chore(metrics): add prometheus query interval

Author: jianxiaoguo

rootfs/api/monitor.py

@@ -119,7 +119,9 @@ async def last_metrics(namespace):
     if not settings.DRYCC_METRICS_CONFIG:
         return
     promql = query_last_metrics_promql_tpl % (
-        '|'.join(settings.DRYCC_METRICS_CONFIG.keys()), namespace, '1m')
+      '|'.join(settings.DRYCC_METRICS_CONFIG.keys()),
+      namespace,
+      settings.DRYCC_METRICS_INTERVAL)
     url = urljoin(settings.DRYCC_PROMETHEUS_URL, "/api/v1/query")
     params = {"query": promql, "start": int(time.time() - 60)}
     async with aiohttp.ClientSession() as session:

rootfs/api/settings/production.py

@@ -281,6 +281,7 @@
     with open(DRYCC_METRICS_CONFIG_PATH) as fd:
         DRYCC_METRICS_CONFIG = json.load(fd)
 DRYCC_METRICS_EXPIRY = int(os.environ.get('DRYCC_METRICS_EXPIRY', '20'))
+DRYCC_METRICS_INTERVAL = os.environ.get('DRYCC_METRICS_INTERVAL', '5m')
 
 # security keys and auth tokens
 random_secret = 'CHANGEME_sapm$s%upvsw5l_zuy_&29rkywd^78ff(qi*#@&*^'