Metering

meshStack supports metering and billing for the most common types of OpenStack resources. Metering is based on periodically sampling resource state from the platform's API.

The accuracy of sampling-based metering naturally depends on the sampling interval. While insufficient for supporting a per-second billing model, it works very well for billing resources on a per-hour billing model.

Prerequisites

• OpenStack admin user with suitable read-only permissions for all projects
• OpenStack APIs are accessible by meshStack metering collector components

Supported Resources

Resources with the following traits are addressable in the Product Catalog. Platform engineers or Partners can use the traits of these resources to define fine-granular product and pricing rules.

Neutron - Floating IP

let FloatingIpResourceTraits =
    {-
        This type has no traits. However you can still create products charging for the resource's existence.
    -}
      {}

let example
    : FloatingIpResourceTraits
    = {=}

Neutron - Router

let RouterResourceTraits =
    {-
        This type has no traits. However you can still create products charging for the resource's existence.
    -}
      {}

let example
    : RouterResourceTraits
    = {=}

Neutron - Load Balancer

let LoadBalancerResourceTraits =
    {-
      listeners:
        Number of load balancer listeners

      operatingStatus:
        Operating status of the load balancer. One of ONLINE, OFFLINE, DEGRADED, ERROR, NO_MONITOR.

      pools:
        Number of load balancer backend pools

      provider:
        The loadbalancer provider
    -}
      { listeners : Optional Integer
      , operatingStatus : Optional Text
      , pools : Optional Integer
      , provider : Optional Text
      }

let example
    : LoadBalancerResourceTraits
    = { listeners = Some +1
      , operatingStatus = Some "OFFLINE"
      , pools = Some +1
      , provider = Some "octavia"
      }

Cinder - Volume Snapshot

let VolumeSnapshotResourceTraits =
    {-
      availabilityZone:
        Availability zone of the volume snapshot

      replicationStatus:
        Replication status of the volume

      status:
        Status of the volume snapshot, see https://docs.openstack.org/api-ref/block-storage/v3/#volume-snapshots-snapshots

      volumeSize:
        Size of the volume snapshot in GiB
    -}
      { availabilityZone : Optional Text
      , replicationStatus : Optional Text
      , status : Text
      , volumeSize : Integer
      }

let example
    : VolumeSnapshotResourceTraits
    = { availabilityZone = Some "eu-west"
      , replicationStatus = Some ""
      , status = "available"
      , volumeSize = +10
      }

Cinder - Volume

let VolumeResourceTraits =
    {-
      availabilityZone:
        Availability zone of the volume

      replicationStatus:
        Replication status of the volume

      size:
        Size of the volume in GiB

      status:
        Status of the volume, see https://docs.openstack.org/api-ref/block-storage/v3/#volumes-volumes

      type:
        Type of the volume
    -}
      { availabilityZone : Optional Text
      , replicationStatus : Optional Text
      , size : Integer
      , status : Text
      , type : Optional Text
      }

let example
    : VolumeResourceTraits
    = { availabilityZone = Some "eu-west"
      , replicationStatus = Some ""
      , size = +10
      , status = "in-use"
      , type = Some "ssd"
      }

Glance - Image

let ImageResourceTraits =
    {-
      service:
        The Glance backend service storing the image.

      size:
        The size of the image in GiB.

      status:
        Image status, see https://docs.openstack.org/glance/pike/user/statuses.html
    -}
      { service : Optional Text, size : Optional Integer, status : Text }

let example
    : ImageResourceTraits
    = { service = Some "cinder", size = Some +10, status = "active" }

Nova - Server

let VirtualMachineResourceTraits =
    {-
      disk:
        Virtual machine disk size in GiB

      diskEphemeral:
        Virtual machine ephemeral disk size in GiB

      diskRoot:
        Virtual machine root disk size in GiB

      flavor:
        Name of the flavor (not id)

      ramMb:
        RAM size of the virtual machine in MiB

      state:
        Virtual machine state

      vcpu:
        Number of virtual CPUs
    -}
      { disk : Optional Integer
      , diskEphemeral : Optional Integer
      , diskRoot : Optional Integer
      , flavor : Optional Text
      , ramMb : Optional Integer
      , state : Text
      , vcpu : Optional Integer
      }

let example
    : VirtualMachineResourceTraits
    = { disk = Some +20
      , diskEphemeral = Some +20
      , diskRoot = Some +20
      , flavor = Some "v4.large"
      , ramMb = Some +1024
      , state = ""
      , vcpu = Some +4
      }