From 6d32b0ef2c426c02299a36e1a17d439b38d84192 Mon Sep 17 00:00:00 2001
From: Adam Samalik <asamalik@redhat.com>
Date: Fri, 10 Apr 2015 08:47:42 +0200
Subject: [PATCH] Update README.md

---
 README.md | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/README.md b/README.md
index 50c3a26..099a978 100644
--- a/README.md
+++ b/README.md
@@ -15,3 +15,31 @@ The Dist Git server repeatedly asks a package database for information about pac
 User cat interact with the Dist Git server using client probably based on [rpkg](https://fedorahosted.org/rpkg/). The client authenticates with an ssh certificate for git communication and with an http client certificate for uploads to the lookaside cache.
 
 ![server-communication](/images/server-communication.png)
+
+### Package Database communication
+The following is an example JSON data comming from the Package Database which would create two packages: *copr-frontend* and *copr-backend*. The first package would be for Fedora 21 only and permissions to commit into this repo would be granted to users *mirek*, *adam* and anyone in the group *provenpackager*. The *copr-backend* package would be for Fedora 21 and CentOS 7. The permissions would be processed the same way as for the first package.
+
+    "packageAcls": {
+        "copr-frontend": {
+            "fedora-21": {
+                "commit": {
+                    "groups": ["provenpackager"],
+                    "people": ["mirek", "adam"]
+                }
+            }
+        },
+        "copr-backend": {
+            "fedora-21": {
+                "commit": {
+                    "groups": ["provenpackager"],
+                    "people": ["mirek", "valentin"]
+                }
+            }
+            "centos-7": {
+                "commit": {
+                    "groups": ["provenpackager"],
+                    "people": ["mirek", "valentin"]
+                }
+            }
+        }
+    }