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4.3. RHBA-2016:1063 - openstack-neutron bug fix advisory

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The bugs contained in this section are addressed by advisory RHBA-2016:1063. Further information about this advisory is available at https://access.redhat.com/errata/RHBA-2016:1063.html.

4.3.1. openstack-neutron

BZ#1286302
Previously, using 'neutron-netns-cleanup' when manually taking down a node from an HA cluster would not properly clean up processes in the neutron L3-HA routers. Consequently, when the node was connected again to the cluster, and services were re-created, the processes would not properly respawn with the right connectivity. As a result, even if the processes were alive, they were disconnected; this sometimes led to a situation where no L3-HA router was able to take the 'ACTIVE' role.
With this update, the 'neutron-netns-cleanup' scripts and related OCF resources have been fixed to kill the relevant keepalived processes and child processes.
As a result, nodes can be taken off the cluster and back, and the resources will be properly cleaned up when taken off the cluster, and restored when taken back.
BZ#1325806
With this update, OpenStack Networking has been rebased to version 7.0.4.

This update introduces the following enhancements:

* Add an option for nova endpoint type
* Update devstack plugin for dependent packages
* De-duplicate conntrack deletions before running them
* Unmarshall portinfo on update_fdb_entries calls
* Avoid DuplicateOptError in functional tests
* Retry port create/update on duplicate db records
* Catch PortNotFound after HA router race condition
* Documenting network_device_mtu in agents config files
* Make all tox targets constrained
* Filter HA routers without HA interface and state
* Correct return values for bridge sysctl calls
* Add tests for RPC methods/classes
* Fix sanity check --no* BoolOpts
* Add extension requirement in port-security api test
* Fix for adding gateway with IP outside subnet
* Add the rebinding chance in _bind_port_if_needed
* DHCP: release DHCP port if not enough memory
* DHCP: fix regression with DNS nameservers
* DHCP: handle advertise_mtu=True when plugin does not set mtu values
* Disable IPv6 on bridge devices in LinuxBridgeManager
* ML2: delete_port on deadlock during binding
* ML2: Add tests to validate quota usage tracking
* Postpone heavy policy check for ports to later
* Static routes not added to qrouter namespace for DVR
* Make add_tap_interface resilient to removal
* Fix bug when enable configuration named dnsmasq_base_log_dir
* Wait for the watch process in test case
* Trigger dhcp port_update for new auto_address subnets
* Add generated port id to port dict
* Protect 'show' and 'index' with Retry decorator
* Add unit test cases for linuxbridge agent when prevent_arp_spoofing is True
* Rule, member updates are missed with enhanced rpc
* Add relationship between port and floating ip
* OVS agent should fail if it cannot get DVR mac address
* DVR: Optimize check_ports_exist_on_l3_agent()
* DVR: When updating port's fixed_ips, update arp
* DVR: Fix _notify_l3_agent_new_port for proper arp update
* DVR: Notify specific agent when deleting floating ip
* DVR: Handle dvr serviceable port's host change
* DVR: Notify specific agent when creating floating ip
* DVR: Only notify needed agents on new VM port creation
* DVR: Do not reschedule the l3 agent running on compute node
* Change check_ports_exist_on_l3agent to pass the subnet_ids
* Add systemd notification after reporting initial state
* Raise RetryRequest on policy parent not found
* Keep reading stdout/stderr until after kill
* Revert "Revert "Revert "Remove TEMPEST_CONFIG_DIR in the api tox env"""
* Ensure that tunnels are fully reset on ovs restart
* Update HA router state if agent is not active
* Resync L3, DHCP and OVS/LB agents upon revival
* Fix floatingip status for an HA router
* Fix L3 HA with IPv6
* Make object creation methods in l3_hamode_db atomic
* Cache the ARP entries in L3 Agent for DVR
* Cleanup veth-pairs in default netns for functional tests
* Do not prohibit VXLAN over IPv6
* Remove 'validate' key in 'type:dict_or_nodata' type
* Fix get_subnet_for_dvr() to return correct gateway mac
* Check missed ip6tables utility
* SR-IOV: Fix macvtap assigned vf check when kernel < 3.13
* Make security_groups_provider_updated work with Kilo agents
* Imported Translations from Zanata
* Revert "Change function call order in ovs_neutron_agent."
* Remove check on DHCP enabled subnets while scheduling dvr
* Check gateway IP address when updating subnet
* Add tests that constrain database query count
* Do not call add_ha_port inside a transaction
* Log INFO message when setting admin state up flag to False for OVS port
* Call _allocate_vr_id outside of transaction
* Move notifications before database retry decorator
* Imported translations from Zanata
* Run functional gate jobs in a constrained environment
* Tox: Remove fullstack env, keep only dsvm-fullstack
* Force L3 agent to resynchronize routers that it could not configure
* Support migration of legacy routers to HA and back
* Catch known exceptions when deleting last HA router
* test_migrations: Avoid returning a filter object for python3
* move usage_audit to cmd/eventlet package
* Do not autoreschedule routers if l3 agent is back online
* Make port binding message on dead agents clear
* Disallow updating SG rule direction in RESOURCE_ATTRIBUTE_MAP
* Force service provider relationships to load
* Avoid full_sync in l3_agent for router updates
* In port_dead, handle case when port already deleted
* Kill the vrrp orphan process when (re)spawn keepalived
* Add check that list of agents is not empty in _get_enabled_agents
* Batch db segment retrieval
* Ignore possible suffix in iproute commands.
* Add compatibility with iproute2 >= 4.0
* Tune _get_candidates for faster scheduling in dvr
* Separate rbac calculation from _make_network_dict
* Skip keepalived_respawns test
* Support Unicode request_id on Python 3
* Validate local_ip for linuxbridge-agent
* Use diffs for iptables restore instead of all rules
* Fix time stamp in RBAC extension
* Notify about port create/update unconditionally
* Ensure l3 agent receives notification about added router
* get_device_by_ip: don't fail if device was deleted
* Make fullstack test_connectivity tests more forgiving
* Adding security-groups unit tests
* Check missed IPSet utility using neutron-sanity-check
* Remove duplicate deprecation messages for quota_items option
* Lower l2pop "isn't bound to any segment" log to debug
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