Automated cherry pick of #3360: Realize Egress for a Pod once its network is created #3378
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Previously antrea-controller included a Pod in an EgressGroup only when its IP has been presented in K8s API. If a Pod tries to access external right after it's up, Node IP will be used as the SNAT IP even when an Egress applying to it has been created because its Pod IP may haven't been reported to K8s API or antrea-controller may haven't included the Pod in the EgressGroup. This patch fixes it by making CNIServer notify EgressController that it has processed CNI ADD request of a Pod, then EgressController can reconcile the corresponding Egress immediately, instead of waiting for the Pod to be reported to K8s API. As NetworkPolicyController relies on that event as well, we introduce a channel implementation which supports multiple subscribers. Fixes antrea-io#3361 Signed-off-by: Quan Tian <[email protected]>
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Codecov Report
@@ Coverage Diff @@
## release-1.5 #3378 +/- ##
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- Coverage 59.89% 52.82% -7.07%
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Files 331 464 +133
Lines 28470 54704 +26234
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+ Hits 17052 28899 +11847
- Misses 9542 23317 +13775
- Partials 1876 2488 +612
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jianjuns
approved these changes
Mar 2, 2022
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Cherry pick of #3360 on release-1.5.
#3360: Realize Egress for a Pod once its network is created
For details on the cherry pick process, see the cherry pick requests page.