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+.. _mod-etcd:
+
+Etcd module
+-----------
+
+The module connects to Etcd peers and watches for configuration change.
+By default, the module looks for the subtree under ``/knot-resolver`` directory,
+but you can change this `in the configuration <https://github.com/mah0x211/lua-etcd#cli-err--etcdnew-optiontable->`_.
+
+The subtree structure corresponds to the configuration variables in the declarative style.
+
+.. code-block:: bash
+
+	$ etcdctl set /knot-resolvevr/net/127.0.0.1 53
+	$ etcdctl set /knot-resolver/cache/size 10000000
+
+Configures all listening nodes to following configuration:
+
+.. code-block:: lua
+
+	net = { '127.0.0.1' }
+	cache.size = 10000000
+
+Example configuration
+^^^^^^^^^^^^^^^^^^^^^
+
+.. code-block:: lua
+
+	modules = {
+		etcd = {
+			prefix = '/knot-resolver',
+			peer = 'http://127.0.0.1:7001'
+		}
+	}
+
+.. warning:: Work in progress!
+
+Dependencies
+^^^^^^^^^^^^
+
+* `lua-etcd <https://github.com/mah0x211/lua-etcd>`_ available in LuaRocks
+
+    ``$ luarocks install etcd --from=https://mah0x211.github.io/rocks/``
+