Create creates a DNS namespace (or uses an existing one) and creates a Service Discovery Service The Service Discovery ARN is returned so that it can be used to enable ECS Service Discovery.

Delete deletes resources for service discovery.

Update updates values for Service Discovery Only a few values on the SDS are available for update: DNS TTL and FailureThreshold.

CreateFunc is the interface/signature for Create This helps when writing code in other packages that need to mock Create (specifically it's a nicety that helps IDE features work).

DeleteFunc is the interface/signature for Delete This helps when writing code in other packages that need to mock Create (specifically it's a nicety that helps IDE features work).

UpdateFunc is the interface/signature for Create This helps when writing code in other packages that need to mock Update (specifically it's a nicety that helps IDE features work).