忘れるのでメモ

% docker-compose down
Error response from daemon: cannot stop container: nginx: permission denied

% sudo aa-remove-unknown
% sudo systemctl restart snapd.apparmor.service
% docker-compose down
/snap/docker/2746/lib/python3.6/site-packages/paramiko/transport.py:32: CryptographyDeprecationWarning: Python 3.6 is no longer supported by the Python core team. Therefore, support for it is deprecated in cryptography. The next release of cryptography (40.0) will be the last to support Python 3.6.
  from cryptography.hazmat.backends import default_backend
Stopping nginx ... done
Removing nginx ... done