packer-nixos/template.json

{
  "builders": [
    {
      "boot_command": [
        "fdisk /dev/sda<enter>",
        "n",
        "<enter><enter><enter><enter><enter>",
        "a<enter>",
        "1<enter>",
        "w<enter>",
        "<wait>",
        "mkfs.ext4 -j -L nixos /dev/sda1<enter><wait5>",
        "mount LABEL=nixos /mnt<enter><wait>",
        "nixos-generate-config --root /mnt<enter><wait>",
        "curl http://{{ .HTTPIP }}:{{ .HTTPPort }}/configuration.nix > /mnt/etc/nixos/configuration.nix<enter><wait>",
        "curl http://{{ .HTTPIP }}:{{ .HTTPPort }}/guest-virtualbox.nix > /mnt/etc/nixos/guest.nix<enter><wait>",
        "curl http://{{ .HTTPIP }}:{{ .HTTPPort }}/users-vagrant.nix > /mnt/etc/nixos/users.nix<enter><wait>",
        "curl http://{{ .HTTPIP }}:{{ .HTTPPort }}/vagrant.nix > /mnt/etc/nixos/vagrant.nix<enter><wait>",
        "nixos-install \u0026\u0026 reboot<enter>"
      ],
      "boot_wait": "1m",
      "guest_additions_mode": "disable",
      "guest_os_type": "Linux_64",
      "http_directory": "nixos",
      "iso_checksum": "sha256:aa9eeb04a491a84036368a93545400d79d16d281d4b7a29979bbb4f8476f9b81",
      "iso_url": "https://releases.nixos.org/nixos/22.05/nixos-22.05.1700.365e1b3a859/nixos-minimal-22.05.1700.365e1b3a859-x86_64-linux.iso",
      "shutdown_command": "sudo shutdown -h now",
      "ssh_private_key_file": "keys/vagrant.key",
      "ssh_timeout": "20m",
      "ssh_username": "root",
      "type": "virtualbox-iso",
      "vboxmanage": [
        [
          "modifyvm",
          "{{.Name}}",
          "--memory",
          "1024"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--cpus",
          "2"
        ]
      ],
      "virtualbox_version_file": ".vbox_version"
    }
  ],
  "post-processors": [
    {
      "output": "nixos-22.05-x86_64-{{.Provider}}.box",
      "type": "vagrant"
    }
  ],
  "provisioners": [
    {
      "execute_command": "sudo sh '{{.Path}}'",
      "script": "scripts/postinstall.sh",
      "type": "shell"
    }
  ]
}