I'm trying to figure out how to run openvpn server running inside a pod using UDP protocol.
Since it's easier to test using http than openvpn connections, I have also nginx-container running inside that same pod as openvpn-container is.
I can get everything working inside the cluster but I cannot expose this nginx service to Internet using my elastic ip.
Network is Weave.
Kubernetes version is 1.6
I have set the externalIPs-field in the service.yaml to my elastic ip address. I cannot use type LoadBalancer since my protocol is UDP.
Service:
# kubectl describe service openvpn
Name: openvpn
Namespace: default
Labels: name=openvpn
Annotations: kubectl.kubernetes.io/last-applied-configuration={"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"labels":{"name":"openvpn"},"name":"openvpn","namespace":"default"},"spec":{"externalI...
Selector: name=openvpn
Type: NodePort
IP: 100.71.93.74
External IPs: <my_elastic_ip>
Port: openvpn 1194/UDP
NodePort: openvpn 30726/UDP
Endpoints: 100.120.0.1:1194
Port: http 80/TCP
NodePort: http 30000/TCP
Endpoints: 100.120.0.1:80
Session Affinity: None
Events: <none>
Endpoints
# kubectl get endpoints openvpn
NAME ENDPOINTS AGE
openvpn 100.120.0.1:80,100.120.0.1:1194 20h
I have followed through the https://kubernetes.io/docs/tasks/debug-application-cluster/debug-service/ and everything works inside the cluster.
I have allocated the elastic ip to this specific instance manually using AWS Console. All security groups are updated.
So is it even possible to connect to a pod inside a kubernetes cluster using a elastic ip attached to that host node? If it is, how to do that?