[root@kubemaster ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
pod1deployment-c8b9c74cb-hkxmq 1/1 Running 0 12s 192.168.90.1 kubeworker1 <none> <none>
[root@kubemaster ~]# kubectl logs pod1deployment-c8b9c74cb-hkxmq
2020/05/16 23:29:56 Server listening on port 8080
[root@kubemaster ~]# kubectl get service -o wide
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 13m <none>
pod1service ClusterIP 10.101.174.159 <none> 80/TCP 16s creator=saiCurl on master node:
[root@kubemaster ~]# curl -m 2 -v -s http://10.101.174.159:80
* About to connect() to 10.101.174.159 port 80 (#0)
* Trying 10.101.174.159...
* Connection timed out after 2001 milliseconds
* Closing connection 0Curl on worker node 1 is sucessfull for cluster IP ( this is the node where pod is running )
[root@kubemaster ~]# ssh kubeworker1 curl -m 2 -v -s http://10.101.174.159:80
Hello, world!
Version: 1.0.0
Hostname: pod1deployment-c8b9c74cb-hkxmqCurl fails on other worker node as well :
[root@kubemaster ~]# ssh kubeworker2 curl -m 2 -v -s http://10.101.174.159:80
* About to connect() to 10.101.174.159 port 80 (#0)
* Trying 10.101.174.159...
* Connection timed out after 2001 milliseconds
* Closing connection 0First of all, you should always be using Service DNS instead of Cluster/dynamic IPs to access the application deployed. The service DNS would be < service-name >.< service-namespace >.svc.cluster.local, cluster.local is the default Kubernetes cluster name, if not changed otherwise.
Now coming to the service accessibility, it may be DNS issues. What you can do is try to check the kube-dns pod logs in kube-system namespace. Also, try to curl from a standalone pod. If that's working.
kubectl run --generator=run-pod/v1 bastion --image=busybox
kubectl exec -it bastion bash
curl -vvv pod1service.default.svc.cluster.local
If not the further questions would be, where is the cluster and how it was created?