[CE-493] Check K8s Host Status failed

1. Fix the bug that checking K8s Host Status failed
2. Add the env 'PERIOD_TIME' in 'watchdog' to set the period time

Change-Id: I6b6cc3fe4ef2d5a8858e7c5cc2c5dcbbd0022199
Signed-off-by: whty0 <wangzhipengxlj@163.com>

src/modules/host.py

@@ -398,14 +398,21 @@ def refresh_status(self, id):
         if not host:
             logger.warning("No host found with id=" + id)
             return False
-        if not self.host_agents[host.type]\
-                .refresh_status(host.worker_api):
-            logger.warning("Host {} is inactive".format(id))
-            self.db_set_by_id(id, **{"status": "inactive"})
-            return False
+        if host.type == WORKER_TYPE_K8S:
+            if not self.host_agents[host.type]\
+                    .refresh_status(host.k8s_param):
+                logger.warning("Host {} is inactive".format(id))
+                self.db_set_by_id(id, **{"status": "inactive"})
+                return False
         else:
-            self.db_set_by_id(id, **{"status": "active"})
-            return True
+            if not self.host_agents[host.type]\
+                    .refresh_status(host.worker_api):
+                logger.warning("Host {} is inactive".format(id))
+                self.db_set_by_id(id, **{"status": "inactive"})
+                return False
+
+        self.db_set_by_id(id, **{"status": "active"})
+        return True
 
     def is_active(self, host_id):
         """

src/watchdog.py

@@ -18,6 +18,7 @@
 MONGODB_PORT = int(os.getenv('MONGODB_PORT', 27017))
 MONGODB_USERNAME = os.getenv('MONGODB_USERNAME', '')
 MONGODB_PASSWORD = os.getenv('MONGODB_PASSWORD', '')
+PERIOD_TIME = int(os.getenv('PERIOD_TIME', 15))
 
 connect(MONGODB_DB, host=MONGODB_HOST, username=MONGODB_USERNAME,
         password=MONGODB_PASSWORD, connect=False, tz_aware=True)
@@ -133,4 +134,4 @@ def watch_run(period=15):
 
 
 if __name__ == '__main__':
-    watch_run()
+    watch_run(PERIOD_TIME)