4.2.0 policy-handler - periodic reconfigure

- reconfigure == periodically retrieve the policy-handler config
  from consul-kv and compare to previous config and subconfigs.
  If changed, reconfigure the subunits
- selectively change one or any settings for the following
  = catch_up timer interval
  = reconfigure timer interval
  = deployment-handler url and params (thread-safe)
  = policy-engine url and params (thread-safe)
  = web-socket url to policy-engine (through a callback)
- each subunit has its own Settings that keep track of changes
- try-catch and metrics around discovery - consul API
- hidden the secrets from logs
- froze the web-socket version to 0.49.0 because 0.50.0
  and 0.51.0 are broken - looking around for stable alternatives
- fixed-adapted the callbacks passed to the web-socket lib
  that changed its API in 0.49.0 and later
- log the stack on the exception occurring in the web-socket lib
- unit test refactoring

Change-Id: Id53bad59660a197f59d9aeb7c05ab761d1060cd0
Signed-off-by: Alex Shatov <alexs@att.com>
Issue-ID: DCAEGEN2-470

1 files changed, 6 insertions, 6 deletions

diff --git a/policyhandler/__main__.py b/policyhandler/__main__.py
index 04ca657..63dc5da 100644
--- a/policyhandler/__main__.py
+++ b/policyhandler/__main__.py
@@ -35,20 +35,20 @@ from policyhandler.web_server import PolicyWeb
 
 def run_policy_handler():
     """main run function for policy-handler"""
-    Config.load_from_file()
-    Config.discover()
+    Config.init_config()
 
     logger = logging.getLogger("policy_handler")
     sys.stdout = LogWriter(logger.info)
     sys.stderr = LogWriter(logger.error)
 
     logger.info("========== run_policy_handler ========== %s", __package__)
-    Audit.init(Config.get_system_name(), Config.LOGGER_CONFIG_FILE_PATH)
-
-    logger.info("starting policy_handler with config:")
-    logger.info(Audit.log_json_dumps(Config.settings))
+    Audit.init(Config.system_name, Config.LOGGER_CONFIG_FILE_PATH)
 
     audit = Audit(req_message="start policy handler")
+
+    Config.discover(audit)
+    logger.info("starting policy_handler with config: %s", Config.discovered_config)
+
     PolicyReceiver.run(audit)
     PolicyWeb.run_forever(audit)