ExternallyAccessible checks if service is externally accessible.

GetLoadBalancerSourceRanges first try to parse and verify LoadBalancerSourceRanges field from a service.

IsAllowAll checks whether the utilnet.IPNet allows traffic from 0.0.0.0/0.

NeedsHealthCheck checks if service needs health check.

RequestsOnlyLocalTraffic checks if service requests OnlyLocal traffic.