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|
.. Licensed under a Creative Commons Attribution 4.0 International License.
.. http://creativecommons.org/licenses/by/4.0
.. Copyright 2017 AT&T Intellectual Property. All rights reserved.
Resource: OS::Nova::Server - Parameters
-----------------------------------------------------------------------
The OS::Nova::Server resource manages the running virtual machine (VM)
instance within an OpenStack cloud. (See
https://docs.openstack.org/developer/heat/template_guide/openstack.html#OS::Nova::Server.)
The following four properties of the ``OS::Nova::Server``
resource must follow an
ONAP specified naming convention.
1. ``image``
2. ``flavor``
3. ``name``
4. ``availability_zone``
Requirement R-01455 defines how the ``{vm-type]`` is defined.
Requirement R-82481 defines how the ``{vm-type}`` is used.
The table below provides a summary. The sections that follow provides
the detailed requirements.
.. csv-table:: **Table 1 OS::Nova::Server Resource Property Parameter Naming Convention**
:header: Resource,Property,Parameter Type,Parameter Name,Parameter Value Provided to Heat
:align: center
:widths: auto
OS::Nova::Server, image, string, {vm-type}_image_name, Environment File
OS::Nova::Server, flavor, string, {vm-type}_flavor_name, Environment File
OS::Nova::Server, name, string, {vm-type}_name_{index}, ONAP
OS::Nova::Server, name, CDL, {vm-type}_names, ONAP
OS::Nova::Server, availability_zone, string, availability_zone_{index}, ONAP
.. _Property image:
Property: image
^^^^^^^^^^^^^^^
.. req::
:id: R-71152
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
The VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property
``image`` parameter **MUST** be declared as type: ``string``.
.. req::
:id: R-58670
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
The VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property
``image`` parameter name **MUST** follow the naming convention
``{vm-type}_image_name``.
.. req::
:id: R-91125
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
The VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property
``image`` parameter **MUST** be enumerated in the Heat Orchestration
Template's Environment File and a value **MUST** be assigned.
.. req::
:id: R-57282
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
Each VNF's Heat Orchestration Template's ``{vm-type}`` **MUST**
have a unique parameter name for the ``OS::Nova::Server`` property
``image`` even if more than one ``{vm-type}`` shares the same image.
*Example Parameter Definition*
.. code-block:: yaml
parameters:
{vm-type}_image_name:
type: string
description: {vm-type} server image
.. _Property flavor:
Property: flavor
^^^^^^^^^^^^^^^^^^
.. req::
:id: R-50436
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
The VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property
``flavor`` parameter **MUST** be declared as type: ``string``.
.. req::
:id: R-45188
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
The VNF's Heat Orchestration Template's Resource 'OS::Nova::Server' property
``flavor`` parameter name **MUST** follow the naming convention
``{vm-type}_flavor_name``.
.. req::
:id: R-69431
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
The VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property
``flavor`` parameter **MUST** be enumerated in the Heat Orchestration
Template's Environment File and a value **MUST** be assigned.
.. req::
:id: R-40499
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
Each VNF's Heat Orchestration Template's ``{vm-type}`` **MUST**
have a unique parameter name for the ``OS::Nova::Server`` property
``flavor`` even if more than one ``{vm-type}`` shares the same flavor.
*Example Parameter Definition*
.. code-block:: yaml
parameters:
{vm-type}_flavor_name:
type: string
description: {vm-type} flavor
Property: Name
^^^^^^^^^^^^^^^^^
.. req::
:id: R-51430
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
The VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property
``name`` parameter **MUST** be declared as either type ``string``
or type ``comma_delimited_list``.
.. req::
:id: R-54171
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
When the VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property ``name`` parameter is defined as a ``string``,
the parameter name **MUST** follow the naming convention
``{vm-type}_name_{index}``, where ``{index}`` is a numeric
value that starts at
zero and increments by one.
.. req::
:id: R-40899
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
When the VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property ``name`` parameter is defined as a ``string``, a parameter
**MUST** be delcared for
each ``OS::Nova::Server`` resource associated with the ``{vm-type}``.
.. req::
:id: R-87817
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
When the VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property ``name`` parameter is defined as a ``comma_delimited_list``,
the parameter name **MUST** follow the naming convention
``{vm-type}_names``.
.. req::
:id: R-85800
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
When the VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property ``name`` parameter is defined as a ``comma_delimited_list``,
a parameter **MUST** be delcared once for all ``OS::Nova::Server`` resources
associated with the ``{vm-type}``.
.. req::
:id: R-22838
:target: VNF
:keyword: MUST NOT
:validation_mode: static
:updated: casablanca
The VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property
``name`` parameter **MUST NOT** be enumerated in the Heat Orchestration
Template's Environment File.
If a VNF's Heat Orchestration Template's contains more than three
OS::Nova::Server resources of a given ``{vm-type}``, the comma_delimited_list
form of the parameter name (i.e., ``{vm-type}_names``) should be used to
minimize the number of unique parameters defined in the template.
*Example: Parameter Definition*
.. code-block:: yaml
parameters:
{vm-type}_names:
type: comma_delimited_list
description: VM Names for {vm-type} VMs
{vm-type}_name_{index}:
type: string
description: VM Name for {vm-type} VM {index}
*Example: comma\_delimited\_list*
In this example, the {vm-type} has been defined as "lb" for load balancer.
.. code-block:: yaml
parameters:
lb_names:
type: comma_delimited_list
description: VM Names for lb VMs
resources:
lb_server_0:
type: OS::Nova::Server
properties:
name: { get_param: [lb_names, 0] }
...
lb_server_1:
type: OS::Nova::Server
properties:
name: { get_param: [lb_names, 1] }
...
*Example: fixed-index*
In this example, the {vm-type} has been defined as "lb" for load balancer.
.. code-block:: yaml
parameters:
lb_name_0:
type: string
description: VM Name for lb VM 0
lb_name_1:
type: string
description: VM Name for lb VM 1
resources:
lb_server_0:
type: OS::Nova::Server
properties:
name: { get_param: lb_name_0 }
...
lb_server_1:
type: OS::Nova::Server
properties:
name: { get_param: lb_name_1 }
...
Contrail Issue with Values for OS::Nova::Server Property Name
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. req::
:id: R-44271
:target: VNF
:keyword: SHOULD NOT
:updated: casablanca
The VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property
``name`` parameter value **SHOULD NOT** contain special characters
since the Contrail GUI has a limitation displaying special characters.
However, if special characters must be used, the only special characters
supported are: --- \" ! $ ' (\ \ ) = ~ ^ | @ ` { } [ ] > , . _
Property: availability_zone
^^^^^^^^^^^^^^^^^^^^^^^^^^^
.. req::
:id: R-98450
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
The VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property
``availability_zone`` parameter name **MUST** follow the naming convention
``availability_zone_{index}`` where the ``{index}``
**MUST** start at zero and
increment by one.
.. req::
:id: R-23311
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
The VNF's Heat Orchestration Template's Resource
``OS::Nova::Server`` property
``availability_zone`` parameter **MUST** be declared as type: ``string``.
The parameter must not be declared as type ``comma_delimited_list``, ONAP does
not support it.
.. req::
:id: R-59568
:target: VNF
:keyword: MUST NOT
:validation_mode: static
:updated: casablanca
The VNF's Heat Orchestration Template's Resource ``OS::Nova::Server``
property
``availability_zone`` parameter **MUST NOT** be enumerated in the Heat
Orchestration
Template's Environment File.
Example Parameter Definition
.. code-block:: yaml
parameters:
availability_zone_{index}:
type: string
description: availability zone {index} name
Requirement :need:`R-90279` states that a VNF Heat Orchestration's template's
parameter MUST be used in a resource with the exception of the parameters
for the OS::Nova::Server resource property availability_zone.
.. req::
:id: R-01359
:target: VNF
:keyword: MAY
:updated: casablanca
A VNF's Heat Orchestration Template that contains an ``OS::Nova:Server``
Resource **MAY** define a parameter for the property
``availability_zone`` that is not utilized in any ``OS::Nova::Server``
resources in the Heat Orchestration Template.
Example
^^^^^^^^^^^
The example below depicts part of a Heat Orchestration Template that
uses the four ``OS::Nova::Server`` properties discussed in this section.
In the Heat Orchestration Template below, four Virtual Machines
(``OS::Nova::Server``) are created: two dns servers with ``{vm-type}`` set to
``dns`` and two oam servers with ``{vm-type}`` set to ``oam``.
Note that the parameter
associated with the property name is a ``comma_delimited_list`` for ``dns`` and
a string for ``oam``.
.. code-block:: yaml
parameters:
dns_image_name:
type: string
description: dns server image
dns_flavor_name:
type: string
description: dns server flavor
dns_names:
type: comma_delimited_list
description: dns server names
oam_image_name:
type: string
description: oam server image
oam_flavor_name:
type: string
description: oam server flavor
oam_name_0:
type: string
description: oam server name 0
oam_name_1:
type: string
description: oam server name 1
availability_zone_0:
type: string
description: availability zone ID or Name
availability_zone_1:
type: string
description: availability zone ID or Name
resources:
dns_server_0:
type: OS::Nova::Server
properties:
name: { get_param: [ dns_names, 0 ] }
image: { get_param: dns_image_name }
flavor: { get_param: dns_flavor_name }
availability_zone: { get_param: availability_zone_0 }
. . .
dns_server_1:
type: OS::Nova::Server
properties:
name: { get_param: [ dns_names, 1 ] }
image: { get_param: dns_image_name }
flavor: { get_param: dns_flavor_name }
availability_zone: { get_param: availability_zone_1 }
. . .
oam_server_0:
type: OS::Nova::Server
properties:
name: { get_param: oam_name_0 }
image: { get_param: oam_image_name }
flavor: { get_param: oam_flavor_name }
availability_zone: { get_param: availability_zone_0 }
. . .
oam_server_1:
type: OS::Nova::Server
properties:
name: { get_param: oam_name_1 }
image: { get_param: oam_image_name }
flavor: { get_param: oam_flavor_name }
availability_zone: { get_param: availability_zone_1 }
. . .
Boot Options
^^^^^^^^^^^^^^^
.. req::
:id: R-99798
:target: VNF
:keyword: MAY
:updated: casablanca
A VNF's Heat Orchestration Template's Virtual Machine
(i.e., ``OS::Nova::Server`` resource) **MAY** boot from an image or
**MAY** boot from a Cinder Volume.
.. req::
:id: R-83706
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
When a VNF's Heat Orchestration Template's Virtual Machine
(i.e., ``OS::Nova::Server`` resource) boots from an image, the
``OS::Nova::Server`` resource property ``image`` **MUST** be used.
The requirements associated with
the 'image' property are detailed in `Property: image`_
.. req::
:id: R-69588
:target: VNF
:keyword: MUST
:validation_mode: static
:updated: casablanca
When a VNF's Heat Orchestration Template's Virtual Machine
(i.e., ``OS::Nova::Server`` Resource) boots from Cinder Volume, the
``OS::Nova::Server`` resource property
``block_device_mapping`` or ``block_device_mapping_v2``
**MUST** be used.
There are currently no heat guidelines
associated with these two properties:
'block_device_mapping' and 'block_device_mapping_v2'.
|
