Flipkart's Private cloud provides a simple web service that allows the company to obtain more capacity with minimal friction

1. Kloud
Ops-ninjas@ kloud@

2. Aim
Provide a simple web service that
allows you to obtain more capacity
with minimal friction

3. Isolation
Redundancy
Super fast hardware allocation

4. Reduces the time required to obtain
and boot new machines

5. Integrates seamlessly with the
existing environment

7. for over a year
Staging servers before Kloud
3

8. within one month
Staging virtual servers after Kloud
150

9. time taken to allocate 60 servers
10 -15 days

10. time taken to allocate 60 servers
10 -15 mins

11. oldschool

12. gradschool

13. GUI DEMO

14. gradschool

15. gradschool

17. ldap
puppet roles
openvz containers
automated dns

18. How?

19. How to kill?

20. Openvz
Puppet
Host Database
daemontools
Openvz-web-panel

21. Do the basics right

22. Standardize your hardware
App class
Database class

23. Standardize your hardware
App class 32 Core 128G Ram
Database class 24 Core 64 G Ram

24. source of truth
Get a centralised host database

25. Must have
details of all hosts that exist
can store any type of info related to the host
ability to tag hosts
a simple remote API

28. data stored in key value pairs
all hosts have an entry
hosts can be tagged

29. tags can have propeties
3nd hosts based on tags
source of truth

30. provide a simple API
code around it

32. Kloud (fk-vz-maker)
decides which physical machine to create a VM
smart rules
knows what machines are on which
rack/switch
e.g
not more than two webservers on the same machine
not more than one LB on the same switch

34. host comes up
runs 3rst boot task: <ipkartify
connects to puppet

35. puppet server
runs a poll script on hostdb
creates new nodes
adds hosts to roles
create roles

38. dns/nagios/munin/statsd/blah
runs a poll script on hostdb
does task based on the keys it's intrested in

42. Silverline
Anyone can create three small hosts
Can be used for anything
User gets sudo
No support from ops
Anything happens: Destroy and Recreate

44. one more thing

45. HTTP API
usage based
on demand hosts
based on puppet roles

46. credits
Homescreen: AK/DK
akdk.bandcamp.com
Chainsaw girl: kooky love
www.threadless.com/submission/190051/THE_RED
open-vz-web-panel
code.google.com/p/ovz-web-panel/

47. with lots of love from
HostDB
Abhishek Kona
Anuj Mittal
Krishnanarayanan V R
Kloud
Aadil Seshadri
Burzin Engineer
Kurian Cheeramelil
Pankaj Kaushal

48. happy hacking