Add PKISubsystem.get_subsystem_index()

The PKISubsystem.get_subsystem_index() has been added to get
the subsystem index in CS.cfg. The code that configures the
LDAPProfileSubsystem has been updated to use this method.

base/server/python/pki/server/deployment/scriptlets/subsystem_layout.py

@@ -331,7 +331,8 @@ def spawn(self, deployer):
                 subsystem.config['preop.cert.signing.profile'] = 'caInstallCACert'
 
             if config.str2bool(deployer.mdict['pki_profiles_in_ldap']):
-                subsystem.config['subsystem.1.class'] = \
+                index = subsystem.get_subsystem_index('profile')
+                subsystem.config['subsystem.%d.class' % index] = \
                     'com.netscape.cmscore.profile.LDAPProfileSubsystem'
 
         # configure OCSP

base/server/python/pki/server/subsystem.py

@@ -238,6 +238,30 @@ def remove(self, force=False):
         logger.info('Removing %s', self.base_dir)
         pki.util.rmtree(self.base_dir, force=force)
 
+    def get_subsystem_index(self, subsystem_id):
+        '''
+        Get index of subsystem in CS.cfg.
+        '''
+
+        # find subsystem.<index>.id params
+        pattern = re.compile(r'^subsystem\.(.*)\.id$')
+
+        for key, value in self.config.items():
+
+            m = pattern.match(key)
+            if not m:
+                continue
+
+            value = self.config[key]
+            if value != subsystem_id:
+                continue
+
+            # param value matches subsystem ID -> return index
+            index = m.group(1)
+            return int(index)
+
+        return None
+
     def find_system_certs(self):
 
         cert_ids = self.config['%s.cert.list' % self.name].split(',')