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tssurya avatar tssurya commented on August 23, 2024

Hi @viveksinghggits !

Right so the logging indicates there is a default deny ACL for egress traffic in the namespace where the pod with IP a.b.c.233:44064 lives and so a syn packet going from this podIP towards a.0.b.45:6443 is getting dropped.

So it mostly has to be a containerPort or one of the port types defined on the podSpec for one of the containers.

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viveksinghggits avatar viveksinghggits commented on August 23, 2024

@tssurya Right, I understand. But the problem is the pod spec does't actually have a port specified and the reason is, it's not a long living pod we are not running any service (that needs to be exposed) in the pod. We create it to just run two commands. And then the pod completes/terminates. None of those two commands communicate with kueb-apiserver. And that is what's puzzling me.

2024-03-12T20:58:09.469Z|00575|acl_log(ovn_pinctrl0)|INFO|name="mongodb-logical_egressDefaultDeny", verdict=drop, severity=alert, direction=from-lport: tcp,vlan_tci=0x0000,dl_src=0a:58:0a:83:00:70,dl_dst=0a:58:0a:83:00:01,nw_src=a.b.c.112,nw_dst=d.e.f.42,nw_tos=0,nw_ecn=0,nw_ttl=64,nw_frag=no,tp_src=49562,tp_dst=6443,tcp_flags=syn

k get pods -n mongodb-logical kanister-job-wtkfb -owide
k eNAME                 READY   STATUS    RESTARTS   AGE   IP             NODE                                        NOMINATED NODE   READINESS GATES
kanister-job-wtkfb   1/1     Running   0          35s   a.b.c.112   ip-defg.zone.compute.internal   <none>           <none>

k exec -it -n mongodb-logical kanister-job-wtkfb -- bash
root@kanister-job-wtkfb:/# netstat -tulpn | grep :49562
root@kanister-job-wtkfb:/# cat /proc/net/tcp
  sl  local_address rem_address   st tx_queue rx_queue tr tm->when retrnsmt   uid  timeout inode

And podspec is here that doesn't actually have the port specified.

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github-actions avatar github-actions commented on August 23, 2024

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 5 days.

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