[Bug 1913024] Re: RBAC Permissions too strict for Chassis_Private table
Corey Bryant
1913024 at bugs.launchpad.net
Wed Nov 3 12:32:02 UTC 2021
This bug was fixed in the package ovn - 20.12.0-0ubuntu3~cloud0
---------------
ovn (20.12.0-0ubuntu3~cloud0) focal-wallaby; urgency=medium
.
* New update for the Ubuntu Cloud Archive.
.
ovn (20.12.0-0ubuntu3) hirsute; urgency=medium
.
* Add RBAC rules for IGMP_Group table (LP: #1914988):
- d/p/lp-1914988-Add-IGMP_Group-to-ovn-controller-RBAC.patch
- d/p/lp-1914988-northd-Add-missing-RBAC-rules-for-FDB-table.patch
- d/p/lp-1914988-northd-Amend-Chassis-RBAC-rules.patch
- d/p/lp-1914988-northd-Add-Controller_Event-RBAC-rules.patch
- d/p/lp-1914988-tests-Amend-release-stale-port-binding-test-for-RBAC.patch
- d/p/lp-1914988-tests-Use-ovn_start-in-tests-ovn-controller.at.patch
- d/p/lp-1914988-tests-Make-certificate-generation-extendable.patch
- d/p/lp-1914988-tests-Test-with-SSL-and-RBAC-for-controller-by-defau.patch
* d/p/lp-1943266-physical-do-not-forward-traffic-from-localport-to-a-.patch:
Do not forward traffic from localport to localnet ports (LP: #1943266).
* d/p/lp-1913024-northd-Add-Chassis_Private-external_ids-column-to-RB.patch
Update RBAC rules for Chassis_Private table (LP: #1913024).
* d/p/lp-1917475-northd-Amend-RBAC-rules-for-Port_Binding-table.patch
Update RBAC rules for Port_Binding table (LP: #1917475).
** Changed in: cloud-archive/wallaby
Status: Fix Committed => Fix Released
--
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https://bugs.launchpad.net/bugs/1913024
Title:
RBAC Permissions too strict for Chassis_Private table
Status in Ubuntu Cloud Archive:
Fix Released
Status in Ubuntu Cloud Archive wallaby series:
Fix Released
Status in ovn package in Ubuntu:
Fix Released
Status in ovn source package in Focal:
Fix Released
Status in ovn source package in Hirsute:
Fix Released
Status in ovn source package in Impish:
Fix Released
Bug description:
[Impact]
The OpenStack metadata service will not work after upgrade to Hirsute.
[Test Plan]
Execute the gate tests for the neutron-api-plugin-ovn charm, which performs a full cloud deployment and confirms two instances can spawn, get metadata and communicate with each other.
[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]
After introduction of the Chassis_Private table in OVN 20.09, CMS'es do expect data plane daemons to be able to write to the external_ids column.
However the current RBAC permissions do not allow for this. Running with this patch for ovn-northd fixes the problem:
diff --git a/northd/ovn-northd.c b/northd/ovn-northd.c
index 27df6a379..d332721cd 100644
--- a/northd/ovn-northd.c
+++ b/northd/ovn-northd.c
@@ -12951,7 +12951,7 @@ static const char *rbac_chassis_update[] =
static const char *rbac_chassis_private_auth[] =
{"name"};
static const char *rbac_chassis_private_update[] =
- {"nb_cfg", "nb_cfg_timestamp", "chassis"};
+ {"nb_cfg", "nb_cfg_timestamp", "chassis", "external_ids"};
static const char *rbac_encap_auth[] =
{"chassis_name"};
For completeness I will include output from a OpenStack neutron-ovn-metadata-agent daemon when running without the fix:
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command Traceback (most recent call last):
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/command.py", line 40, in execute
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command t.add(self)
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command File "/usr/lib/python3.8/contextlib.py", line 120, in __exit__
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command next(self.gen)
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command File "/usr/lib/python3/dist-packages/ovsdbapp/api.py", line 119, in transaction
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command del self._nested_txns_map[cur_thread_id]
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command File "/usr/lib/python3/dist-packages/ovsdbapp/api.py", line 69, in __exit__
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command self.result = self.commit()
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/transaction.py", line 62, in commit
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command raise result.ex
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/connection.py", line 122, in run
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command txn.results.put(txn.do_commit())
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/transaction.py", line 118, in do_commit
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command raise RuntimeError(msg)
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command RuntimeError: OVSDB Error: {"details":"RBAC rules for client \"ps5-ra4-n2.maas\" role \"ovn-controller\" prohibit modification of table \"Chassis_Private\".","error":"permission error"}
2021-01-25 08:06:51.333 1763580 ERROR ovsdbapp.backend.ovs_idl.command
2021-01-25 08:06:51.334 1763580 CRITICAL neutron [-] Unhandled error: RuntimeError: OVSDB Error: {"details":"RBAC rules for client \"ps5-ra4-n2.maas\" role \"ovn-controller\" prohibit modification of table \"Chassis_Private\".","error":"permission error"}
2021-01-25 08:06:51.334 1763580 ERROR neutron Traceback (most recent call last):
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/bin/neutron-ovn-metadata-agent", line 10, in <module>
2021-01-25 08:06:51.334 1763580 ERROR neutron sys.exit(main())
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/lib/python3/dist-packages/neutron/cmd/eventlet/agents/ovn_metadata.py", line 17, in main
2021-01-25 08:06:51.334 1763580 ERROR neutron metadata_agent.main()
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/lib/python3/dist-packages/neutron/agent/ovn/metadata_agent.py", line 39, in main
2021-01-25 08:06:51.334 1763580 ERROR neutron agt.start()
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/lib/python3/dist-packages/neutron/agent/ovn/metadata/agent.py", line 229, in start
2021-01-25 08:06:51.334 1763580 ERROR neutron self.register_metadata_agent()
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/lib/python3/dist-packages/neutron/agent/ovn/metadata/agent.py", line 239, in register_metadata_agent
2021-01-25 08:06:51.334 1763580 ERROR neutron self.sb_idl.db_add(table, self.chassis, 'external_ids',
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/command.py", line 40, in execute
2021-01-25 08:06:51.334 1763580 ERROR neutron t.add(self)
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/lib/python3.8/contextlib.py", line 120, in __exit__
2021-01-25 08:06:51.334 1763580 ERROR neutron next(self.gen)
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/lib/python3/dist-packages/ovsdbapp/api.py", line 119, in transaction
2021-01-25 08:06:51.334 1763580 ERROR neutron del self._nested_txns_map[cur_thread_id]
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/lib/python3/dist-packages/ovsdbapp/api.py", line 69, in __exit__
2021-01-25 08:06:51.334 1763580 ERROR neutron self.result = self.commit()
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/transaction.py", line 62, in commit
2021-01-25 08:06:51.334 1763580 ERROR neutron raise result.ex
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/connection.py", line 122, in run
2021-01-25 08:06:51.334 1763580 ERROR neutron txn.results.put(txn.do_commit())
2021-01-25 08:06:51.334 1763580 ERROR neutron File "/usr/lib/python3/dist-packages/ovsdbapp/backend/ovs_idl/transaction.py", line 118, in do_commit
2021-01-25 08:06:51.334 1763580 ERROR neutron raise RuntimeError(msg)
2021-01-25 08:06:51.334 1763580 ERROR neutron RuntimeError: OVSDB Error: {"details":"RBAC rules for client \"ps5-ra4-n2.maas\" role \"ovn-controller\" prohibit modification of table \"Chassis_Private\".","error":"permission error"}
2021-01-25 08:06:51.334 1763580 ERROR neutron
2021-01-25 08:06:51.375 1763595 INFO oslo_service.service [-] Parent process has died unexpectedly, exiting
2021-01-25 08:06:51.375 1763594 INFO oslo_service.service [-] Parent process has died unexpectedly, exiting
2021-01-25 08:06:51.375 1763595 INFO eventlet.wsgi.server [-] (1763595) wsgi exited, is_accepting=True
2021-01-25 08:06:51.376 1763594 INFO eventlet.wsgi.server [-] (1763594) wsgi exited, is_accepting=True
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