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Added comment on how to use ImplementedElsewhere

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This commit is contained in:
Pavithra Ramesh 2019-07-31 16:15:20 -07:00
parent dbfc876e83
commit 3244e5da5a
1 changed files with 6 additions and 0 deletions
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6
staging/src/k8s.io/cloud-provider/cloud.go
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@ -104,6 +104,12 @@ func GetInstanceProviderID(ctx context.Context, cloud Interface, nodeName types.
}
// LoadBalancer is an abstract, pluggable interface for load balancers.
// PR https://github.com/kubernetes/kubernetes/pull/80660 added support for cloud providers to return an error
// ImplementedElsewhere. This error is used to indicate that the loadbalancer implementation is handled outside of
// cloud provider, maybe in a different controller.
// In order to use this correctly, the cloud-provider implementation needs to return "NotFound"
// for GetLoadBalancer and empty string for GetLoadBalancerName. EnsureLoadBalancer and UpdateLoadBalancer need to
// return ImplementedElsewhere error. EnsureLoadBalancerDeleted can return ImplementedElsewhere as well.
type LoadBalancer interface {
// TODO: Break this up into different interfaces (LB, etc) when we have more than one type of service
// GetLoadBalancer returns whether the specified load balancer exists, and