I'm trying to build CentOS templates in cloudstack using Packer.

Below is a config.json that works for ubuntu using temporary keys:


"builders": [{
  "type": "cloudstack",
  "communicator": "ssh",
  "ssh_username": "{{user `ssh_username`}}",
  "ssh_handshake_attempts": 2,
  "ssh_password": "",

  "api_url": "{{user `api_url`}}",
  "api_key": "{{user `api_key`}}",
  "network": "{{user `network`}}",
  "secret_key": "{{user `secret_key`}}",
  "service_offering": "{{user `service_offering`}}",
  "source_template": "{{user `source_template`}}",
  "template_os": "{{user `template_os`}}",
  "zone": "{{user `zone`}}",
  "expunge": true,
  "public_ip_address": "{{user `public_ip`}}",

  "template_name": "{{user `template_name`}}-{{isotime \"020106-0304\"}}",
  "template_password_enabled": true,
  "template_scalable": true

}],


The part that is failing is SSH on to the newly built VM.


"handshake error: ssh: handshake failed: ssh: unable to authenticate, 
attempted methods [none publickey], no supported methods remain"

I am able to log in to the machine with the password generated by cloud 
stack (passwordenabled = true) but not with the generated key. When I log 
in with password I can't see any .ssh/ directory and therefore the 
temporary public key isn't in the correct authorized_keys file. 

That explains why SSH fails, it is trying public key auth but can't do it.

However, when using winrm communicator with windows VMs, if winrm_password 
is left blank or is left out entirely then it defaults to the generated 
password. Is this not possible with the SSH communicator?

Or is there a reason that the public key isn't being put on to the VM in 
the first place?

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