[Bug]: Cannot reuse Selenium BrowserWebDriverContainers under Linux

Module

Selenium

Testcontainers version

2.0.5

Using the latest Testcontainers version?

Yes

Host OS

Ubuntu 26 LTS

Host Arch

x86-64

Docker version

Client:
 Version:           29.6.2
 API version:       1.55
 Go version:        go1.26.5
 Git commit:        dfc4efb
 Built:             Thu Jul 16 16:11:35 2026
 OS/Arch:           linux/amd64
 Context:           default

Server: Docker Desktop 4.83.0 (234302)
 Engine:
  Version:          29.6.2
  API version:      1.55 (minimum version 1.40)
  Go version:       go1.26.5
  Git commit:       3d80467
  Built:            Thu Jul 16 16:12:20 2026
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          v2.2.5
  GitCommit:        e53c7c1516c3b2bff98eb76f1f4117477e6f4e66
 runc:
  Version:          1.3.6
  GitCommit:        v1.3.6-0-g491b69ba
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

What happened?

When trying to reuse a BrowserWebDriverContainer under Linux, starting the container after stopping it once fails with com.github.dockerjava.api.exception.BadRequestException: Status 400: {"message":"Duplicate mount point: /dev/shm"}. Under Windows the following test succeeds - under Linux it does not.

Reproducer:

import org.junit.jupiter.api.Test;
import org.testcontainers.junit.jupiter.Container;
import org.testcontainers.junit.jupiter.Testcontainers;
import org.testcontainers.selenium.BrowserWebDriverContainer;
import org.testcontainers.utility.DockerImageName;

@Testcontainers
public class BuggyTest {

    @Container
    static final BrowserWebDriverContainer BROWSER_WEB_DRIVER_CONTAINER = new BrowserWebDriverContainer(
           DockerImageName.parse("selenium/standalone-chrome:148.0-20260505")
    );

    @Test
    void testContainer() {
        BROWSER_WEB_DRIVER_CONTAINER.start();
        BROWSER_WEB_DRIVER_CONTAINER.stop();

        BROWSER_WEB_DRIVER_CONTAINER.start(); //this fails
        BROWSER_WEB_DRIVER_CONTAINER.stop();
    }

}

Relevant log output

org.testcontainers.containers.ContainerLaunchException: Container startup failed for image selenium/standalone-chrome:148.0-20260505
        at org.testcontainers.containers.GenericContainer.doStart(GenericContainer.java:346)
        at org.testcontainers.containers.GenericContainer.start(GenericContainer.java:317)
        at org.example.testcontainerseleniumbugdemo.BuggyTest.testContainer(BuggyTest.java:22)
Caused by: org.rnorth.ducttape.RetryCountExceededException: Retry limit hit with exception
        at org.rnorth.ducttape.unreliables.Unreliables.retryUntilSuccess(Unreliables.java:88)
        at org.testcontainers.containers.GenericContainer.doStart(GenericContainer.java:331)
        ... 2 more
Caused by: org.testcontainers.containers.ContainerLaunchException: Could not create/start container
        at org.testcontainers.containers.GenericContainer.tryStart(GenericContainer.java:551)
        at org.testcontainers.containers.GenericContainer.lambda$doStart$0(GenericContainer.java:341)
        at org.rnorth.ducttape.unreliables.Unreliables.retryUntilSuccess(Unreliables.java:81)
        ... 3 more
Caused by: com.github.dockerjava.api.exception.BadRequestException: Status 400: {"message":"Duplicate mount point: /dev/shm"}

        at org.testcontainers.shaded.com.github.dockerjava.core.DefaultInvocationBuilder.execute(DefaultInvocationBuilder.java:237)
        at org.testcontainers.shaded.com.github.dockerjava.core.DefaultInvocationBuilder.post(DefaultInvocationBuilder.java:124)
        at org.testcontainers.shaded.com.github.dockerjava.core.exec.CreateContainerCmdExec.execute(CreateContainerCmdExec.java:37)
        at org.testcontainers.shaded.com.github.dockerjava.core.exec.CreateContainerCmdExec.execute(CreateContainerCmdExec.java:13)
        at org.testcontainers.shaded.com.github.dockerjava.core.exec.AbstrSyncDockerCmdExec.exec(AbstrSyncDockerCmdExec.java:21)
        at org.testcontainers.shaded.com.github.dockerjava.core.command.AbstrDockerCmd.exec(AbstrDockerCmd.java:33)
        at org.testcontainers.shaded.com.github.dockerjava.core.command.CreateContainerCmdImpl.exec(CreateContainerCmdImpl.java:608)
        at org.testcontainers.containers.GenericContainer.tryStart(GenericContainer.java:425)
        ... 5 more

Additional Information

The problem is most likely located in https://github.com/testcontainers/testcontainers-java/blob/main/modules/selenium/src/main/java/org/testcontainers/containers/BrowserWebDriverContainer.java#L224 that adds the /dev/shm bind again, not checking that the bind has been already added previously.

Start in modules/selenium/src/main/java/org/testcontainers/containers/BrowserWebDriverContainer.java around line 224, where the /dev/shm bind is added. Reproduce the issue with the provided BuggyTest on Linux, then verify that starting the same BrowserWebDriverContainer after stopping it no longer fails with a duplicate mount point error.