I am trying to configure firewall rules for kubernetes service to allow restricted access to my mongo pod when running a load balancer service. I would like to know how to specify the ip range because we have our own internal firewall?
When using a Service with spec.type: LoadBalancer, you can specify the IP ranges that are allowed to access the load balancer by using spec.loadBalancerSourceRanges. This field takes a list of IP CIDR ranges, which Kubernetes will use to configure firewall exceptions. This feature is currently supported on Google Compute Engine, Google Container Engine and AWS. This field will be ignored if the cloud provider does not support the feature.
This loadBalancerSourceRanges property should help in your case.