Implements filebased config, config override through env vars, use of osm

[osm/MON.git] / osm_mon / cmd / mon_healthcheck.py

diff --git a/osm_mon/cmd/mon_healthcheck.py b/osm_mon/cmd/mon_healthcheck.py
index 412410b..cc6fd8f 100644 (file)
--- a/osm_mon/cmd/mon_healthcheck.py
+++ b/osm_mon/cmd/mon_healthcheck.py
@@ -19,24 +19,29 @@
 # For those usages not covered by the Apache License, Version 2.0 please
 # contact: bdiaz@whitestack.com or glavado@whitestack.com
 ##
-
+import argparse
+import asyncio
 import logging
 import subprocess
 import sys
-import uuid
 
 import requests
+from aiokafka import AIOKafkaConsumer
 
-from osm_mon.core.message_bus.consumer import Consumer
+from osm_mon.core.config import Config
 
 log = logging.getLogger(__name__)
 
 
 def main():
-    # Check Kafka
+    parser = argparse.ArgumentParser(prog='osm-mon-healthcheck')
+    parser.add_argument('--config-file', nargs='?', help='MON configuration file')
+    args = parser.parse_args()
+    cfg = Config(args.config_file)
+
     if not _processes_running():
         sys.exit(1)
-    if not _is_kafka_ok():
+    if not _is_kafka_ok(cfg.get('message', 'host'), cfg.get('message', 'port')):
         sys.exit(1)
     if not _is_prometheus_exporter_ok():
         sys.exit(1)
@@ -49,9 +54,10 @@ def _processes_running():
             if process_name in row:
                 return True
         return False
+
     processes_to_check = ['osm-mon-collector', 'osm-mon-evaluator', 'osm-mon-server']
     ps = subprocess.Popen(['ps', 'aux'], stdout=subprocess.PIPE).communicate()[0]
-    processes_running = ps.split('\n')
+    processes_running = ps.decode().split('\n')
     for p in processes_to_check:
         if not _contains_process(processes_running, p):
             return False
@@ -68,13 +74,17 @@ def _is_prometheus_exporter_ok():
         return False
 
 
-def _is_kafka_ok():
+def _is_kafka_ok(host, port):
+    async def _test_kafka(loop):
+        consumer = AIOKafkaConsumer(
+            'healthcheck',
+            loop=loop, bootstrap_servers='{}:{}'.format(host, port))
+        await consumer.start()
+        await consumer.stop()
+
     try:
-        common_consumer = Consumer("mon-healthcheck-" + str(uuid.uuid4()))
-        topics = ['alarm_request', 'vim_account']
-        common_consumer.subscribe(topics)
-        common_consumer.poll()
-        common_consumer.close(autocommit=False)
+        loop = asyncio.get_event_loop()
+        loop.run_until_complete(_test_kafka(loop))
         return True
     except Exception:
         log.exception("MON can not connect to Kafka")