Cannot disable PasswordAuthentication due to /ssh_config.d/50-cloud-init.conf

[Isabellent]

Bug report

Hello,
First thx for your answers.
The issue is /ssh_config.d/50-cloud-init.conf witch override my ssh_config and i cannot disable PasswordAuthentication to use only the pubkey. I don't have access to it, it's like the file doesn't exist.

Steps to reproduce the problem

1. I have just installed the last ubuntu srv version into a desktop wipped.
2. Then tried to adapted the ssh config to disable the PasswordAuthentication ...
3. So both (pubkey and PasswordAuthentication ) still working.
4. it's seems that the 50-cloud-init.conf (PasswordAuthentication yes) override my ssh_config (PasswordAuthentication no). I founded by doing a grep PasswordAuthentication into /etc/ssh.
5. i tried to modified it, but i don't find it.
6. I tried to add ``ssh_pwauth: falseinto/etc/cloud.cfg.d/newfile.cfg``` witch crash my ssh , so canceled.
7. I tried to comment the line Include /etc/ssh/ssh_config.d/* , not working , both still working.

Environment details

• Cloud-init version:/
• Operating System Distribution: Ubuntu 24.04.1 LTS (GNU/Linux 6.8.0-50-generic x86_64)
• Cloud provider, platform or installer type: /
• Features: any snaps features installed during the server installation

cloud-init logs

[TheRealFalcon]

cloud-init doesn't write 50-cloud-init.conf by default. It should only write it if it receives user-data to do so.

If you are certain there is no custom configuration being applied to your instance to set SSH password authentication, please attach the results of cloud-init collect-logs here.