// Leader image - Contains the tools required by the leaders

variable "cpus" {
    type = number
    default = 2
}

variable "memory" {
    type = number
    default = 1024
}

variable "disk_size" {
    type = string
    default = "4G"
}

variable "iso_url" {
    type = string
    # This should be hosted by an artifact repo (or be lazy and python -m http.server)
    default = "http://localhost:8000/output/arch.img"
}

variable "iso_checksum" {
    type = string
    default = "file:http://localhost:8000/packer_arch_qemu_sha256.checksum"
}

variable "ssh_username" {
    type = string
    default = "deploy"
}

variable "ssh_password" {
    type = string
    default = "deploy"
}

source "qemu" "leader" {
    headless = true
    accelerator = "kvm"
    vm_name = "leader.img"
    http_directory = "http"
    output_directory = "output"

    cpus = var.cpus
    memory = var.memory

    disk_size = var.disk_size
    format = "raw"

    disk_image = true
    iso_url = var.iso_url
    iso_checksum = var.iso_checksum
    iso_target_path = "cache/arch.img"

    boot_wait = "2s"
    boot_key_interval = "25ms"
    boot_command = [
        "<enter>",
        "<wait30s>"
    ]

    ssh_username = var.ssh_username
    ssh_password = var.ssh_password

    shutdown_command = "sudo -S shutdown -P now"
}

build {
    sources = ["source.qemu.leader"]

    provisioner "shell" {
        inline = [
            "sudo pacman -Sy --noconfirm",
            "sudo pacman -S --noconfirm consul",
            "sudo pacman -Scc --noconfirm",
            "sudo docker pull hashicorp/nomad-pack:0.0.1-techpreview.3"
        ]
    }

    // TODO: Add consul and nomad config files

    post-processor "checksum" {
        checksum_types = ["sha256"]
        keep_input_artifact = true
    }

    # Validate that the image is good
    // post-processor "shell-local" {
    //     inline = ["qemu-system-x86_64 -drive file=output/arch.img -m 1024"]
    // }
}