documentation about remote publishing

documents/remote.markdown

+Keep software build systems in sync with a CVMFS repository server.
+
+↪ `attributes/remote.rb`  
+↪ `recipes/remote.rb`  
+↪ `files/default/cvmfs-remote.rb`  
+↪ `tests/roles/cvmfs_remote_test.rb`
+
+Attributes
+----------
+
+All attributes in `node.cvmfs`:
+
+* `remote` (required) – Hash containing a list of CVMFs repository servers. 
+* `remote_key` (optional) – SSH private key used to login to the CVMFS repository servers. 
+
+Example
+-------
+
+Each element in `node.cvmfs.remote` requires a `server` host name and a list of users `maintainer` allowed to modify the local software directory, and to synchronise with the CVMFS server.
+
+    :cvmfs => {
+      :remote => {
+        "alpha.devops.test" => {
+          :server => "lxfs01.devops.test",
+          :maintainer => [ 'skywalker','solo' ]
+        },
+        "betta.devops.test" => {
+          :server => 'lxfs02.devops.test',
+          :maintainer => [ 'lea', 'joda' ]
+        }
+      },
+      :remote_key => '…'
+    […]
+