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Puppet master to
Puppet Server
or, How I learned to Stop
Worrying and Love the JVM
Kevin Corcoran
@KevinOfCorc
why?
▪ difficult to change
▪ difficult to understand
▪ still really valuable
▪ performance, scale
▫ MRI + GIL
▪ Passenger
▫ lac...
JVM ...
CHALLENGES
▪ puppet apply
▫ a first-class citizen
▪ JVM on master only
▪ no parallel implementations
▪ continue to use Ruby
It has to “just work”™.
It has to be fast.
(trademark pending)
▪ lifecycle
▪ state
management
▪ configuration
▪ logging
▪ packaging
▪ code
modularity,
reuse
WHAT’S A TRAPPERKEEPER?
▪ open-source Clojure application
framework
▪ “Service”
▪ Service API vs. implementation
▪ foundat...
▪ Yes, people are actually using
it.
▪ Yes, in production.
▪ latest version: 1.0.3
▪ part of PE 3.7.x
▪ “it works like a c...
LIES, DAMNED LIES, AND BENCHMARKS
▪ simulated HTTP traffic
via Gatling
▪ Puppet 3.7.0
▪ ~1000 resources
▪ master host:
▫ C...
LIES, DAMNED LIES, AND BENCHMARKS
▪ ~2x faster @
1000 nodes
▪ ~3x faster @
2000 nodes
▪ performance
barely affected
by 2x ...
Puppet <3 JRuby
DEVELOPERS! DEVELOPERS! DEVELOPERS!
COMMUNITY INVOLVEMENT
▪ Don’t fear the reader!
▪ There’s still plenty of Ruby to
be written.
▪ User feedback is invaluable...
Kevin Corcoran
@KevinOfCorc
kevin.corcoran@puppetlabs.com
on github:
puppetlabs/puppet-server
puppetlabs/trapperkeeeper
qu...
ConfigMgmtCamp 2015: Puppet Master to Puppet Server
ConfigMgmtCamp 2015: Puppet Master to Puppet Server
ConfigMgmtCamp 2015: Puppet Master to Puppet Server
ConfigMgmtCamp 2015: Puppet Master to Puppet Server
ConfigMgmtCamp 2015: Puppet Master to Puppet Server
ConfigMgmtCamp 2015: Puppet Master to Puppet Server
ConfigMgmtCamp 2015: Puppet Master to Puppet Server
ConfigMgmtCamp 2015: Puppet Master to Puppet Server
ConfigMgmtCamp 2015: Puppet Master to Puppet Server
ConfigMgmtCamp 2015: Puppet Master to Puppet Server
ConfigMgmtCamp 2015: Puppet Master to Puppet Server
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ConfigMgmtCamp 2015: Puppet Master to Puppet Server

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Kevin Corcoran, Puppet Labs

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ConfigMgmtCamp 2015: Puppet Master to Puppet Server

  1. 1. Puppet master to Puppet Server or, How I learned to Stop Worrying and Love the JVM Kevin Corcoran @KevinOfCorc
  2. 2. why?
  3. 3. ▪ difficult to change ▪ difficult to understand ▪ still really valuable ▪ performance, scale ▫ MRI + GIL ▪ Passenger ▫ lack of coordination between processes WE’VE ALL GOT PROBLEMS
  4. 4. JVM ...
  5. 5. CHALLENGES ▪ puppet apply ▫ a first-class citizen ▪ JVM on master only ▪ no parallel implementations ▪ continue to use Ruby
  6. 6. It has to “just work”™. It has to be fast. (trademark pending)
  7. 7. ▪ lifecycle ▪ state management ▪ configuration ▪ logging ▪ packaging ▪ code modularity, reuse
  8. 8. WHAT’S A TRAPPERKEEPER? ▪ open-source Clojure application framework ▪ “Service” ▪ Service API vs. implementation ▪ foundation for server-side apps ▫ PuppetDB ▫ Puppet Server ▫ Classifier / Node Manager ▫ RBAC
  9. 9. ▪ Yes, people are actually using it. ▪ Yes, in production. ▪ latest version: 1.0.3 ▪ part of PE 3.7.x ▪ “it works like a champ” - Trevor Vaughan STATUS
  10. 10. LIES, DAMNED LIES, AND BENCHMARKS ▪ simulated HTTP traffic via Gatling ▪ Puppet 3.7.0 ▪ ~1000 resources ▪ master host: ▫ CentOS 6 ▫ 4-core Xeon 3.6GHz ▫ 8 GB RAM
  11. 11. LIES, DAMNED LIES, AND BENCHMARKS ▪ ~2x faster @ 1000 nodes ▪ ~3x faster @ 2000 nodes ▪ performance barely affected by 2x as many agents
  12. 12. Puppet <3 JRuby
  13. 13. DEVELOPERS! DEVELOPERS! DEVELOPERS!
  14. 14. COMMUNITY INVOLVEMENT ▪ Don’t fear the reader! ▪ There’s still plenty of Ruby to be written. ▪ User feedback is invaluable! ▪ Github: dev docs ▪ Jira: SERVER project ▪ Tomorrow: Contributor Summit
  15. 15. Kevin Corcoran @KevinOfCorc kevin.corcoran@puppetlabs.com on github: puppetlabs/puppet-server puppetlabs/trapperkeeeper questions?

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