Kubernetes version: v1.10.3
Docker version: 17.03.2-ce
Operating system and kernel: Centos 7
Steps to Reproduce: https://kubernetes.io/docs/tasks/access-application-cluster/service-access-application-cluster/
Results:
[root@rd07 rd]# kubectl describe services example-service
Name: example-service
Namespace: default
Labels: run=load-balancer-example
Annotations:
Selector: run=load-balancer-example
Type: NodePort
IP: 10.108.214.162
Port: 9090/TCP
TargetPort: 9090/TCP
NodePort: 31105/TCP
Endpoints: 192.168.1.23:9090,192.168.1.24:9090
Session Affinity: None
External Traffic Policy: Cluster
Events:
Expected:
Expect to be able to curl the cluster ip defined in the kubernetes service
I'm not exactly sure which is the so called "public-node-ip", so I tried every related ip address, only when using the master ip as the "public-node-ip" it shows "No route to host".
I used "netstat" to check if the endpoint is listened.
I tried "https://github.com/rancher/rancher/issues/6139" to flush my iptables, and it was not working at all.
I tried "https://kubernetes.io/docs/tasks/debug-application-cluster/debug-service/", "nslookup hostnames.default" is not working.
The services seems working perfectly fine, but the services still cannot be accessed.
I'm using "calico" and the "flannel" was also tried.
I tried so many tutorials of apply services, they all cannot be accessed.
I'm new to kubernetes, plz if anyone could help me.
My k8s cluster is 1 master and 1 node.
The service pod is running on the node.
So I used http://nodeip:31105, it shows "Hello Kubernetes!".
But http://masterip:31105 still not working, is it suppose to be right?
I checked the endpoint listen, 31105 is listened on master.
If you are on any public cloud you are not supposed to get public ip address at ip a command. But even though the port will be exposed to 0.0.0.0:31105
Here is the sample file you can verify for your configuration:
apiVersion: v1
kind: Service
metadata:
labels:
k8s-app: app-name
name: bss
namespace: default
spec:
externalIPs:
- 172.16.2.2
- 172.16.2.3
- 172.16.2.4
externalTrafficPolicy: Cluster
ports:
- port: 9090
protocol: TCP
targetPort: 9090
selector:
k8s-app: bss
sessionAffinity: ClientIP
type: LoadBalancer
status:
loadBalancer: {}Just replace your <private-ip> at externalIPs: and do curl your public ip with your node port.
If you are using any cloud to deploy application, Also verify configuration from cloud security groups/firewall for opening port.
Hope this may help.
Thank you!