Add facility to configure log levels in promenade

Add 'INFO' as default log level.Create logging
section in /etc/promenade/promenade.conf. Set log_level
key in the logging section of promenade.conf to override
the default log level.The allowed log_level values are
as follows:
	1. 'DEBUG'
        2. 'INFO'
        3. 'WARNING'
        4. 'ERROR'
        5. 'CRITICAL'

Add log_level under logging section in promenade charts values.yaml.

Change-Id: I9bbd36e04bbac96779d3f198b0484176e0045a4e

.zuul.yaml

@@ -83,7 +83,7 @@
     description: |
       Executes unit tests under Python 3.5
     run: tools/zuul/playbooks/make-tests.yaml
-    timeout: 300
+    timeout: 1500
     nodeset: airship-promenade-single-node
     files:
       - ^.*\.py$

charts/promenade/values.yaml

@@ -14,6 +14,11 @@
 
 conf:
   promenade:
+    logging:
+      # Which messages to log.
+      # Valid values include 'DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'.
+      # Default value is 'DEBUG'.
+      log_level: 'DEBUG'
     keystone_authtoken:
       delay_auth_decision: true
       auth_type: password

doc/requirements.txt

@@ -1,3 +1,4 @@
 sphinx>=1.6.2
 sphinx_rtd_theme==0.2.4
 falcon==1.2.0
+oslo.config==6.6.2

promenade/logging.py

@@ -1,6 +1,7 @@
 import copy
 import logging
 import logging.config
+from oslo_config import cfg
 
 __all__ = ['getLogger', 'setup']
 
@@ -45,7 +46,7 @@ DEFAULT_CONFIG = {
         },
         'promenade': {
             'handlers': ['default'],
-            'level': 'INFO',
+            'level': 'DEBUG',
             'propagate': False,
         },
     },
@@ -79,8 +80,12 @@ class Adapter(logging.LoggerAdapter):
 
 def setup(*, verbose):
     log_config = copy.deepcopy(DEFAULT_CONFIG)
+
     if verbose:
         log_config['loggers']['promenade']['level'] = 'DEBUG'
+    else:
+        log_level = cfg.CONF.logging.log_level
+        log_config['loggers']['promenade']['level'] = log_level
 
     logging.config.dictConfig(log_config)
 

promenade/options.py

@@ -7,6 +7,16 @@ OPTIONS = []
 def setup(disable_keystone=False):
     cfg.CONF([], project='promenade')
     cfg.CONF.register_opts(OPTIONS)
+    log_group = cfg.OptGroup(name='logging', title='Logging options')
+    cfg.CONF.register_group(log_group)
+    logging_options = [
+        cfg.StrOpt(
+            'log_level',
+            choices=['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'],
+            default='DEBUG',
+            help='Global log level for PROMENADE')
+    ]
+    cfg.CONF.register_opts(logging_options, group=log_group)
     if disable_keystone is False:
         cfg.CONF.register_opts(
             keystoneauth1.loading.get_auth_plugin_conf_options('password'),

promenade/promenade.py

@@ -21,7 +21,7 @@ def start_promenade(disable=False):
     options.setup(disable_keystone=disable)
 
     # Setup root logger
-    logging.setup(verbose=True)
+    logging.setup(verbose=False)
 
     # Setup policy
     policy.policy_engine = policy.PromenadePolicy()