Add rsync tunnel example

examples/lrsyncssh-tunnel.lua

@@ -0,0 +1,33 @@
+-- This is an advanced tunnel config that uses the tunnel, load balancing
+-- and extra large file transfers
+
+sync {
+    default.rsync,
+    tunnel = tunnel {
+        command = {"ssh", "-N", "-L", "localhost:${localport}:localhost:873", "user@testmachine"},
+        mode = "pool",
+        parallel = 2,
+    },
+    crontab = {
+            -- does a full sync once a day at 3:00:01
+            "1 0 3 * * *"
+    },
+    source = "/data/projects",
+    target    = "rsync://localhost:${localport}/projects",
+    delay = 5,
+    batchSizeLimit = 1024 * 1024 * 30,
+    maxProcesses = 4,
+    rsync = {
+            inplace = true,
+    }
+}
+
+-- On your target machine configure rsyncd.conf like this:
+-- [projects]
+--   uid = myuser
+--   gid = mygroup
+--   path = /srv/projects
+--   read only = false
+
+-- If you restrict the ssh key or server to allow only port forwarding and no shell
+-- this is a very secure setup