// V3EndpointURL discovers the endpoint URL for a specific service from a Catalog acquired
// during the v3 identity service. The specified EndpointOpts are used to identify a unique,
// unambiguous endpoint to return. It's an error both when multiple endpoints match the provided
// criteria and when none do. The minimum that can be specified is a Type, but you will also often
// need to specify a Name and/or a Region depending on what's available on your OpenStack
// deployment.
func V3EndpointURL(catalog *tokens3.ServiceCatalog, opts gophercloud.EndpointOpts) (string, error) {
// Extract Endpoints from the catalog entries that match the requested Type, Interface,
// Name if provided, and Region if provided.
var endpoints = make([]tokens3.Endpoint, 0, 1)
for _, entry := range catalog.Entries {
if (entry.Type == opts.Type) && (opts.Name == "" || entry.Name == opts.Name) {
for _, endpoint := range entry.Endpoints {
if opts.Availability != gophercloud.AvailabilityAdmin &&
opts.Availability != gophercloud.AvailabilityPublic &&
opts.Availability != gophercloud.AvailabilityInternal {
return "", fmt.Errorf("Unexpected availability in endpoint query: %s", opts.Availability)
}
if (opts.Availability == gophercloud.Availability(endpoint.Interface)) &&
(opts.Region == "" || endpoint.Region == opts.Region) {
endpoints = append(endpoints, endpoint)
}
}
}
}
// Report an error if the options were ambiguous.
if len(endpoints) > 1 {
return "", fmt.Errorf("Discovered %d matching endpoints: %#v", len(endpoints), endpoints)
}
// Extract the URL from the matching Endpoint.
for _, endpoint := range endpoints {
return gophercloud.NormalizeURL(endpoint.URL), nil
}
// Report an error if there were no matching endpoints.
return "", gophercloud.ErrEndpointNotFound
}
//OpenstackEndpoint returns API endpoint for each service name
func OpenstackEndpoint(client *gophercloud.ServiceClient, endpointType, name, region, availability string) (interface{}, error) {
if availability == "" {
availability = "public"
}
return client.EndpointLocator(
gophercloud.EndpointOpts{
Type: endpointType,
Name: name,
Region: region,
Availability: gophercloud.Availability(availability),
})
}