Adds recover_origin task to Fabric

ajlanghorn · ajlanghorn · commit 99dbfe4e1315 · 2015-06-05T10:32:52.000+01:00
Whilst we can fail the site to mirrors easily using Fabric, we can't restore as easily - at least, it's not a super-quick Fabric script. This makes it a nice quick fix. The logic is as follows: - Re-enable Puppet on the affected class - Run Puppet, with some degree of verbosity for confidence - This should restore the www.gov.uk Nginx vhost - This should restart Nginx because the configuration has changed - Prints a success message Changes the fail_to_mirror success message to point to using this task in future to recover back to origin from the mirrors.
diff --git a/incident.py b/incident.py
@@ -10,3 +10,11 @@ def fail_to_mirror():
     nginx.disable_vhost("www.gov.uk")
     nginx.force_restart()
     print("Disabled Puppet and www.gov.uk vhost, remember to re-enable and re-run puppet to restore previous state")
+
+@task
+@roles('class-cache')
+def recover_origin():
+    """Recovers GOV.UK to serve from origin after incident.fail_to_mirror has been invoked"""
+    puppet.enable()
+    puppet.agent("--test")
+    print("Puppet has been re-enabled, has run and the site should now be serving from origin as normal.")
