Add 30s delay befor alarming on apache service status

Apache has to be restarted at log-rotation moment, 30s Apache
outage is fine.

Change-Id: Id7d0296a874c3f9bfaa3dc707a160b7c6f8ea3bc
Related-PROD: PROD-32539
diff --git a/apache/meta/prometheus.yml b/apache/meta/prometheus.yml
index 621b218..3cba406 100644
--- a/apache/meta/prometheus.yml
+++ b/apache/meta/prometheus.yml
@@ -8,6 +8,7 @@
       if: >-
         apache_up != 1
       {%- raw %}
+      for: 30s
       labels:
         severity: minor
         service: apache
@@ -19,6 +20,7 @@
       if: >-
         count(label_replace(apache_up, "cluster", "$1", "host", "([^0-9]+).+")) by (cluster) == count(label_replace(apache_up == 0, "cluster", "$1", "host", "([^0-9]+).+")) by (cluster)
       {% raw %}
+      for: 30s
       labels:
         severity: critical
         service: apache