How to list names of all pods serving traffic behind a service in kubernetes

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I want to list names of all pods which are actually serving traffic behind a kubernetes service.My question is how to achieve this by executing a single kubectl command.


There are two ways to list the pods behind a service.

The easier way but with two commands

Find the selector by running the below command

kubectl get services -o=wide

Output:

NAME                  TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE   SELECTOR
hello-world-service   ClusterIP   172.21.xxx.xx   <none>        80/TCP    13m   run=nginx

Pass the selector to the command below

kubectl get pods --selector=run=nginx -o=name

To see the exact pod names without pod/

kubectl get pods --selector=run=nginx  --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}'

In a single command but using the endpoints information for the service hello-world-service

kubectl get endpoints hello-world-service -o=jsonpath='{.subsets[*].addresses[*].ip}' | tr ' ' '\n' | kubectl get pods --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}'

Show "real" Pods running behind a service � Issue #1317 , Issue details The Service details page is listing the pods behind a Service. Problem is, it looks like the pods are being served by the service, which is It's nice to see all the Pods matching the selector, but it would also be great kubectl get endpoints --namespace kube-system NAME ENDPOINTS AGE� The complete command would be kubectl get pod --all-namespaces -o wide, this will give all the details including node information. To list down pods for a particular namespace kubectl get pod -n YOUR_NAMESPACE -o wide. Hope this helps. – iamabhishek May 22 at 5:51


This should work, "-o=name" is for displaying only pod name.

kubectl get pods -o=name --all-namespaces | grep {service-name}

Replace {service-name} with your service name

Connecting Applications with Services, Kubernetes gives every pod its own cluster-private IP address, so you do apiVersion: apps/v1 kind: Deployment metadata: name: my-nginx spec: accepts traffic on, port : is the abstracted Service port, which can be any port View Service API object to see the list of supported fields in service definition. Secure traffic between pods using network policies in Azure Kubernetes Service (AKS) 05/06/2019; 12 minutes to read +9; In this article. When you run modern, microservices-based applications in Kubernetes, you often want to control which components can communicate with each other.


This command worked

kubectl get ep servicename -o=jsonpath='{.subsets[*].addresses[*].ip}' | tr ' ' '\n' | xargs -I % kubectl get pods -o=name --field-selector=status.podIP=%

Service, Motivation Kubernetes PodsA Pod represents a set of running containers in your cluster. The name of a Service object must be a valid DNS label name. Every node in a Kubernetes cluster runs a kube-proxy . kube-proxy is In order for client traffic to reach instances behind an NLB, the Node security� An application in the pod can use these variables to establish a connection to the service. DNS. Kubernetes automatically assigns DNS names to services. A special DNS record can be used to specify port numbers as well. To use DNS for service discovery, a Kubernetes cluster should be properly configured to support it.


Debug Services, Running commands in a Pod For many steps here you will want to see You can get the list of Pod IP addresses and test them directly. The example container used for this walk-through simply serves its Services in all Namespaces ("svc.cluster.local"), and lastly for names in the cluster ("cluster.local "). A Service enables network access to a set of Pods in Kubernetes. Services select Pods based on their labels. When a network request is made to the service, it selects all Pods in the cluster matching the service's selector, chooses one of them, and forwards the network request to it.


Using a Service to Expose Your App, Objectives Learn about a Service in Kubernetes Understand how labels When a worker node dies, the Pods running on the Node are also lost. A Service is defined using YAML (preferred) or JSON, like all Kubernetes objects. Exposing Pods to external traffic; Load balancing traffic across multiple� Issue details. The Service details page is listing the pods behind a Service. It seems like it's displaying the pods matching the selector. Problem is, it looks like the pods are being served by the service, which is not necessarily true.


Adding backend pods. To render the underlying service shards healthy, we need to add backend Pods behind them. This is currently done directly against the API endpoints of the underlying clusters (although in future the Federation server will be able to do all this for you with a single command, to save you the trouble).