2.4.0 dns based discovery of deployment-handler

- policy-handler uses dns based discovery of
   deployment-handler - driven by config
- new data structure for deploy_handler section of config
    --  changed from string "deployment_handler" in 2.3.1
         to structure in 2.4.0
    deploy_handler :
        # name of deployment-handler service
        #     used by policy-handler for logging
        target_entity : "deployment_handler"
        # url of the deployment-handler service
        # for policy-handler to direct the policy-updates to
        #   - expecting dns to resolve the name
        #      deployment_handler to ip address
        url : "http://deployment_handler:8188"

- logic is backwards compatible with 2.3.1 format
- removed import pip from audit
   -- import pip broken in pip 9.0.2 (2018-03-19)
   -- import pip conflicts with requests
   -- pip API is not officially supported
   -- see links for more
      https://github.com/pypa/pip/issues/5079
      https://github.com/pypa/pip/issues/5081

Change-Id: Ifcaba6cfd714f3099ab7a25fe979a3696a6460fc
Signed-off-by: Alex Shatov <alexs@att.com>
Issue-ID: DCAEGEN2-404

1 files changed, 5 insertions, 9 deletions

diff --git a/policyhandler/onap/audit.py b/policyhandler/onap/audit.py
index 4e8378c..109e3ff 100644
--- a/policyhandler/onap/audit.py
+++ b/policyhandler/onap/audit.py
@@ -25,16 +25,15 @@
  audit = Audit(request_id=None, headers=None, msg=None)
 """
 
+import copy
+import json
 import os
 import sys
-import json
-import uuid
 import time
-import copy
+import uuid
 from datetime import datetime
-from threading import Lock
 from enum import Enum
-from pip import utils as pip_utils
+from threading import Lock
 
 from .CommonLogger import CommonLogger
 from .health import Health
@@ -125,8 +124,6 @@ class Audit(object):
     _logger_audit = None
     _health = Health()
     _py_ver = sys.version.replace("\n", "")
-    _packages = sorted([pckg.project_name + "==" + pckg.version
-                        for pckg in pip_utils.get_installed_distributions()])
 
     @staticmethod
     def init(service_name, service_version, config_file_path):
@@ -154,8 +151,7 @@ class Audit(object):
             "started" : str(Audit._started),
             "now" : str(now),
             "uptime" : str(now - Audit._started),
-            "stats" : Audit._health.dump(),
-            "packages" : Audit._packages
+            "stats" : Audit._health.dump()
         }
 
     def __init__(self, request_id=None, req_message=None, aud_parent=None, **kwargs):