Planning your OpenStack Cloud. Tom

Transcription

1 Panning your OpenStack Coud Tom

2 Introduction Software Engineering Partice Physics Buiding Couds OpenStack Community Manager Much of this presentation is based on the OpenStack Operations Guide 2

3 What is OpenStack? 3

4 What is OpenStack? Technoogy Patform Compute Object Storage Bock Storage Networking Dashboard Shared Services Provision and manage arge poos of on-demand computing resources Petabytes of reiabe storage on standard gear Voumes on commodity storage gear, and drivers for more vendor systems Software defined networking automation with puggabe backends Sef-service, roe-based web interface for users and administrators Muti-tenant authentication system that ties to existing stores (e.g. LDAP), Image Service 4

5 Choose your eve DIY It s just another software product, right? Training Train Staff.. Have Coud Support Where did we go wrong? Systems Integration Software Appiance POC Pease add feature X. Make it work with my biing system. Purchase hardware. Purchase software. Insta. Have coud. Buy a box. Unwrap it. Pug in power and network. Have coud. Make a new VM, cd devstack &&./stack.sh Pubic Coud Swipe creditcard. Have coud. 5

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14 You have seected. DIY It s just another software product, right? 14

15 Storage which pugin? want this? Used to Accessed through Accessibe from Managed by Ephemera storage Bock storage Object storage Run operating system and scratch space A fie system Add additiona persistent storage to a virtua machine (VM) A bock device that can be partitioned, formatted and mounted (such as, /dev/vdc) Store data, incuding VM images REST API Within a VM Within a VM Anywhere OpenStack Compute (Nova) OpenStack Bock Storage (Cinder) OpenStack Object Storage (Swift) Persists unti Sizing determined by Exampe of usage VM is terminated Deeted by user Deeted by user Administrator configures size settings, known as favors 10 GB first disk, 30GB second disk Specified by user in initia request Amount of avaiabe physica storage 1 TB disk 10s of TBs of dataset storage 15

16 Network Nova-network vs Neutron How many networks? Addressing? Open vswitch, CISCO Nexus, Linux Bridge, Nicira NCP, Ryu, NEC, Big Switch, Hyper-V, MidoNet, Brocade, PLUMGrid, Extreme, Ruijiu, Meanix or Juniper? 16

17 Coud controer design... Consideration How many instances wi run at once? How many compute nodes wi run at once? How many users wi access the API? How many users wi access the dashboard? How many nova-api to run? How ong does a singe instance run? Does your auth system aso verify externay? Ramification Size your database server accordingy, and scae out beyond one coud controer if many instances wi report status at the same time and scheduing where a new instance starts up needs computing power. Ensure that your messaging queue handes requests successfuy and size accordingy. If many users wi make mutipe requests, make sure that the CPU oad for the coud controer can hande. it. The dashboard makes many requests, even more than the API access, so add even more CPU if your dashboard is the main interface for your users. You need to size the controer with a core per service. Starting instances and deeting instances is demanding on the compute node but aso demanding on the controer node because of a the API queries and scheduing needs. Ensure network connectivity between the coud controer and externa authentication system are good and that the coud controer has the 17 CPU power to keep up with requests.

18 Automated Depoyment An automated depoyment system instas and configures operating systems on new servers, without intervention, after the absoute minimum amount of manua work. However, consider disk partitioning and network configuration Many ways of doing this see what is working for your distro Remote management 18

19 Automated Configuration Estabish and maintain the consistency of a system with no human intervention. Change managers ove this can test and ro back Pan your configuration items Puppet, Chef, Ansibe, SatStack recipes provided by the community 19

20 Scaing Up Use when you need Exampe Overhead Shared services Ces Regions Avaiabiity Zones A singe API endpoint for compute, or you require a second eve of scheduing. A coud with mutipe sites where you can schedue VMs "anywhere" or on a particuar site. A new service, nova-ces Each ce has a fu nova instaation except nova-api Keystone nova-api Not pictured: Object Storage, which scaes very easiy by adding machines as needed, or through goba custers Discrete regions with separate API endpoints and no coordination between regions. A coud with mutipe sites, where you schedue VMs to a particuar site and you want a shared infrastructure. A different API endpoint for every region. Each region has a fu nova instaation. Keystone Logica separation within your nova depoyment for physica isoation or redundancy. A singe site coud with equipment fed by separate power suppies. Configuration changes to nova.conf Keystone A nova services Host Aggregates To schedue a group of hosts with common features. Scheduing to hosts with trusted hardware support. Configuration changes to nova.conf Keystone A nova services 21

21 Customisation OpenStack doesn t quite do what you need? Add it, but contribute back if possibe Many things are puggabe Eg Object Storage middeware pipeine Eg Compute Scheduer Eg Dashboard Get a DevStack running and pay! 23

22 Interacting with the Community A deveopment is Open Etherpad Bueprint Coded Reviewed Reeased Coaborativey design features Competitors working together Every ine of code reviewed by at east two peope An extensive continuous integration and testing infrastructure Documentation, Transation, Infrastructure is a coaborative 24

23 When it fais Oh, it was just the firewa to the queue server again. 25 Check out Taes From the Cryp^H^H^H^H Coud!

24 When it fais: you are not aone Ask OpenStack! ( Your oca user group The comments section on that amost-reated bog 26

25 Recap Choose a eve Look at your Storage options Pan your network Get some metrics to design your coud controer Automate, Automate, Automate Scae up Customise Join the community! 27

26 What you get: Software Lines of code (ohoh)

27 What you get: Deveopers Contributors per month (ohoh)

28 What you get: Backup Participating Companies Launch Austin Bexar Cactus Diabo Essex 2-year anniversary Grizzy

29 See you in Hong Kong openstack.org/summit November 5-8, register now! Ca for speakers coses Juy 31 st Design Sessions: not a cassic track with speakers and presentations - generay an open brainstorming discussion on a given subject Conference Sessions: Keynotes, Case Studies, Ecosystem, Operations, Strategy, Workshops 31

30 Thank you for supporting OpenStack! Ask Questions at A text and image content in this document is icensed under the Creative Commons Attribution-Share Aike 3.0 License (uness otherwise specified). "OpenStack" is a registered trademark and respective ogos and icons are subject to internationa copyright aws. The use of these therefore is subject to the brand poicy. 32