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Merge pull request #26790 from neha-viswanathan/26681-fix-target-port 

use targetPort instead of containerPort
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Kubernetes Prow Robot 2021-04-08 12:10:03 -07:00 committed by GitHub
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content/en/docs/tasks/debug-application-cluster/debug-application.md
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@ -140,24 +140,11 @@ kubectl get pods --selector=name=nginx,type=frontend
``` ```
to list pods that match this selector. Verify that the list matches the Pods that you expect to provide your Service. to list pods that match this selector. Verify that the list matches the Pods that you expect to provide your Service.
If the list of pods matches expectations, but your endpoints are still empty, it's possible that you don't
have the right ports exposed. If your service has a `containerPort` specified, but the Pods that are
selected don't have that port listed, then they won't be added to the endpoints list.
Verify that the pod's `containerPort` matches up with the Service's `targetPort` Verify that the pod's `containerPort` matches up with the Service's `targetPort`
#### Network traffic is not forwarded #### Network traffic is not forwarded
If you can connect to the service, but the connection is immediately dropped, and there are endpoints Please see [debugging service](/docs/tasks/debug-application-cluster/debug-service.md) for more information.
in the endpoints list, it's likely that the proxy can't contact your pods.
There are three things to
check:
* Are your pods working correctly? Look for restart count, and [debug pods](#debugging-pods).
* Can you connect to your pods directly? Get the IP address for the Pod, and try to connect directly to that IP.
* Is your application serving on the port that you configured? Kubernetes doesn't do port remapping, so if your application serves on 8080, the `containerPort` field needs to be 8080.
## {{% heading "whatsnext" %}} ## {{% heading "whatsnext" %}}