From c4ab5893b4e7b0c7a53ef5b05576ae5f613977d7 Mon Sep 17 00:00:00 2001
From: Pavol Ipoth <pavol.ipoth@telekom.com>
Date: Sat, 2 Mar 2019 00:51:41 +0100
Subject: [PATCH] Add README how to generate ER diagram

---
 README.md | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/README.md b/README.md
index 7c3e14c..f250385 100644
--- a/README.md
+++ b/README.md
@@ -156,3 +156,21 @@ delete record:
 ```
 curl -H 'Content-Type: application/json' -X PATCH --data '{"rrsets": [ {"name": "test.yourdomain.com.", "type": "A", "ttl": 86400, "changetype": "DELETE"}]}' -H 'X-API-Key: YUdDdGhQM0tMQWV5alpJ' http://localhost:9191/api/v1/servers/localhost/zones/yourdomain.com | jq
 ```
+
+### Generate ER diagram
+
+```
+apt-get install python-dev graphviz libgraphviz-dev pkg-config
+```
+
+```
+pip install graphviz mysqlclient ERAlchemy
+```
+
+```
+docker-compose up -d
+```
+
+```
+eralchemy -i 'mysql://powerdns_admin:changeme@'$(docker inspect powerdns-admin-mysql|jq -jr '.[0].NetworkSettings.Networks.powerdnsadmin_default.IPAddress')':3306/powerdns_admin' -o /tmp/output.pdf
+```