improve doc

grafana/README.md

@@ -1,17 +1,26 @@
-# grafana
+# Grafana and Prometheus for OpenShift 3.7
 
 ## Description
 
-## Build in OpenShift
+Grafana is a nice webui showing monitoring data that comes from various sources.
+One of those sources is Prometheus.
+
+This project proposes ready-to-use templates to deploy Prometheus and Grafana
+on OpenShift.
+
+## Deployment
+
+### Deploy Grafana and Prometheus
 
 ```
-oc new-build https://github.com/nmasse-itix/OpenShift-Docker-Images.git --context-dir grafana --name grafana --to grafana
+oc process -f grafana-prometheus-storage.yaml -p PVC_SIZE=1Gi |oc create -f -
+oc process -f grafana-prometheus.yaml |oc create -f -
+oc process -f grafana-base.yaml |oc create -f -
 ```
 
-## Deploy in OpenShift
+### Deploy only Grafana with its vanilla configuration
 
 ```
-oc new-app https://github.com/nmasse-itix/OpenShift-Docker-Images.git --context-dir grafana --name grafana
+oc process -f grafana-nodatasource.yaml |oc create -f -
-oc volume dc grafana --add --overwrite --name=grafana-volume-0 -t pvc --claim-size=512Mi --claim-name=grafana-data --mount-path=/var/lib/grafana/
+oc process -f grafana-base.yaml |oc create -f -
 ```
-