Comment 13 for bug 1775782

As I mention in comment #1,

Make changes in glance/cmd/api.py as mentioned in [1] and then changing ExecStart mentioned in /<email address hidden> unit file to

ExecStart = /usr/local/bin/glance-api

NOTE:
After modifying <email address hidden> we need to relaod deamon using "sudo systemctl daemon-reload" command

[1] http://paste.openstack.org/show/722963/

So rosmaita, we need to change the devstack script to use

run_process g-api "$GLANCE_BIN_DIR/glance-api

instead of

run_process g-api "$GLANCE_BIN_DIR/glance-api --config-dir=$GLANCE_CONF_DIR"