Upstart: Add new upstart client tool

Due to the nature of the way Upstart handles service specification,
turning 'servicename' off and on can be done via a configuration file
located at /etc/init/<servicename>.conf. Enabling a disabled service can
be done by making sure that the Upstart configuration file and the
service are bundled together.

Signed-off-by: Sol Jerome <solj@ices.utexas.edu>

1 files changed, 63 insertions, 0 deletions

diff --git a/src/lib/Client/Tools/Upstart.py b/src/lib/Client/Tools/Upstart.py
new file mode 100644
index 000000000..a3da5b514
--- /dev/null
+++ b/src/lib/Client/Tools/Upstart.py
@@ -0,0 +1,63 @@
+'''Upstart support for Bcfg2'''
+__revision__ = '$Revision$'
+
+import glob
+import re
+
+import Bcfg2.Client.Tools
+import Bcfg2.Client.XML
+
+
+class Upstart(Bcfg2.Client.Tools.SvcTool):
+    '''Upstart service support for Bcfg2'''
+    name = 'Upstart'
+    __execs__ = ['/lib/init/upstart-job',
+                 '/sbin/initctl',
+                 '/usr/sbin/service']
+    __handles__ = [('Service', 'upstart')]
+    __req__ = {'Service': ['name', 'status']}
+    svcre = re.compile("/etc/init/(?P<name>.*).conf")
+
+    def get_svc_command(self, service, action):
+        return "/usr/sbin/service %s %s" % (service.get('name'), action)
+
+    def VerifyService(self, entry, _):
+        '''Verify Service status for entry
+
+           Verifying whether or not the service is enabled can be done
+           at the file level with upstart using the contents of
+           /etc/init/servicename.conf. All we need to do is make sure
+           the service is running when it should be.
+        '''
+        output = self.cmd.run('/usr/sbin/service %s status' % \
+                              entry.get('name'))[1][0]
+        if output.split(' ')[1].split('/')[1].startswith('running'):
+            status = True
+            if entry.get('status') == 'off':
+                entry.set('current_status', 'on')
+        else:
+            status = False
+            if entry.get('status') == 'on':
+                entry.set('current_status', 'off')
+
+        return status
+
+    def InstallService(self, entry):
+        '''Install Service for entry'''
+        if entry.get('mode', 'default') == 'supervised':
+            pstatus, pout = self.cmd.run('/usr/sbin/service %s status' % \
+                                         entry.get('name'))
+            if pstatus:
+                self.cmd.run('/usr/sbin/service %s start' % (entry.get('name')))
+        return True
+
+    def FindExtra(self):
+        '''Locate extra Upstart services'''
+        specified = [entry.get('name') for entry in self.getSupportedEntries()]
+        extra = []
+        for name in [self.svcre.match(fname).group('name') for fname in
+                     glob.glob("/etc/init/*.conf") \
+                     if self.svcre.match(fname).group('name') not in specified]:
+            extra.append(name)
+        return [Bcfg2.Client.XML.Element('Service', type='upstart', name=name) \
+                for name in extra]