puppet camp tokyo 2014: puppet is most of your documentation
DESCRIPTION
"Puppet Is Most of Your Documentation" presented at Puppet Camp Tokyo 2014 by David Mytton, Server Density.TRANSCRIPT
36 point日本語（にほんご）
48 point white on black
Puppet is most of your documentation!
David MyttonPuppet Camp Tokyo - May 2014
blog.serverdensity.jp
David Mytton
ウェブサイト及びサーバー監
視の プレミアム製品
Server Density Architecture
● ~100 servers - Ubuntu 12.04
● 50:50 virtual/dedicated
● Softlayer > Google Cloud
● Nginx, Python, MongoDB
● 30TB/m incoming data
How we use Puppet
● Infrastructure
● Config
● Failover
● Deploys
How we use Puppet
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.
How we use Puppet
● Infrastructure
● Config
● Failover
● Deploys
Infrastructure
Infrastructure
gce_instance { 'totoro-1':
ensure => present,
machine_type => 'n1-standard-1',
zone => 'asia-east1-a',
network => 'default',
image => 'backports-debian-7-wheezy',
}
Infrastructure
● gce_instance
● gce_firewall
● gce_httphealthcheck
● gce_targetpool
● ...
Infrastructure
Infrastructure
● Why?
● Defined in code
● All under version control
● Changes applied consistently
● Easy for others to understand
Config
● Packages
● Versions (pinning)
● Config files
● Tweaks, fixes, patches
Config
Versions (pinning)
Config
Tweaks, fixes, patches
Config
● Why?
● Defined in code
● All under version control
● Changes applied consistently
● Easy for others to understand
Failover
● Nginx load balancer pools
● IPs stored in Puppet
● Console rake API
Failover
● Why?
● Defined in PuppetDB
● GET/SET via API or UI
● Changes applied consistently
● Easy for others to understand
Deploys
Deploys
Deploys
Deploys
/opt/puppet/bin/mco puppetd runonce -I <host>
How we use Puppet
● Infrastructure
● Config
● Failover
● Deploys
} The Docs
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