Moved process -> service. Fixed changelog. Fixed comments. Added changes to the readme

Author: bishopbm2

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## Development
 
-- Added the ability to scale out workflowengine, scheduler, rulesengine, and notifier processes
+- Added the ability to scale out workflowengine, scheduler, rulesengine, and notifier services
   so that they run in an active-active configuration
   Contributed by @bishopbm1
 - Added the Redis configuration for a Coordination backend

README.md

@@ -157,6 +157,7 @@ classes for use and configuration.
 * `st2::profile::nodejs` - st2 configured NodeJS installation
 * `st2::profile::python` - Python installed and configured for st2
 * `st2::profile::rabbitmq` - st2 configured RabbitMQ installation
+* `st2::profile::redis` - st2 configured Redis installation
 * `st2::proflle::server` - st2 server components
 * `st2::profile::web` - st2 web components
 * `st2::profile::chatops` - st2 chatops components
@@ -318,6 +319,33 @@ Configuration via Hiera:
     RESPOND_TO_DM: true
 ```
 
+#### Scaling out services
+
+This module supports scaling out workflowengine, scheduler, rulesengine, and notifier services
+per the [ST2 Documentation](https://docs.stackstorm.com/reference/ha.html).
+
+This would be something that you might consider doing if you have alot of rules running or if you
+have alot of workflows running in parrallel and/or you have alot of nested workflows and have a server
+that can be higher on CPU and Memory to allow more processes to run at the same time.
+
+Configuration all services:
+```ruby
+class { 'st2':
+  python_version     => '3.6',
+  workflowengine_num => 4,
+  scheduler_num      => 2,
+  rulesengine_num    => 1,
+  notifier_num       => 1,
+}
+```
+
+Or configure individual:
+```ruby
+class { 'st2::workflowengine':
+  workflowengine_num => 4,
+}
+```
+
 ### Tasks
 
 This module provides several tasks for interacting with StackStorm. These tasks
@@ -484,6 +512,8 @@ please submit a [Pull Request](https://github.com/StackStorm/puppet-st2/pulls).
 * StackStorm <[email protected]>
 * James Fryman
 * Patrick Hoolboom
+* Bradley Bishop
+  * GitHub - [@nmaludy](https://github.com/bishopbm1)
 
 ### Help
 

manifests/notifier.pp

@@ -36,9 +36,9 @@
     tag     => 'st2::config',
   }
 
-  st2::process { 'st2notifier':
-    process_name     => 'st2notifier',
-    process_num      => $notifier_num,
-    process_services => $notifier_services,
+  st2::service { 'st2notifier':
+    service_name      => 'st2notifier',
+    service_num       => $notifier_num,
+    existing_services => $notifier_services,
   }
 }

manifests/process.pp

@@ -36,9 +36,9 @@
     tag     => 'st2::config',
   }
 
-  st2::process { 'st2rulesengine':
-    process_name     => 'st2rulesengine',
-    process_num      => $rulesengine_num,
-    process_services => $rulesengine_services,
+  st2::service { 'st2rulesengine':
+    service_name      => 'st2rulesengine',
+    service_num       => $rulesengine_num,
+    existing_services => $rulesengine_services,
   }
 }

manifests/rulesengine.pp

@@ -54,10 +54,10 @@
       tag     => 'st2::config',
     }
 
-    st2::process { 'st2scheduler':
-      process_name     => 'st2scheduler',
-      process_num      => $scheduler_num,
-      process_services => $scheduler_services,
+    st2::service { 'st2scheduler':
+      service_name      => 'st2scheduler',
+      service_num       => $scheduler_num,
+      existing_services => $scheduler_services,
     }
   }
 }

manifests/scheduler.pp

@@ -0,0 +1,62 @@
+# @summary Creates additional service for components that can be scaled out
+#
+# @param service_name
+#    The service name that we are attempting to scale
+# @param service_num
+#    The number of servicees that should be scaled out
+# @param existing_services
+#    The service to make sure are enabled and running. All new service
+#    are automatically added to this.
+#
+# @example build st2workflowengine service
+#  st2::service { 'st2workflowengine':
+#    service_name => 'st2workflowengine-rsa',
+#    service_num => '2',
+#    existing_services => ['st2workflowengine'],
+#  }
+#
+define st2::service(
+  $service_name,
+  $service_num,
+  $existing_services,
+) {
+  if ($service_num > 1) {
+    $additional_service = range('2', $service_num).reduce([]) |$memo, $number| {
+      $new_service_name = "${service_name}${number}"
+      case $facts['os']['family'] {
+        'RedHat': {
+          $file_path = '/usr/lib/systemd/system/'
+        }
+        'Debian': {
+          $file_path = '/lib/systemd/system/'
+        }
+        default: {
+          fail("Unsupported managed repository for osfamily: ${facts['os']['family']}, operatingsystem: ${facts['os']['name']}")
+        }
+      }
+
+      systemd::unit_file { "${new_service_name}.service":
+        path   => $file_path,
+        source => "${file_path}${service_name}.service",
+        owner  => 'root',
+        group  => 'root',
+        mode   => '0644',
+      }
+
+      $memo + [$new_service_name]
+    }
+
+    $_existing_services = $existing_services + $additional_service
+
+  } else {
+    $_existing_services = $existing_services
+  }
+
+  ########################################
+  ## Service
+  service { $_existing_services:
+    ensure => 'running',
+    enable => true,
+    tag    => 'st2::service',
+  }
+}

manifests/service.pp

@@ -39,10 +39,10 @@
       tag     => 'st2::config',
     }
 
-    st2::process { 'st2workflowengine':
-      process_name     => 'st2workflowengine',
-      process_num      => $workflowengine_num,
-      process_services => $workflowengine_services,
+    st2::service { 'st2workflowengine':
+      service_name      => 'st2workflowengine',
+      service_num       => $workflowengine_num,
+      existing_services => $workflowengine_services,
     }
   }
 }

manifests/workflowengine.pp

@@ -34,7 +34,7 @@
     },
     {
       "name": "puppet/python",
-      "version_requirement": ">= 5.0.0"
+      "version_requirement": ">= 5.0.0 < 7.0.0"
     },
     {
       "name": "puppetlabs/inifile",
@@ -70,11 +70,11 @@
     },
     {
       "name": "puppet/redis",
-      "version_requirement": ">= 7.0.0"
+      "version_requirement": ">= 7.0.0 < 8.0.0"
     },
     {
       "name": "camptocamp/systemd",
-      "version_requirement": ">= 3.0.0"
+      "version_requirement": ">= 3.0.0 < 4.0.0"
     }
   ],
   "operatingsystem_support": [