I want to create a loadBalancer service on kubernetes that exposes a large range of ports. As you can't do that on kubernetes yet (https://github.com/kubernetes/kubernetes/issues/23864).
I have manually entered a range of port by having a yaml file in the following format:
apiVersion: v1
kind: Service
metadata:
name: service
spec:
ports:
- name: port10000
port: 10000
protocol: UDP
.
.
.
- name: port40000
port: 40000
protocol: UDP
selector:
app: app-label
type: LoadBalancer
I get the following error:
Error from server (InternalError): error when creating "service-udp.yml": Internal error occurred: failed to allocate a nodePort: range is full
Is it possible to increase the range of ports available for a service? And if so, how?
This is controlled by the --service-node-port-range portRange argument to kube-apiserver - the way to change that depends on your environment.
Keep in mind that nodePorts are meant to be used by load balancers as building blocks. So what you are trying to do is most likely not the best practice.
Hope this helps..