feat(Live): Display more info in the console

[lslezak]

Problem

• Similar to printing the root password to the console the users should know more details about the system, esp.security related data like the Agama SSL certificate fingerprint

Solution

• Add several issue generators which contain the required details

Displayed Info

• Agama welcome message, it would be nice to welcome the users 🤝
• The welcome message contains the Agama version (8+227 means version 8 + additional 227 commits from Git, for the public release it will display only the plain version like 9)
• SSH host key fingerprints, useful when connecting via SSH to verify that you are really connecting to the right machine
• Agama SSL certificate fingerprint, when connecting remotely you should verify that the same fingerprint is reported by the browser
• Prints Agama URLs for connection, including the mDNS name
• (The generated root password was already printed at the console before.)

Details

• The mDNS name (e.g. "agama.local") is directly obtained from the Avahi server, if you start a second Agama instance it will use the "agama-2.local" name to avoid conflicts. If the Avahi daemon does not run or is stopped then the item is removed from the list.
• Also the SSL certificate fingerprint is automatically refreshed whenever the certificate file is updated or removed.
• Using the udev rule ensures that the dynamically added/removed network devices will be handled correctly
• The version in the welcome message is static (not refreshed after creating it), later when we support some kind of self-update we could possibly regenerate it as well
• The same applies for the SSH host key fingerprints , currently they are static

Testing

• Tested manually

Screenshots

[dgdavid]

Code-wise I can't help too much, but the overall approach LGTM.

Thanks for such a cool and complete welcome! ❤️

[imobachgs]

Great work! Thanks a lot.

[imobachgs]

Nice trick :-)