"Puppet Is Most of Your Documentation" presented at Puppet Camp Tokyo 2014 by David Mytton, Server Density.

1. 36 point
日本語（にほんご）
48 point white on black

2. Puppet is most of your
documentation!
David Mytton
Puppet Camp Tokyo - May 2014
blog.serverdensity.jp

3. David Mytton

4. ウェブサイト及びサーバー監
視の プレミアム製品

5. Server Density Architecture
● ~100 servers - Ubuntu 12.04
● 50:50 virtual/dedicated
● Softlayer > Google Cloud
● Nginx, Python, MongoDB
● 30TB/m incoming data

6. How we use Puppet
● Infrastructure
● Config
● Failover
● Deploys

7. How we use Puppet

8. Puppet is the source of truth
It knows all our servers, where they are,
their health status, how they are configured
and what is installed.

9. How we use Puppet
● Infrastructure
● Config
● Failover
● Deploys

10. Infrastructure

11. Infrastructure
gce_instance { 'totoro-1':
ensure => present,
machine_type => 'n1-standard-1',
zone => 'asia-east1-a',
network => 'default',
image => 'backports-debian-7-wheezy',
}

12. Infrastructure
● gce_instance
● gce_firewall
● gce_httphealthcheck
● gce_targetpool
● ...

13. Infrastructure

14. Infrastructure
● Why?
● Defined in code
● All under version control
● Changes applied consistently
● Easy for others to understand

15. Config
● Packages
● Versions (pinning)
● Config files
● Tweaks, fixes, patches

16. Config
Versions (pinning)

17. Config
Tweaks, fixes, patches

18. Config
● Why?
● Defined in code
● All under version control
● Changes applied consistently
● Easy for others to understand

19. Failover
● Nginx load balancer pools
● IPs stored in Puppet
● Console rake API

20. Failover
● Why?
● Defined in PuppetDB
● GET/SET via API or UI
● Changes applied consistently
● Easy for others to understand

21. Deploys

22. Deploys

23. Deploys

24. Deploys
/opt/puppet/bin/mco puppetd runonce -I <host>

25. How we use Puppet
● Infrastructure
● Config
● Failover
● Deploys
}The Docs

26. ご興味がありましたら、新たに開設した
日本語のブログもご覧下さい。
● GoogleコンピュートエンジンでのMongoDBー -ヒ
ントとベンチマーク評価
● 当社の時系列グラフを支える技術 –
一日に20億、月に30TBに及ぶドキュメント
blog.serverdensity.jp

27. 日本語のツイッターのアカウントもフォローして
下さい。
@serverdensityjp

28. どもありがとうございます
＠davidmytton
david@serverdensity.com
blog.serverdensity.jp