magg@cloud1:~$ strace keystone-manage token list 2>&1 | grep 'keystone.conf"'
stat64("/home/magg/keystone.conf", 0xbfd50e9c) = -1 ENOENT (No such file or directory)
stat64("/usr/etc/keystone.conf", 0xbfd50e9c) = -1 ENOENT (No such file or directory)
stat64("/home/magg/.keystone/keystone.conf", 0xbfd50e9c) = -1 ENOENT (No such file or directory)
stat64("/usr/etc/keystone.conf", 0xbfd50e9c) = -1 ENOENT (No such file or directory)
stat64("/home/magg/keystone.conf", 0xbfd50e9c) = -1 ENOENT (No such file or directory)
stat64("/usr/etc/keystone.conf", 0xbfd50e9c) = -1 ENOENT (No such file or directory)
stat64("/etc/keystone/keystone.conf", 0xbfd50e9c) = -1 ENOENT (No such file or directory)
stat64("/usr/etc/keystone.conf", 0xbfd50e9c) = -1 ENOENT (No such file or directory)
stat64("/etc/keystone.conf", {st_mode=S_IFREG|0644, st_size=2483, ...}) = 0
stat64("/etc/keystone.conf", {st_mode=S_IFREG|0644, st_size=2483, ...}) = 0
open("/etc/keystone.conf", O_RDONLY|O_LARGEFILE) = 3
open("/etc/keystone.conf", O_RDONLY|O_LARGEFILE) = 3
open("/etc/keystone.conf", O_RDONLY|O_LARGEFILE) = 3