nova-compute can not run when use ceph

[franklin798]

when I use ceph as back_end for nova,nova-computer can not run,the log as follow:
INFO:__main__:Kolla config strategy set to: COPY_ALWAYS
INFO:__main__:Loading config file at /var/lib/kolla/config_files/config.json
INFO:__main__:Validating config file
INFO:__main__:Copying service configuration files
INFO:__main__:Copying /var/lib/kolla/config_files/nova.conf to /etc/nova/nova.conf
INFO:__main__:Setting permissions for /etc/nova/nova.conf
INFO:__main__:Removing existing destination: /etc/ceph/
ERROR:__main__:Unexpected error:
Traceback (most recent call last):
  File "/usr/local/bin/kolla_set_configs", line 304, in <module>
    exit_code = main()
  File "/usr/local/bin/kolla_set_configs", line 298, in main
    execute_config_strategy()
  File "/usr/local/bin/kolla_set_configs", line 234, in execute_config_strategy
    copy_config(config)
  File "/usr/local/bin/kolla_set_configs", line 186, in copy_config
    copy_files(data)
  File "/usr/local/bin/kolla_set_configs", line 75, in copy_files
    shutil.rmtree(dest)
  File "/usr/lib64/python2.7/shutil.py", line 256, in rmtree
    onerror(os.rmdir, path, sys.exc_info())
  File "/usr/lib64/python2.7/shutil.py", line 254, in rmtree
    os.rmdir(path)
OSError: [Errno 39] Directory not empty: '/etc/ceph/'

  I find the file: rbdmap in the directory /etc/ceph,and I use command rm -f rbdmap to delete rbdmap,but i can't delete the file as "cannot remove 'rbdmap': Permission denied".
  Anyone can help me to resolve this problem? thanks!

[franklin798 (franklin798)]

I check the file rbdmap, it's owner is root,but the current user is nova,so shutil.rmtree() could not execute as Permission denied.

[franklin798 (franklin798)]

i resolve this problem by modified method copy_files in file set_configs.py in kolla project.