Enhancement Request: .conf parameter for AMP #1690

conf/glances.conf

@@ -572,8 +572,9 @@ countmax=20
 
 [amp_conntrack]
 # Use comma separated for multiple commands (no space around the comma)
+# If the regex key is not defined, the AMP will be executed every refresh second
+# and the process count will not be displayed (countmin and countmax will be ignore)
 enable=false
-regex=\/sbin\/init
 refresh=30
 one_line=false
 command=sysctl net.netfilter.nf_conntrack_count;sysctl net.netfilter.nf_conntrack_max

docs/aoa/amps.rst

@@ -49,6 +49,20 @@ less than countmin):
 
 .. image:: ../_static/amp-python-warning.png
 
+If the regex option is not defined, the AMP will be executed every refresh
+time and the process count will not be displayed (countmin and countmax will 
+be ignored).
+
+For example:
+
+.. code-block:: ini
+
+    [amp_conntrack]
+    enable=false
+    refresh=30
+    one_line=false
+    command=sysctl net.netfilter.nf_conntrack_count;sysctl net.netfilter.nf_conntrack_max
+
 User defined AMP
 ----------------
 

glances/amps/glances_amp.py

@@ -99,12 +99,11 @@ class GlancesAmp(object):
             logger.debug("AMP - {}: Can not find section {} in the configuration file".format(self.NAME, self.amp_name))
             return False
 
-        # enable, regex and refresh are mandatories
-        # if not configured then AMP is disabled
         if self.enable():
-            for k in ['regex', 'refresh']:
+            # Refresh option is mandatory
+            for k in ['refresh']:
                 if k not in self.configs:
-                    logger.warning("AMP - {}: Can not find configuration key {} in section {}".format(self.NAME, k, self.amp_name))
+                    logger.warning("AMP - {}: Can not find configuration key {} in section {} (the AMP will be disabled)".format(self.NAME, k, self.amp_name))
                     self.configs['enable'] = 'false'
         else:
             logger.debug("AMP - {} is disabled".format(self.NAME))

glances/amps_list.py

@@ -112,6 +112,14 @@ class AmpsList(object):
             if not v.enable():
                 # Do not update if the enable tag is set
                 continue
+            
+            if v.regex() is None:
+                # If there is no regex, execute anyway (see issue #1690)
+                v.set_count(0)
+                # Call the AMP update method
+                thread = threading.Thread(target=v.update_wrapper, args=[[]])
+                thread.start()
+                continue
 
             amps_list = self._build_amps_list(v, processlist)
 

glances/plugins/glances_amps.py

@@ -57,7 +57,9 @@ class Plugin(GlancesPlugin):
                               'timer': v.time_until_refresh(),
                               'count': v.count(),
                               'countmin': v.count_min(),
-                              'countmax': v.count_max()})
+                              'countmax': v.count_max(),
+                              'regex': v.regex() is not None},
+                              )
         else:
             # Not available in SNMP mode
             pass
@@ -103,7 +105,7 @@ class Plugin(GlancesPlugin):
             # Display AMP
             first_column = '{}'.format(m['name'])
             first_column_style = self.get_alert(m['count'], m['countmin'], m['countmax'])
-            second_column = '{}'.format(m['count'])
+            second_column = '{}'.format(m['count'] if m['regex'] else '')
             for l in m['result'].split('\n'):
                 # Display first column with the process name...
                 msg = '{:<16} '.format(first_column)