diff --git a/README.rst b/README.rst
index fb15f4f..5acaf4e 100644
--- a/README.rst
+++ b/README.rst
@@ -1,12 +1,19 @@
 Terraform module to post install a alpine VM 
 
+Description
+-----------
+
+* add service sshd
+
+* disable service crond
+  
 Usage
 -----
 
 In the root terraform add::
 
    module "postinstall" {
-      source                 = "../alpine_postinstall"
+      source                 = "git::https://git.dalembert.upmc.fr/terraform/module_alpine_postinstall"
       connection_ip          = var.eth0_ip
       connection_private_key = file(var.pm_private_key)
     }
diff --git a/main.tf b/main.tf
index b62d12a..e45af66 100644
--- a/main.tf
+++ b/main.tf
@@ -21,8 +21,12 @@ resource "null_resource" "alpine_postinstall" {
       "echo '# module alpine_postinstall'",
       "echo '#--------------------------'",
       "apk add file man-pages tzdata bash htop vim",
+      "echo '# install service openssh-server'",
       "apk add openssh-server",
-      "echo '# module DONE'",
+      #
+      "echo '# stop and disable service crond'",
+      "rc-service crond stop",
+      "rc-update del crond",
     ]
   }
 }