Report node health and unreachable nodes from EUREKA health

get_health looked only at each node's State, so an Enabled node whose
Health was Warning or Critical left the chassis reported as ok. It also
skipped a node whose resource could not be read, counting it as
healthy while an unreadable chassis was flagged. Report the node's
Health when it is not OK, and a node that cannot be read as
Unreachable.

confluent_server/aiohmi/redfish/oem/megware/eureka.py

@@ -177,12 +177,18 @@ class OEMHandler(generic.OEMHandler):
             note_issue('Chassis', const.Health.Warning, 'Unreachable')
 
         for sysurl in self._allsysurls:
+            name = sysurl.rstrip('/').rsplit('/', 1)[-1]
             try:
                 sysinfo = await self._do_web_request(sysurl)
             except Exception:
+                note_issue(name, const.Health.Warning, 'Unreachable')
                 continue
-            state = sysinfo.get('Status', {}).get('State', 'Absent')
-            name = sysurl.rstrip('/').rsplit('/', 1)[-1]
+            status = sysinfo.get('Status', {})
+            state = status.get('State', 'Absent')
+            health = status.get('Health', 'OK')
             if state != 'Enabled':
                 note_issue(name, const.Health.Warning, state)
+            elif health != 'OK':
+                note_issue(name, generic._healthmap.get(
+                    health, const.Health.Warning), health)
         return summary