Remove stale ClusterIP routes after Antrea restart

[hongliangl]

Fix #3131

Signed-off-by: Hongliang Liu lhongliang@vmware.com

[codecov-commenter]

Codecov Report

Merging #3465 (9db9985) into main (5a214e5) will decrease coverage by 10.10%.
The diff coverage is 37.73%.

@@             Coverage Diff             @@
##             main    #3465       +/-   ##
===========================================
- Coverage   65.56%   55.46%   -10.11%     
===========================================
  Files         278      392      +114     
  Lines       27750    53632    +25882     
===========================================
+ Hits        18195    29746    +11551     
- Misses       7628    21415    +13787     
- Partials     1927     2471      +544     

Flag	Coverage Δ
e2e-tests	53.23% <0.00%> (?)
integration-tests	38.21% <ø> (?)
kind-e2e-tests	55.24% <62.50%> (-0.05%)	⬇️
unit-tests	43.35% <ø> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/agent/route/route_linux.go	42.42% <37.73%> (-7.02%)	⬇️
pkg/controller/ipam/antrea_ipam_controller.go	26.26% <0.00%> (-54.02%)	⬇️
pkg/agent/cniserver/pod_configuration_linux.go	26.31% <0.00%> (-40.36%)	⬇️
pkg/controller/networkpolicy/endpoint_querier.go	61.46% <0.00%> (-29.97%)	⬇️
pkg/agent/cniserver/ipam/antrea_ipam_controller.go	51.90% <0.00%> (-28.10%)	⬇️
pkg/controller/egress/controller.go	62.19% <0.00%> (-26.26%)	⬇️
pkg/controller/ipam/validate.go	57.95% <0.00%> (-24.31%)	⬇️
pkg/controller/egress/store/egressgroup.go	36.20% <0.00%> (-23.52%)	⬇️
pkg/agent/util/iptables/lock.go	60.00% <0.00%> (-21.82%)	⬇️
pkg/controller/externalippool/validate.go	55.17% <0.00%> (-21.02%)	⬇️
... and 353 more

[hongliangl]

/test-all-features-conformance
/test-conformance
/test-e2e
/test-flexible-ipam-e2e
/test-multicluster-e2e
/test-networkpolicy
/test-windows-conformance
/test-windows-e2e
/test-windows-networkpolicy
/test-windows-proxyall-e2e
/test-integration

[antoninbas]

LGTM

[antoninbas]

/test-ipv6-e2e
/test-ipv6-only-e2e

[hongliangl]

/test-ipv6-e2e
/test-ipv6-only-e2e

[hongliangl]

/test-all-features-conformance
/test-conformance
/test-e2e
/test-flexible-ipam-e2e
/test-ipv6-conformance
/test-ipv6-e2e
/test-ipv6-networkpolicy
/test-ipv6-only-conformance
/test-ipv6-only-e2e
/test-ipv6-only-networkpolicy
/test-multicluster-e2e
/test-networkpolicy
/test-windows-conformance
/test-windows-e2e
/test-windows-networkpolicy
/test-windows-proxyall-e2e
/test-integration

[hongliangl]

/test-ipv6-e2e
/test-ipv6-only-conformance
/test-windows-conformance

[antoninbas]

LGTM

[antoninbas]

@hongliangl do you want to backport this to v1.6?

[hongliangl]

@antoninbas Done by #3565.

BTW, I got an error like the following when running hack/cherry-pick-pull.sh, so I made the PR manually.

Creating pull request for lhongliang:automated-cherry-pick-of-#3465-upstream-release-1.6 into release-1.6 in antrea-io/antrea

pull request create failed: GraphQL: Head sha can't be blank, Base sha can't be blank, Head repository can't be blank, No commits between antrea-io:release-1.6 and lhongliang:automated-cherry-pick-of-#3465-upstream-release-1.6, Head ref must be a branch, not all refs are readable (createPullRequest)