diff --git a/src/opserver/flow.py b/src/opserver/flow.py
index dc948d526cf..71c5946ca43 100755
--- a/src/opserver/flow.py
+++ b/src/opserver/flow.py
@@ -11,6 +11,7 @@
 #
 
 import sys
+import ConfigParser
 import argparse
 import json
 import datetime
@@ -70,6 +71,7 @@ def __init__(self):
     def run(self):
         if self.parse_args() != 0:
             return
+
         result = self.query()
         self.display(result)
 
@@ -98,10 +100,40 @@ def parse_args(self):
             'start_time': 'now-10m',
             'end_time': 'now',
             'direction' : 'ingress',
+            'admin_user': 'admin',
+            'admin_password': 'contrail123',
+            'conf_file': '/etc/contrail/contrail-keystone-auth.conf',
         }
 
+        conf_parser = argparse.ArgumentParser(add_help=False)
+        conf_parser.add_argument("--admin-user", help="Name of admin user")
+        conf_parser.add_argument("--admin-password", help="Password of admin user")
+        conf_parser.add_argument("--conf-file", help="Configuration file")
+        args, remaining_argv = conf_parser.parse_known_args();
+
+        configfile = defaults['conf_file']
+        if args.conf_file:
+            configfile = args.conf_file
+
+        config = ConfigParser.SafeConfigParser()
+        config.read(configfile)
+        if 'KEYSTONE' in config.sections():
+            if args.admin_user == None:
+                args.admin_user = config.get('KEYSTONE', 'admin_user')
+            if args.admin_password == None:
+                args.admin_password = config.get('KEYSTONE','admin_password')
+
+        if args.admin_user == None:
+            args.admin_user = defaults['admin_user']
+        if args.admin_password == None:
+            args.admin_password = defaults['admin_password']
+
         parser = argparse.ArgumentParser(
-            formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+                  # Inherit options from config_parser
+                  parents=[conf_parser],
+                  # print script description with -h/--help
+                  description=__doc__,
+                  formatter_class=argparse.ArgumentDefaultsHelpFormatter)
         parser.set_defaults(**defaults)
         parser.add_argument("--analytics-api-ip",
             help="IP address of Analytics API Server")
@@ -139,12 +171,10 @@ def parse_args(self):
             help="Show vmi uuid information")
         parser.add_argument(
             "--verbose", action="store_true", help="Show internal information")        
-        parser.add_argument(
-            "--admin-user", help="Name of admin user", default="admin")
-        parser.add_argument(
-            "--admin-password", help="Password of admin user",
-            default="contrail123")
-        self._args = parser.parse_args()
+        self._args = parser.parse_args(remaining_argv)
+
+        self._args.admin_user = args.admin_user
+        self._args.admin_password = args.admin_password
 
         try:
             self._start_time, self._end_time = \
diff --git a/src/opserver/log.py b/src/opserver/log.py
index ce8bcd20bf3..2e95127b2dd 100755
--- a/src/opserver/log.py
+++ b/src/opserver/log.py
@@ -11,6 +11,7 @@
 #
 
 import sys
+import ConfigParser
 import argparse
 import json
 import datetime
@@ -45,6 +46,7 @@ def run(self):
         try:
             if self.parse_args() != 0:
                 return
+
             if self._args.tail:
                 start_time = UTCTimestampUsec() - 10*pow(10,6)
                 while True:
@@ -112,10 +114,40 @@ def parse_args(self):
         defaults = {
             'analytics_api_ip': '127.0.0.1',
             'analytics_api_port': '8181',
+            'admin_user': 'admin',
+            'admin_password': 'contrail123',
+            'conf_file': '/etc/contrail/contrail-keystone-auth.conf',
         }
 
+        conf_parser = argparse.ArgumentParser(add_help=False)
+        conf_parser.add_argument("--admin-user", help="Name of admin user")
+        conf_parser.add_argument("--admin-password", help="Password of admin user")
+        conf_parser.add_argument("--conf-file", help="Configuration file")
+        args, remaining_argv = conf_parser.parse_known_args();
+
+        configfile = defaults['conf_file']
+        if args.conf_file:
+            configfile = args.conf_file
+
+        config = ConfigParser.SafeConfigParser()
+        config.read(configfile)
+        if 'KEYSTONE' in config.sections():
+            if args.admin_user == None:
+                args.admin_user = config.get('KEYSTONE', 'admin_user')
+            if args.admin_password == None:
+                args.admin_password = config.get('KEYSTONE','admin_password')
+
+        if args.admin_user == None:
+            args.admin_user = defaults['admin_user']
+        if args.admin_password == None:
+            args.admin_password = defaults['admin_password']
+
         parser = argparse.ArgumentParser(
-            formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+                  # Inherit options from config_parser
+                  parents=[conf_parser],
+                  # print script description with -h/--help
+                  description=__doc__,
+                  formatter_class=argparse.ArgumentDefaultsHelpFormatter)
         parser.set_defaults(**defaults)
         parser.add_argument("--analytics-api-ip", help="IP address of Analytics API Server")
         parser.add_argument("--analytics-api-port", help="Port of Analytics API Server")
@@ -164,10 +196,9 @@ def parse_args(self):
         parser.add_argument("--output-file", "-o", help="redirect output to file")
         parser.add_argument("--json", help="Dump output as json", action="store_true")
         parser.add_argument("--all", action="store_true", help=argparse.SUPPRESS)
-        parser.add_argument("--admin-user", help="Name of admin user", default="admin")
-        parser.add_argument("--admin-password", help="Password of admin user",
-            default="contrail123")
-        self._args = parser.parse_args()
+        self._args = parser.parse_args(remaining_argv)
+        self._args.admin_user = args.admin_user
+        self._args.admin_password = args.admin_password
         return 0
     # end parse_args
 
diff --git a/src/opserver/stats.py b/src/opserver/stats.py
index 35ec980a877..d21f90c5c4f 100755
--- a/src/opserver/stats.py
+++ b/src/opserver/stats.py
@@ -11,6 +11,7 @@
 #
 
 import sys
+import ConfigParser
 import argparse
 import json
 import datetime
@@ -76,11 +77,41 @@ def parse_args(self):
             'end_time': 'now',
             'select' : [],
             'where' : ['Source=*'],
-            'sort': []
+            'sort': [],
+            'admin_user': 'admin',
+            'admin_password': 'contrail123',
+            'conf_file': '/etc/contrail/contrail-keystone-auth.conf',
         }
 
+        conf_parser = argparse.ArgumentParser(add_help=False)
+        conf_parser.add_argument("--admin-user", help="Name of admin user")
+        conf_parser.add_argument("--admin-password", help="Password of admin user")
+        conf_parser.add_argument("--conf-file", help="Configuration file")
+        args, remaining_argv = conf_parser.parse_known_args();
+
+        configfile = defaults['conf_file']
+        if args.conf_file:
+            configfile = args.conf_file
+
+        config = ConfigParser.SafeConfigParser()
+        config.read(configfile)
+        if 'KEYSTONE' in config.sections():
+            if args.admin_user == None:
+                args.admin_user = config.get('KEYSTONE', 'admin_user')
+            if args.admin_password == None:
+                args.admin_password = config.get('KEYSTONE','admin_password')
+
+        if args.admin_user == None:
+            args.admin_user = defaults['admin_user']
+        if args.admin_password == None:
+            args.admin_password = defaults['admin_password']
+
         parser = argparse.ArgumentParser(
-            formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+                  # Inherit options from config_parser
+                  parents=[conf_parser],
+                  # print script description with -h/--help
+                  description=__doc__,
+                  formatter_class=argparse.ArgumentDefaultsHelpFormatter)
         parser.set_defaults(**defaults)
         parser.add_argument("--analytics-api-ip", help="IP address of Analytics API Server")
         parser.add_argument("--analytics-api-port", help="Port of Analytcis API Server")
@@ -99,12 +130,10 @@ def parse_args(self):
             "--where", help="List of Where Terms to be ANDed", nargs='+')
         parser.add_argument(
             "--sort", help="List of Sort Terms", nargs='+')
-        parser.add_argument(
-            "--admin-user", help="Name of admin user", default="admin")
-        parser.add_argument(
-            "--admin-password", help="Password of admin user",
-            default="contrail123")
-        self._args = parser.parse_args()
+        self._args = parser.parse_args(remaining_argv)
+
+        self._args.admin_user = args.admin_user
+        self._args.admin_password = args.admin_password
 
         if self._args.table is None and self._args.dtable is None:
             return -1