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
}}