[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.

Beginne in modules/selenium/src/main/java/org/testcontainers/containers/BrowserWebDriverContainer.java etwa bei Zeile 224, wo der /dev/shm-Bind hinzugefügt wird. Reproduziere das Problem mit dem bereitgestellten BuggyTest unter Linux und überprüfe anschließend, dass das Starten desselben BrowserWebDriverContainer nach dem Stoppen nicht mehr mit einem Fehler wegen eines doppelten Mount-Punkts fehlschlägt.