Using openstack-glance-2014.2.1-2.el7.centos.noarch, a `packstack --allinone` fails with:

ERROR : Error appeared during Puppet run: 192.168.100.21_glance.pp
Error: Could not start Service[glance-api]: Execution of '/usr/bin/systemctl start openstack-glance-api' returned 1: Job for openstack-glance-api.service failed. See 'systemctl status openstack-glance-api.service' and 'journalctl -xn' for details.

This is due to the following AVCs:

type=AVC msg=audit(1426616794.406:4895): avc:  denied  { create } for  pid=9946 comm="glance-api" scontext=system_u:system_r:glance_api_t:s0 tcontext=system_u:system_r:glance_api_t:s0 tclass=unix_dgram_socket
type=AVC msg=audit(1426616884.741:5572): avc:  denied  { create } for  pid=10203 comm="glance-api" scontext=system_u:system_r:glance_api_t:s0 tcontext=system_u:system_r:glance_api_t:s0 tclass=unix_dgram_socket
type=AVC msg=audit(1426616974.618:5622): avc:  denied  { create } for  pid=10281 comm="glance-api" scontext=system_u:system_r:glance_api_t:s0 tcontext=system_u:system_r:glance_api_t:s0 tclass=unix_dgram_socket
type=AVC msg=audit(1426616974.618:5623): avc:  denied  { connect } for  pid=10281 comm="glance-api" scontext=system_u:system_r:glance_api_t:s0 tcontext=system_u:system_r:glance_api_t:s0 tclass=unix_dgram_socket

Aka:

# audit2allow -a

#============= glance_api_t ==============
allow glance_api_t self:unix_dgram_socket { create connect };
[centos@rdo yum.repos.d]$ rpm -q openstack-glance
openstack-glance-2014.2.1-2.el7.centos.noarch