Ceph » mgr » Dashboard

Environment: SLE-15 (Python 3-only)

After enabling the dashboard, it is impossible to run "ceph mgr dashboard set-login-credentials <username> <password>". The output is: "no valid command found".

The log shows:

2018-03-19 13:48:04.130 7fe940513700  0 log_channel(audit) log [DBG] : from='client.14160 149.202.189.62:0/3426884016' entity='client.admin' cmd=[{"prefix": "dashboard set-login-credentials", "username": "admin", "password": "admin"}]: dispatch
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer status'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer mode'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer on'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer off'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer eval'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer eval-verbose'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer optimize'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer show'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer rm'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer reset'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer dump'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'balancer execute'
2018-03-19 13:48:04.130 7fe940513700  1 mgr.server handle_command pyc_prefix: 'dashboard set-login-credentials'
2018-03-19 13:48:04.138 7fe940d14700  1 mgr.server reply handle_command (22) Invalid argument Traceback (most recent call last):
  File "/usr/lib64/ceph/mgr/dashboard_v2/module.py", line 155, in handle_command
    Auth.set_login_credentials(cmd['username'], cmd['password'])
  File "/usr/lib64/ceph/mgr/dashboard_v2/controllers/auth.py", line 90, in set_login_credentials
    hashed_passwd = Auth.password_hash(password)
  File "/usr/lib64/ceph/mgr/dashboard_v2/controllers/auth.py", line 62, in password_hash
    return bcrypt.hashpw(password, salt_password)
  File "/usr/lib64/python3.6/site-packages/bcrypt/__init__.py", line 62, in hashpw
    raise TypeError("Unicode-objects must be encoded before hashing")
TypeError: Unicode-objects must be encoded before hashing

Full log attached.