Add Events section

Describe the Summits, PTGs, OpenStack Days and Meet-ups in sub-sections
and add the events section to the 'Code and Documentation', 'Users' and
'Operators' chapters.

Story: 2001901

Task: 14394
Task: 14395
Task: 14396
Task: 14397

Change-Id: I7b3795e9eb3f4885fde5a76fbe824bb01c746354

doc/source/code-and-documentation/index.rst

@@ -10,6 +10,7 @@ Code & Documentation Contributor Guide
    /common/accounts
    /common/git
    /common/communication
+   /common/events
    /common/setup-gerrit
    /code-and-documentation/using-gerrit
    /common/task-tracking

doc/source/common/events.rst

@@ -0,0 +1,120 @@
+######
+Events
+######
+
+OpenStack Events
+================
+
+The OpenStack Foundation organizes multiple events per year to bring together
+the community as well as companies and individuals interested in the technology
+and to embrace and encourage open collaboration.
+
+OpenStack/Open Infrastructure Summit
+------------------------------------
+
+The `Summits <https://www.openstack.org/summit/other-summits/>`_ are bi-annual
+events with thousands of attendees from all around the globe. The event in
+Spring is located in North America and the Fall occasions are alternating
+somewhere between Europe and Asia.
+
+The event is designed to bring together users, operators and developers to
+discuss feedback and future plans and you will also find a lot of options to
+collaborate with representatives from adjacent communities.
+
+To see how OpenStack and further OpenStack Foundation projects are utilized you
+will find exhibitors at the Market Place area.
+
+The sessions are grouped into two major parts, the conference and the Forum.
+
+Conference
+++++++++++
+
+The conference sessions consist of 40-minute-long presentations and panel
+discussions organized into tracks, like 'Public Clouds', 'Containers', or
+'Telecom/NFV'.
+
+There is a Call For Papers (CFP) process before each Summit where anyone can
+propose sessions for the upcoming event. After the CFP deadline the proposals
+go through a community vote after which a group of track chairs decide about
+the final content for each track.
+
+Forum
++++++
+
+The Forum sessions are also 40 minutes long, but the sessions are intended to
+be working sessions as opposed to presentations.
+
+The purpose of the Forum is to provide space for the developer and user
+community to get together and discuss feedback and find solution to problems
+and new challenges and requirements.
+
+The Forum sessions are proposed by the community through a proposal period and
+the final sessions are selected by a committee.
+
+You can find both the conference and Forum sessions on the Summit schedule.
+
+Project Teams Gathering (PTG)
+-----------------------------
+
+This event is created to provide space and time for developers and operators to
+get together and have detailed technical discussions.
+
+The `PTG <https://www.openstack.org/ptg/>`_ is one week long with working
+sessions organized in parallel tracks. The week is devided between Working
+Group, SIG, cross-project and project team sessions and further sessions
+dedicated to operations related discussions.
+
+PTGs are scheduled to the beginning of each release cycle which makes it
+possible to do a more thorough release planning and ensure that the more
+complicated proposals are discussed with all the affected teams.
+
+This event is recommended to developers, operators and end users who are
+already involved in community activities. If you are a new comer you might
+want to consider one of the OpenStack Summits first where you can find several
+sessions to help you find your way within the community.
+
+OpenDev
+-------
+
+`OpenDev <opendevconf.com>`_ is a small event designed for discussing new
+innovative technologies and use cases that are relevant to open infrastructure
+like Edge Computing or CI/CD.
+
+The event is occasionally co-located with the OpenStack Summit, in which case
+it is accessible to Summit attendees as well as a standalone event.
+
+Community-organized Events
+==========================
+
+There are community organized events all year all around the globe. Be sure
+you `check <https://www.openstack.org/community/events/>`_ when the next one is
+in your area!
+
+OpenStack/OpenInfra Days
+------------------------
+
+`OpenStack Days <https://www.openstack.org/community/events/openstackdays>`_
+events are similar to the OpenStack Summits that are organized by the local
+community, users groups and companies.
+
+The events are one or days long and filled with mainly presentations and panel
+discussions about the latest hot topics in the community's life. It gives you a
+great opportunity to meet the local community and find people who are
+interested in the same challenges and technology as you are. Connecting with
+people in the same region where you are gives you the advantage to be able to
+reach out easier to them later as they are in the same time zone, maybe even in
+the same city.
+
+In some cases there are training sessions and workshops as well and you can
+the `OpenStack Upstream Institute
+<https://docs.openstack.org/upstream-training/>`_ training on the agenda as
+well.
+
+Meet-ups
+--------
+
+Meet-ups are organized by local user groups with different cadence. They are a
+few hours long with a few presentations, discussion topics and some snacks.
+
+Look for meet-ups in your area and if you cannot find one you can go ahead and
+organize!

doc/source/operators/index.rst

@@ -9,6 +9,7 @@ Operators' Contributor Guide
    /common/irc
    /common/accounts
    /common/communication
+   /common/events
    /common/git
    /common/setup-gerrit
    /operators/participate

doc/source/users/index.rst

@@ -9,6 +9,7 @@ Users' Contributor Guide
    /common/irc
    /common/accounts
    /common/communication
+   /common/events
    /common/git
    /common/setup-gerrit
    /common/governance