onp fcos issue - No bootable disk

[k37y]

• Correct --disk= option from size=${DISK_GB} to ${DISK} in virt-install command.

[k37y]

• Add SSH password authentication

variant: fcos
version: 1.4.0
storage:
  files:
    - path: /etc/ssh/sshd_config.d/20-enable-passwords.conf
      mode: 0644
      contents:
        inline: |
          # Fedora CoreOS disables SSH password login by default.
          # Enable it.
          # This file must sort before 40-disable-passwords.conf.
          PasswordAuthentication yes

[k37y]

• Replace watch sudo virsh domifaddr fcos with sudo virsh console fcos.

[k37y]

Add NETWORK and BUTANE environment variable.