DCU Techweek 2016 - Openstack: An Intro

A talk I gave in DCU to students, explaining what OpenStack is, and how it works.

Transcript

1. OpenStack: An Introduction A (slightly opinionated) view on clouds
2. Graham Hayes OpenStack Designate Project Technical Lead Kosmos Project Technical Lead Software Engineer in Hewlett Packard Enterprise Sudoer for DIT NetSoc graham@hayes.ie grahamhayes graham.hayes.ie irc mugsie
3. Open-wut?
4. The OpenStack mission is “to produce the ubiquitous Open Source Cloud Computing platform that will meet the needs of public and private clouds regardless of size, by being simple to implement and massively scalable”.
5. The Four Opens: Open Source Open Design Open Development Open Community
6. Open Source We do not produce “open core” software. We are committed to creating truly open source software that is usable and scalable. Truly open source software is not feature or performance limited and is not crippled. There will be no “Enterprise Edition”. We use the Apache License, 2.0.
7. Open Design We are committed to an open design process. Every six months the development community holds a design summit to gather requirements and write specifications for the upcoming release. The design summits, which are open to the public, include users, developers, and upstream projects. We gather requirements and produce an approved roadmap used to guide development for the next six months. The community controls the design process. You can help make this software meet your needs.
8. Open Development We maintain a publicly available source code repository through the entire development process. We do public code reviews. We have public roadmaps. This makes participation simpler, allows users to follow the development process and participate in QA at an early stage.
9. Open Community One of our core goals is to maintain a healthy, vibrant developer and user community. Most decisions are made using a lazy consensus model. All processes are documented, open and transparent. The technical governance of the project is a community meritocracy with contributors electing technical leads and members of the Technical Committee. All project meetings are held in public IRC channels and recorded. Additional technical communication is through public mailing lists and is archived.
10. N.A.S.A and RackSpace Announce a joint collaboration - “OpenStack” July 2010
11. July 2010 Announcement September 2012 The OpenStack foundation is formed
12. July 2010 Announcement September 2012 Foundation OpenStack opens the governance model and announces the “Big Tent” September 2014
13. O ct 2010 Feb 2011 Apr 2011 Sep 2011 Apr 2012 Sep 2012 Apr 2013 O ct 2013 Apr 2014 O ct 2014 Apr 2015 O ct 2015 Apr 2016 Austin Bexar Cactus Diablo Essex Folsom Grizzly Havana Icehouse Juno Kilo Liberty Mitaka We release every 6 months, and name each release after a place around the Design summit. There have been 12 releases of OpenStack so far, with the 13th (Mitaka) due in April
14. 0 10000 20000 30000 40000 Austin Bexar C actus D iablo Essex Folsom G rizzly H avana Icehouse Juno Kilo Liberty M itaka (so far) Commits
15. 0 750 1500 2250 3000 Austin Bexar C actus D iablo Essex Folsom G rizzly H avana Icehouse Juno Kilo Liberty M itaka (so far) Commiters
16. 0 15 30 45 60 Austin Bexar C actus D iablo Essex Folsom G rizzly H avana Icehouse Juno Kilo Liberty M itaka Projects
20. Nova Swift
21. Nova Swift Glance
22. Nova Swift Keystone Horizon Glance
23. Nova Swift Keystone Horizon Quantum (Neutron) Cinder Glance
24. Nova Swift Keystone Horizon Neutron Cinder Glance Heat Ceilometer Trove Ironic Designate Barbican Sahara Magnum
25. Nova Swift Keystone Horizon Neutron Cinder Glance Heat Ceilomete r Trove Ironic Designate Barbican Sahara Magnum Responsible for Authentication & Authorisation End User sends credentials Receives auth_token This can be used to identify the user by all other services
26. Nova Swift Keystone Horizon Neutron Cinder Glance Heat Ceilomete r Trove Ironic Designate Barbican Sahara Magnum The OpenStack UI Each project has panels for end users to interact with Written in Django / Angular
27. Nova Swift Keystone Neutron Cinder Glance Heat Ceilomete r Trove Ironic Designate Barbican Sahara Magnum Horizon Manages VMs Uses other service to build and connect VMs Can manage multiple hypervisors
28. Nova Swift Keystone Neutron Cinder Glance Heat Ceilomete r Trove Ironic Designate Barbican Sahara Magnum Horizon Stores VM Images VM images are the base OS + other tools Allows users to upload custom images Operators can also provide pre built images
29. Nova Swift Keystone Neutron Cinder Glance Heat Ceilomete r Trove Ironic Designate Barbican Sahara Magnum Horizon Networking for OpenStack Creates VPC style networks Has Load Balancing, Firewalling and VPN extensions
30. Nova Swift Keystone Neutron Cinder Glance Heat Ceilomete r Trove Ironic Designate Barbican Sahara Magnum Horizon DNS for OpenStack Can auto create DNS records when ports or VMs are created Supports multiple DNS Servers
31. Nova Swift Keystone Horizon Neutron Cinder Glance Heat Ceilometer Trove Ironic Designate Barbican Magnum Many More
32. Contributing • https://wiki.openstack.org/wiki/How_To_Contribute • http://docs.openstack.org/infra/manual/developers.html#account- setup
33. • Sign up to Launchpad • Create an account on Gerrit • Sign CLA • Find bugs! • https://bugs.launchpad.net/openstack
34. • We use Gerrit for code reviews • it is much easier to use the git-review tool • This is packaged by most linux distros and is in pypi • Each change needs to be approved by 2 “cores” • It will also need to pass style checks, unit tests and integration checks before it can merge
35. http://trystack.org/ http://docs.openstack.org/developer/devstack/