Restart container on config change

[zimbatm]

Is your feature request related to a problem? Please describe.

Let's say I have a config file on the host, and a docker container that loads it. If the config file gets updated, the container isn't notified of the change. Eg:

resource "linuxbox_text_file" "caddy_config" {
  ssh_user     = local.ssh_user
  ssh_key      = local.ssh_key
  host_address = local.host_address

  path  = "/home/ubuntu/Caddyfile"
  content = <<-CADDYFILE
  # Caddy config here
  CADDYFILE
  owner = 1000
  group = 1000
  mode  = 644
}

resource "linuxbox_docker_container" "caddy" {
  depends_on = [
    linuxbox_text_file.caddy_config,
  ]

  ssh_user     = local.ssh_user
  ssh_key      = local.ssh_key
  host_address = local.host_address

  image_id = "caddy:2.4.6-alpine"
  name     = "caddy"
  restart  = "unless-stopped"

  ports = [
    "80:80",
    "443:443",
  ]

  volumes = [
    "/home/ubuntu/Caddyfile:/etc/caddy/Caddyfile",
  ]
}

Describe the solution you'd like

Add a triggers section in the linuxbox_docker_container resource that works like the null_resource. Whenever the trigger values change, it forces the recreation of the resource, restarting the container in the process.

Describe alternatives you've considered

A null resource could be used to trigger a restart.

Potentially add a trigger_action that can be set to "reload" for containers that support soft-reloads.

Additional context