ovn-org / ovn-kubernetes / 9910132896

53%

master: 53%

Pull #4496

github

Delete stale masquerade subenet resources if subnet gets changed at day 2

This PR does following:

- Changes default masquerade subnet to 169.254.0.0/16(IPv4) and
fd69::/112(IPv6).

- Removes following linux resources if masquerade subnet gets changed:

  * Removes old V4HostMasqueradeIP and V6HostMasqueradeIP from bridge.

  * Removes stale neighbour entries V4OVNMasqueradeIP, V6OVNMasqueradeIP,
V4DummyNextHopMasqueradeIP and V6DummyNextHopMasqueradeIP if exists.

  * Removes stale masquerade route added by addMasqueradeRoute() function
while starting up the gateway.

  * Removes stale iptables rules created for masquerade subnet based
on ipForwarding and Gateway mode.

  * Removes logical router static route used by gateway router and
referencing old masquerade subnet.

  * Removes static mac binding for gateway router's rtoe logical port
referencing old masquerade subnet.

Signed-off-by: Arnab Ghosh <arnabghosh89@gmail.com>

120 of 294 new or added lines in 10 files covered. (40.82%)

29193 of 55664 relevant lines covered (52.45%)

98.59 hits per line