Add support for service running status and restoring at startup.

[software/pymin.git] / pymin / services / vrrp / __init__.py

diff --git a/pymin/services/vrrp/__init__.py b/pymin/services/vrrp/__init__.py
index 8f5a0037ab065a09e6028edf7217ffb58017ddd7..c8563a699b6923f091ea50be67532ddf94121d26 100644 (file)
--- a/pymin/services/vrrp/__init__.py
+++ b/pymin/services/vrrp/__init__.py
@@ -1,20 +1,26 @@
 # vim: set encoding=utf-8 et sw=4 sts=4 :
 
+import os
 from os import path
+from signal import SIGTERM
 from subprocess import Popen, PIPE
 
 from pymin.seqtools import Sequence
 from pymin.dispatcher import Handler, handler, HandlerError
-from pymin.services.util import Restorable, TransactionalHandler, ParametersHandler, call
+from pymin.services.util import Restorable, TransactionalHandler, \
+                                ReloadHandler, RestartHandler, \
+                                ServiceHandler, ParametersHandler, call
 
-__ALL__ = ('VrrpHandler')
+__ALL__ = ('VrrpHandler',)
 
 pid_filename = 'vrrp.pid'
 
-class VrrpHandler(Restorable, ParametersHandler, TransactionalHandler):
+class VrrpHandler(Restorable, ParametersHandler, ReloadHandler, RestartHandler,
+                        ServiceHandler, TransactionalHandler):
+
     handler_help = u"Manage VRRP service"
 
-    _persistent_attrs = 'params'
+    _persistent_attrs = ['params']
 
     _restorable_defaults = dict(
                             params = dict( ipaddress='192.168.0.1',
@@ -24,33 +30,26 @@ class VrrpHandler(Restorable, ParametersHandler, TransactionalHandler):
                                     ),
                             )
 
-    def __init__(self, pickle_dir='.', config_dir='.', pid_dir='.'):
-        self._persistent_dir = pickle_dir
-        self._pid_dir = pid_dir
-        self._restore()
-
-    @handler('Starts the service')
-    def start(self):
+    def _service_start(self):
         if self.params['prio'] != '':
-            #call(('vrrp','-i',self.params[dev],'-v',self.params[id],'-p',self.params[prio],self.params[ipaddress]))
-            print ('vrrp','-i',self.params['dev'],'-v',self.params['id'],'-p',self.params['prio'],self.params['ipaddress'])
+            call(('vrrp', '-i', self.params['dev'], '-v', self.params['id'],
+                    '-p', self.params['prio'], self.params['ipaddress']))
         else:
-            #call(('vrrp','-i',self.params[dev],'-v',self.params[id],self.params[ipaddress]))
-            print ('vrrp','-i',self.params['dev'],'-v',self.params['id'],self.params['ipaddress'])
-
-    @handler('Stop the service')
-    def stop(self):
-        try :
-            f = file(path.join(self._pid_dir, pid_filename ), 'r')
-            #call(('kill','<',f.read()))
-            print(('kill','<',f.read()))
-        except IOError:
+            call(('vrrp', '-i', self.params['dev'], '-v', self.params['id'], \
+                    self.params['ipaddress']))
+
+    def _service_stop(self):
+        try:
+            pid = file(path.join(self._pid_dir, pid_filename )).read().strip()
+            os.kill(int(pid), SIGTERM)
+        except (IOError, OSError):
+            # TODO log
             pass
 
-    @handler('Reloads the service')
-    def reload(self):
-        self.stop()
-        self.start()
+    def __init__(self, pickle_dir='.', config_dir='.', pid_dir='.'):
+        self._persistent_dir = pickle_dir
+        self._pid_dir = pid_dir
+        ServiceHandler.__init__(self)
 
 
 if __name__ == '__main__':