Added comment for pod.UID usage

Signed-off-by: Patryk Strusiewicz-Surmacki <patryk-pawel.strusiewicz-surmacki@external.telekom.de>
cybozu-go · Sep 24, 2024 · be5d0cc · be5d0cc
1 parent 122f2fe
commit be5d0cc
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/v2/pkg/nodenet/pod.go b/v2/pkg/nodenet/pod.go
@@ -464,6 +464,10 @@ func (pn *podNetwork) Update(podIPv4, podIPv6 net.IP, hook SetupHook, pod *corev
 				}
 			}
 		} else {
+			// We need to bind PodNetConf with Pod. When Coil is a primary CNI IP address can be used for that.
+			// However different CNIs manage IP addresses diferently, therefore, in egress-only mode instead of
+			// storing container's ID in ContainerId, we store pod's UID there to be able to identify pod that was
+			// used to create particular PodNetConf.
 			if c.ContainerId == string(pod.UID) {
 				netNsPath, err = getNetNsPath(c.HostVethName)
 				if err != nil {