Enable UI automation by default (#137)

scripts/automationmodetool.expect

@@ -0,0 +1,6 @@
+#!/usr/bin/expect -f
+
+spawn automationmodetool enable-automationmode-without-authentication
+expect "Enter the password for user 'admin':"
+send "admin\n"
+expect "Setting up machine to allow Automation Mode without requiring user authentication... succeeded."

templates/base.pkr.hcl

@@ -102,4 +102,9 @@ build {
       "brew install awscli"
     ]
   }
+
+  # Enable UI automation, see https://github.com/cirruslabs/macos-image-templates/issues/136
+  provisioner "shell" {
+    script = "scripts/automationmodetool.expect"
+  }
 }