Grafana: Update default refresh intervals, enable gate ingress

This updates the grafana dashboards to use a default refresh
value of 5m to prevent dashboards with intensive queries (like the
container dashboard) from submitting frequent, expensive requests
to Prometheus

This also removes the override to disable the ingress service for
grafana in the developer deployment script, as it was overlooked
when enabling ingresses after the ingress chart was introduced

Change-Id: I0958a3978cec25a1350172cbe75996f1346858c5

grafana/values.yaml

@@ -4499,7 +4499,7 @@ conf:
           type: interval
       annotations:
         list: []
-      refresh: 1m
+      refresh: 5m
       schemaVersion: 12
       version: 26
       links: []
@@ -5672,7 +5672,7 @@ conf:
           type: query
       annotations:
         list: []
-      refresh: 1m
+      refresh: 5m
       schemaVersion: 12
       version: 22
       links: []
@@ -5718,7 +5718,7 @@ conf:
       hideControls: false
       id:
       links: []
-      refresh: 1m
+      refresh: 5m
       rows:
       - collapse: false
         height:
@@ -9971,7 +9971,7 @@ conf:
           type: query
       annotations:
         list: []
-      refresh: 10s
+      refresh: 5m
       schemaVersion: 12
       version: 13
       links: []
@@ -10009,7 +10009,7 @@ conf:
       hideControls: false
       id:
       links: []
-      refresh: 5s
+      refresh: 5m
       rows:
       - collapse: false
         height: 266
@@ -13181,7 +13181,7 @@ conf:
       hideControls: false
       id:
       links: []
-      refresh: 1m
+      refresh: 5m
       rows:
       - collapse: false
         height: 250px
@@ -14649,7 +14649,7 @@ conf:
       hideControls: false
       id:
       links: []
-      refresh: 10s
+      refresh: 5m
       rows:
       - collapse: false
         height: 250
@@ -15257,7 +15257,7 @@ conf:
       hideControls: false
       id:
       links: []
-      refresh: 1m
+      refresh: 5m
       rows:
       - collapse: false
         height: 250px

tools/deployment/developer/100-grafana.sh

@@ -32,7 +32,6 @@ manifests:
   job_db_session_sync: false
   secret_db: false
   secret_db_session: false
-  service_ingress: false
 conf:
   grafana:
     database: