[
   {
      "name":"http_status",
      "expression":"avg(http_status{}) > 0",
      "severity":"LOW"
   }
]

[
   {
      "name":"http_status",
      "expression":"avg(http_status{}) > 0",
      "severity":"LOW",
      "match_by":"service,url,tenant_id,region,hostname,id"
   }
]

Add match_by to default http_status alarm definition
Add match_by to default http_status alarm definition

Change-Id: Iad5f570057ca86c0390ee811604f2406c4afb205
