Exemplo n.º 1
0
// V2EndpointURL discovers the endpoint URL for a specific service from a ServiceCatalog acquired
// during the v2 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 V2EndpointURL(catalog *tokens2.ServiceCatalog, opts gophercloud.EndpointOpts) (string, error) {
	// Extract Endpoints from the catalog entries that match the requested Type, Name if provided, and Region if provided.
	var endpoints = make([]tokens2.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.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 appropriate URL from the matching Endpoint.
	for _, endpoint := range endpoints {
		switch opts.Availability {
		case gophercloud.AvailabilityPublic:
			return gophercloud.NormalizeURL(endpoint.PublicURL), nil
		case gophercloud.AvailabilityInternal:
			return gophercloud.NormalizeURL(endpoint.InternalURL), nil
		case gophercloud.AvailabilityAdmin:
			return gophercloud.NormalizeURL(endpoint.AdminURL), nil
		default:
			return "", fmt.Errorf("Unexpected availability in endpoint query: %s", opts.Availability)
		}
	}

	// Report an error if there were no matching endpoints.
	return "", gophercloud.ErrEndpointNotFound
}
Exemplo n.º 2
0
// V2EndpointURL discovers the endpoint URL for a specific service from a ServiceCatalog acquired
// during the v2 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 V2EndpointURL(catalog *tokens2.ServiceCatalog, opts gophercloud.EndpointOpts) (string, error) {
	// Extract Endpoints from the catalog entries that match the requested Type, Name if provided, and Region if provided.
	var endpoints = make([]tokens2.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.Region == "" || endpoint.Region == opts.Region {
					endpoints = append(endpoints, endpoint)
				}
			}
		}
	}

	// Report an error if the options were ambiguous.
	if len(endpoints) > 1 {
		return "", &ErrMultipleMatchingEndpointsV2{
			endpoints: endpoints,
			BaseError: &gophercloud.BaseError{
				Function: "openstack.V2EndpointURL",
			},
		}
	}

	// Extract the appropriate URL from the matching Endpoint.
	for _, endpoint := range endpoints {
		switch opts.Availability {
		case gophercloud.AvailabilityPublic:
			return gophercloud.NormalizeURL(endpoint.PublicURL), nil
		case gophercloud.AvailabilityInternal:
			return gophercloud.NormalizeURL(endpoint.InternalURL), nil
		case gophercloud.AvailabilityAdmin:
			return gophercloud.NormalizeURL(endpoint.AdminURL), nil
		default:
			return "", &ErrInvalidAvailabilityProvided{
				&gophercloud.InvalidInputError{
					BaseError: gophercloud.BaseError{
						Function: "openstack.V2EndpointURL",
					},
					Argument: "Availability",
					Value:    opts.Availability,
				},
			}
		}
	}

	// Report an error if there were no matching endpoints.
	return "", &ErrEndpointNotFound{
		BaseError: &gophercloud.BaseError{
			Function: "openstack.V2EndpointURL",
		},
	}
}
Exemplo n.º 3
0
// NewClient prepares an unauthenticated ProviderClient instance.
// Most users will probably prefer using the AuthenticatedClient function instead.
// This is useful if you wish to explicitly control the version of the identity service that's used for authentication explicitly,
// for example.
func NewClient(endpoint string) (*gophercloud.ProviderClient, error) {
	u, err := url.Parse(endpoint)
	if err != nil {
		return nil, err
	}
	hadPath := u.Path != ""
	u.Path, u.RawQuery, u.Fragment = "", "", ""
	base := u.String()

	endpoint = gophercloud.NormalizeURL(endpoint)
	base = gophercloud.NormalizeURL(base)

	if hadPath {
		return &gophercloud.ProviderClient{
			IdentityBase:     base,
			IdentityEndpoint: endpoint,
		}, nil
	}

	return &gophercloud.ProviderClient{
		IdentityBase:     base,
		IdentityEndpoint: "",
	}, nil
}