaby-proposed) did not help.
I upgraded on all ovn-chassis (even the octavia ones), all ovn-central,
all ovn-chassis-gateway. I also deleted the LB and recreated completely.

On a separate note, when I try to run "ovn-sbctl find connection" the
command freezes. Strace shows repeatedly:

poll([{fd=3, events=POLLIN}], 1, 4000)  = 0 (Timeout)
getrusage(RUSAGE_THREAD, {ru_utime={tv_sec=0, tv_usec=0}, ru_stime={tv_sec=0, tv_usec=8964}, ...}) = 0
socket(AF_UNIX, SOCK_STREAM, 0)         = 5
fcntl(5, F_GETFL)                       = 0x2 (flags O_RDWR)
fcntl(5, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
connect(5, {sa_family=AF_UNIX, sun_path="/var/run/ovn/ovnsb_db.sock"}, 29) = -1 ENOENT (No such file or directory)
close(5)

Any advice is welcome, thank you.

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

Title:
  RBAC Permissions too strict for Port_Binding table

Status in Ubuntu Cloud Archive:
  Fix Committed
Status in Ubuntu Cloud Archive wallaby series:
  Fix Committed
Status in ovn package in Ubuntu:
  Fix Released
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:
  Fix Committed
Status in ovn source package in Impish:
  Fix Released

Bug description:
  [Impact]
  The OpenStack Octavia service will not work after upgrade to Hirsute.

  [Test Plan]
  Execute the gate tests for the octavia charm, which performs a full cloud deployment and confirms successful creation and operation of load balancer.

  [Regression Potential]
  The patch has already been available in the upstream branch-20.12 and has been released in our Focal packages as part of the 20.03.2 point release update for some time.

  [Original 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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