error

    Data failed to compile:
----------
    Rendering SLS services.mysql failed, render error: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/salt/utils/templates.py", line 55, in render_tmpl
    output = render_str(tmplstr, context, tmplpath)
  File "/usr/lib/python2.7/dist-packages/salt/utils/templates.py", line 98, in render_jinja_tmpl
    output = jinja_env.from_string(tmplstr).render(**context)
  File "/usr/lib/python2.7/dist-packages/jinja2/environment.py", line 894, in render
    return self.environment.handle_exception(exc_info, True)
  File "<template>", line 5, in top-level template code
UndefinedError: 'dict object' has no attribute 'mysql_root_password'

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/salt/state.py", line 1781, in render_state
    rendered_sls=mods
  File "/usr/lib/python2.7/dist-packages/salt/template.py", line 64, in compile_template
    ret = render(input_data, env, sls, **render_kwargs)
  File "/usr/lib/python2.7/dist-packages/salt/renderers/jinja.py", line 41, in render
    tmp_data.get('data', 'Unknown render error in jinja renderer')
SaltRenderError: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/salt/utils/templates.py", line 55, in render_tmpl
    output = render_str(tmplstr, context, tmplpath)
  File "/usr/lib/python2.7/dist-packages/salt/utils/templates.py", line 98, in render_jinja_tmpl
    output = jinja_env.from_string(tmplstr).render(**context)
  File "/usr/lib/python2.7/dist-packages/jinja2/environment.py", line 894, in render
    return self.environment.handle_exception(exc_info, True)
  File "<template>", line 5, in top-level template code
UndefinedError: 'dict object' has no attribute 'mysql_root_password'

mysql.sls

mysql-server:¶                                                                                                                   
     debconf.set:¶
         - data:¶
             'mysql-server/root_password': {'type': 'password', 'value': {{ grains['mysql_root_password'] }}}¶
             'mysql-server/root_password_again': {'type': 'password', 'value': {{ grains['mysql_root_password'] }}}¶
 ¶
         - require:¶
             - grains.present:¶
                 - name: mysql_root_password¶
                 - value: 'test'¶
 ¶
     pkg:¶
         - installed¶