logging: set default level to warning; add flag for debug mode

dspawn/__init__.py

@@ -6,8 +6,4 @@ container creations, support various network configurations, uses apt-cacher-ng
 if available, and more (note: for zone network setup, please systemctl enable
 systemd-networkd)"""
 
-import logging
-logging.basicConfig(level=logging.DEBUG)
-logger = logging.getLogger(__name__)
-
 __version__ = 0.6

dspawn/cli.py

@@ -3,9 +3,9 @@ import os
 import sys
 import argparse
 import dspawn
-from dspawn import logger
+import logging
 from dspawn.container import Machine
-
+from dspawn.container import logger
 
 machinectl_actions = ['list', 'list-images', 'start', 'stop', 'show',
                       'shell', 'remove', 'login', 'enable', 'disable',
@@ -37,11 +37,17 @@ def main():
     parser.add_argument('-p', '--privateoff',
                         action='store_true',
                         help='turn off PrivateUsers mapping'),
+    parser.add_argument('-v', '--verbose',
+                        action='store_true',
+                        help='display debug messages'),
 
     args = parser.parse_args()
 
+    if args.verbose:
+        logger.setLevel(logging.DEBUG)
+
     if args.address and args.mode == 'private':
-        logger.info('Notice: auto-selecting zone network mode, required with static address')
+        logger.info('auto-selecting zone network mode, required with static address')
         args.mode = 'zone'
 
     if args.action == 'create' or args.action == 'config':

dspawn/container.py

@@ -2,9 +2,12 @@
 import os
 import glob
 import apt
-from dspawn import logger
 from dspawn.netconf import MachineConfig
 
+import logging
+logging.basicConfig(level=logging.WARNING)
+logger = logging.getLogger(__name__)
+
 
 defaults = {
     'arch': os.uname()[4],