Introduce load-balancer affinity timeout in order to dnat connections received
from the same client to a given load-balancer to the same backend if received
in the affinity timeslot specified by the CMS.

Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=2127959

Changes since v2:
- remove port and protocl dependency

Changes since v1:
- rebase on top of ovn master
- fix system-ovn.at
- fix documentation
- take into account the case the CMS does not provide vip/backends ports

Lorenzo Bianconi (3):
  actions: introduce commit_lb_aff action
  actions: introduce chk_lb_aff action
  northd: rely on new actions for lb affinity

 controller/lflow.h           |   1 +
 include/ovn/actions.h        |  16 ++
 include/ovn/logical-fields.h |   3 +
 lib/actions.c                | 397 +++++++++++++++++++++++++++++++++++
 lib/lb.c                     |   3 +
 lib/lb.h                     |   1 +
 northd/northd.c              | 206 +++++++++++++++---
 northd/ovn-northd.8.xml      | 208 +++++++++++++++---
 ovn-nb.xml                   |   6 +
 ovn-sb.xml                   |  44 ++++
 tests/ovn-northd.at          | 346 ++++++++++++++++++------------
 tests/ovn.at                 |  68 +++---
 tests/system-ovn.at          | 184 +++++++++++++++-
 utilities/ovn-trace.c        |   4 +
 14 files changed, 1266 insertions(+), 221 deletions(-)

-- 
2.37.3

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