Expose prosody metrics to the web portal

This requires mod_measure_process loaded and a recent version
of mod_http_admin_api to expose the metrics to the web portal in
a reduced and specialized form.

ansible/files/prosody.cfg.lua

@@ -109,6 +109,9 @@ modules_enabled = {
 		"http_oauth2";
 		"http_admin_api";
 		"rest";
+
+	-- Monitoring & maintenance
+		"measure_process";
 }
 
 registration_watchers = {} -- Disable by default
@@ -159,6 +162,7 @@ authentication = "internal_hashed"
 authorization = "internal"
 storage = "internal"
 statistics = "internal"
+statistics_interval = 60
 
 certificates = "certs"
 

ansible/snikket.yml

@@ -9,7 +9,7 @@
       package: "prosody-trunk"
       build: "1436"
     prosody_modules:
-      revision: "8e58a1b78336"
+      revision: "cade5dac1003"
   tasks:
     - import_tasks: tasks/prosody.yml
     - import_tasks: tasks/supervisor.yml

ansible/tasks/prosody.yml

@@ -116,6 +116,7 @@
     - mod_muc_defaults
     - mod_muc_local_only
     - mod_http_host_status_check
+    - mod_measure_process
 
 - name: Enable wanted modules (snikket-modules)
   file: