Comment 10 for bug 1649341

Ok so it appears we didn't have the very latest oslo.messaging, which contains a fix related to the comment #2 error - now we get this:

python2-oslo-messaging.noarch 0:5.14.0-0.20161208143704.044e1bb.el7.centos

Complete!
[stack@instack ~]$ sudo nova-manage cell_v2 simple_cell_setup --transport-url "rabbit://55f7b1c2b4ee0e8a4f8311de334c6b71d13c1b45:1cf85a15b3fb0d86ec3bda2dedd3b8952ad6d72a@192.0.2.1//"
error: (pymysql.err.OperationalError) (1044, u"Access denied for user 'nova_api'@'192.0.2.1' to database 'nova_api_cell0'")

So I guess we've got some DB wrangling to do in puppet too :(