guestagent contract for packages should be a list

[Craig Vyvial]

The RPC contract for the prepare call to the guest agent should be consistent.

the prepare call currently makes the call with a long string and the guest agent splits the string.

packages = "pkg1 pkg2 pkg3"

The prepare call for users and databases are a list of strings so the packages should really be the same.

users = ["user1", user2", "user3"]
databases = ["db1", "db2", "db3"]
packages = ["pkg1", "pkg2", "pkg3"]

[Denis M. (dmakogon)]

for backward compatibility i'd suggest to verify if 'packages' attribute is a 'list of strings' or 'string' and then act dependently on the type of attribute

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/104108
Committed: https://git.openstack.org/cgit/openstack/trove/commit/?id=fc1ba31b427157b22dd84e022e36b9cb6a5e093e
Submitter: Jenkins
Branch: master

commit fc1ba31b427157b22dd84e022e36b9cb6a5e093e
Author: Craig Vyvial <email address hidden>
Date: Wed Jul 2 03:08:51 2014 -0500

    guestagent contract for packages should be a list

    the guestagent contract on the prepare call sends the packages to
    install as a long space delimited string and this should be a list. The
    other parameters are lists like users and databases. The packages should
    be a list as well.

    Closes-Bug: #1341966
    Change-Id: I05233bfce6d4b81351b797a30d3a55313edf277e