Hello, Thanks for the response. I just tried the exact same thing on google kubernetes engine. Created a two node cluster and pointed kubectl towards it:
*➜ **~* kubectl get svc NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes 10.11.240.1 <none> 443/TCP 6m udp 10.11.249.164 35.225.148.180 12345:31357/UDP 3m *➜ **~* And if I try telnet or netcat, in both cases I can't access the port. It just hangs. *➜ * *✗* nc -u 35.225.148.180 12345 *➜ * *✗* telnet 35.225.148.180 12345 Trying 35.225.148.180... telnet: connect to address 35.225.148.180: Operation timed out telnet: Unable to connect to remote host In firewall rules in Google Cloud console I see the following rule: k8s-fw-a0--------- gke-cluster-1-944afe1b-node IP ranges: 0.0.0.0/0 udp:12345 Allow 1000 default <https://console.cloud.google.com/networking/networks/details/default?project=backend-kubernetes> It seems as if creating a UDP load balancer in google cloud is not opening the port properly. Or the firewall rules are not working properly. On Tuesday, January 9, 2018 at 3:59:39 PM UTC-5, Tim Hockin wrote: > > Make sure all firewalls are open? > > I just tested it and it works: > > ``` > $ kubectl run udp --image=ubuntu -- bash -c "while true; do sleep 100000; > done" > deployment "udp" created > > $ kubectl expose deployment udp --port=12345 --protocol=UDP > --type=LoadBalancer > service "udp" exposed > ``` > > Then I got the IP from `get svc`. I used `kubectl exec -ti` to exec into > my pod and run `nc -l -p 12345 -u` in one terminal and I sent bytes to it > via `netcat -u <public ip> 12345`. > > Tim > > On Tue, Jan 9, 2018 at 12:03 PM, Tameem Iftikhar <tameemif...@gmail.com > <javascript:>> wrote: > >> >> down votefavorite >> <https://stackoverflow.com/questions/48171383/kubernetes-udp-service-not-running-with-google-cloud-load-balancer#> >> >> I am trying to run a very simple UDP service in kubernetes on Google >> Cloud but am unable to access the port I am exposing to the internet. Here >> is the deployment and service file: >> >> Deployment.yaml >> >> apiVersion: extensions/v1beta1 >> kind: Deployment >> metadata: >> name: udp-server-deployment >> spec: >> replicas: 2 >> template: >> metadata: >> labels: >> name: udp-server >> spec: >> containers: >> - name: udp-server >> image: jpoon/udp-server >> imagePullPolicy: Always >> ports: >> - containerPort: 10001 >> protocol: UDP >> >> Service.yaml: >> >> apiVersion: v1 >> kind: Service >> metadata: >> name: udp-server-service >> labels: >> app: udp-server >> spec: >> type: LoadBalancer >> ports: >> - port: 10001 >> protocol: UDP >> selector: >> name: udp-server >> >> This create the load balancer in google cloud with the correct port >> exposed. Like so: >> >> Load balancer <https://i.stack.imgur.com/OHNeW.png> >> >> But when i try to access the port it's unaccessible. I have tried a few >> variations in GCE to expose udp port but none seem to be working. >> >> ➜ udp-example telnet 35.192.59.72 10001 >> Trying 35.192.59.72... >> telnet: connect to address 35.192.59.72: Connection refused >> telnet: Unable to connect to remote host >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Kubernetes user discussion and Q&A" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to kubernetes-use...@googlegroups.com <javascript:>. >> To post to this group, send email to kubernet...@googlegroups.com >> <javascript:>. >> Visit this group at https://groups.google.com/group/kubernetes-users. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "Kubernetes user discussion and Q&A" group. To unsubscribe from this group and stop receiving emails from it, send an email to kubernetes-users+unsubscr...@googlegroups.com. To post to this group, send email to kubernetes-users@googlegroups.com. Visit this group at https://groups.google.com/group/kubernetes-users. For more options, visit https://groups.google.com/d/optout.
