Q & A

1. Getting Private key file is encrypted paramiko error

Try the following:

• Upgrade paramiko to the latest version.
• https://unix.stackexchange.com/a/12201/32880
• https://askubuntu.com/a/853578/33408

2. How to upgrade OS

This roughly boils to:

1. Restrict service access.

   $ webscaff off

2. Backup data.

   $ webscaff run.backup

   Tip

   If you use a cloud service this may also prove disk images/backups.

3. Start OS upgrade procedure.

   $ webscaff sys.utils.os-upgrade

4. Upgrade PostgreSQL cluster.

   $ webscaff sys.pg.cluster-upgrade X

   Tip

   Where X is a previous PG version to upgrade from, e.g 12.

5. Cleanup from unused packages.

   $ webscaff sys.apt.autoremove

6. Upgrade virtual environment to use a new system Python version.

   $ webscaff run.venv.sync

7. Restart your service.

   $ webscaff restart

   Tip

   Use $ webscaff log in a separate terminal window to see how the restart is happening.