The error was: 'dict object' has no attribute 'permission_of_mon'.

[TsutomuNakamura]

TASK [ceph : Run create_ceph_auth_cap.sh for addming a filter cap.] ***********************
fatal: [dev-storage01]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: 'dict object' has no attribute 'permission_of_mon'. 'dict object' has no attribute 'permission_of_mon'\n\nThe error appears to be in '/opt/ansible/roles/ceph/tasks/set_auth_caps/monitors/main.yml': line 17, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n# It assumes that a variable \"client_credentials\" has already declared.\n- name: \"Run create_ceph_auth_cap.sh for addming a filter cap.\"\n  ^ here\n"}