3

I am trying to create a cloud-init configuration file to inject my own SSH keys into the "ubuntu" user for a Multipass instance. I have managed to successfully inject my SSH key when I create a new user for myself and set the SSH key for that user. However, the SSH key for the "ubuntu" user disappears in the process. How should I structure the YAML file so that the "ubuntu" user remains unchanged and I can still access the machine using SSH?

Here is my example cloud-init YAML file:

#cloud-config

users:


    

  • default
    • 

  • name: vmuser
sudo: ALL=(ALL) NOPASSWD:ALL
ssh_authorized_keys:
      

    • ssh-rsa AAAAB3Nza....
      • 

    

    • 



output:
  all: ">> /var/log/cloud-init-output.log"

Additionally, I have tried using the runcmd and echo commands to directly set the SSH key in the authorized_keys file, like so:

runcmd:
  - sudo echo "ssh-rsa AAAAB3Nza..." >> ~/home/ubuntu/.ssh/authorized_keys

However, this does not work.

Any help or guidance on how to achieve this would be greatly appreciated. Thank you!

vmvart
  • 33

1 Answers1

0

The ssh_authorized_keys key should do what you need. The following example will set the key for your user along with the default ubuntu user:

#cloud-config

users:


    

  • default
    • 

  • name: vmuser
sudo: ALL=(ALL) NOPASSWD:ALL
ssh_authorized_keys:
      

    • ssh-rsa AAAAB3Nza....
      • 

    

    • 



output:
  all: ">> /var/log/cloud-init-output.log"


ssh_authorized_keys:


    

  • ssh-rsa AAAAB3Nza....
    •
falcojr
  • 324
  • 1
  • 5