Add APT packages

- Adding apt/* and debian manifests to deal with APT sources.
  So far hardcoding Sensuapp ones as from Sensu wiki

- Add init.pp to be compliant with Puppet module guidelines

manifests/apt/key.pp

@@ -0,0 +1,45 @@
+#
+# Add/remove an apt key
+#
+# == Parameters:
+#
+# $title::      The key id
+# $ensure::     "present" or "absent"
+# $url::        The url of the key
+# $server::     The server from which download the key
+#               url or server are required on ensure is "present"
+#
+define sensu::apt::key($ensure, $url = '', $server = '') {
+
+    case $ensure {
+
+        'present': {
+
+            if $url != '' {
+                exec { "apt-key_present_$title":
+                    command     => "/usr/bin/wget -O- -q '${url}' | /usr/bin/apt-key add -",
+                    unless      => "/usr/bin/apt-key list | /bin/grep -c '$title'",
+                }
+            } else {
+                exec { "apt-key_present_$title":
+                    command     => "/usr/bin/apt-key adv --keyserver '${server}' --recv '${title}'",
+                    unless      => "/usr/bin/apt-key list | /bin/grep -c '$title'",
+                }
+            }
+
+        }
+
+        'absent': {
+
+            exec { "apt-key_absent_$title":
+                command     => "/usr/bin/apt-key del '$title'",
+                onlyif      => "/usr/bin/apt-key list | /bin/grep -c '$title'",
+            }
+
+        }
+
+        default: {
+            fail "Invalid 'ensure' value '$ensure' for apt::key"
+        }
+    }
+}

manifests/apt/source.pp

@@ -0,0 +1,43 @@
+
+#
+# Add/remove a source
+#
+# == Parameters:
+#
+# $title::      The source name
+# $ensure::     "present" or "absent"
+# $content::    The content to add to source.list
+#
+define sensu::apt::source($ensure, $content = '') {
+
+    $filepath = "/etc/apt/sources.list.d/${title}.list"
+
+    case $ensure {
+
+        'present': {
+
+            file { "add_apt_source_$filepath":
+                path        => $filepath,
+                content     => $content
+            }
+
+            exec { "update_apt_source_$filepath":
+                command     => '/usr/bin/apt-get update',
+                subscribe   => File["add_apt_source_$filepath"],
+                refreshonly => true
+            }
+
+        }
+
+        'absent': {
+
+            file { $filepath:
+                ensure      => absent
+            }
+        }
+
+        default: {
+            fail "Invalid 'ensure' value '$ensure' for apt::source"
+        }
+    }
+}

manifests/debian.pp

@@ -0,0 +1,15 @@
+
+class sensu::debian {
+
+  sensu::apt::key { 'sensuapp':
+    ensure  => 'present',
+    url     => 'http://repos.sensuapp.org/apt/pubkey.gpg',
+  }
+
+  sensu::apt::source { 'sensuapp':
+    ensure  => 'present',
+    content => 'deb http://repos.sensuapp.org/apt sensu main',
+    require => Sensu::Apt::Key['sensuapp'],
+  }
+
+}

manifests/init.pp

@@ -0,0 +1,11 @@
+
+class sensu {
+
+  case $::operatingsystem {
+    # add apt sources
+    'Debian': { include 'sensu::debian' }
+    'Ubuntu': { include 'sensu::debian' }
+    default : {}
+  }
+
+}