def userdata(request):
"""Provide file download of user-data to re-start an instance.
"""
ec2data = request.session["ec2data"]
response = HttpResponse(mimetype='text/plain')
response['Content-Disposition'] = 'attachment; filename={cluster_name}-userdata.txt'.format(
**ec2data)
form = request.session["ec2data"]
cml = CloudManLaunch(form["access_key"], form["secret_key"], form['cloud'])
ud = cml._compose_user_data(ec2data)
response.write(ud)
return response
