From 71e0b90f8321f66130fd7c0f3b9cb5364b3557b1 Mon Sep 17 00:00:00 2001
From: Zohar Galor <zgalor@redhat.com>
Date: Thu, 19 Oct 2017 15:33:10 +0300
Subject: Add nfs variables documentation to README file

Add documentation of external nfs variables
---
 roles/openshift_prometheus/README.md | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

(limited to 'roles/openshift_prometheus')

diff --git a/roles/openshift_prometheus/README.md b/roles/openshift_prometheus/README.md
index c5a44bffb..ce72930ed 100644
--- a/roles/openshift_prometheus/README.md
+++ b/roles/openshift_prometheus/README.md
@@ -23,8 +23,8 @@ For default values, see [`defaults/main.yaml`](defaults/main.yaml).
 
 - `openshift_prometheus_image_<COMPONENT>`: specify image for the component 
 
-## Storage related variables
-Each prometheus component (prometheus, alertmanager, alert-buffer, oauth-proxy) can set pv claim by setting corresponding role variable:
+## PVC related variables
+Each prometheus component (prometheus, alertmanager, alertbuffer) can set pv claim by setting corresponding role variable:
 ```
 openshift_prometheus_<COMPONENT>_storage_type: <VALUE>
 openshift_prometheus_<COMPONENT>_pvc_(name|size|access_modes|pv_selector): <VALUE>
@@ -37,6 +37,29 @@ openshift_prometheus_alertbuffer_pvc_size: 10G
 openshift_prometheus_pvc_access_modes: [ReadWriteOnce]
 ```
 
+## NFS PV Storage variables
+Each prometheus component (prometheus, alertmanager, alertbuffer) can set nfs pv by setting corresponding variable:
+```
+openshift_prometheus_<COMPONENT>_storage_kind=<VALUE>
+openshift_prometheus_<COMPONENT>_storage_(access_modes|host|labels)=<VALUE>
+openshift_prometheus_<COMPONENT>_storage_volume_(name|size)=<VALUE>
+openshift_prometheus_<COMPONENT>_storage_nfs_(directory|options)=<VALUE>
+```
+e.g
+```
+openshift_prometheus_storage_kind=nfs
+openshift_prometheus_storage_access_modes=['ReadWriteOnce']
+openshift_prometheus_storage_host=nfs.example.com #for external host
+openshift_prometheus_storage_nfs_directory=/exports
+openshift_prometheus_storage_alertmanager_nfs_options='*(rw,root_squash)'
+openshift_prometheus_storage_volume_name=prometheus
+openshift_prometheus_storage_alertbuffer_volume_size=10Gi
+openshift_prometheus_storage_labels={'storage': 'prometheus'}
+```
+
+NOTE: Setting `openshift_prometheus_<COMPONENT>_storage_labels` overrides `openshift_prometheus_<COMPONENT>_pvc_pv_selector`
+
+
 ## Additional Alert Rules file variable
 An external file with alert rules can be added by setting path to additional rules variable: 
 ```
-- 
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