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author | Lovett, Trevor <trevor.lovett@att.com> | 2018-10-17 14:59:49 -0500 |
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committer | Lovett, Trevor <trevor.lovett@att.com> | 2018-10-19 14:04:29 -0500 |
commit | 3558e4ae816958ead70d2032426ec09ae66b5fd0 (patch) | |
tree | e264be2ef5da5314b6fb0094199cb24d2b9ce42c /docs/Chapter5/Heat/ONAP Heat Orchestration Templates: Overview.rst | |
parent | 460a3bce7753bec655426f09eb4765a245082425 (diff) |
VNFRQTS - Dynamic Release Notes
Also fixed couple formatting issues that were causing errors in the
Sphinx job.
Change-Id: Iae938e41d1d3746aa8faa1edbc652d68d9c7aa6e
Issue-ID: VNFRQTS-447
Signed-off-by: Lovett, Trevor <trevor.lovett@att.com>
Diffstat (limited to 'docs/Chapter5/Heat/ONAP Heat Orchestration Templates: Overview.rst')
-rw-r--r-- | docs/Chapter5/Heat/ONAP Heat Orchestration Templates: Overview.rst | 563 |
1 files changed, 0 insertions, 563 deletions
diff --git a/docs/Chapter5/Heat/ONAP Heat Orchestration Templates: Overview.rst b/docs/Chapter5/Heat/ONAP Heat Orchestration Templates: Overview.rst deleted file mode 100644 index cfd6e36..0000000 --- a/docs/Chapter5/Heat/ONAP Heat Orchestration Templates: Overview.rst +++ /dev/null @@ -1,563 +0,0 @@ -.. 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. - -.. _ONAP Heat Orchestration Templates Overview: - -ONAP Heat Orchestration Templates Overview ------------------------------------------------ - -ONAP supports a modular Heat Orchestration Template design pattern, -referred to as *VNF Modularity.* - -ONAP VNF Modularity Overview -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - - -.. req:: - :id: R-69663 - :target: VNF - :keyword: MAY - - A VNF **MAY** be composed from one or more Heat Orchestration - Templates, each of which represents a subset of the overall VNF. - -The Heat Orchestration Templates can be thought of a components or modules of -the VNF and are referred to as *VNF Modules*. During orchestration, -these modules are -deployed incrementally to create the complete VNF. - - -.. req:: - :id: R-33132 - :target: VNF - :keyword: MAY - - A VNF's Heat Orchestration Template **MAY** be - 1.) Base Module Heat Orchestration Template (also referred to as a - Base Module), - 2.) Incremental Module Heat Orchestration Template (referred to as - an Incremental Module), or - 3.) a Cinder Volume Module Heat Orchestration Template (referred to as - Cinder Volume Module). - -.. req:: - :id: R-37028 - :target: VNF - :keyword: MUST - - A VNF **MUST** be composed of one Base Module - -.. req:: - :id: R-13196 - :target: VNF - :keyword: MAY - - A VNF **MAY** be composed of zero to many Incremental Modules. - -.. req:: - :id: R-20974 - :target: VNF - :keyword: MUST - - At orchestration time, the VNF's Base Module **MUST** - be deployed first, prior to any incremental modules. - -.. req:: - :id: R-28980 - :target: VNF - :keyword: MAY - - A VNF's incremental module **MAY** be used for initial VNF deployment only. - -.. req:: - :id: R-86926 - :target: VNF - :keyword: MAY - - A VNF's incremental module **MAY** be used for scale out only. - -A VNF's Incremental Module that is used for scale out is deployed sometime -after initial VNF deployment to add capacity. - - -.. req:: - :id: R-91497 - :target: VNF - :keyword: MAY - - A VNF's incremental module **MAY** be used for both deployment and - scale out. - -.. req:: - :id: R-68122 - :target: VNF - :keyword: MAY - - A VNF's incremental module **MAY** be deployed more than once, - either during initial VNF deployment and/or scale out. - -.. req:: - :id: R-46119 - :target: VNF - :keyword: MAY - - A VNF's Heat Orchestration Template's Resource OS::Heat::CinderVolume - **MAY** be defined in a Base Module. - -.. req:: - :id: R-90748 - :target: VNF - :keyword: MAY - - A VNF's Heat Orchestration Template's Resource OS::Heat::CinderVolume - **MAY** be defined in an Incremental Module. - -.. req:: - :id: R-03251 - :target: VNF - :keyword: MAY - - A VNF's Heat Orchestration Template's Resource OS::Heat::CinderVolume - **MAY** be defined in a Cinder Volume Module. - -ONAP also supports the concept of an optional, independently deployed Cinder -volume via a separate Heat Orchestration Templates, referred to as a Cinder -Volume Module. This allows the volume to persist after a Virtual Machine -(VM) (i.e., OS::Nova::Server) is deleted, allowing the volume to be reused -on another instance (e.g., during a failover activity). - -.. req:: - :id: R-11200 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF's Cinder Volume Module, when it exists, **MUST** be 1:1 - with a Base module or Incremental module. - -It is strongly recommended that Cinder Volumes be created in a Cinder Volume -Module. - -.. req:: - :id: R-38474 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF's Base Module **MUST** have a corresponding Environment File. - -.. req:: - :id: R-81725 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF's Incremental Module **MUST** have a corresponding Environment File - -.. req:: - :id: R-53433 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF's Cinder Volume Module **MUST** have a corresponding environment file - -These concepts will be described in more detail throughout the document. -This overview is provided to set the stage and help clarify the concepts -that will be introduced. - -Nested Heat Orchestration Templates Overview -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -ONAP supports nested Heat Orchestration Templates per OpenStack -specifications. - - -.. req:: - :id: R-36582 - :target: VNF - :keyword: MAY - - A VNF's Base Module **MAY** utilize nested heat. - -.. req:: - :id: R-56721 - :target: VNF - :keyword: MAY - - A VNF's Incremental Module **MAY** utilize nested heat. - -.. req:: - :id: R-30395 - :target: VNF - :keyword: MAY - - A VNF's Cinder Volume Module **MAY** utilize nested heat. - -Nested templates may be suitable for larger VNFs that contain many -repeated instances of the same VM type(s). A common usage pattern is to -create a nested template for each VM type along with its supporting -resources. The Heat Orchestration Template may then reference these -nested templates either statically (by repeated definition) or -dynamically (via OS::Heat::ResourceGroup). - -See :ref:`Nested Heat Templates` for additional details. - -ONAP Heat Orchestration Template Filenames -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -In order to enable ONAP to understand the relationship between Heat -files, the following Heat file naming convention must be utilized. - -In the examples below, <text> represents any alphanumeric string that -must not contain any special characters and must not contain the word -"base". - - -.. req:: - :id: R-87485 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF's Heat Orchestration Template's file extension **MUST** - be in the lower case format ``.yaml`` or ``.yml``. - -.. req:: - :id: R-56438 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF's Heat Orchestration Template's Nested YAML file extension **MUST** - be in the lower case format ``.yaml`` or ``.yml``. - -.. req:: - :id: R-74304 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF's Heat Orchestration Template's Environment file extension **MUST** - be in the lower case format ``.env``. - -.. req:: - :id: R-99646 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF's YAML files (i.e, Heat Orchestration Template files and - Nested files) **MUST** have a unique name in the scope of the VNF. - -Base Modules -~~~~~~~~~~~~ - - -.. req:: - :id: R-81339 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF Heat Orchestration Template's Base Module file name **MUST** include - case insensitive 'base' in the filename and - **MUST** match one of the following four - formats: - - 1.) ``base_<text>.y[a]ml`` - - 2.) ``<text>_base.y[a]ml`` - - 3.) ``base.y[a]ml`` - - 4.) ``<text>_base_<text>``.y[a]ml - - where ``<text>`` **MUST** contain only alphanumeric characters and - underscores '_' and **MUST NOT** contain the case insensitive word ``base``. - -.. req:: - :id: R-91342 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF Heat Orchestration Template's Base Module's Environment File - **MUST** be named identical to the VNF Heat Orchestration Template's - Base Module with ``.y[a]ml`` replaced with ``.env``. - -Incremental Modules -~~~~~~~~~~~~~~~~~~~ - - -.. req:: - :id: R-87247 - :target: VNF - :keyword: MUST - :validation_mode: static - - VNF Heat Orchestration Template's Incremental Module file name - **MUST** contain only alphanumeric characters and underscores - '_' and **MUST NOT** contain the case insensitive word ``base``. - -.. req:: - :id: R-94509 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF Heat Orchestration Template's Incremental Module's Environment File - **MUST** be named identical to the VNF Heat Orchestration Template's - Incremental Module with ``.y[a]ml`` replaced with ``.env``. - -To clearly identify the incremental module, it is recommended to use the -following naming options for modules: - - - ``module_<text>.y[a]ml`` - - - ``<text>_module.y[a]ml`` - - - ``module.y[a]ml`` - - - ``<text>_module_<text>.y[a]ml`` - -Cinder Volume Modules -~~~~~~~~~~~~~~~~~~~~~ - - -.. req:: - :id: R-82732 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF Heat Orchestration Template's Cinder Volume Module **MUST** - be named identical to the base or incremental module it is supporting with - ``_volume`` appended. - -.. req:: - :id: R-31141 - :target: VNF - :keyword: MUST - :validation_mode: static - - VNF Heat Orchestration Template's Cinder Volume Module's Environment File - **MUST** be named identical to the VNF Heat Orchestration Template's - Cinder Volume Module with ``.y[a]ml`` replaced with ``.env``. - -Nested Heat file -~~~~~~~~~~~~~~~~ - - -.. req:: - :id: R-76057 - :target: VNF - :keyword: MUST - :validation_mode: static - - VNF Heat Orchestration Template's Nested YAML file name **MUST** contain - only alphanumeric characters and underscores '_' and - **MUST NOT** contain the case insensitive word ``base``. - -.. req:: - :id: R-70276 - :target: VNF - :keyword: MUST NOT - :validation_mode: static - - A VNF HEAT's Orchestration Nested Template's YAML file name **MUST NOT** - be in the format ``{vm-type}.y[a]ml`` where ``{vm-type}`` is defined - in the Heat Orchestration Template. - -Examples include - - - ``<text>.y[a]ml`` - - - ``nest_<text>.y[a]ml`` - - - ``<text>_nest.y[a]ml`` - - - ``nest.y[a]ml`` - - - ``<text>_nest_<text>.y[a]ml`` - -VNF Heat Orchestration Template's Nested YAML file does not have a -corresponding environment files, per OpenStack specifications. - -.. _Output Parameters: - -Output Parameters -^^^^^^^^^^^^^^^^^^^^^^ - -The output parameters are parameters defined in the output section of a -Heat Orchestration Template. The ONAP output parameters are subdivided -into three categories: - -1. ONAP Base Module Output Parameters - -2. ONAP Volume Module Output Parameters - -3. ONAP Predefined Output Parameters. - -ONAP Base Module Output Parameters -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -ONAP Base Module Output Parameters are declared in the ``outputs:`` section -of the VNF's Heat Orchestration Template's Base Module. A Base Module Output -Parameter is available as an input parameter (i.e., declared in -the ``parameters:`` section) to all Incremental Modules in the VNF. - -A Base Module Output Parameter may be used as an input parameter in any -incremental module in the VNF. Note that the parameter is not available to -other VNFs. - - -.. req:: - :id: R-52753 - :target: VNF - :keyword: MUST - :validation_mode: static - - VNF's Heat Orchestration Template's Base Module's output parameter's - name and type **MUST** match the VNF's Heat Orchestration Template's - incremental Module's name and type unless the output parameter is of - type ``comma_delimited_list``, then the corresponding input parameter - **MUST** be declared as type ``json``. - -If the Output parameter has a comma_delimited_list value (e.g., a collection -of UUIDs from a Resource Group), then the corresponding input parameter must -be declared as type ``json`` and not a ``comma_delimited_list``, -which is actually a string value with embedded commas. - - -.. req:: - :id: R-22608 - :target: VNF - :keyword: MUST NOT - :validation_mode: static - - When a VNF's Heat Orchestration Template's Base Module's output - parameter is declared as an input parameter in an Incremental Module, - the parameter attribute ``constraints:`` **MUST NOT** be declared. - -Additional details on ONAP Base Module Output Parameters are provided in -:ref:`ONAP Output Parameter Names` and ONAP VNF Modularity. - -ONAP Volume Module Output Parameters -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - - -.. req:: - :id: R-89913 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF's Heat Orchestration Template's Cinder Volume Module Output - Parameter(s) - **MUST** include the - UUID(s) of the Cinder Volumes created in template, - while others **MAY** be included. - -A VNF's Heat Orchestration Template's Cinder Volume Module Output Parameter(s) -are only available for the module (base or incremental) that the volume -template is associated with. - - -.. req:: - :id: R-07443 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF's Heat Orchestration Templates' Cinder Volume Module Output - Parameter's name and type **MUST** match the input parameter name and type - in the corresponding Base Module or Incremental Module unless the Output - Parameter is of the type ``comma_delimited_list``, then the corresponding - input parameter **MUST** be declared as type ``json``. - -If the Output parameter has a comma_delimited_list value (e.g., a collection -of UUIDs from a Resource Group), then the corresponding input parameter must -be declared as type json and not a comma_delimited_list, which is actually -a string value with embedded commas. - - -.. req:: - :id: R-20547 - :target: VNF - :keyword: MUST NOT - :validation_mode: static - - When an ONAP Volume Module Output Parameter is declared as an input - parameter in a base or an incremental module Heat Orchestration - Template, parameter constraints **MUST NOT** be declared. - -Additional details on ONAP Base Module Output Parameters are provided in -:ref:`ONAP Output Parameter Names` and :ref:`ONAP Heat Cinder Volumes`. - -ONAP Predefined Output Parameters -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -ONAP will look for a small set of pre-defined Heat output parameters to -capture resource attributes for inventory in ONAP. These output parameters -are optional and currently only two parameters are supported. These output -parameters are optional and are specified in -:ref:`OAM Management IP Addresses`. - -Support of heat stack update -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -ONAP does not support the use of heat stack-update command for scaling -(growth/de-growth). - - -.. req:: - :id: R-39349 - :target: VNF - :keyword: MUST NOT - :validation_mode: static - - A VNF Heat Orchestration Template **MUST NOT** be designed to utilize the - OpenStack ``heat stack-update`` command for scaling (growth/de-growth). - -.. req:: - :id: R-43413 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF **MUST** utilize a modular Heat Orchestration Template design to - support scaling (growth/de-growth). - -It is important to note that ONAP only supports heat stack-update for -image upgrades. - -Scope of a Heat Orchestration Template -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - - -.. req:: - :id: R-59482 - :target: VNF - :keyword: MUST NOT - :validation_mode: static - - A VNF's Heat Orchestration Template **MUST NOT** be VNF instance - specific or cloud site specific. - -ONAP provides the instance specific parameter values to the Heat -Orchestration Template at orchestration time. - - -.. req:: - :id: R-01896 - :target: VNF - :keyword: MUST - :validation_mode: static - - A VNF's Heat Orchestration Template's parameter values that are constant - across all deployments **MUST** be declared in a Heat Orchestration - Template Environment File. - - |