20.0.0 Adding multiple authorized_keys fail

[devastgh]

According to the documentation:
Note: Please ensure the keys are specified as a list by pasting within the [] comma delimited.
This does not generate a proper authorized_keys file. The generated file will have one line with comma between keys.
The authrozed_keys file format mandates each key to be in a new line.
Either the documentation needs to be fixed, mandating an empty line between each key like:

authorized_keys:
  - >
    ssh-ed25519
    AAAAC3Nzaxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx whatever

    ssh-ed25519
    AAAAC3Nzxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx whatever2

    ssh-ed25519
    AAAAC3Nxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    whatever3.whatnot.com

or the script needs to be fixed that generates the file.

[sinclairpaul]

On save in the config, a List should be generated (as specified in the docs), i.e.:

If you paste ssh-ed25519 AASD2342124124CNALCMLAK234234AASDJ, ssh-ed25519 AASDJKJKJFWJFAFLCNALCML23134555 within the brackets and click save you get:

authorized_keys:
  - ssh-ed25519 AASD2342124124CNALCMLAK234234AASDJ
  - ssh-ed25519 AASDJKJKJFWJFAFLCNALCML23134555

Which generates:

ssh-ed25519 AASD2342124124CNALCMLAK234234AASDJ
ssh-ed25519 AASDJKJKJFWJFAFLCNALCML23134555

Not sure why this isn't occurring for you.

[devastgh]

I checked again. I'm using the UI configuration. If i paste ssh-ed25519 AASD2342124124CNALCMLAK234234AASDJ, ssh-ed25519 AASDJKJKJFWJFAFLCNALCML23134555 then apply and restart the addon, the configuration window will show this:

authorized_keys:
  - >-
    ssh-ed25519
    AAAAC3xxxxxxxxxxxxxxxxxx,
    ssh-ed25519
    AAAAC3NzaCxxxxxxxxxxxxx,
    ssh-ed25519
    AAAAC3Nzaxxxxxxxxxxxxxx

This will not generate good authorized_keys file.
However, if add each key like this:

authorized_keys:
  - ssh-ed25519 AAAACxxxxxxxxxxxxx
  - ssh-ed25519 AAAACxxxxxxxxxxxxxxxxx
  - ssh-ed25519 AAAACxxxxxxxxxxx

then i apply and restart, it will work good and the configuration will show this:

authorized_keys:
  - >-
    ssh-ed25519
    AAAAC3NzaCxxxxxxxxxxxxxxx
  - >-
    ssh-ed25519
    AAAAC3NzaCxxxxxxxxxxxxxxx
  - >-
    ssh-ed25519
    AAAAC3NzaCxxxxxxxxxxxxxxx

This will also generate a good key file.
I can't seem to produce a valid key file with , as a delimiter.
Are you sure it works for you? Test with the second key (the first always works, whatever you write after it), or simply check /etc/ssh/authorized_keys if it has the proper format.

[sinclairpaul]

Are you sure it works for you?

Yep

[devastgh]

Are you sure it works for you?

Yep

Thanks, that clears up things for me. I think what confused me was that applying a config rewrites the formatting. The empty [] brackets are only visible after you install the addon and go into the configuration. First i used a single key. Then i wanted to add more, so i went into the doc to read how to do that, and assumed it would be like:

authorized_keys:
    - [key1, key2, key3]

That didn't work, hence i assumed it's a bug.