docker provider with terraform locally

main.tf

provider "docker" {
  host = "unix:///var/run/docker.sock"
}

resource "docker_image" "ubuntu" {
  name = "ubuntu:precise"
}

resource "docker_image" "nginx" {
  name = "nginx:latest"
}

resource "docker_container" "nginx" {
  image = docker_image.nginx.latest
  name  = "enginecks"
  ports {
    internal = 80
    external = 80
  }
}