First draft for Aegir Rules blog post

content/blog/aegir_rules.md

+---
+categories:
+- blog
+date: 2017-12-14
+tags: [ "Aegir", "Open source", "Drupal Planet", "DevOps" ]
+author: Herman van Rink
+username: helmo
+title: "Ægir Rules"
+---
+
+Aegir faithfully runs a lot of tasks for us, but sometimes one can fail for various reasons.
+
+That could be as simple a filled up disk or a remote Git server that's unavailable.
+![screenshot of a task error](/img/blog/task_error.png)
+
+When your logged in you quickly see what's going wrong.
+
+But with more and more automation there are day's that your not watching the Aegir dashboard of your server.
+
+It could run a Git pull task because someone committed new code for the site you're hosting, or a Lets encrypt certificate is being renewed.
+In these cases it's nice to get a notification of this. Drupal Rules module to the rescue...
+
+The contributed [aegir_rules module](https://www.drupal.org/project/aegir_rules) integrates rules events about the things Aegir does. You can install it like any other Drupal module in your hostmaster site, and enable it together with the rules_admin module.
+
+In the [README](http://cgit.drupalcode.org/aegir_rules/tree/README.txt) file we have documented an example rule that can easily be imported.
+
+The snippit below will sent a mail to the hostmaster admin whenever a task fails. This can be imported on the /admin/config/workflow/rules/reaction/import page. (it needs the rules_admin sub module enabled)
+
+```code
+
+
+{ "rules_mail_about_failed_task" : {
+    "LABEL" : "Mail admin about failed task",
+    "PLUGIN" : "reaction rule",
+    "OWNER" : "rules",
+    "TAGS" : [ "hosting task" ],
+    "REQUIRES" : [ "aegir_rules", "rules" ],
+    "ON" : { "post_hosting_default_execute" : [] },
+    "IF" : [
+      { "aegir_rules_condition_task_status_failure" : { "task" : [ "task" ] } }
+    ],
+    "DO" : [
+      { "mail" : {
+          "to" : "[site:mail]",
+          "subject" : "Task failed: [task:title]",
+          "message" : "I\u0027m sorry to report that a task failed.\r\n\r\n[task:title]\r\n\r\n\r\nVisit this url for the task logs:\r\n[task:url]",
+          "language" : [ "" ]
+        }
+      }
+    ]
+  }
+}
+```
+
+
+You can add more conditions or actions as with any Rule.
+
+![screenshot of the Rules admin page](/img/blog/rules_config.png)
+
+If you have made a nice rule, please share it in the [issue queue](https://www.drupal.org/project/issues/aegir_rules?categories=All) so that others can benefit.
+
+Who's the first to light up a Chrismas tree after a successful task?