Merge pull request #3649 from dekked/extra-vars-from-file

Extra vars from file

bin/ansible-playbook

@@ -94,10 +94,20 @@ def main(args):
         options.ask_sudo_pass = options.ask_sudo_pass or C.DEFAULT_ASK_SUDO_PASS
         ( sshpass, sudopass ) = utils.ask_passwords(ask_pass=options.ask_pass, ask_sudo_pass=options.ask_sudo_pass)
         options.sudo_user = options.sudo_user or C.DEFAULT_SUDO_USER
-    if options.extra_vars and options.extra_vars[0] in '[{':
+
+    extra_vars = {}
+    if options.extra_vars:
+        if options.extra_vars.startswith("@"):
+            # Argument is a JSON file
+            with open(options.extra_vars[1:]) as fd:
+                extra_vars = utils.json_loads(fd.read())
+        elif options.extra_vars[0] in '[{':
+            # Arguments as JSON
             extra_vars = utils.json_loads(options.extra_vars)
         else:
+            # Arguments as Key-value
             extra_vars = utils.parse_kv(options.extra_vars)
+
     only_tags = options.tags.split(",")
     skip_tags = options.skip_tags
     if options.skip_tags is not None:

docsite/latest/rst/playbooks2.rst

@@ -289,6 +289,9 @@ As of Ansible 1.2, you can also pass in extra vars as quoted JSON, like so::
 
 The key=value form is obviously simpler, but it's there if you need it!
 
+As of Ansible 1.3, extra vars can be loaded from a JSON file with the "@" syntax::
+
+    --extra-vars "@some_file.json"
 
 Conditional Execution
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