--- /dev/null
+module opnfv-promise {
+ namespace "urn:opnfv:promise";
+ prefix promise;
+
+ import complex-types { prefix ct; }
+ import ietf-yang-types { prefix yang; }
+ import ietf-inet-types { prefix inet; }
+ import access-control-models { prefix acm; }
+ import nfv-infrastructure { prefix nfvi; }
+
+ description
+ "OPNFV Promise Resource Reservation/Allocation controller module";
+
+ revision 2015-10-05 {
+ description "Complete coverage of reservation related intents";
+ }
+
+ revision 2015-08-06 {
+ description "Updated to incorporate YangForge framework";
+ }
+
+ revision 2015-04-16 {
+ description "Initial revision.";
+ }
+
+ feature reservation-service {
+ description "When enabled, provides resource reservation service";
+ }
+
+ feature multi-provider {
+ description "When enabled, provides resource management across multiple providers";
+ }
+
+ typedef reference-identifier {
+ description "defines valid formats for external reference id";
+ type union {
+ type yang:uuid;
+ type inet:uri;
+ type uint32;
+ }
+ }
+
+ grouping resource-utilization {
+ container capacity {
+ container total { description 'Conceptual container that should be extended'; }
+ container reserved { description 'Conceptual container that should be extended'; config false; }
+ container usage { description 'Conceptual container that should be extended'; config false; }
+ container available { description 'Conceptual container that should be extended'; config false; }
+ }
+ }
+
+ grouping temporal-resource-collection {
+ description
+ "Information model capturing resource-collection with start/end time window";
+
+ leaf start { type yang:date-and-time; }
+ leaf end { type yang:date-and-time; }
+
+ uses nfvi:resource-collection;
+ }
+
+ grouping resource-usage-request {
+ description
+ "Information model capturing available parameters to make a resource
+ usage request.";
+ reference "OPNFV-PROMISE, Section 3.4.1";
+
+ uses temporal-resource-collection {
+ refine elements {
+ description
+ "Reference to a list of 'pre-existing' resource elements that are
+ required for fulfillment of the resource-usage-request.
+
+ It can contain any instance derived from ResourceElement,
+ such as ServerInstances or even other
+ ResourceReservations. If the resource-usage-request is
+ accepted, the ResourceElement(s) listed here will be placed
+ into 'protected' mode as to prevent accidental removal.
+
+ If any of these resource elements become 'unavailable' due to
+ environmental or administrative activity, a notification will
+ be issued informing of the issue.";
+ }
+ }
+
+ leaf zone {
+ description "Optional identifier to an Availability Zone";
+ type instance-identifier { ct:instance-type nfvi:AvailabilityZone; }
+ }
+ }
+
+ grouping query-start-end-window {
+ container window {
+ description "Matches entries that are within the specified start/end time window";
+ leaf start { type yang:date-and-time; }
+ leaf end { type yang:date-and-time; }
+ leaf scope {
+ type enumeration {
+ enum "exclusive" {
+ description "Matches entries that start AND end within the window";
+ }
+ enum "inclusive" {
+ description "Matches entries that start OR end within the window";
+ }
+ }
+ default "inclusive";
+ }
+ }
+ }
+
+ grouping query-resource-collection {
+ uses query-start-end-window {
+ description "Match for ResourceCollection(s) that are within the specified start/end time window";
+ }
+ leaf-list without {
+ description "Excludes specified collection identifiers from the result";
+ type instance-identifier { ct:instance-type ResourceCollection; }
+ }
+ leaf show-utilization { type boolean; default true; }
+ container elements {
+ leaf-list some {
+ description "Query for ResourceCollection(s) that contain some or more of these element(s)";
+ type instance-identifier { ct:instance-type nfvi:ResourceElement; }
+ }
+ leaf-list every {
+ description "Query for ResourceCollection(s) that contain all of these element(s)";
+ type instance-identifier { ct:instance-type nfvi:ResourceElement; }
+ }
+ }
+ }
+
+ grouping common-intent-output {
+ leaf result {
+ type enumeration {
+ enum "ok";
+ enum "conflict";
+ enum "error";
+ }
+ }
+ leaf message { type string; }
+ }
+
+ grouping utilization-output {
+ list utilization {
+ key 'timestamp';
+ leaf timestamp { type yang:date-and-time; }
+ leaf count { type int16; }
+ container capacity { uses nfvi:resource-capacity; }
+ }
+ }
+
+ ct:complex-type ResourceCollection {
+ ct:extends nfvi:ResourceContainer;
+ ct:abstract true;
+
+ description
+ "Describes an abstract ResourceCollection data model, which represents
+ a grouping of capacity and elements available during a given
+ window in time which must be extended by other resource
+ collection related models";
+
+ leaf start { type yang:date-and-time; }
+ leaf end { type yang:date-and-time; }
+
+ leaf active {
+ config false;
+ description
+ "Provides current state of this record whether it is enabled and within
+ specified start/end time";
+ type boolean;
+ }
+ }
+
+ ct:complex-type ResourcePool {
+ ct:extends ResourceCollection;
+
+ description
+ "Describes an instance of an active ResourcePool record, which
+ represents total available capacity and elements from a given
+ source.";
+
+ leaf source {
+ type instance-identifier {
+ ct:instance-type nfvi:ResourceContainer;
+ require-instance true;
+ }
+ mandatory true;
+ }
+
+ refine elements {
+ // following 'must' statement applies to each element
+ // NOTE: just a non-working example for now...
+ must "boolean(/source/elements/*[@id=id])" {
+ error-message "One or more of the ResourceElement(s) does not exist in the provider to be reserved";
+ }
+ }
+ }
+
+ ct:complex-type ResourceReservation {
+ ct:extends ResourceCollection;
+
+ description
+ "Describes an instance of an accepted resource reservation request,
+ created usually as a result of 'create-reservation' request.
+
+ A ResourceReservation is a derived instance of a generic
+ ResourceCollection which has additional parameters to map the
+ pool(s) that were referenced to accept this reservation as well
+ as to track allocations made referencing this reservation.
+
+ Contains the capacities of various resource attributes being
+ reserved along with any resource elements that are needed to be
+ available at the time of allocation(s).";
+
+ reference "OPNFV-PROMISE, Section 3.4.1";
+
+ leaf created-on { type yang:date-and-time; config false; }
+ leaf modified-on { type yang:date-and-time; config false; }
+
+ leaf-list pools {
+ config false;
+ description
+ "Provides list of one or more pools that were referenced for providing
+ the requested resources for this reservation. This is an
+ important parameter for informing how/where allocation
+ requests can be issued using this reservation since it is
+ likely that the total reserved resource capacity/elements are
+ made availble from multiple sources.";
+ type instance-identifier {
+ ct:instance-type ResourcePool;
+ require-instance true;
+ }
+ }
+
+ container remaining {
+ config false;
+ description
+ "Provides visibility into total remaining capacity for this
+ reservation based on allocations that took effect utilizing
+ this reservation ID as a reference.";
+
+ uses nfvi:resource-capacity;
+ }
+
+ leaf-list allocations {
+ config false;
+ description
+ "Reference to a collection of consumed allocations referencing
+ this reservation.";
+ type instance-identifier {
+ ct:instance-type ResourceAllocation;
+ require-instance true;
+ }
+ }
+ }
+
+ ct:complex-type ResourceAllocation {
+ ct:extends ResourceCollection;
+
+ description
+ "A ResourceAllocation record denotes consumption of resources from a
+ referenced ResourcePool.
+
+ It does not reflect an accepted request but is created to
+ represent the actual state about the ResourcePool. It is
+ created once the allocation(s) have successfully taken effect
+ on the 'source' of the ResourcePool.
+
+ The 'priority' state indicates the classification for dealing
+ with resource starvation scenarios. Lower priority allocations
+ will be forcefully terminated to allow for higher priority
+ allocations to be fulfilled.
+
+ Allocations without reference to an existing reservation will
+ receive the lowest priority.";
+
+ reference "OPNFV-PROMISE, Section 3.4.3";
+
+ leaf reservation {
+ description "Reference to an existing reservation identifier (optional)";
+
+ type instance-identifier {
+ ct:instance-type ResourceReservation;
+ require-instance true;
+ }
+ }
+
+ leaf pool {
+ description "Reference to an existing resource pool from which allocation is drawn";
+
+ type instance-identifier {
+ ct:instance-type ResourcePool;
+ require-instance true;
+ }
+ }
+
+ container instance-ref {
+ config false;
+ description
+ "Reference to actual instance identifier of the provider/server for this allocation";
+ leaf provider {
+ type instance-identifier { ct:instance-type ResourceProvider; }
+ }
+ leaf server { type yang:uuid; }
+ }
+
+ leaf priority {
+ config false;
+ description
+ "Reflects current priority level of the allocation according to classification rules";
+ type enumeration {
+ enum "high" { value 1; }
+ enum "normal" { value 2; }
+ enum "low" { value 3; }
+ }
+ default "normal";
+ }
+ }
+
+ ct:complex-type ResourceFlavor {
+ description "currently NOT an extension of ResourceElement.";
+ key "id";
+ leaf id { type string; }
+ leaf name { type string; }
+ leaf disk { type uint32; units 'GB'; default 0; }
+ leaf ram { type uint32; units 'MB'; default 0; }
+ leaf vcpus { type uint16; default 0; }
+ }
+
+ ct:complex-type ResourceProvider {
+ ct:extends nfvi:ResourceContainer;
+
+ key "name";
+ leaf token { type string; mandatory true; }
+
+ container services { // read-only
+ config false;
+ container compute {
+ leaf endpoint { type inet:uri; }
+ ct:instance-list flavors { ct:instance-type ResourceFlavor; }
+ }
+ }
+
+ leaf-list pools {
+ config false;
+ description
+ "Provides list of one or more pools that are referencing this provider.";
+
+ type instance-identifier {
+ ct:instance-type ResourcePool;
+ require-instance true;
+ }
+ }
+ }
+
+ // MAIN CONTAINER
+ container promise {
+
+ uses resource-utilization {
+ description "Describes current state info about capacity utilization info";
+
+ augment "capacity/total" { uses nfvi:resource-capacity; }
+ augment "capacity/reserved" { uses nfvi:resource-capacity; }
+ augment "capacity/usage" { uses nfvi:resource-capacity; }
+ augment "capacity/available" { uses nfvi:resource-capacity; }
+ }
+
+ ct:instance-list providers {
+ if-feature multi-provider;
+ description "Aggregate collection of all registered ResourceProvider instances for Promise resource management service";
+ ct:instance-type ResourceProvider;
+ }
+
+ ct:instance-list pools {
+ if-feature reservation-service;
+ description "Aggregate collection of all ResourcePool instances";
+ ct:instance-type ResourcePool;
+ }
+
+ ct:instance-list reservations {
+ if-feature reservation-service;
+ description "Aggregate collection of all ResourceReservation instances";
+ ct:instance-type ResourceReservation;
+ }
+
+ ct:instance-list allocations {
+ description "Aggregate collection of all ResourceAllocation instances";
+ ct:instance-type ResourceAllocation;
+ }
+
+ container policy {
+ container reservation {
+ leaf max-future-start-range {
+ description
+ "Enforce reservation request 'start' time is within allowed range from now";
+ type uint16 { range 0..365; }
+ units "days";
+ }
+ leaf max-future-end-range {
+ description
+ "Enforce reservation request 'end' time is within allowed range from now";
+ type uint16 { range 0..365; }
+ units "days";
+ }
+ leaf max-duration {
+ description
+ "Enforce reservation duration (end-start) does not exceed specified threshold";
+ type uint16;
+ units "hours";
+ default 8760; // for now cap it at max one year as default
+ }
+ leaf expiry {
+ description
+ "Duration in minutes from start when unallocated reserved resources
+ will be released back into the pool";
+ type uint32;
+ units "minutes";
+ }
+ }
+ }
+ }
+
+ //-------------------
+ // INTENT INTERFACE
+ //-------------------
+
+ // RESERVATION INTENTS
+ rpc create-reservation {
+ if-feature reservation-service;
+ description "Make a request to the reservation system to reserve resources";
+ input {
+ uses resource-usage-request;
+ }
+ output {
+ uses common-intent-output;
+ leaf reservation-id {
+ type instance-identifier { ct:instance-type ResourceReservation; }
+ }
+ }
+ }
+
+ rpc update-reservation {
+ description "Update reservation details for an existing reservation";
+ input {
+ leaf reservation-id {
+ type instance-identifier {
+ ct:instance-type ResourceReservation;
+ require-instance true;
+ }
+ mandatory true;
+ }
+ uses resource-usage-request;
+ }
+ output {
+ uses common-intent-output;
+ }
+ }
+
+ rpc cancel-reservation {
+ description "Cancel the reservation and be a good steward";
+ input {
+ leaf reservation-id {
+ type instance-identifier { ct:instance-type ResourceReservation; }
+ mandatory true;
+ }
+ }
+ output {
+ uses common-intent-output;
+ }
+ }
+
+ rpc query-reservation {
+ if-feature reservation-service;
+ description "Query the reservation system to return matching reservation(s)";
+ input {
+ leaf zone { type instance-identifier { ct:instance-type nfvi:AvailabilityZone; } }
+ uses query-resource-collection;
+ }
+ output {
+ leaf-list reservations { type instance-identifier { ct:instance-type ResourceReservation; } }
+ uses utilization-output;
+ }
+ }
+
+ // CAPACITY INTENTS
+ rpc increase-capacity {
+ description "Increase total capacity for the reservation system between a window in time";
+ input {
+ uses temporal-resource-collection;
+ leaf source {
+ type instance-identifier {
+ ct:instance-type nfvi:ResourceContainer;
+ }
+ }
+ }
+ output {
+ uses common-intent-output;
+ leaf pool-id {
+ type instance-identifier { ct:instance-type ResourcePool; }
+ }
+ }
+ }
+
+ rpc decrease-capacity {
+ description "Decrease total capacity for the reservation system between a window in time";
+ input {
+ uses temporal-resource-collection;
+ leaf source {
+ type instance-identifier {
+ ct:instance-type nfvi:ResourceContainer;
+ }
+ }
+ }
+ output {
+ uses common-intent-output;
+ leaf pool-id {
+ type instance-identifier { ct:instance-type ResourcePool; }
+ }
+ }
+ }
+
+ rpc query-capacity {
+ description "Check available capacity information about a specified resource collection";
+ input {
+ leaf capacity {
+ type enumeration {
+ enum 'total';
+ enum 'reserved';
+ enum 'usage';
+ enum 'available';
+ }
+ default 'available';
+ }
+ leaf zone { type instance-identifier { ct:instance-type nfvi:AvailabilityZone; } }
+ uses query-resource-collection;
+ // TBD: additional parameters for query-capacity
+ }
+ output {
+ leaf-list collections { type instance-identifier { ct:instance-type ResourceCollection; } }
+ uses utilization-output;
+ }
+ }
+
+ // ALLOCATION INTENTS (should go into VIM module in the future)
+ rpc create-instance {
+ description "Create an instance of specified resource(s) utilizing capacity from the pool";
+ input {
+ leaf provider-id {
+ if-feature multi-provider;
+ type instance-identifier { ct:instance-type ResourceProvider; require-instance true; }
+ }
+ leaf name { type string; mandatory true; }
+ leaf image {
+ type reference-identifier;
+ mandatory true;
+ }
+ leaf flavor {
+ type reference-identifier;
+ mandatory true;
+ }
+ leaf-list networks {
+ type reference-identifier;
+ description "optional, will assign default network if not provided";
+ }
+
+ // TODO: consider supporting a template-id (such as HEAT) for more complex instantiation
+
+ leaf reservation-id {
+ type instance-identifier { ct:instance-type ResourceReservation; require-instance true; }
+ }
+ }
+ output {
+ uses common-intent-output;
+ leaf instance-id {
+ type instance-identifier { ct:instance-type ResourceAllocation; }
+ }
+ }
+ }
+
+ rpc destroy-instance {
+ description "Destroy an instance of resource utilization and release it back to the pool";
+ input {
+ leaf instance-id {
+ type instance-identifier { ct:instance-type ResourceAllocation; require-instance true; }
+ }
+ }
+ output {
+ uses common-intent-output;
+ }
+ }
+
+ // PROVIDER INTENTS (should go into VIM module in the future)
+ rpc add-provider {
+ description "Register a new resource provider into reservation system";
+ input {
+ leaf provider-type {
+ description "Select a specific resource provider type";
+ mandatory true;
+ type enumeration {
+ enum openstack;
+ enum hp;
+ enum rackspace;
+ enum amazon {
+ status planned;
+ }
+ enum joyent {
+ status planned;
+ }
+ enum azure {
+ status planned;
+ }
+ }
+ default openstack;
+ }
+ uses acm:access-credentials {
+ refine strategy {
+ default keystone;
+ }
+ refine endpoint {
+ default "http://localhost:5000/v2.0";
+ }
+ }
+ leaf user-domain-name { type string; }
+ container project {
+ leaf id { type string; }
+ leaf name { type string; }
+ leaf domain-name { type string; }
+ }
+ }
+ output {
+ uses common-intent-output;
+ leaf provider-id {
+ type instance-identifier { ct:instance-type ResourceProvider; }
+ }
+ }
+ }
+
+ // TODO...
+ notification reservation-event;
+ notification capacity-event;
+ notification allocation-event;
+}
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