variable "drone_instances" {
  description = "How many runner instances should there be?"
  default = 3
}
variable "root_pass" {
  description = "Root password to set on the node"
}

variable "linode_api_token" {
  description = "Linode API Token"
}

variable "ssh_pubkey" {
    description = "SSH key to be allowed access by default"
}

terraform {
  required_providers {
    linode = {
      source = "linode/linode"
      version = "1.16.0"
    }
  }
 backend "local" {
         path = "/data/runner.tfstate"  
 }
}

provider "linode" {
  token = var.linode_api_token
}

resource "linode_instance" "terraform-drone" {
  connection { 
               type = "ssh"
               user = "root"
               password = var.root_pass    
               host     = self.ip_address  
             }

        count = var.drone_instances
        image = "private/15818922"
        label = "drone-runner-${count.index + 1}"
        group = "docker"
        tags = ["tag_Testing","docker"]
        region = "ap-southeast"
        type = "g6-standard-2"
        authorized_keys = [ var.ssh_pubkey ]
        root_pass = var.root_pass

  provisioner "remote-exec" {
    inline = [
        "yum upgrade -y && systemctl restart docker",
        "docker rm -f runner",
        "docker run --detach --volume=/var/run/docker.sock:/var/run/docker.sock --env=DRONE_RPC_PROTO=https --env=DRONE_RPC_HOST=drone.guise.net.nz --env=DRONE_RPC_SECRET=super-duper-secret --env=DRONE_RUNNER_CAPACITY=2 --env=DRONE_RUNNER_NAME=drone-runner-${count.index + 1} --env=DRONE_RUNNER_LABELS='linodrone:true' --env=--publish=3000:3000 --restart=always --name=runner drone/drone-runner-docker:1"
    ]
  }
}