This enhancement adds support for sending metrics data to a Gnocchi DB instance. The following new parameters for collectd composable service were added. If CollectdGnocchiAuthMode is set to 'simple', then CollectdGnocchiProtocol, CollectdGnocchiServer, CollectdGnocchiPort and CollectdGnocchiUser are taken into account for configuration. If CollectdGnocchiAuthMode is set to 'keystone', then CollectdGnocchiKeystone* parameters are taken into account for configuration. Following is a detailed description of added parameters: CollectdGnocchiAuthMode: type: string description: > Type of authentication Gnocchi server is using. Supported values are 'simple' and 'keystone'. default: 'simple' CollectdGnocchiProtocol: type: string description: API protocol Gnocchi server is using. default: 'http' CollectdGnocchiServer: type: string description: > The name or address of a gnocchi endpoint to which we should send metrics. default: nil CollectdGnocchiPort: type: number description: The port to which we will connect on the Gnocchi server. default: 8041 CollectdGnocchiUser: type: string description: > Username for authenticating to the remote Gnocchi server using simple authentication. default: nil CollectdGnocchiKeystoneAuthUrl: type: string description: Keystone endpoint URL to authenticate to. default: nil CollectdGnocchiKeystoneUserName: type: string description: Username for authenticating to Keystone. default: nil CollectdGnocchiKeystoneUserId: type: string description: User ID for authenticating to Keystone. default: nil CollectdGnocchiKeystonePassword: type: string description: Password for authenticating to Keystone default: nil CollectdGnocchiKeystoneProjectId: type: string description: Project ID for authenticating to Keystone. default: nil CollectdGnocchiKeystoneProjectName: type: string description: Project name for authenticating to Keystone. default: nil CollectdGnocchiKeystoneUserDomainId: type: string description: User domain ID for authenticating to Keystone. default: nil CollectdGnocchiKeystoneUserDomainName: type: string description: User domain name for authenticating to Keystone. default: nil CollectdGnocchiKeystoneProjectDomainId: type: string description: Project domain ID for authenticating to Keystone. default: nil CollectdGnocchiKeystoneProjectDomainName: type: string description: Project domain name for authenticating to Keystone. default: nil CollectdGnocchiKeystoneRegionName: type: string description: Region name for authenticating to Keystone. default: nil CollectdGnocchiKeystoneInterface: type: string description: Type of Keystone endpoint to authenticate to. default: nil CollectdGnocchiKeystoneEndpoint: type: string description: > Explicitly state Gnocchi server URL if you want to override Keystone value default: nil CollectdGnocchiResourceType: type: string description: > Default resource type created by the collectd-gnocchi plugin in Gnocchi to store hosts. default: 'collectd' CollectdGnocchiBatchSize: type: number description: Minimum number of values Gnocchi should batch. default: 10