You see a «Permission denied» error when connecting to a VM created in Terraform

Issue descriptionIssue description

You see a "Permission denied" error when trying to establish an SSH connection to a VM created in Terraform.

SolutionSolution

If you pass a key in the ssh-keys option, the text specified in the SSH key's comment will not be processed.
As a result, the key will be assigned to the user set as default in the cloud-init configuration for this image.

If you need to add a user with a specific name when creating your VM, pass the metadata file in a cloud-init-compatible YAML format, adding the metadata file path to the Terraform's manifest:

1. Create a UTF-8 encoded text file with the following contents:

   #cloud-config
   users:
     - name: <user name>
       groups: sudo
       shell: /bin/bash
       sudo: 'ALL=(ALL) NOPASSWD:ALL'
       ssh_authorized_keys:
         - ssh-ed25519 AAAAB3Nza......OjbSMRX user@example.com
         - ssh-ed25519 AAAAB3Nza......Pu00jRN user@desktop
   

2. Add the following text to the metadata section in your Terraform manifest:

   metadata = {
       user-data = "${file("<file_path>")}"
   }
   

You can look up details about the user and the key in the serial port output for the created VM. If the SSH key is valid, the output should include:

ci-info: ++++++++++++++++++++++++++++++++++++++Authorized keys from /home/test/.ssh/authorized_keys for user ubuntu++++++++++++++++++++++++++++++++++++
ci-info: +---------+-------------------------------------------------------------------------------------------------+---------+----------------------+
ci-info: | Keytype |                                       Fingerprint (sha256)                                      | Options |       Comment        |
ci-info: +---------+-------------------------------------------------------------------------------------------------+---------+----------------------+
ci-info: | ssh-rsa | 7f:fa:ab:5c:b5:67:6b:4a:65:1e:65:bb:93:13:0b:0b:d2:06:52:63:bf:ed:c6:16:4d:55:b6:fb:c5:a2:30:f0 |    -    | some_text            |
ci-info: +---------+-------------------------------------------------------------------------------------------------+---------+----------------------+

Where ubuntu is the username, and ssh-rsa is the SSH key fingerprint.