1. Expanded Introduction
to Puppet
for DevOps Days
2011-08-28
Bangalore, India
Garrett Honeycutt
Professional Services Consultant
garrett@puppetlabs.com
http://linkedin.com/in/garretthoneycutt

2. The one-off myth
Your systems are not beautiful
snowflakes
photo from http://beesknees67.deviantart.com/

3. The one-off myth
• Only temporary

4. The one-off myth
• Only temporary
• Replicas for pre-production environments

5. The one-off myth
• Only temporary
• Replicas for pre-production environments
• Disaster recovery

6. Why?

7. Why?
• reduce entropy

8. Why?
• reduce entropy
• disaster recovery

9. Why?
• reduce entropy
• disaster recovery
• change management

10. Why?
• reduce entropy
• disaster recovery
• change management
• infrastructure as code

11. Puppet Open Source Ecosystem
Puppet Distribution
Bundled with major OS
!
3,000 person mailing list
2,000 messages a month Puppet Community
300 people at all times in IRC Active participation
!
(#puppet on freenode.net)
100+ people 100+ modules
Puppet Contributors
contributing to contributed to
Framework
documentation Puppet Module
enhancements
and code
Forge
!

12. Operating System Support
Linux
Unix
Other
Red Hat
Solaris
Fedora
OS X
CentOS
Windows
AIX
Ubuntu
(2011)
HP-UX
Debian
SuSE
OpenBSD

13. Puppet Enterprise
What it is:
• Puppet and related components packaged and
integrated in one install:
• Puppet
• Puppet Master
• Dashboard
• Facter
• Ruby
• Apache
• Passenger, etc.

14. Puppet Enterprise
• Fully QA’d stack of Puppet and dependencies
• Simplified installation
• Ease of maintenance
• Pre-configured for scalability and performance
• Predictable enhancement delivery
• Enhanced enterprise class Support

15. Puppet Enterprise
What you can expect in the future:
• Pre-loaded set of commonly used modules
• Direct integration with public module-forge
• Support for additional platforms
• Integration with MCollective

16. Puppet is Pervasive
Web Entertainment Technology
Financial
Defense

17. How Puppet Works
1 Define: !"#$%&'(()#*+%,)-./0/#"1)%
% ./23'/3)%45'%,)+"32%/%30/($%56%
0)./#"52+$"(+%7)#8))2%0)+5'0-)+%8"#$"2%
0)'+/7.)%95,'.)+:%;$)+)%95,'.)+%,)6"2)%
45'0%"260/+#0'-#'0)%"2%"#+%,)+"0),%+#/#):
JB
B D@
HI
%E
CB
B@
ED
%AG
G>
B%@
A ; B D @;
%4 Report: &'(()#%>/+$75/0,%0)(50#+% 2 Simulate:%!"#$%#$"+%0)+5'0-)%
% #0/-?%0)./#"52+$"(+%7)#8))2% % 30/($<%&'(()#%"+%'2"=')%"2%"#+%
-59(52)2#+%/2,%/..%-$/23)+<%/..58"23% /7"."#4%#5%+"9'./#)%,)(.549)2#+<%)2/7."23%
45'%#5%?))(%'(%8"#$%+)-'0"#4%/2,% 45'%#5%#)+#%-$/23)+%8"#$5'#%,"+0'(#"52%
-59(."/2-)%9/2,/#)+:%@2,%8"#$%#$)% #5%45'0%"260/+#0'-#'0):
5()2%@&A%45'%-/2%"2#)30/#)%&'(()#%8"#$%
#$"0,%(/0#4%952"#50"23%#55.+:
EFDDBG;
%3 Enforce:%&'(()#%-59(/0)+%45'0%
C;@;B % +4+#)9%#5%#$)%,)+"0),%+#/#)%/+%45'%
,)6"2)%"#<%/2,%/'#59/#"-/..4%)2650-)+%"#%
>BCADB>
C;@;B #5%#$)%,)+"0),%+#/#)%)2+'0"23%45'0%+4+#)9%
"+%"2%-59(."/2-):

18. Use Puppet to create composable configurations
Modules and manage the enterprise infrastructure
1 Define Your Resources in Modules.
! "#$%!&'(()$*!+,'!-).#/)!+,'0!1,-'2)3!4+!/,-)!
9GHGAG7D "DA!7DEFDE G&&!7DEFDE 7D?MEJH = 52633#.#56$#,/3*!3'5%!63!")4!7)08)0!,0!96$6463)*!622,:#/;!
+,'!$,!-).#/)!0)26$#,/3%#(3!4)$:))/!0)3,'05)3!6/-!
5,/.#;'0)!$%,'36/-3!,.!3)08)03!6$!,/5)<!
Via Custom Assign resource relationships automatically.!
Puppet Dashboard External Source
(CMDB, LDAP, etc.)
!
2
=,'!56/!$%)/!633#;/!6/-!-)(2,+!5,/.#;'06$#,/3!
8#6!&'(()$!963%4,60-*!,0!:#$%!+,'0!,:/!5'3$,1#>)-!
?@9A!$,,23<
"DA!7DEFDE7 9GHGAG7D!7DEFDE7 G&&IJ?GHJKL!7DEFDE7
LK9D LK9D LK9D
3 Reusable, composable configurations. !
! "#$%!&'(()$!+,'!56/!0)B'3)!1,-'2)3!650,33!1'2$#(2)!
/,-)3*!#/!:%6$)8)0!5,14#/6$#,/!+,'!/))-*!0)-'5#/;!
0)()$#$#8)!$63C3!6/-!)2#1#/6$#/;!)00,0B(0,/)!350#($3<!
LK9D LK9D LK9D Multi Node

19. Puppet Assigns and Maintains
a Node’s Desired Role

20. Managing Configuration Drift

21. How Puppet Manages Data Flow
for Individual Nodes
Node
1 Facts
!"#$%&'#$(#%'($
%&)*+,-.#'$'+/+$
+0&1/$-/(#,2$/&$/"#$
3144#/$5+(/#)6
SSL secure 2 Catalog
3144#/$1(#($/"#$7+8/($/&
encryption 8&*4-,#$+$9+/+,&:$/"+/
on all data (4#8-2-#($"&;$/"#$%&'#
transport ("&1,'$0#$8&%2-:1)#'6
Report 3
!"#$%&'#$
)#4&)/($0+8=$
/&$3144#/$
-%'-8+/-%:$/"#$
8&%2-:1)+/-&%$-($
8&*4,#/#>$;"-8"$
-($?-(-0,#$-%$/"#$ Puppet
3144#/$@+("0&+)'6 Master 4 Report Collector
A3144#/$&)$B)'$4+)/<$/&&,C
Report
8+%$+,(&$(#%'$'+/+$
/&$/"-)'$4+)/<$/&&,(6

22. Facts
Automatically
Maintained Asset
Inventory

23. domain => local
facterversion => 1.5.8
fqdn => sliver.local
hardwaremodel => i386
hostname => sliver
interfaces => lo0,gif0,stf0,en0,en1,fw0,vmnet1,vboxnet0
ipaddress => 192.168.174.1
ipaddress_lo0 => 127.0.0.1
ipaddress_vmnet1 => 192.168.174.1
kernel => Darwin
kernelmajversion => 10.6
kernelrelease => 10.6.0
macosx_productname => Mac OS X
macosx_productversion => 10.6.6
netmask => 255.255.255.0
netmask_lo0 => 255.0.0.0
netmask_vmnet1 => 255.255.255.0
network_lo0 => 127.0.0.0
network_vmnet1 => 192.168.174.0
operatingsystem => Darwin
operatingsystemrelease => 10.6.0
path => /opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/
usr/X11/bin:/Users/gh/bin:/Users/gh/.gem/ruby/1.8/bin/
ps => ps auxwww
puppetversion => 2.6.4
rubysitedir => /opt/local/lib/ruby/site_ruby/1.8
timezone => PST
uptime => 1 day
rubyversion => 1.8.7
sp_bus_speed => 1.07 GHz

24. Custom Facts

25. How Puppet Manages Data Flow
for Individual Nodes
Node
1 Facts
!"#$%&'#$(#%'($
%&)*+,-.#'$'+/+$
+0&1/$-/(#,2$/&$/"#$
3144#/$5+(/#)6
SSL secure 2 Catalog
3144#/$1(#($/"#$7+8/($/&
encryption 8&*4-,#$+$9+/+,&:$/"+/
on all data (4#8-2-#($"&;$/"#$%&'#
transport ("&1,'$0#$8&%2-:1)#'6
Report 3
!"#$%&'#$
)#4&)/($0+8=$
/&$3144#/$
-%'-8+/-%:$/"#$
8&%2-:1)+/-&%$-($
8&*4,#/#>$;"-8"$
-($?-(-0,#$-%$/"#$ Puppet
3144#/$@+("0&+)'6 Master 4 Report Collector
A3144#/$&)$B)'$4+)/<$/&&,C
Report
8+%$+,(&$(#%'$'+/+$
/&$/"-)'$4+)/<$/&&,(6

26. Catalog
• Automatically
maintained
comprehensive resource list
• Easilyvalidated against
compliance requirements prior
to client configuration

27. How Puppet Manages Data Flow
for Individual Nodes
Node
1 Facts
!"#$%&'#$(#%'($
%&)*+,-.#'$'+/+$
+0&1/$-/(#,2$/&$/"#$
3144#/$5+(/#)6
SSL secure 2 Catalog
3144#/$1(#($/"#$7+8/($/&
encryption 8&*4-,#$+$9+/+,&:$/"+/
on all data (4#8-2-#($"&;$/"#$%&'#
transport ("&1,'$0#$8&%2-:1)#'6
Report 3
!"#$%&'#$
)#4&)/($0+8=$
/&$3144#/$
-%'-8+/-%:$/"#$
8&%2-:1)+/-&%$-($
8&*4,#/#>$;"-8"$
-($?-(-0,#$-%$/"#$ Puppet
3144#/$@+("0&+)'6 Master 4 Report Collector
A3144#/$&)$B)'$4+)/<$/&&,C
Report
8+%$+,(&$(#%'$'+/+$
/&$/"-)'$4+)/<$/&&,(6

28. Report
• Comprehensive report of every
change ever made, correlated to every
resource being managed
• Easily
validated against compliance
requirements after reach run

29. Report
•http
•log
•store
•tagmail

30. Report

31. What not How

32. What not how

33. Example Resource Types
• cron
• exec
• file
• group
• host
• zfs
• mount
• package
• service
• sshkey

34. Package-File-Service

35. File Serving

36. Templates

37. Templates - Advanced

38. Syntax Checking

39. Storeconfigs
Ability to pass data between nodes, via
a database acting as a proxy

40. Storeconfigs
Ability to pass data between nodes, via
a database acting as a proxy
• MySQL
• SQLite3
• PostgreSQL
• Oracle

41. Storeconfigs

42. External Node
Classifier
•Puppet Dashboard
•Your own CMDB

43. External Node
Classifier
A script that takes $certname as
an argument and outputs YAML to
STDOUT

44. External Node
Classifier

45. External Node
Classifier

46. Expanded Introduction
to Puppet
for DevOps Days
2011-08-28
Bangalore, India
Garrett Honeycutt
Professional Services Consultant
garrett@puppetlabs.com
http://linkedin.com/in/garretthoneycutt