Does not work with Docker in Docker

[saneery]

How to reproduce

1. Start DinD

docker run --privileged -e DOCKER_TLS_CERTDIR='' --network host docker:dind 

2. Run

 DOCKER_HOST=tcp://localhost:2375 mix testcontainers.run test

Output:

** (MatchError) no match of right hand side value: {:error, :badarg}
    (testcontainers 1.13.3) lib/mix/tasks/testcontainers/run.ex:24: Mix.Tasks.Testcontainers.Run.run/1
    (mix 1.18.3) lib/mix/task.ex:495: anonymous fn/3 in Mix.Task.run_task/5
    (mix 1.18.3) lib/mix/cli.ex:107: Mix.CLI.run_task/2
    /Users/hq-qf70cr9n9d/.asdf/installs/elixir/1.18.3/bin/mix:2: (file)

[saneery]

We should bind volume to testcontainers/ryuk with docker socket then run inside docker. Fixed with adding this here https://github.com/testcontainers/testcontainers-elixir/blob/main/lib/testcontainers.ex#L360

  defp handle_docker_socket_binding(config, _, %URI{scheme: "tcp", path: docker_socket_path}) do
    Container.with_bind_mount(
      config,
      "/var/run/docker.sock",
      "/var/run/docker.sock",
      "rw"
    )
  end

[jarlah]

This Will not work for rootless. Maybe we need to do some elixir fu here. You are free to add a PR and see if tests pass

[jarlah]

I mean if its called by default i mean