Comment 1 for bug 1653768

Probably should have included this in the first place, but here's the output I got from trying to run a standalone image build:

[centos@undercloud ~]$ openstack overcloud image build --config-file /usr/share/openstack-tripleo-common/image-yaml/overcloud-images.yaml --config-file $OS_YAML
Command '['disk-image-create', '-a', 'amd64', '-o', './ironic-python-agent.qcow2', '-t', 'qcow2', '-p', 'python-hardware-detect,yum-plugin-priorities', '--min-tmpfs=5', 'centos7', 'ironic-agent', 'dynamic-login', 'element-manifest', 'network-gateway', 'enable-packages-install', 'pip-and-virtualenv-override', 'selinux-permissive']' returned non-zero exit status 1
[centos@undercloud ~]$