Agile Deployments with Puppet

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Agile Deployments with Puppet Gary Larizza Puppet Labs @glarizza Saturday, October 22, 2011

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Agile Deployments with Puppet Gary Larizza Puppet Labs @glarizza http://bit.ly/garydevops Saturday, October 22, 2011

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DevOps • Culture not tools? • Release Management? • http://slidesha.re/itweapon • http://bit.ly/toolsmatter • http://slidesha.re/devopstools Saturday, October 22, 2011

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Example of ‘poor deployment’ Saturday, October 22, 2011

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Saturday, October 22, 2011

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Developer Operations Saturday, October 22, 2011

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Developer Operations Saturday, October 22, 2011

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Developer Production Operations Saturday, October 22, 2011

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Developer Production Staging Operations Saturday, October 22, 2011

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Developer Production Staging Operations Saturday, October 22, 2011

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Developer Production Staging Operations Saturday, October 22, 2011

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Developer Production Staging Operations Saturday, October 22, 2011

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Developer Production Staging Build Time Operations Day(s) Saturday, October 22, 2011

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Developer Production Staging QA Build Time Operations Day(s) Saturday, October 22, 2011

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Developer Production Staging QA Build Time Operations Day(s) Saturday, October 22, 2011

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Developer Production Staging QA Build Time Operations Day(s) Saturday, October 22, 2011

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Developer Production Staging QA Build Time Operations Day(s) Week(s) Saturday, October 22, 2011

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Developer Production Staging QA Build Time Operations Day(s) Week(s) Saturday, October 22, 2011

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Developer Production Staging QA UK Build Time Operations Day(s) Week(s) Saturday, October 22, 2011

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Developer Production Staging QA UK Build Time Operations Day(s) Week(s) Saturday, October 22, 2011

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Developer Production Staging QA UK China Build Time Operations Day(s) Week(s) Saturday, October 22, 2011

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Developer Production Staging QA UK China Build Time Operations Day(s) Week(s) Saturday, October 22, 2011

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Developer Production Staging QA UK China Canada Build Time Operations Day(s) Week(s) Saturday, October 22, 2011

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Developer Production Staging QA UK China Canada Build Time Operations Day(s) Week(s) Saturday, October 22, 2011

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Developer Production Staging QA UK China Canada Build Time Operations Day(s) Week(s) ??? Saturday, October 22, 2011

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Rampination http://bit.ly/pconfkeynote Saturday, October 22, 2011

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Example of ‘Agile’ Saturday, October 22, 2011

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Saturday, October 22, 2011

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Developer Operations Saturday, October 22, 2011

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Developer Production Operations Saturday, October 22, 2011

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Developer Production Operations Conﬁguration Data Saturday, October 22, 2011

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Developer Production Operations Conﬁguration Data Saturday, October 22, 2011

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Developer Production Operations Conﬁguration Data Saturday, October 22, 2011

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Developer Production Operations Conﬁguration Data Saturday, October 22, 2011

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Developer Production Staging Operations Conﬁguration Data Saturday, October 22, 2011

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Developer Production Staging Build Time Operations 10 Minutes Conﬁguration Data Saturday, October 22, 2011

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Developer Production Staging Build Time Operations 10 Minutes Conﬁguration Data Saturday, October 22, 2011

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Developer Production Staging Build Time Operations 10 Minutes Conﬁguration Data Saturday, October 22, 2011

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Developer Production Staging QA Build Time Operations 10 Minutes 1-2 Hours Conﬁguration Data Saturday, October 22, 2011

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Developer Production Staging QA Build Time Operations 10 Minutes 1-2 Hours Conﬁguration Data Saturday, October 22, 2011

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Developer Production Staging QA Build Time Operations 10 Minutes 1-2 Hours Conﬁguration Data Saturday, October 22, 2011

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Developer Production Staging QA Build Time Operations 10 Minutes 1-2 Hours 3 Hours Conﬁguration Data Developer Reach Saturday, October 22, 2011

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Developer Production Staging QA Build Time Operations 10 Minutes 1-2 Hours 3 Hours Conﬁguration Data Developer Reach Saturday, October 22, 2011

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What can Ops learn from Dev? • Do developers re-write their code at every step? • Version control • Testing frameworks • Expose ‘settings’ through conﬁguration data Saturday, October 22, 2011

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Infrastructure as Code with Puppet • Deﬁne what needs to be done • Model your ideal state with simple resources • Conﬁgured State vs. Running State • Choose your level of commitment Saturday, October 22, 2011

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Resource Abstraction Layer Saturday, October 22, 2011

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Resource Abstraction Layer Saturday, October 22, 2011

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Resource Abstraction Layer Saturday, October 22, 2011

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Resource Abstraction Layer /usr/bin/yum -y install httpd Saturday, October 22, 2011

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Saturday, October 22, 2011

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Bare Machine Provisioning Base Install Conﬁgure Assigned Role Maintenance Puppet’s Task Saturday, October 22, 2011

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Puppet Resources service { 'httpd': ensure => running, enable => true, hasstatus => true, hasrestart => true, } Saturday, October 22, 2011

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Type Puppet Resources service { 'httpd': ensure => running, enable => true, hasstatus => true, hasrestart => true, } Saturday, October 22, 2011

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Type Title Puppet Resources service { 'httpd': ensure => running, enable => true, hasstatus => true, hasrestart => true, } Saturday, October 22, 2011

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Type Title Attributes Puppet Resources service { 'httpd': ensure => running, enable => true, hasstatus => true, hasrestart => true, } Saturday, October 22, 2011

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Facter • Describes aspects of your machine - “facts” • Facts written in Ruby • Nice library of existing facts • Custom facts are easy Saturday, October 22, 2011

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garys-mbp:$ facter domain => puppetlabs.lan facterversion => 1.5.8 fqdn => garys-mbp.puppetlabs.lan hardwaremodel => x86_64 hostname => garys-mbp kernel => Darwin macosx_buildversion => 10K549 macosx_productname => Mac OS X macosx_productversion => 10.6.8 macosx_productversion_major => 10.6 macosx_productversion_minor => 8 <...> Facter Saturday, October 22, 2011

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Facter.add("computername") do confine :kernel => :darwin setcode('scutil --get ComputerName'.chomp) end computername scutil --get ComputerName Custom Fact Saturday, October 22, 2011

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Facter.add("computername") do confine :kernel => :darwin setcode('scutil --get ComputerName'.chomp) end computername scutil --get ComputerName Custom Fact Saturday, October 22, 2011

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Facter.add("computername") do confine :kernel => :darwin setcode('scutil --get ComputerName'.chomp) end computername scutil --get ComputerName Fact name Custom Fact Saturday, October 22, 2011

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Facter.add("computername") do confine :kernel => :darwin setcode('scutil --get ComputerName'.chomp) end computername scutil --get ComputerName Command to Execute Fact name Custom Fact Saturday, October 22, 2011

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Custom Fact ENV.each do |key,val| Facter.add("env_#{key}") do setcode do val end end end Saturday, October 22, 2011

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Separate Data from Logic • Conﬁguration Data adapts to environment • Easy deployment - Puppet modules do not change • Eliminate SSH access for deployment Saturday, October 22, 2011

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Data Separation Examples Saturday, October 22, 2011

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Node Inheritance node common { $dnsserver = '8.8.8.8' $searchdomain = 'puppetlabs.vm' } node devops inherits common { $dnsserver = '10.13.1.3' } node 'agent.puppetlabs.vm' inherits devops { file { '/etc/resolv.conf': content => "search ${searchdomain}\n nameserver ${dnsserver}\n", } } Saturday, October 22, 2011

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Data Class in Module class dns::params { $dnsserver = '8.8.8.8' $searchdomain = 'puppetlabs.vm' } class dns( $dnsserver = $dns::params::dnsserver, $searchdomain = $dns::params::searchdomain ) inherits dns::params { file { '/etc/resolv.conf': content => "search ${searchdomain}\n nameserver ${dnsserver}\n", } } Saturday, October 22, 2011

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Extlookup dnsserver, 8.8.8.8 searchdomain, puppetlabs.vm dnsserver, 10.13.1.2 common.csv devops.csv $extlookup_datadir = "/etc/puppetlabs/puppet/data" $extlookup_precedence = [$clientcert, $environment, $architecture, 'common'] node 'agent.puppetlabs.vm' { include dns } class dns { $dnsserver = extlookup('dnsserver') $searchdomain = extlookup('searchdomain') } Saturday, October 22, 2011

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External Node Classiﬁer --- classes: - dns parameters: searchdomain : ‘puppetlabs.vm’ dnsserver : ‘10.13.1.2’ Saturday, October 22, 2011

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Hiera • Hierarchal data lookup system • Structured data backend • YAML, JSON, and current Puppet state • http://bit.ly/hieradata Saturday, October 22, 2011

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Saturday, October 22, 2011

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Global Defaults Saturday, October 22, 2011

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Global Defaults Environment Saturday, October 22, 2011

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Global Defaults Environment Role Saturday, October 22, 2011

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Global Defaults Environment Role Saturday, October 22, 2011

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Global Defaults Environment Role Saturday, October 22, 2011

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Global Defaults Environment Role Resultant Data Conﬁguration Saturday, October 22, 2011

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Saturday, October 22, 2011

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Global Defaults Saturday, October 22, 2011

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Global Defaults --- ntpserver: time.puppetlabs.com puppetserver: puppet.puppetlabs.com environment: production Saturday, October 22, 2011

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Global Defaults --- ntpserver: time.puppetlabs.com puppetserver: puppet.puppetlabs.com environment: production Saturday, October 22, 2011

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Global Defaults Environment --- ntpserver: time.puppetlabs.com puppetserver: puppet.puppetlabs.com environment: production Saturday, October 22, 2011

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Global Defaults Environment --- stompserver: stomp-qa.puppetlabs.com puppetserver: puppet-qa.puppetlabs.com environment: qa --- ntpserver: time.puppetlabs.com puppetserver: puppet.puppetlabs.com environment: production Saturday, October 22, 2011

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Global Defaults Environment --- ntpserver: time.puppetlabs.com stompserver: stomp-qa.puppetlabs.com environment: qa puppetserver: puppet-qa.puppetlabs.com Saturday, October 22, 2011

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Global Defaults Environment Role --- ntpserver: time.puppetlabs.com stompserver: stomp-qa.puppetlabs.com environment: qa puppetserver: puppet-qa.puppetlabs.com Saturday, October 22, 2011

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Global Defaults Environment Role --- storeconﬁgs: true --- ntpserver: time.puppetlabs.com stompserver: stomp-qa.puppetlabs.com environment: qa puppetserver: puppet-qa.puppetlabs.com Saturday, October 22, 2011

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Global Defaults Environment Role --- ntpserver: time.puppetlabs.com stompserver: stomp-qa.puppetlabs.com environment: qa storeconﬁgs: true puppetserver: puppet-qa.puppetlabs.com Saturday, October 22, 2011

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DEMO TIME Saturday, October 22, 2011

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Devops Survey • http://bit.ly/devopssurvey Saturday, October 22, 2011

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Code is online https://github.com/glarizza/puppet-datademo Saturday, October 22, 2011

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Gary Larizza • Twitter: @glarizza • Email: [email protected] • Web: http://www.puppetlabs.com Saturday, October 22, 2011