This document contains examples of using Puppet code to configure different types of infrastructure components including Apache, PHP, MySQL, firewalls, monitoring tools, and more. It shows how to define dependencies between components, use feature toggles, handle different operating systems, and compare versions to configure alternatives.

1. Feature Toggles for Ops
@attachmentgenie

2. include apacheinclude apache
apache::vhost {apache::vhost { 'vhost.example.com''vhost.example.com'::
port =>port => '80''80',,
docroot =>docroot => '/var/www/vhost''/var/www/vhost',,
}}
include ::phpinclude ::php
classclass {{ '::mysql::server''::mysql::server'::
root_password =>root_password => 'secret''secret',,
}}
classclass {{ '::mysql::server::account_security''::mysql::server::account_security': }: }
classclass {{ '::mysql::client''::mysql::client': }: }
mysql::db {mysql::db { 'mydb''mydb'::
user =>user => 'myuser''myuser',,
password =>password => 'topsecret''topsecret',,
host =>host => 'localhost''localhost',,
grant => [grant => ['SELECT''SELECT',, 'UPDATE''UPDATE']],,
}}
include ::firewallinclude ::firewall
firewall{firewall{'http''http'::
dport =>dport => '80''80',,
proto =>proto => 'tcp''tcp',,
action =>action => 'accept''accept',,
}}

3. Hard DependenciesHard Dependencies
classclass roles::webserver {roles::webserver {
include profiles::apacheinclude profiles::apache
include profiles::phpinclude profiles::php
include profiles::mysqlinclude profiles::mysql
include profiles::firewallinclude profiles::firewall
include profiles::icinga2include profiles::icinga2
include profiles::logstashinclude profiles::logstash
include profiles::collectdinclude profiles::collectd
include profiles::customerinclude profiles::customer
}}

4. BooleanBoolean
classclass profiles::website (profiles::website (
BooleanBoolean $apache$apache == falsefalse,,
BooleanBoolean $nginx$nginx == falsefalse,,
BooleanBoolean $traefik$traefik == falsefalse,,
){){
ifif $apache$apache {{
classclass {{ '::profiles::website::apache''::profiles::website::apache': }: }
}}
ifif $nginx$nginx {{
classclass {{ '::profiles::website::nginx''::profiles::website::nginx': }: }
}}
ifif $traefik$traefik {{
classclass {{ '::profiles::website::traefik''::profiles::website::traefik': }: }
}}
}}

5. Case SwitchCase Switch
casecase $::example::service_provider$::example::service_provider {{
'debian''debian',,'init''init',,'redhat''redhat': {: {
file {file { 'example service file''example service file'::
path =>path => "/etc/init.d/"/etc/init.d/${::example::service_name}${::example::service_name}"",,
content => template(content => template('example/example.init.erb''example/example.init.erb')),,
group =>group => $::example::group$::example::group,,
mode =>mode => '0755''0755',,
notify => Service[notify => Service['example''example']],,
owner =>owner => $::example::user$::example::user,,
}}
}}
'systemd''systemd': {: {
::systemd::unit_file {::systemd::unit_file { ""${::example::service_name}${::example::service_name}.service".service"::
content => template(content => template('example/example.service.erb''example/example.service.erb')),,
before => Service[before => Service['example''example']],,
}}
}}
defaultdefault: {: {
fail(fail("Service provider"Service provider ${::example::service_provider}${::example::service_provider} not supported"not supported"))
}}
}}

6. VersioncmpVersioncmp
ifif versioncmp(versioncmp($::operatingsystemrelease$::operatingsystemrelease,, '7.0.0''7.0.0') >) > 00 {{
include ::apache::mod::proxyinclude ::apache::mod::proxy
include ::apache::mod::proxy_fcgiinclude ::apache::mod::proxy_fcgi
}} elseelse {{
apache::fastcgi::server {apache::fastcgi::server { 'php''php': }: }
}}

7. classclass roles::webserver {roles::webserver {
include profiles::bootstrapinclude profiles::bootstrap
include profiles::databaseinclude profiles::database
include profiles::webserverinclude profiles::webserver
}}