VNFRQTS - Update Manual Scale Out for Casablanca

Change-Id: Ie76c24990752009689d9d766ac665ae291d08171
Issue-ID: VNFRQTS-261
Signed-off-by: Lovett, Trevor <trevor.lovett@att.com>

5 files changed, 58 insertions, 525 deletions

diff --git a/conf.py b/conf.py
deleted file mode 100644
index b5f690d..0000000
--- a/conf.py
+++ /dev/null
@@ -1,493 +0,0 @@
-# -*- coding: utf-8 -*-
-#
-# ONAP documentation build configuration file, created by
-# sphinx-quickstart on Wed Jul 19 16:25:31 2017.
-#
-# This file is execfile()d with the current directory set to its
-# containing dir.
-#
-# Note that not all possible configuration values are present in this
-# autogenerated file.
-#
-# All configuration values have a default; values that are commented out
-# serve to show the default.
-
-import sys
-import os
-import shlex
-#import sphinx_bootstrap_theme
-
-# If extensions (or modules to document with autodoc) are in another directory,
-# add these directories to sys.path here. If the directory is relative to the
-# documentation root, use os.path.abspath to make it absolute, like shown here.
-#sys.path.insert(0, os.path.abspath('.'))
-
-# -- General configuration ------------------------------------------------
-
-# If your documentation needs a minimal Sphinx version, state it here.
-needs_sphinx = '1.5.3'
-
-# Add any Sphinx extension module names here, as strings. They can be
-# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
-# ones.
-extensions = [
-    'sphinx.ext.autodoc',
-    'sphinx.ext.doctest',
-    'sphinx.ext.graphviz',
-    'sphinx.ext.todo',
-    'sphinx.ext.imgmath',
-    'sphinx.ext.viewcode',
-    'sphinxcontrib.blockdiag',
-    'sphinxcontrib.needs',
-    'sphinxcontrib.nwdiag',
-    'sphinxcontrib.seqdiag',
-    'sphinx.ext.ifconfig',
-    'sphinx.ext.todo',
-    'sphinxcontrib.plantuml',
-    'sphinxcontrib.swaggerdoc'
-]
-
-# Font path for seqdiag
-seqdiag_fontpath = '/usr/share/fonts/truetype/dejavu/DejaVuSansCondensed.ttf'
-nwdiag_fontpath =  '/usr/share/fonts/truetype/dejavu/DejaVuSansCondensed.ttf'
-
-# Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
-
-# The suffix(es) of source filenames.
-# You can specify multiple suffix as a list of string:
-# source_suffix = ['.rst', '.md']
-source_suffix = '.rst'
-
-# The encoding of source files.
-#source_encoding = 'utf-8-sig'
-
-# The master toctree document.
-master_doc = 'index'
-
-# General information about the project.
-project = u''
-copyright = u'2018 ONAP. Licensed under Creative Commons Attribution 4.0 International License'
-
-
-author = u'Open Network Automation Platform'
-
-# The version info for the project you're documenting, acts as replacement for
-# |version| and |release|, also used in various other places throughout the
-# built documents.
-# The short X.Y version.
-version = 'master branch'
-# The full version, including alpha/beta/rc tags.
-release = 'master branch'
-
-# The language for content autogenerated by Sphinx. Refer to documentation
-# for a list of supported languages.
-#
-# This is also used if you do content translation via gettext catalogs.
-# Usually you set "language" from the command line for these cases.
-language = None
-
-# There are two options for replacing |today|: either, you set today to some
-# non-false value, then it is used:
-#today = ''
-# Else, today_fmt is used as the format for a strftime call.
-#today_fmt = '%B %d, %Y'
-
-# List of patterns, relative to source directory, that match files and
-# directories to ignore when looking for source files.
-exclude_patterns = [
-	'_build'
-	]
-
-# The reST default role (used for this markup: `text`) to use for all
-# documents.
-#default_role = None
-
-# If true, '()' will be appended to :func: etc. cross-reference text.
-#add_function_parentheses = True
-
-# If true, the current module name will be prepended to all description
-# unit titles (such as .. function::).
-#add_module_names = True
-
-# If true, sectionauthor and moduleauthor directives will be shown in the
-# output. They are ignored by default.
-#show_authors = False
-
-# The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
-
-# A list of ignored prefixes for module index sorting.
-#modindex_common_prefix = []
-
-# If true, keep warnings as "system message" paragraphs in the built documents.
-#keep_warnings = False
-
-# If true, `todo` and `todoList` produce output, else they produce nothing.
-todo_include_todos = True
-
-
-# -- Options for HTML output ----------------------------------------------
-
-# The theme to use for HTML and HTML Help pages.  See the documentation for
-# a list of builtin themes.
-#html_theme = 'classic'
-html_theme = 'sphinx_rtd_theme'
-
-# Theme options are theme-specific and customize the look and feel of a theme
-# further.  For a list of options available for each theme, see the
-# documentation.
-#html_theme_options = {}
-
-# Add any paths that contain custom themes here, relative to this directory.
-#html_theme_path = sphinx_bootstrap_theme.get_html_theme_path()
-
-# The name for this set of Sphinx documents.  If None, it defaults to
-# "<project> v<release> documentation".
-#html_title = None
-
-# A shorter title for the navigation bar.  Default is the same as html_title.
-#html_short_title = None
-
-# The name of an image file (relative to this directory) to place at the top
-# of the sidebar.
-html_logo = '_static/logo_onap_2017.png'
-
-# The name of an image file (within the static path) to use as favicon of the
-# docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
-# pixels large.
-html_favicon = '_static/favicon.ico'
-
-# Add any paths that contain custom static files (such as style sheets) here,
-# relative to this directory. They are copied after the builtin static files,
-# so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
-
-# Add any extra paths that contain custom files (such as robots.txt or
-# .htaccess) here, relative to this directory. These files are copied
-# directly to the root of the documentation.
-#html_extra_path = []
-
-# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
-# using the given strftime format.
-html_last_updated_fmt = '%d-%b-%y %H:%M'
-
-# If true, SmartyPants will be used to convert quotes and dashes to
-# typographically correct entities.
-#html_use_smartypants = True
-
-# Custom sidebar templates, maps document names to template names.
-#html_sidebars = {}
-
-# Additional templates that should be rendered to pages, maps page names to
-# template names.
-#html_additional_pages = {}
-
-# If false, no module index is generated.
-#html_domain_indices = True
-
-# If false, no index is generated.
-#html_use_index = True
-
-# If true, the index is split into individual pages for each letter.
-#html_split_index = False
-
-# If true, links to the reST sources are added to the pages.
-#html_show_sourcelink = True
-
-# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
-html_show_sphinx = False
-
-# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
-#html_show_copyright = True
-
-# If true, an OpenSearch description file will be output, and all pages will
-# contain a <link> tag referring to it.  The value of this option must be the
-# base URL from which the finished HTML is served.
-#html_use_opensearch = ''
-
-# This is the file name suffix for HTML files (e.g. ".xhtml").
-#html_file_suffix = None
-
-# Language to be used for generating the HTML full-text search index.
-# Sphinx supports the following languages:
-#   'da', 'de', 'en', 'es', 'fi', 'fr', 'hu', 'it', 'ja'
-#   'nl', 'no', 'pt', 'ro', 'ru', 'sv', 'tr'
-#html_search_language = 'en'
-
-# A dictionary with options for the search language support, empty by default.
-# Now only 'ja' uses this config value
-#html_search_options = {'type': 'default'}
-
-# The name of a javascript file (relative to the configuration directory) that
-# implements a search results scorer. If empty, the default will be used.
-#html_search_scorer = 'scorer.js'
-
-# Output file base name for HTML help builder.
-htmlhelp_basename = 'ONAPdoc'
-
-# -- Options for LaTeX output ---------------------------------------------
-
-latex_elements = {
-# The paper size ('letterpaper' or 'a4paper').
-#'papersize': 'letterpaper',
-
-# The font size ('10pt', '11pt' or '12pt').
-#'pointsize': '10pt',
-
-# Additional stuff for the LaTeX preamble.
-#'preamble': '',
-
-# Latex figure (float) alignment
-#'figure_align': 'htbp',
-}
-
-# Grouping the document tree into LaTeX files. List of tuples
-# (source start file, target name, title,
-#  author, documentclass [howto, manual, or own class]).
-latex_documents = [
-  (master_doc, 'ONAP.tex', u'ONAP Documentation',
-   u'ONAP Contributors', 'manual'),
-]
-
-# The name of an image file (relative to this directory) to place at the top of
-# the title page.
-#latex_logo = None
-
-# For "manual" documents, if this is true, then toplevel headings are parts,
-# not chapters.
-#latex_use_parts = False
-
-# If true, show page references after internal links.
-#latex_show_pagerefs = False
-
-# If true, show URL addresses after external links.
-#latex_show_urls = False
-
-# Documents to append as an appendix to all manuals.
-#latex_appendices = []
-
-# If false, no module index is generated.
-#latex_domain_indices = True
-
-
-# -- Options for manual page output ---------------------------------------
-
-# One entry per manual page. List of tuples
-# (source start file, name, description, authors, manual section).
-man_pages = [
-    (master_doc, 'onap', u'ONAP Documentation',
-     [author], 1)
-]
-
-# If true, show URL addresses after external links.
-#man_show_urls = False
-
-
-# -- Options for Texinfo output -------------------------------------------
-
-# Grouping the document tree into Texinfo files. List of tuples
-# (source start file, target name, title, author,
-#  dir menu entry, description, category)
-texinfo_documents = [
-  (master_doc, 'ONAP', u'ONAP Documentation',
-   author, 'ONAP', 'Open Network Automation Platform',
-   'Platform'),
-]
-
-# Documents to append as an appendix to all manuals.
-#texinfo_appendices = []
-
-# If false, no module index is generated.
-#texinfo_domain_indices = True
-
-# How to display URL addresses: 'footnote', 'no', or 'inline'.
-#texinfo_show_urls = 'footnote'
-
-# If true, do not generate a @detailmenu in the "Top" node's menu.
-#texinfo_no_detailmenu = False
-
-
-# -- Options for Epub output ----------------------------------------------
-
-# Bibliographic Dublin Core info.
-epub_title = project
-epub_author = author
-epub_publisher = author
-epub_copyright = copyright
-
-# The basename for the epub file. It defaults to the project name.
-#epub_basename = project
-
-# The HTML theme for the epub output. Since the default themes are not optimized
-# for small screen space, using the same theme for HTML and epub output is
-# usually not wise. This defaults to 'epub', a theme designed to save visual
-# space.
-#epub_theme = 'epub'
-
-# The language of the text. It defaults to the language option
-# or 'en' if the language is not set.
-#epub_language = ''
-
-# The scheme of the identifier. Typical schemes are ISBN or URL.
-#epub_scheme = ''
-
-# The unique identifier of the text. This can be a ISBN number
-# or the project homepage.
-#epub_identifier = ''
-
-# A unique identification for the text.
-#epub_uid = ''
-
-# A tuple containing the cover image and cover page html template filenames.
-#epub_cover = ()
-
-# A sequence of (type, uri, title) tuples for the guide element of content.opf.
-#epub_guide = ()
-
-# HTML files that should be inserted before the pages created by sphinx.
-# The format is a list of tuples containing the path and title.
-#epub_pre_files = []
-
-# HTML files shat should be inserted after the pages created by sphinx.
-# The format is a list of tuples containing the path and title.
-#epub_post_files = []
-
-# A list of files that should not be packed into the epub file.
-epub_exclude_files = ['search.html']
-
-# The depth of the table of contents in toc.ncx.
-#epub_tocdepth = 3
-
-# Allow duplicate toc entries.
-#epub_tocdup = True
-
-# Choose between 'default' and 'includehidden'.
-#epub_tocscope = 'default'
-
-# Fix unsupported image types using the Pillow.
-#epub_fix_images = False
-
-# Scale large images.
-#epub_max_image_width = 0
-
-# How to display URL addresses: 'footnote', 'no', or 'inline'.
-#epub_show_urls = 'inline'
-
-# If false, no index is generated.
-#epub_use_index = True
-
-# Patterns to ignore in linkcheck builder
-linkcheck_ignore = [
-	r'http://$',
-	r'http:/$',
-	r'http://10\.',
-	r'http://127\.',
-	r'http://172\.[123]',
-	r'http://app_host:port/',
-	r'http://app-host:port/',
-	r'http://ESR_SERVICE_IP',
-	r'http://ESR_SERVER_IP',
-	r'http://hostIP:\d+/',
-	r'http://load-balanced-address:\d+/',
-	r'http://localhost',
-	r'http://\$msb_address/',
-	r'http://\$MSB_SERVER_IP:\d+/',
-	r'http://msb_docker_host_ip:\d+/',
-	r'http://MSB_IP:MSB_PORT/',
-	r'http://msb.onap.org',
-	r'http://MSB_SERVER_IP:\d+/',
-	r'http://org.openecomp.',
-	r'http://{PDP_URL}:\d+/',
-	r'http://servername.domain.com',
-	r'http://.*simpledemo.openecomp.org',
-	r'http://.*simpledemo.onap.org',
-	r'http://.*test.att.com:\d+/',
-	r'http://we-are-data-router.us',
-	r'http://we-are-message-router.us:\d+/'
-	r'http://www.\[host\]:\[port\]/',
-	r'http://yourhostname',
-	r'https://$',
-	r'https:/$',
-	r'https://10\.',
-	r'https://127\.',
-	r'https://172\.[123]',
-	r'https://aaf.onap.org',
-	r'https://\$CBAM_IP',
-	r'https://ESR_SERVICE_IP',
-	r'https://ESR_SERVER_IP',
-	r'https://msb.onap.org',
-	r'https://my-subscriber-app.dcae',
-	r'https://\$CBAM_IP:\d+/',
-	r'https://load-balanced-address:\d+/',
-	r'https://prov.datarouternew.com:8443',
-	r'https://.*simpledemo.openecomp.org',
-	r'https://.*simpledemo.onap.org',
-	r'https://.*test.att.com:\d+/',
-	r'https://we-are-data-router.us',
-	r'https://we-are-message-router.us:\d+/'
-	]
-
-from docutils.parsers.rst import directives
-
-needs_extra_options = {
-    "target": directives.unchanged,
-    "keyword": directives.unchanged,
-    "introduced": directives.unchanged,
-    "updated": directives.unchanged,
-    "impacts": directives.unchanged,
-    "validation_mode": directives.unchanged,
-    "validated_by": directives.unchanged,
-    "test": directives.unchanged,
-    "test_case": directives.unchanged,
-    "test_file": directives.unchanged,
-    "notes": directives.unchanged,
-}
-
-needs_id_regex = "^[A-Z0-9]+-[A-Z0-9]+"
-needs_id_required = True
-needs_title_optional = True
-
-needs_template_collapse = """
-.. _{{id}}:
-
-{% if hide == false -%}
-.. role:: needs_tag
-.. role:: needs_status
-.. role:: needs_type
-.. role:: needs_id
-.. role:: needs_title
-
-.. rst-class:: need
-.. rst-class:: need_{{type_name}}
-
-.. container:: need
-
-    `{{id}}` - {{content|indent(4)}}
-
-    .. container:: toggle
-
-        .. container:: header
-
-            Details
-
-{% if status and  status|upper != "NONE" and not hide_status %}        | status: :needs_status:`{{status}}`{% endif %}
-{% if tags and not hide_tags %}        | tags: :needs_tag:`{{tags|join("` :needs_tag:`")}}`{% endif %}
-{% if keyword %}        | keyword: `{{keyword}}` {% endif %}
-{% if target %}        | target: `{{target}}` {% endif %}
-{% if introduced %}        | introduced: `{{introduced}}` {% endif %}
-{% if updated %}        | updated: `{{updated}}` {% endif %}
-{% if impacts %}        | impacts: `{{impacts}}` {% endif %}
-{% if validation_mode %}        | validation mode: `{{validation_mode}}` {% endif %}
-{% if validated_by %}        | validated by: `{{validated_by}}` {% endif %}
-{% if test %}        | test: `{{test}}` {% endif %}
-{% if test_case %}        | test case: {{test_case}} {% endif %}
-{% if test_file %}        | test file: `{{test_file}}` {% endif %}
-{% if notes %}        | notes: `{{notes}}` {% endif %}
-        | children: :need_incoming:`{{id}}`
-        | parents: :need_outgoing:`{{id}}`
-{% endif -%}
-"""
-
-def setup(app):
-    app.add_stylesheet("css/ribbon.css")
diff --git a/docs/Scale_Out_Workflow.png b/docs/Scale_Out_Workflow.png
deleted file mode 100755
index b1b985d..0000000
--- a/docs/Scale_Out_Workflow.png
+++ /dev/null
diff --git a/docs/manual_scale_out_design_time.png b/docs/manual_scale_out_design_time.png
new file mode 100644
index 0000000..0626365
--- /dev/null
+++ b/docs/manual_scale_out_design_time.png
diff --git a/docs/manual_scale_out_run_time.png b/docs/manual_scale_out_run_time.png
new file mode 100644
index 0000000..75b9e65
--- /dev/null
+++ b/docs/manual_scale_out_run_time.png
diff --git a/docs/manual_use_case.rst b/docs/manual_use_case.rst
index ed22808..9f04418 100644
--- a/docs/manual_use_case.rst
+++ b/docs/manual_use_case.rst
@@ -16,54 +16,80 @@
   :local:
 
 Manual Scale Out Use Case
-==================================
+=========================
 
-Since its Beijing Release, ONAP will support the ability to manually scale
-out VNF Components. Below is the Sequence Diagram for how Manual Scale Out
-will work in ONAP.
+In the Casablanca release, ONAP will support the ability to both manually and
+automatically scale out a VNF component.  Below is the sequence diagram
+for how scaling will work.
 
-|image0|
+|scale_out_design_time|
+
+|scale_out_run_time|
 
 Description of Workflow
----------------------------------------------
+-----------------------
+
+At a high level the way Scale Out will work is:
+
+1. ``VF_Modules`` (VNFC’s) may be scaled out with either one of two methods:
+
+   a. Using VID, the operator will choose to scale out a VNFC by picking
+      a ``VF_Module`` to scale
+   b. An operator may define an operating policy (and associated guard
+      policies) to trigger a scaling operation automatically.
 
-At a high level the way Manual Scale Out will work is:
+      * As an example, the operating policy may be when the output of an
+        application load balancer crosses a bandwidth threshold, then increase
+        the number of instances of the application.
+      * Examples of a guard policies:
 
- 1. Using VID, the operator will choose to scale out a VNFC by picking a
-    VF_Module to scale and choosing which controller is responsible for
-    that VNF.
- 2. VID sends the Scale Out Request to SO.
- 3. When SO receives the Scaling request it will first send a request to
-    the appropriate controller (APPC or SDNC) to execute a Healthcheck on the
-    VNF.
- 4. Once the Healthcheck has been run, SO executes the Heat Template
-    associated with the VF Module requested by the VID Operator.
- 5. After the new component(s) have been instantiated SO calls the
-    responsible controller (via DMaaP) to configure the new instances.
- 6. Finally a Healthcheck is run to ensure that the entire VNF is Operating
-    as it should.
+         1. If a scaling operation has run within the past X minutes, then do
+            not scale.
+         2. If the number of instance is <= ``MIN_INSTANCES``
+            or >= ``MAX_INSTANCES``, then do not scale.
+
+2. VID or Policy sends the Scale Out Request to SO.
+3. When SO receives the Scaling request it will first send a request to the
+   appropriate controller (APPC or SDNC) to execute a health check on the VNF.
+4. Once the health check has been run, SO executes the Heat Template associated
+   with the VF Module requested by the VID Operator or the operational policy.
+5. After the new component(s) have been instantiated SO calls the responsible
+   controller (via DMaaP) to configure the new instances using Ansible, Chef,
+   or Netconf.
+6. Finally a health check is run to ensure that the entire VNF is Operating
+   as it should.
 
 
 VNF Impacts
-------------------------
+-----------
 
 For VNFs to make use of the Manual Scaling Capabilities of ONAP, they must
 support the following functionality:
 
-  1. VNFs must support a Healthcheck as described in: `The Management Section of the ONAP VNF Guidelines <http://onap.readthedocs.io/en/latest/submodules/vnfrqts/requirements.git/docs/Chapter7.html#vnf-rest-apis>`_.
+   1. VNFs must support a Healthcheck as described in:
+      :doc:`The Management Section of the ONAP VNF Guidelines<../../../requirements.git/docs/Chapter7/Configuration-Management.html>`.
+
+      a. R-41430  is the requirement dictating the need for VNF Healthchecks.
+      b. The health check may be supported using REST, Ansible, or Chef
+
+         * REST health check requirements can be found in the
+           :doc:`REST APIs section<../../../requirements.git/docs/Chapter7/Configuration-Management.html#vnf-rest-apis>`
+         * The Ansible health check playbook can be found in the
+           :doc:`Ansible Playbook Requirements section<../../../requirements.git/docs/Chapter7/Configuration-Management.html#vnf-rest-apis#ansible-playbook-requirements>`
 
-    a. R-31809 is the requirement dictating the need for VNF Healthchecks.
-    b. The Ansible Healthcheck Playbook description may be found in `The Ansible Standards and Capabilities Section <http://onap.readthedocs.io/en/latest/submodules/vnfrqts/requirements.git/docs/Chapter7.html#ansible-standards-and-capabilities>`_.
+   2. R-43413 states that a "VNF MUST utilize a modular Heat Orchestration
+      Template design to support scaling". The description of this design may
+      be found in the
+      :doc:`ONAP VNF Modularity Overview section<../../../requirements.git/docs/Chapter5/Heat/ONAP Heat Orchestration Templates Overview.html#onap-vnf-modularity-overview>`
+      of the Heat Requirements.
 
-  2. VNF Heat Templates must be built according the `VNF Modularity Rules <http://onap.readthedocs.io/en/latest/submodules/vnfrqts/requirements.git/docs/Chapter4.html#d-vnf-modularity>`_.
+      a. The ``VF_Module`` to be scaled must be built according to the VNF
+         Modularity Rules for Incremental Modules
 
-    a. The VF_Module to be scaled must be built according the VNF
-       Modularity Rules for Incremental Modules.
+   3. Configuration of the VNF must be done via NETCONF, Chef, or Ansible as
+      described in the :doc:`Configuration Management<./../../requirements.git/docs/Chapter7/Configuration-Management.html#configuration-management>`
 
-  3. Configuration of the VNF must be done via NETCONF, Chef, or Ansible
-     as described in `Configuration Management <http://onap.readthedocs.io/en/latest/submodules/vnfrqts/requirements.git/docs/Chapter7.html#c-configuration-management>`_.
+.. |scale_out_design_time| image:: manual_scale_out_design_time.png
 
+.. |scale_out_run_time| image:: manual_scale_out_run_time.png
 
-.. |image0| image:: Scale_Out_Workflow.png
-   :width: 8in
-   :height: 9in