Add Zaqar installation guide
This patch adds Zaqar-specific contents of the OpenStack Installation Guide in the Zaqar repository per [1]. It only covers installation on Red Hat-based systems. Also this patch adds tox.ini environment for install-guide and adds openstackdocs-theme to test-requirements.txt. The Zaqar Installation Guide structure is based on Install Guide Cookiecutter: https://review.openstack.org/#/c/314229/. [1] http://specs.openstack.org/openstack/docs-specs/specs/newton/project-specific-installguides.html Change-Id: I72300c146b22511da4432775fc84e8c821a3fd12 Implements: blueprint install-guide-in-tree Partially-Implements: blueprint projectspecificinstallguides
This commit is contained in:
Eva Balycheva
parent
5d1964d96b
commit
5134d3018b
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@ -126,8 +126,8 @@ In order to keep these layers decoupled, we have established that
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transport drivers must guarantee that the incoming data is well-formed and
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storage drivers must enforce their data model stays consistent.
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Setting up a development environment
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====================================
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Setting up Zaqar in development environment
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===========================================
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.. toctree::
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:maxdepth: 1
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@ -144,7 +144,6 @@ Welcome new contributors
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first_patch
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first_review
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Running and writing tests
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=========================
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@ -0,0 +1,301 @@
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This file is execfile()d with the current directory set to its
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# containing dir.
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#
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# Note that not all possible configuration values are present in this
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# autogenerated file.
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#
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# All configuration values have a default; values that are commented out
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# serve to show the default.
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import os
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# import sys
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import openstackdocstheme
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# If extensions (or modules to document with autodoc) are in another directory,
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# add these directories to sys.path here. If the directory is relative to the
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# documentation root, use os.path.abspath to make it absolute, like shown here.
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# sys.path.insert(0, os.path.abspath('.'))
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# -- General configuration ------------------------------------------------
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# If your documentation needs a minimal Sphinx version, state it here.
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# needs_sphinx = '1.0'
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# Add any Sphinx extension module names here, as strings. They can be
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# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
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# ones.
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# TODO(ajaeger): enable PDF building, for example add 'rst2pdf.pdfbuilder'
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# extensions =
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# Add any paths that contain templates here, relative to this directory.
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# templates_path = ['_templates']
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# The suffix of source filenames.
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source_suffix = '.rst'
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# The encoding of source files.
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# source_encoding = 'utf-8-sig'
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# The master toctree document.
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master_doc = 'index'
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# General information about the project.
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project = u'Installation Guide for Messaging Service'
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bug_tag = u'install-guide'
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copyright = u'2016, OpenStack contributors'
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# The version info for the project you're documenting, acts as replacement for
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# |version| and |release|, also used in various other places throughout the
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# built documents.
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#
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# The short X.Y version.
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version = '0.1'
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# The full version, including alpha/beta/rc tags.
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release = '0.1'
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# A few variables have to be set for the log-a-bug feature.
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# giturl: The location of conf.py on Git. Must be set manually.
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# gitsha: The SHA checksum of the bug description. Automatically extracted
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# from git log.
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# bug_tag: Tag for categorizing the bug. Must be set manually.
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# These variables are passed to the logabug code via html_context.
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giturl = (u'http://git.openstack.org/cgit/openstack/zaqar/tree/install-guide'
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u'/source')
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git_cmd = "/usr/bin/git log | head -n1 | cut -f2 -d' '"
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gitsha = os.popen(git_cmd).read().strip('\n')
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html_context = {"gitsha": gitsha, "bug_tag": bug_tag,
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"giturl": giturl}
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# The language for content autogenerated by Sphinx. Refer to documentation
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# for a list of supported languages.
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# language = None
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# There are two options for replacing |today|: either, you set today to some
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# non-false value, then it is used:
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# today = ''
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# Else, today_fmt is used as the format for a strftime call.
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# today_fmt = '%B %d, %Y'
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# List of patterns, relative to source directory, that match files and
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# directories to ignore when looking for source files.
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exclude_patterns = []
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# The reST default role (used for this markup: `text`) to use for all
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# documents.
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# default_role = None
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# If true, '()' will be appended to :func: etc. cross-reference text.
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# add_function_parentheses = True
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# If true, the current module name will be prepended to all description
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# unit titles (such as .. function::).
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# add_module_names = True
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# If true, sectionauthor and moduleauthor directives will be shown in the
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# output. They are ignored by default.
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# show_authors = False
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# The name of the Pygments (syntax highlighting) style to use.
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pygments_style = 'sphinx'
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# A list of ignored prefixes for module index sorting.
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# modindex_common_prefix = []
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# If true, keep warnings as "system message" paragraphs in the built documents.
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# keep_warnings = False
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# -- Options for HTML output ----------------------------------------------
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# The theme to use for HTML and HTML Help pages. See the documentation for
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# a list of builtin themes.
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html_theme = 'openstackdocs'
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# Theme options are theme-specific and customize the look and feel of a theme
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# further. For a list of options available for each theme, see the
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# documentation.
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# html_theme_options = {}
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# Add any paths that contain custom themes here, relative to this directory.
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html_theme_path = [openstackdocstheme.get_html_theme_path()]
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# The name for this set of Sphinx documents. If None, it defaults to
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# "<project> v<release> documentation".
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# html_title = None
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# A shorter title for the navigation bar. Default is the same as html_title.
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# html_short_title = None
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# The name of an image file (relative to this directory) to place at the top
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# of the sidebar.
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# html_logo = None
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# The name of an image file (within the static path) to use as favicon of the
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# docs. This file should be a Windows icon file (.ico) being 16x16 or 32x32
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# pixels large.
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# html_favicon = None
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# Add any paths that contain custom static files (such as style sheets) here,
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# relative to this directory. They are copied after the builtin static files,
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# so a file named "default.css" will overwrite the builtin "default.css".
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# html_static_path = []
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# Add any extra paths that contain custom files (such as robots.txt or
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# .htaccess) here, relative to this directory. These files are copied
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# directly to the root of the documentation.
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# html_extra_path = []
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# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
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# using the given strftime format.
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# So that we can enable "log-a-bug" links from each output HTML page, this
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# variable must be set to a format that includes year, month, day, hours and
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# minutes.
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html_last_updated_fmt = '%Y-%m-%d %H:%M'
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# If true, SmartyPants will be used to convert quotes and dashes to
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# typographically correct entities.
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# html_use_smartypants = True
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# Custom sidebar templates, maps document names to template names.
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# html_sidebars = {}
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# Additional templates that should be rendered to pages, maps page names to
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# template names.
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# html_additional_pages = {}
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# If false, no module index is generated.
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# html_domain_indices = True
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# If false, no index is generated.
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html_use_index = False
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# If true, the index is split into individual pages for each letter.
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# html_split_index = False
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# If true, links to the reST sources are added to the pages.
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html_show_sourcelink = False
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# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
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# html_show_sphinx = True
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# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
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# html_show_copyright = True
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# If true, an OpenSearch description file will be output, and all pages will
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# contain a <link> tag referring to it. The value of this option must be the
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# base URL from which the finished HTML is served.
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# html_use_opensearch = ''
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# This is the file name suffix for HTML files (e.g. ".xhtml").
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# html_file_suffix = None
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# Output file base name for HTML help builder.
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htmlhelp_basename = 'install-guide'
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# If true, publish source files
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html_copy_source = False
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# -- Options for LaTeX output ---------------------------------------------
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latex_elements = {
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# The paper size ('letterpaper' or 'a4paper').
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# 'papersize': 'letterpaper',
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# The font size ('10pt', '11pt' or '12pt').
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# 'pointsize': '10pt',
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# Additional stuff for the LaTeX preamble.
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# 'preamble': '',
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}
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# Grouping the document tree into LaTeX files. List of tuples
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# (source start file, target name, title,
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# author, documentclass [howto, manual, or own class]).
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latex_documents = [
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('index', 'InstallGuide.tex', u'Install Guide',
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u'OpenStack contributors', 'manual'),
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]
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# The name of an image file (relative to this directory) to place at the top of
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# the title page.
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# latex_logo = None
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# For "manual" documents, if this is true, then toplevel headings are parts,
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# not chapters.
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# latex_use_parts = False
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# If true, show page references after internal links.
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# latex_show_pagerefs = False
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# If true, show URL addresses after external links.
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# latex_show_urls = False
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# Documents to append as an appendix to all manuals.
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# latex_appendices = []
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# If false, no module index is generated.
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# latex_domain_indices = True
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# -- Options for manual page output ---------------------------------------
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# One entry per manual page. List of tuples
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# (source start file, name, description, authors, manual section).
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man_pages = [
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('index', 'installguide', u'Install Guide',
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[u'OpenStack contributors'], 1)
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]
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# If true, show URL addresses after external links.
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# man_show_urls = False
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# -- Options for Texinfo output -------------------------------------------
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# Grouping the document tree into Texinfo files. List of tuples
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# (source start file, target name, title, author,
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# dir menu entry, description, category)
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texinfo_documents = [
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('index', 'InstallGuide', u'Install Guide',
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u'OpenStack contributors', 'InstallGuide',
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'This guide shows OpenStack end users how to install '
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'an OpenStack cloud.', 'Miscellaneous'),
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]
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# Documents to append as an appendix to all manuals.
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# texinfo_appendices = []
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# If false, no module index is generated.
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# texinfo_domain_indices = True
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# How to display URL addresses: 'footnote', 'no', or 'inline'.
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# texinfo_show_urls = 'footnote'
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# If true, do not generate a @detailmenu in the "Top" node's menu.
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# texinfo_no_detailmenu = False
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# -- Options for Internationalization output ------------------------------
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locale_dirs = ['locale/']
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# -- Options for PDF output --------------------------------------------------
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pdf_documents = [
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('index', u'InstallGuide', u'Install Guide',
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u'OpenStack contributors')
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]
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@ -0,0 +1,65 @@
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==========================
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Messaging service overview
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==========================
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The Message service is multi-tenant, fast, reliable, and scalable. It allows
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developers to share data between distributed application components performing
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different tasks, without losing messages or requiring each component to be
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always available.
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The service features a RESTful API and a Websocket API, which developers can
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use to send messages between various components of their SaaS and mobile
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applications, by using a variety of communication patterns.
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Key features
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~~~~~~~~~~~~
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The Messaging service provides the following key features:
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* Choice between two communication transports. Both with Identity service
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support:
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* Firewall-friendly, **HTTP-based RESTful API**. Many of today's developers
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prefer a more web-friendly HTTP API. They value the simplicity and
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transparency of the protocol, its firewall-friendly nature, and its huge
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ecosystem of tools, load balancers and proxies. In addition, cloud
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operators appreciate the scalability aspects of the REST architectural
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style.
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* **Websocket-based API** for persistent connections. Websocket protocol
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provides communication over persistent connections. Unlike HTTP, where
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new connections are opened for each request/response pair, Websocket can
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transfer multiple requests/responses over single TCP connection. It saves
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much network traffic and minimizes delays.
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* Multi-tenant queues based on Identity service IDs.
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* Support for several common patterns including event broadcasting, task
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distribution, and point-to-point messaging.
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* Component-based architecture with support for custom back ends and message
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filters.
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* Efficient reference implementation with an eye toward low latency and high
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throughput (dependent on back end).
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* Highly-available and horizontally scalable.
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* Support for subscriptions to queues. Several notification types are
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available:
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* Email notifications
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* Webhook notifications
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* Websocket notifications
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Layers of the Messaging service
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The Messaging service has following layers:
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* The transport layer (Messaging application) which can provide these APIs:
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* HTTP RESTful API (via ``wsgi`` driver).
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* Websocket API (via ``websocket`` driver).
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* The storage layer which keeps all the data and metadata about queues and
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messages. It has two sub-layers:
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* The management store database (Catalog). Can be ``MongoDB`` database (or
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``MongoDB`` replica-set) or SQL database.
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* The message store databases (Pools). Can be ``MongoDB`` database (or
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``MongoDB`` replica-set) or ``Redis`` database.
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@ -0,0 +1,22 @@
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=================
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Messaging service
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=================
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.. toctree::
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get_started.rst
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install.rst
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verify.rst
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next-steps.rst
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The Messaging service is multi-tenant, fast, reliable, and scalable. It allows
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developers to share data between distributed application components performing
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different tasks, without losing messages or requiring each component to be
|
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always available.
|
||||
|
||||
The service features a RESTful API and a Websocket API, which developers can
|
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use to send messages between various components of their SaaS and mobile
|
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applications, by using a variety of communication patterns.
|
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This chapter assumes a working setup of OpenStack following the base
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Installation Guide.
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.. _install-rdo:
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Install and configure for Red Hat Enterprise Linux and CentOS
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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This section describes how to install and configure the Messaging service,
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code-named ``zaqar`` for Red Hat Enterprise Linux 7 and CentOS 7.
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This section assumes that you already have a working OpenStack environment with
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at least Identity service installed.
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Here you can find instructions and recommended settings for installing
|
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Messaging service in small configuration: one web server with Messaging service
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configured to use replica-set of three ``MongoDB`` database servers. Because
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only one web server is used, the Messaging service installed by using these
|
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instructions can't be considered as high available, see :doc:`install`.
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In this tutorial these server names are used as examples:
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* Web server with Messaging service: ``WEB0.EXAMPLE-MESSAGES.NET``.
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* Database servers: ``MYDB0.EXAMPLE-MESSAGES.NET``,
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``MYDB1.EXAMPLE-MESSAGES.NET``, ``MYDB2.EXAMPLE-MESSAGES.NET``.
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* Identity service server: ``IDENTITY.EXAMPLE-MESSAGES.NET``.
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Prerequisites
|
||||
-------------
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||||
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||||
Before you install Messaging service, you must meet the following system
|
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requirements:
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||||
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* Installed Identity service for user and project management.
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* Python 2.7.
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Before you install and configure Messaging, you must create a ``MongoDB``
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||||
replica-set of three database servers. Also you need to create service
|
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credentials and API endpoints in Identity.
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#. Install and configure ``MongoDB`` replica-set on database servers:
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||||
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||||
#. Install ``MongoDB`` on the database servers:
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||||
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||||
On each database server follow the official `MongoDB installation
|
||||
instructions`_.
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||||
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||||
.. note::
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||||
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||||
Messaging service works with ``MongoDB`` versions >= 2.4
|
||||
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||||
#. Configure ``MongoDB`` on the database servers:
|
||||
|
||||
On each database server edit configuration file: ``/etc/mongod.conf`` and
|
||||
modify as needed:
|
||||
|
||||
.. code-block:: ini
|
||||
|
||||
# MongoDB sample configuration for Messaging service.
|
||||
# (For MongoDB version >= 2.6)
|
||||
# Edit according to your needs.
|
||||
systemLog:
|
||||
destination: file
|
||||
logAppend: true
|
||||
path: /var/log/mongodb/mongod.log
|
||||
|
||||
storage:
|
||||
dbPath: /var/lib/mongo
|
||||
journal:
|
||||
enabled: false
|
||||
|
||||
processManagement:
|
||||
fork: true # fork and run in background
|
||||
pidFilePath: /var/run/mongodb/mongod.pid # location of pidfile
|
||||
|
||||
net:
|
||||
port: 27017
|
||||
# bindIp: 127.0.0.1 # Listen to local interface only, comment to listen on all interfaces.
|
||||
|
||||
operationProfiling:
|
||||
slowOpThresholdMs: 200
|
||||
mode: slowOp
|
||||
|
||||
replication:
|
||||
oplogSizeMB: 2048
|
||||
replSetName: catalog
|
||||
|
||||
.. note::
|
||||
|
||||
In case of older ``MongoDB`` versions (2.4 and 2.5) the configuration
|
||||
file should be written in different format. For information about
|
||||
format for different versions see the official `MongoDB configuration
|
||||
reference`_.
|
||||
|
||||
.. warning::
|
||||
|
||||
Additional steps are required to secure ``MongoDB`` installation. You
|
||||
should modify this configuration for your security requirements. See
|
||||
the official `MongoDB security reference`_.
|
||||
|
||||
#. Start ``MongoDB`` on the database servers:
|
||||
|
||||
Start ``MongoDB`` service on all database servers:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@MYDBX# systemctl start mongod
|
||||
|
||||
Make ``MongoDB`` service start automatically after reboot:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@MYDBX# systemctl enable mongod
|
||||
|
||||
#. Configure ``MongoDB`` Replica Set on the database servers:
|
||||
|
||||
Once you've installed ``MongoDB`` on three servers and assuming that the
|
||||
primary ``MongoDB`` server hostname is ``MYDB0.EXAMPLE-MESSAGES.NET``, go
|
||||
to ``MYDB0`` and run these commands:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@MYDB0# mongo local --eval "printjson(rs.initiate())"
|
||||
root@MYDB0# mongo local --eval "printjson(rs.add('MYDB1.EXAMPLE-MESSAGES.NET'))"
|
||||
root@MYDB0# mongo local --eval "printjson(rs.add('MYDB2.EXAMPLE-MESSAGES.NET'))"
|
||||
|
||||
.. note::
|
||||
|
||||
The database servers must have access to each other and also be
|
||||
accessible from the Messaging service web server. Configure firewalls
|
||||
on all database servers to accept incoming connections to port
|
||||
``27017`` from the needed source.
|
||||
|
||||
To check if the replica-set is established see the output of this
|
||||
command:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@MYDB0# mongo local --eval "printjson(rs.status())"
|
||||
|
||||
#. Source the ``admin`` credentials to gain access to admin-only CLI commands:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
$ . admin-openrc
|
||||
|
||||
#. To create the service credentials, complete these steps:
|
||||
|
||||
#. Create the ``zaqar`` user:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
$ openstack user create --domain default --password-prompt zaqar
|
||||
User Password:
|
||||
Repeat User Password:
|
||||
+-----------+----------------------------------+
|
||||
| Field | Value |
|
||||
+-----------+----------------------------------+
|
||||
| domain_id | default |
|
||||
| enabled | True |
|
||||
| id | 7b0ffc83097148dab6ecbef6ddcc46bf |
|
||||
| name | zaqar |
|
||||
+-----------+----------------------------------+
|
||||
|
||||
#. Add the ``admin`` role to the ``zaqar`` user:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
$ openstack role add --project service --user zaqar admin
|
||||
|
||||
.. note::
|
||||
|
||||
This command provides no output.
|
||||
|
||||
#. Create the ``zaqar`` service entity:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
$ openstack service create --name zaqar --description "Messaging" messaging
|
||||
+-------------+----------------------------------+
|
||||
| Field | Value |
|
||||
+-------------+----------------------------------+
|
||||
| description | Messaging |
|
||||
| enabled | True |
|
||||
| id | b39c22818be5425ba2315dd4b10cd57c |
|
||||
| name | zaqar |
|
||||
| type | messaging |
|
||||
+-------------+----------------------------------+
|
||||
|
||||
#. Create the Messaging service API endpoints:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
$ openstack endpoint create --region RegionOne messaging public http://WEB0.EXAMPLE-MESSAGES.NET:8888
|
||||
+--------------+---------------------------------------+
|
||||
| Field | Value |
|
||||
+--------------+---------------------------------------+
|
||||
| enabled | True |
|
||||
| id | aabca78860e74c4db0bcb36167bfe106 |
|
||||
| interface | public |
|
||||
| region | RegionOne |
|
||||
| region_id | RegionOne |
|
||||
| service_id | b39c22818be5425ba2315dd4b10cd57c |
|
||||
| service_name | zaqar |
|
||||
| service_type | messaging |
|
||||
| url | http://WEB0.EXAMPLE-MESSAGES.NET:8888 |
|
||||
+--------------+---------------------------------------+
|
||||
|
||||
$ openstack endpoint create --region RegionOne messaging internal http://WEB0.EXAMPLE-MESSAGES.NET:8888
|
||||
+--------------+---------------------------------------+
|
||||
| Field | Value |
|
||||
+--------------+---------------------------------------+
|
||||
| enabled | True |
|
||||
| id | 07f9524613de4fd3905e13a87f81fd3f |
|
||||
| interface | internal |
|
||||
| region | RegionOne |
|
||||
| region_id | RegionOne |
|
||||
| service_id | b39c22818be5425ba2315dd4b10cd57c |
|
||||
| service_name | zaqar |
|
||||
| service_type | messaging |
|
||||
| url | http://WEB0.EXAMPLE-MESSAGES.NET:8888 |
|
||||
+--------------+---------------------------------------+
|
||||
|
||||
$ openstack endpoint create --region RegionOne messaging admin http://WEB0.EXAMPLE-MESSAGES.NET:8888
|
||||
+--------------+---------------------------------------+
|
||||
| Field | Value |
|
||||
+--------------+---------------------------------------+
|
||||
| enabled | True |
|
||||
| id | 686f7b19428f4b5aa1425667dfe4f49d |
|
||||
| interface | admin |
|
||||
| region | RegionOne |
|
||||
| region_id | RegionOne |
|
||||
| service_id | b39c22818be5425ba2315dd4b10cd57c |
|
||||
| service_name | zaqar |
|
||||
| service_type | messaging |
|
||||
| url | http://WEB0.EXAMPLE-MESSAGES.NET:8888 |
|
||||
+--------------+---------------------------------------+
|
||||
|
||||
Install and configure Messaging web server
|
||||
------------------------------------------
|
||||
|
||||
Install and configure ``memcached``, ``uWSGI`` and Messaging on the web server
|
||||
``WEB0.EXAMPLE-MESSAGES.NET``.
|
||||
|
||||
#. Install ``memcached`` on web server ``WEB0.EXAMPLE-MESSAGES.NET`` in order
|
||||
to cache Identity service tokens and catalog mappings:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@WEB0# yum install memcached
|
||||
|
||||
Start ``memcached`` service:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@WEB0# systemctl start memcached
|
||||
|
||||
Make ``memcached`` service start automatically after reboot:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@WEB0# systemctl enable memcached
|
||||
|
||||
#. Install Messaging service and ``uWSGI``:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@WEB0# yum -y install python-pip
|
||||
root@WEB0# git clone https://git.openstack.org/openstack/zaqar.git
|
||||
root@WEB0# cd zaqar
|
||||
root@WEB0# pip install . -r ./requirements.txt --upgrade --log /tmp/zaqar-pip.log
|
||||
root@WEB0# pip install --upgrade pymongo gevent uwsgi
|
||||
|
||||
#. Copy the Zaqar RBAC policy sample file to the directory ``etc/zaqar/``:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@WEB0# mkdir
|
||||
root@WEB0# cp etc/policy.json.sample /etc/zaqar/policy.json
|
||||
|
||||
#. Create log file:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@WEB0# touch /var/log/zaqar-server.log
|
||||
root@WEB0# chown ZAQARUSER:ZAQARUSER /var/log/zaqar-server.log
|
||||
root@WEB0# chmod 600 /var/log/zaqar-server.log
|
||||
|
||||
Replace ``ZAQARUSER`` with the name of the user in system under which the
|
||||
Messaging service will run.
|
||||
|
||||
#. Create ``/srv/zaqar`` folder to store ``uWSGI`` configuration files.
|
||||
|
||||
#. Create ``/srv/zaqar/zaqar_uwsgi.py`` with the following content:
|
||||
|
||||
.. code-block:: python
|
||||
|
||||
from keystonemiddleware import auth_token
|
||||
from zaqar.transport.wsgi import app
|
||||
|
||||
app = auth_token.AuthProtocol(app.app, {})
|
||||
|
||||
#. Increase backlog listen limit from default (128):
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@WEB0# echo "net.core.somaxconn=2048" | sudo tee --append /etc/sysctl.conf
|
||||
|
||||
#. Create ``/srv/zaqar/uwsgi.ini`` file with the following content and modify
|
||||
as needed:
|
||||
|
||||
.. code-block:: ini
|
||||
|
||||
[uwsgi]
|
||||
https = WEB0.EXAMPLE-MESSAGES.NET:8888,PATH_TO_SERVER_CRT,PATH_TO_SERVER_PRIVATE_KEY
|
||||
pidfile = /var/run/zaqar.pid
|
||||
gevent = 2000
|
||||
gevent-monkey-patch = true
|
||||
listen = 1024
|
||||
enable-threads = true
|
||||
module = zaqar_uwsgi:app
|
||||
workers = 4
|
||||
harakiri = 60
|
||||
add-header = Connection: close
|
||||
|
||||
Replace ``PATH_TO_SERVER_CRT`` with path to the server's certificate
|
||||
(``*.crt``) and ``PATH_TO_SERVER_PRIVATE_KEY`` with path to the server's
|
||||
private key (``*.key``).
|
||||
|
||||
.. note::
|
||||
|
||||
The ``uWSGI`` configuration options above can be modified for different
|
||||
security and performance requirements including load balancing. See the
|
||||
official `uWSGI configuration reference`_.
|
||||
|
||||
#. Create Messaging service's configuration file ``/etc/zaqar.conf`` with the
|
||||
following content:
|
||||
|
||||
.. code-block:: ini
|
||||
|
||||
[DEFAULT]
|
||||
# Show debugging output in logs (sets DEBUG log level output)
|
||||
#debug = False
|
||||
|
||||
# Pooling and admin mode configs
|
||||
pooling = True
|
||||
admin_mode = True
|
||||
|
||||
# Log to file
|
||||
log_file = /var/log/zaqar-server.log
|
||||
|
||||
# This is taken care of in our custom app.py, so disable here
|
||||
;auth_strategy = keystone
|
||||
|
||||
# Modify to make it work with your Identity service.
|
||||
[keystone_authtoken]
|
||||
project_domain_name = Default
|
||||
user_domain_name = Default
|
||||
project_domain_id = default
|
||||
project_name = service
|
||||
user_domain_id = default
|
||||
# File path to a PEM encoded Certificate Authority to use when verifying
|
||||
# HTTPs connections. Defaults to system CAs if commented.
|
||||
cafile = PATH_TO_CA_FILE
|
||||
# Messaging service user name in Identity service.
|
||||
username = ZAQARIDENTITYUSER
|
||||
# Messaging service password in Identity service.
|
||||
password = ZAQARIDENTITYPASSWORD
|
||||
# Complete public Identity API endpoint (HTTPS protocol is more preferable
|
||||
# than HTTP).
|
||||
auth_uri = HTTPS://IDENTITY.EXAMPLE-MESSAGES.NET:5000
|
||||
# Complete admin Identity API endpoint (HTTPS protocol is more preferable
|
||||
# than HTTP).
|
||||
auth_url = HTTPS://IDENTITY.EXAMPLE-MESSAGES.NET:35357
|
||||
# Token cache time in seconds.
|
||||
token_cache_time = TOKEN_CACHE_TIME
|
||||
memcached_servers = 127.0.0.1:11211
|
||||
|
||||
[cache]
|
||||
# Dogpile.cache backend module. It is recommended that Memcache with
|
||||
# pooling (oslo_cache.memcache_pool) or Redis (dogpile.cache.redis) be
|
||||
# used in production deployments. Small workloads (single process)
|
||||
# like devstack can use the dogpile.cache.memory backend. (string
|
||||
# value)
|
||||
backend = dogpile.cache.memory
|
||||
memcache_servers = 127.0.0.1:11211
|
||||
|
||||
[drivers]
|
||||
transport = wsgi
|
||||
message_store = mongodb
|
||||
management_store = mongodb
|
||||
|
||||
[drivers:management_store:mongodb]
|
||||
# Mongodb Connection URI. If ssl connection enabled, then ssl_keyfile,
|
||||
# ssl_certfile, ssl_cert_reqs, ssl_ca_certs options need to be set
|
||||
# accordingly.
|
||||
uri = mongodb://MYDB0.EXAMPLE-MESSAGES.NET,MYDB1.EXAMPLE-MESSAGES.NET,MYDB2.EXAMPLE-MESSAGES.NET:27017/?replicaSet=catalog&w=2&readPreference=secondaryPreferred
|
||||
|
||||
# Name for the database on mongodb server.
|
||||
database = zaqarmanagementstore
|
||||
|
||||
# Number of databases across which to partition message data, in order
|
||||
# to reduce writer lock %. DO NOT change this setting after initial
|
||||
# deployment. It MUST remain static. Also, you should not need a large
|
||||
# number of partitions to improve performance, esp. if deploying
|
||||
# MongoDB on SSD storage. (integer value)
|
||||
partitions = 8
|
||||
|
||||
# Uncomment any options below if needed.
|
||||
|
||||
# Maximum number of times to retry a failed operation. Currently
|
||||
# only used for retrying a message post.
|
||||
;max_attempts = 1000
|
||||
|
||||
# Maximum sleep interval between retries (actual sleep time
|
||||
# increases linearly according to number of attempts performed).
|
||||
;max_retry_sleep = 0.1
|
||||
|
||||
# Maximum jitter interval, to be added to the sleep interval, in
|
||||
# order to decrease probability that parallel requests will retry
|
||||
# at the same instant.
|
||||
;max_retry_jitter = 0.005
|
||||
|
||||
# Frequency of message garbage collections, in seconds
|
||||
;gc_interval = 5 * 60
|
||||
|
||||
# Threshold of number of expired messages to reach in a given
|
||||
# queue, before performing the GC. Useful for reducing frequent
|
||||
# locks on the DB for non-busy queues, or for worker queues
|
||||
# which process jobs quickly enough to keep the number of in-
|
||||
# flight messages low.
|
||||
#
|
||||
# Note: The higher this number, the larger the memory-mapped DB
|
||||
# files will be.
|
||||
;gc_threshold = 1000
|
||||
|
||||
[drivers:message_store:mongodb]
|
||||
# This section has same set of available options as
|
||||
# "[drivers:management_store:mongodb]" section.
|
||||
#
|
||||
# If pooling is enabled, all pools inherit values from options in these
|
||||
# settings unless overridden in pool creation request. Also "uri" option
|
||||
# value isn't used in case of pooling.
|
||||
#
|
||||
# If ssl connection enabled, then ssl_keyfile, ssl_certfile, ssl_cert_reqs,
|
||||
# ssl_ca_certs options need to be set accordingly.
|
||||
|
||||
# Name for the database on MondoDB server.
|
||||
database = zaqarmessagestore
|
||||
|
||||
[transport]
|
||||
max_queues_per_page = 1000
|
||||
max_queue_metadata = 262144
|
||||
max_mesages_per_page = 10
|
||||
max_messages_post_size = 262144
|
||||
max_message_ttl = 1209600
|
||||
max_claim_ttl = 43200
|
||||
max_claim_grace = 43200
|
||||
|
||||
[signed_url]
|
||||
# Secret key used to encrypt pre-signed URLs. (string value)
|
||||
secret_key = SOMELONGSECRETKEY
|
||||
|
||||
Edit any options as needed, especially the options with capitalized values.
|
||||
|
||||
#. Create a service file for Messaging service
|
||||
``/etc/systemd/system/zaqaruwsgi.service``:
|
||||
|
||||
.. code-block:: ini
|
||||
|
||||
[Unit]
|
||||
Description=uWSGI Zaqar
|
||||
After=syslog.target
|
||||
|
||||
[Service]
|
||||
ExecStart=/usr/bin/uwsgi --ini /srv/zaqar/uwsgi.ini
|
||||
# Requires systemd version 211 or newer
|
||||
RuntimeDirectory=uwsgi
|
||||
Restart=always
|
||||
KillSignal=SIGQUIT
|
||||
Type=notify
|
||||
StandardError=syslog
|
||||
NotifyAccess=all
|
||||
User=ZAQARUSER
|
||||
Group=ZAQARUSER
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
|
||||
Replace ``ZAQARUSER`` with the name of the user in system under which the
|
||||
Messaging service will run.
|
||||
|
||||
Finalize installation
|
||||
---------------------
|
||||
|
||||
Now after you have configured the web server and the database servers to have a
|
||||
functional Messaging service, you need to start the service, make the service
|
||||
automatically start with the system and define the created ``MongoDB``
|
||||
replica-set as Messaging's pool.
|
||||
|
||||
#. Start Messaging service on the web server:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@WEB0# systemctl start zaqar.uwsgi.service
|
||||
|
||||
#. Make Messaging service start automatically after reboot on the web server:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@WEB0# systemctl enable zaqar.uwsgi.service
|
||||
|
||||
#. Configure pool:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
root@WEB0# curl -i -X PUT https://WEB0.EXAMPLE-MESSAGES.NET:8888/v2/pools/POOL1 \
|
||||
-d '{"weight": 100, "uri": "mongodb://MYDB0.EXAMPLE-MESSAGES.NET,MYDB1.EXAMPLE-MESSAGES.NET,MYDB2.EXAMPLE-MESSAGES.NET:27017/?replicaSet=catalog&w=2&readPreference=secondaryPreferred", "options": {"partitions": 8}}' \
|
||||
-H "Client-ID: CLIENT_ID" \
|
||||
-H "X-Auth-Token: TOKEN" \
|
||||
-H "Content-type: application/json" \
|
||||
|
||||
Replace ``POOL1`` variable with the desired name of a pool.
|
||||
|
||||
Replace ``CLIENT_ID`` variable with the universally unique identifier (UUID)
|
||||
which can be generated by, for example, ``uuidgen`` utility.
|
||||
|
||||
Replace ``TOKEN`` variable with the authentication token retrieved from
|
||||
Identity service. If you choose not to enable Keystone authentication you
|
||||
won't have to pass a token.
|
||||
|
||||
.. note::
|
||||
|
||||
The ``options`` key in curl request above overrides any options
|
||||
(specified in configuration file or default) in
|
||||
``[drivers:message_store:mongodb]`` Messaging service configuration
|
||||
file's section.
|
||||
|
||||
.. tip::
|
||||
|
||||
In larger deployments, there should be many load balanced web servers. Also
|
||||
the management store databases and the message store databases (pools)
|
||||
should be on different ``MongoDB`` replica-sets.
|
||||
|
||||
.. _`MongoDB installation instructions`: https://docs.mongodb.org/manual/tutorial/install-mongodb-on-red-hat/
|
||||
.. _`MongoDB configuration reference`: https://docs.mongodb.org/v3.0/reference/configuration-options/
|
||||
.. _`MongoDB security reference`: https://docs.mongodb.org/manual/security/
|
||||
.. _`uWSGI configuration reference`: http://uwsgi-docs.readthedocs.io/en/latest/
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
.. _install:
|
||||
|
||||
Install and configure
|
||||
~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
This section describes how to install and configure the Messaging service,
|
||||
code-named zaqar.
|
||||
|
||||
This section assumes that you already have a working OpenStack environment with
|
||||
at least Identity service installed.
|
||||
|
||||
Note that installation and configuration vary by distribution.
|
||||
|
||||
.. toctree::
|
||||
|
||||
install-rdo.rst
|
||||
|
||||
Possible Minimum Scalable HA Setup
|
||||
----------------------------------
|
||||
|
||||
Scalable HA (High availability) setup is out of scope in this chapter.
|
||||
|
||||
For a HA setup, a load balancer has to be placed in front of the web servers.
|
||||
|
||||
To provide high availability with minimum administration overhead for storage
|
||||
use ``MongoDB`` driver and for transport use ``wsgi`` driver.
|
||||
|
||||
To have a small footprint while providing HA, you can use two web servers which
|
||||
will host the application and three ``MongoDB`` servers (configured as
|
||||
replica-set) which will host Messaging service's management store and
|
||||
message store databases. At larger scale, the management store database and the
|
||||
message store database are advised to be hosted on different ``MongoDB``
|
||||
replica sets.
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
.. _next-steps:
|
||||
|
||||
Next steps
|
||||
~~~~~~~~~~
|
||||
|
||||
Your OpenStack environment now includes the Messaging service.
|
||||
|
||||
To add additional services, see the
|
||||
`additional documentation on installing OpenStack <http://docs.openstack.org/#install-guides>`_ .
|
||||
|
|
@ -0,0 +1,36 @@
|
|||
.. _verify:
|
||||
|
||||
Verify operation
|
||||
~~~~~~~~~~~~~~~~
|
||||
|
||||
Verify operation of the Messaging service by creating messages via curl
|
||||
utility:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
$ curl -i -X POST http://ZAQAR_ENDPOINT:8888/v2/queues/samplequeue/messages \
|
||||
-d '{"messages": [{"body": {"event": 1}, "ttl": 600}, {"body": {"event": 2}, "ttl": 600}]}' \
|
||||
-H "Content-type: application/json" \
|
||||
-H "Client-ID: CLIENT_ID" \
|
||||
-H "X-Auth-ToKen: TOKEN"
|
||||
|
||||
Replace ``CLIENT_ID`` variable with the universally unique identifier (UUID)
|
||||
which can be generated by, for example, ``uuidgen`` utility.
|
||||
|
||||
Replace ``TOKEN`` variable with the authentication token retrieved from
|
||||
Identity service. If you choose not to enable Keystone authentication you
|
||||
won't have to pass a token.
|
||||
|
||||
Replace ``ZAQAR_ENDPOINT`` variable with the endpoint of Messaging service.
|
||||
|
||||
The normal response would be with status code 201 and look something like this:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
HTTP/1.1 201 Created
|
||||
content-length: 135
|
||||
content-type: application/json; charset=UTF-8
|
||||
location: http://ZAQAR_ENDPOINT:8888/v2/queues/samplequeue/messages?ids=575f6f2515e5c87d779a9b20,575f6f2515e5c87d779a9b21
|
||||
Connection: close
|
||||
|
||||
{"resources": ["/v2/queues/samplequeue/messages/575f6f2515e5c87d779a9b20", "/v2/queues/samplequeue/messages/575f6f2515e5c87d779a9b21"]}
|
||||
|
|
@ -24,6 +24,7 @@ testtools>=1.4.0 # MIT
|
|||
sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2 # BSD
|
||||
oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
|
||||
openstack-doc-tools>=0.23 # Apache-2.0
|
||||
openstackdocstheme>=1.0.3 # Apache-2.0
|
||||
oslotest>=1.10.0 # Apache-2.0
|
||||
reno>=1.6.2 # Apache2
|
||||
os-api-ref>=0.1.0 # Apache-2.0
|
||||
|
|
|
|||
6
tox.ini
6
tox.ini
|
|
@ -77,3 +77,9 @@ max-complexity = 16
|
|||
[hacking]
|
||||
import_exceptions = zaqar.openstack.common.gettextutils._,zaqar.i18n._
|
||||
|
||||
[testenv:install-guide]
|
||||
# NOTE(jaegerandi): this target does not use constraints because
|
||||
# upstream infra does not yet support it. Once that's fixed, we can
|
||||
# drop the install_command.
|
||||
install_command = pip install -U --force-reinstall {opts} {packages}
|
||||
commands = sphinx-build -a -E -W -d install-guide/build/doctrees -b html install-guide/source install-guide/build/html
|
||||
Loading…
Reference in New Issue