On Wednesday, 10 January 2018 03:31:54 UTC+1, Tameem Iftikhar wrote: > 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: 0.0.0.0/0udp:12345 > Allow > 1000 > default > 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> > wrote: > > > > down votefavorite > > > > 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.yamlapiVersion: 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 > 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. > > To post to this group, send email to kubernet...@googlegroups.com. > > Visit this group at https://groups.google.com/group/kubernetes-users. > > For more options, visit https://groups.google.com/d/optout.
Hi Tameem, Did you ever solve this? I am going to try the same thing but I want to know first if there is any hard limitation. Thanks -- 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.
