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kubectl describe services kube-dns --namespace kube-system
Name: kube-dns
Namespace: kube-system
Labels: addonmanager.kubernetes.io/mode=Reconcile
k8s-app=kube-dns
kubernetes.io/cluster-service=true
kubernetes.io/name=KubeDNS
Annotations: kubectl.kubernetes.io/last-applied-configuration:
{"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"labels":{"addonmanager.kubernetes.io/mode":"Reconcile","k8s-app":"kube-d...
Selector: k8s-app=kube-dns
Type: ClusterIP
IP: 10.96.5.5
Port: dns 53/UDP
TargetPort: 53/UDP
Endpoints: 10.244.1.21:53,10.244.1.23:53
Port: dns-tcp 53/TCP
TargetPort: 53/TCP
Endpoints: 10.244.1.21:53,10.244.1.23:53
Session Affinity: None
Events: <none>
[opc@test ~]$
, kubectl describe svc my-api
[opc@test ~]$ kubectl describe svc springbootapp-demo-service
Name: springbootapp-demo-service
Namespace: default
Labels: <none>
Annotations: <none>
Selector: app=app
Type: LoadBalancer
IP: 10.96.157.177
LoadBalancer Ingress: 132.145.235.116
Port: <unset> 80/TCP
TargetPort: 8035/TCP
NodePort: <unset> 30963/TCP
Endpoints: 10.244.0.26:8035,10.244.0.27:8035,10.244.0.30:8035 + 1 more...
Session Affinity: None
External Traffic Policy: Cluster
Events: <none>
Now when i exec(kubectl exec -it **Pod) to a pod and wget the other pod by FQDN it's not reached. I also connected a busy-box image to debug the kube-dns networking between pods.
Exec to the pod takes to prompt as kubectl exec -it nodejs-deployment-6bffdcb99c-lf8gn sh and tried to wget below end point dummy but unreachable though IP is looked up.
wget http://springbootapp-demo-service/demo/test
Connecting to springbootapp-demo-service(10.96.157.177:8035)
This has been fixed now by renaming the selector lebel in deployment yml to unique name as they are in default name space
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