add support for setting a system scope Fixes: #166

Co-authored-by: Igor Raits <igor.raits@gooddata.com>

Author: askarsabyrov

openstack/clientconfig/requests.go

@@ -644,6 +644,12 @@ func v3auth(cloud *Cloud, opts *ClientOpts) (*gophercloud.AuthOptions, error) {
 		}
 	}
 
+	if cloud.AuthInfo.SystemScope == "" {
+		if v := env.Getenv(envPrefix + "SYSTEM_SCOPE"); v != "" {
+			cloud.AuthInfo.SystemScope = v
+		}
+	}
+
 	// Build a scope and try to do it correctly.
 	// https://github.com/openstack/os-client-config/blob/master/os_client_config/config.py#L595
 	scope := new(gophercloud.AuthScope)
@@ -660,6 +666,9 @@ func v3auth(cloud *Cloud, opts *ClientOpts) (*gophercloud.AuthOptions, error) {
 			} else if cloud.AuthInfo.DomainName != "" {
 				scope.DomainName = cloud.AuthInfo.DomainName
 			}
+			if cloud.AuthInfo.SystemScope != "" {
+				scope.System = true
+			}
 		} else {
 			// If Domain* is set, but UserDomain* or ProjectDomain* aren't,
 			// then use Domain* as the default setting.

openstack/clientconfig/results.go

@@ -78,6 +78,9 @@ type AuthInfo struct {
 	// Application Credential secret to login with.
 	ApplicationCredentialSecret string `yaml:"application_credential_secret,omitempty" json:"application_credential_secret,omitempty"`
 
+	// SystemScope is a system information to scope to.
+	SystemScope string `yaml:"system_scope,omitempty" json:"system_scope,omitempty"`
+
 	// ProjectName is the common/human-readable name of a project.
 	// Users can be scoped to a project.
 	// ProjectName on its own is not enough to ensure a unique scope. It must