Support LodgeIt installation on EL7 derivatives

This commit aims to make this module work on EL7 derivatives.

It :

  * Creates a /etc/sysconfig/lodgeit-MYINSTANCE configuration file
  * Creates a systemd unit file to manage lodgeit instances
  * Install the proper packages for the platform

Change-Id: Ifdc874e5f4c66c336d8e3dc1c731ca28d6415a46
Depends-On: I82241038d687316f91f18209fe8323c12422e2f8
Depends-On: If58c09095a530fcb54e2a42948183aabf6805e41

files/lodgeit.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=The %i LodgeIt Application
+After=network.target basic.target
+
+[Service]
+EnvironmentFile=-/etc/sysconfig/lodgeit-%i
+ExecStart=/bin/python /srv/lodgeit/%i/manage.py runserver -h ${LISTEN} -p ${PORT}
+ExecStop=/bin/kill -WINCH ${MAINPID}
+
+[Install]
+WantedBy=multi-user.target

manifests/init.pp

@@ -1,29 +1,27 @@
 # == Class: lodgeit
 #
 class lodgeit {
-  $packages = [ 'python-imaging',
-                'python-jinja2',
-                'python-pybabel',
-                'python-werkzeug',
-                'python-simplejson',
-                'python-pygments']
+
+  include ::lodgeit::params
 
   include ::httpd
-
   include ::pip
-  httpd_mod { 'proxy':
-    ensure => present,
+
+  # The httpd module supports only Debian/Ubuntu (requires a2enmod)
+  # On EL7 derivative both of those modules are part of the httpd package
+  # Hence there is no need for extra action
+  if $::osfamily == 'Debian' {
+    httpd_mod { ['proxy', 'proxy_http'] :
+      ensure => present,
+    }
   }
-  httpd_mod { 'proxy_http':
+
+  package { $::lodgeit::params::system_packages:
     ensure => present,
   }
 
-  package { $packages:
-    ensure => present,
-  }
-
-  if ! defined(Package['python-mysqldb']) {
-    package { 'python-mysqldb':
+  if ! defined(Package[$::lodgeit::params::mysql_python_package]) {
+    package { $::lodgeit::params::mysql_python_package:
       ensure   => present,
     }
   }
@@ -44,4 +42,18 @@ class lodgeit {
     source   => 'https://git.openstack.org/openstack-infra/lodgeit',
   }
 
+  if $::osfamily == 'RedHat' {
+
+    file { '/etc/systemd/system/lodgeit@.service':
+      ensure => present,
+      owner  => 'root',
+      group  => 'root',
+      mode   => '0644',
+      source => 'puppet:///modules/lodgeit/lodgeit.service',
+    } ~>
+    exec { '/bin/systemctl daemon-reload' : }
+
+  }
+
+
 }

manifests/params.pp

@@ -0,0 +1,27 @@
+# === Class : lodgeit::params
+class lodgeit::params {
+
+  $common_packages = ['python-jinja2',
+                      'python-babel',
+                      'python-werkzeug',
+                      'python-simplejson',
+                      'python-pygments']
+
+  case $::osfamily {
+    'RedHat' : {
+      $system_packages = concat($common_packages, 'python-pillow')
+      $mysql_python_package = 'MySQL-python'
+      $lodgeit_service_provider = undef
+
+    }
+    'Debian' : {
+      $system_packages = concat($common_packages, 'python-imaging')
+      $mysql_python_package = 'python-mysqldb'
+      $lodgeit_service_provider = 'upstart'
+    }
+    default : {
+      fail("LodgeIt: The Operating System ${::osfamily} is not supported")
+    }
+  }
+
+}

manifests/site.pp

@@ -12,21 +12,38 @@ define lodgeit::site(
 ) {
 
   include ::httpd
+  include ::lodgeit::params
 
   ::httpd::vhost::proxy { $vhost_name:
     port            => 80,
-    dest            => "http://localhost:${port}",
+    dest            => "http://127.0.0.1:${port}",
     require         => [File["/srv/lodgeit/${name}"], File["/srv/www/${name}"]],
     proxyexclusions => ['/robots.txt'],
     docroot         => "/srv/www/${name}/"
   }
 
-  file { "/etc/init/${name}-paste.conf":
-    ensure  => present,
-    content => template('lodgeit/upstart.erb'),
-    replace => true,
-    require => Class['httpd'],
-    notify  => Service["${name}-paste"],
+  if $::osfamily == 'RedHat' {
+
+    Exec['/bin/systemctl daemon-reload'] -> Service["lodgeit@${name}"]
+
+    $service_name = "lodgeit@${name}"
+
+    file { "/etc/sysconfig/lodgeit-${name}":
+      ensure  => present,
+      content => "PORT=${port}\nLISTEN=127.0.0.1",
+      notify  => Service[$service_name],
+    }
+
+  } else {
+
+    $service_name = "${name}-paste"
+
+    file { "/etc/init/${name}-paste.conf":
+      ensure  => present,
+      content => template('lodgeit/upstart.erb'),
+      replace => true,
+      notify  => Service[$service_name],
+    }
   }
 
   file { "/srv/lodgeit/${name}":
@@ -47,7 +64,7 @@ define lodgeit::site(
     mode    => '0755',
     replace => true,
     content => template('lodgeit/manage.py.erb'),
-    notify  => Service["${name}-paste"],
+    notify  => Service[$service_name],
   }
 
   file { "/srv/lodgeit/${name}/lodgeit/views/layout.html":
@@ -81,9 +98,10 @@ define lodgeit::site(
     database_password => $db_password,
   }
 
-  service { "${name}-paste":
+  service { $service_name:
     ensure   => running,
-    provider => upstart,
+    provider => $::lodgeit::params::service_provider,
     require  => Class['httpd'],
   }
+
 }