module interface-role {

  yang-version 1;
  namespace "urn:opendaylight:params:xml:ns:yang:interface:role";
  prefix "if-role";

  revision "2017-06-15" {
    description "Basic specification of interface roles";
  }

  import ietf-interfaces {
    prefix "if";
  }

  import yang-ext {
    prefix "ext";
  }

  identity network-role-base {
    description "Base identity for network interface roles";
  }

  identity virtual-domain-interface {
    base network-role-base;
    description "Tenant network interface. Interface must be enabled and have ip assigned";
  }

  identity public-interface {
    base network-role-base;
    description "Public interface for external access. Interface must be enabled and have ip assigned";
  }

  typedef network-role {
    type identityref {
      base network-role-base;
    }
    description "Base type for network interface roles";
  }

  grouping interface-role-grouping {
    container roles {
      list role {
        key role-name;

        leaf role-name {
          type string;
          description "Unique name for role";
          mandatory true;
        }

        leaf role-type {
          type network-role;
          description "Specifies type of network role";
          mandatory true;
        }

        leaf description {
          type string;
          description "Any additional metadata for this assignment of network role";
        }
      }
    }
  }

  augment /if:interfaces/if:interface {
    ext:augment-identifier "interface-role-augmentation";

    uses interface-role-grouping;
  }
}