Issue 2864 - Introduce class elasticsearch

modules/elasticsearch/manifests/plugin.pp

+# == Type: elasticsearch::plugin
+#
+# Manage Elasticsearch plugin installations.
+#
+# === Parameters:
+#
+# [*ensure*]
+#   Either 'present'/'installed' or 'absent'/'purged'.
+#
+# [*replace*]
+#   Whether to replace an existing plugin during installation.
+#
+# [*url*]
+#   Where to download a plugin from during installation, if not publicly
+#   available at one of the default URLs.
+#
+# [*version*]
+#   An explicit version to install.
+#
+# === Examples:
+#
+#   elasticsearch::plugin {'license':
+#     url => $elasticsearch_license_plugin_url,
+#   }
+#
+#   elasticsearch::plugin {'shield':
+#     require => Elasticsearch::Plugin['license'],
+#   }
+#
+define elasticsearch::plugin (
+  $ensure = 'present',
+  $replace = false,
+  $url = undef,
+  $version = 'latest',
+) {
+
+  $plugin = "${elasticsearch::directory}/bin/plugin"
+
+  Exec {
+    cwd => $elasticsearch::directory,
+    logoutput => true,
+    notify => Service['elasticsearch'],
+    require => Package['elasticsearch'],
+  }
+
+  @exec {"elasticsearch::plugin#install-$name":
+    command => shellquote($url ? {
+      undef => [$plugin, '--install', "elasticsearch/$name/$version"],
+      default => [$plugin, '--install', $name, '--url', $url, '--verbose'],
+    }),
+    creates => "${elasticsearch::directory}/plugins/$name",
+  }
+
+  @exec {"elasticsearch::plugin#remove-$name":
+    command => shellquote($plugin, '--remove', $name),
+    onlyif => shellquote('/usr/bin/test', '-e', "plugins/$name"),
+  }
+
+  if $ensure =~ /^(absent|purged)$/ {
+    realize(Exec["elasticsearch::plugin#remove-$name"])
+  }
+  elsif $replace == true {
+    Exec <|title == "elasticsearch::plugin#remove-$name"|> ->
+    Exec <|title == "elasticsearch::plugin#install-$name"|>
+  }
+  else {
+    realize(Exec["elasticsearch::plugin#install-$name"])
+  }
+}