Pro Puppet Presentation.pdf

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1、ProPuppetSpencerKrumWilliamVanHevelingenAgendaAbstractingDatawithHieraArchitectingtheCodebaseIntegratingExternalToolsAbstractingDatawithHieraaplacetoputyourdatabackenddrivenfunctioncalltolookuponkeyshierarchythatisfacterawaredefaultandoverridesPublicdataincodeclass{'

2、jenkins::slave':jenkins_ssh_key=>'AAAAB3Nzbu84a....'}Publicdataincode#cat/etc/puppet/hieradata/common.yaml---jenkins_key:AAAAB3NzaC1yc2EAAAADA......#hiera-djenkins_keyDEBUG:HieraYAMLbackendstartingDEBUG:Lookingupjenkins_keyinYAMLbackendDEBUG:Lookingfordatasourcecommo

3、nDEBUG:Foundjenkins_keyincommonAAAAB3NzaC1yc2EAAAADAQAB...Publicdataincode$ssh_key=hiera('jenkins_key')class{'jenkins::slave':jenkins_ssh_key=>$ssh_key,}Secretsincodeclass{'mysql::server':root_password=>'hunter2',}Secretsincode#cat/etc/puppet/hieradata/common.yaml---

4、...mysql_root_password:hunter2...#hiera-dmysql_root_passwordDEBUG:HieraYAMLbackendstartingDEBUG:Lookingupmysql_root_passwordinYAMLbackendDEBUG:LookingfordatasourcecommonDEBUG:Foundmysql_root_passwordincommonhunter2Secretsincode$password=hiera('mysql_root_password')cl

5、ass{'mysql::server':root_password=>$password,}Conditionaldataincodeclassgraphite{if$::osfamily=='RedHat'{$pkgs=['git','python-django','g++','sqlite3',]...}}Hieraconfiguration#ln-s/etc/hiera.yaml/etc/puppet/hiera.yamlHieraconfiguration#cat/etc/puppet/hiera.yaml---:bac

6、kends:-yaml:yaml::datadir:/etc/puppet/hieradata:hierarchy:-"%{clientcert}/common"-"osfamily/%{osfamily}/common"-commonConditionaldataincodeclass{'graphite':if$::osfamily=='RedHat'{$pkgs=['git','python-django','g++','sqlite3',]...}}Hieradata#find/etc/puppet/hieradata.

7、./common.yaml./osfamily./osfamily/RedHat./osfamily/RedHat/common.yaml./osfamily/Debian./osfamily/Debian/common.yamlHieradata#catosfamily/Debian/common.yaml---graphite::pkgs:-graphite-python-django-virtualenvHieradata#catosfamily/RedHat/common.yaml---graphite::pkgs:-g

8、it-python-django-g++-sqlite3-sqlite3-devel-python26-virtualenvHieradata#hieragraphite::pkgsosfamily=RedHat["git","python-django","g