Using docker:dind image as docker server

Is this a BUG REPORT or FEATURE REQUEST?:

Description

I use docker:dind image as docker server with purpose deploy my project in k8s (My project require docker server to run some container)

How to reproduce

Start docker server with docker:dind image: Step 1: docker run --privileged -p 12375:2375 --name some-docker -d \ --network docker-network --network-alias docker \ -e DOCKER_TLS_CERTDIR="" \ -v some-docker-certs-ca:/certs/ca \ -v some-docker-certs-client:/certs/client \ docker:dind

Step 2 : connect my maven project with docker server: DockerClient docker = DefaultDockerClient.builder() .uri(URI.create("http://localhost:12375")) .build();

Then I config HostConfig and ContainerConfig like: HostConfig hostConfig = HostConfig.builder(). appendBinds("/home/dung/Desktop/demo/tmp_dir:/foo").build();

    ContainerConfig containerConfig = ContainerConfig.builder().
            image("gcc:8.5-buster").
            cmd("sh", "-c", "while :; do sleep 100; done").
            attachStdout(true).
            attachStdin(true).
            hostConfig(hostConfig).
            build();

    ContainerCreation containerCreation = docker.createContainer(containerConfig);

    docker.startContainer(containerCreation.id());

What do you expect

My expect is find in: /home/dung/Desktop/demo/tmp_dir appear in /foo - folder in container

It work well with my docker client like:
DockerClient docker = new DefaultDockerClient("unix:///var/run/docker.sock"); But does not work with : DockerClient docker = DefaultDockerClient.builder() .uri(URI.create("http://localhost:12375")) .build();

What happened instead

[Describe the actual results]

Software:

docker version: docker image docker:dind
Spotify's docker-client version: 3.5.12

Full backtrace

[Paste full backtrace here]

spotify / docker-client