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CS156

Staff Info - Information about dokku for course staff

Troubleshooting Dokku Access

If a staff member or student is unable to access dokku, check these things:

  1. Is there entry in the List of Users correct (see below, i.e. /home/eci/dokku_users_list)
  2. Are they over their CSIL disk quota? (This will prevent them from logging in to dokku for obscure reasons). If so, check https://ucsb-cs156.github.io/topics/CSIL/csil_disk_quota.html
  3. Check that student has a valid public key: ls ~/.ssh/id_rsa.pub and a valid private key in ~/.ssh/id_rsa

  4. Check that the student has added that key to their authorized keys:

    touch ~/.ssh/authorized_keys
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
  5. Check the file permissions of ~/.ssh and the contents of ~/.ssh. They should be: 
    chmod 700 ~/.ssh
chmod 600 ~/.ssh/*

List of Users

The file /home/eci/dokku_users_list should be editable by the CMPSC 156 instructor; if it isn’t, contact ECI.

That file has one user per line, and a dokku machine they are authorized for.