[🐛 Bug]: Dynamic Selenium Grid is not working on Podman

[murtuzak01]

What happened?

The selenium hub and node shows up and running but when a UI test case is executed it shows error in logs

Command used to start Selenium Grid with Docker (or Kubernetes)

---- Docker File
FROM selenium/node-docker:4.9.1-20230508

### Subsequent Arguments
ARG UID \
    GID \
    mount_home

### Run as root
USER root
ENV mount_home=${mount_home}

### Change Root password
RUN mkdir -p /home/app \
    && echo "root:root123" | chpasswd \
### Create app user/group     
    && groupadd --gid ${GID} app \
    && mkdir -m 777 -p /ext \
    && mkdir -m 777 -p /ext/app \
    && useradd -d /ext/app -m -s /bin/bash app --uid ${UID} --gid ${GID} \
    && echo "app:app" | chpasswd \
    && chown -R app:app /opt \
    && groupadd -g ${GID} appgroup || true

USER app

-----------------------
Docker run commands
podman run -d --name selenium-hub --network psnet -p 4444:4444 -p 4442:4442 -p 4443:4443 --user 1001:1001 -v selenium:/selenium:rw -v selenium/assets:/opt/selenium/assets:rw -v .selenium:/home/seluser/Downloads goldensource/selenium-hub:4.24.0-20240830
 
podman run -d --name selenium-node --network psnet --shm-size 2g --user 1001:1001 -e SE_EVENT_BUS_HOST=selenium-hub -e SE_EVENT_BUS_PUBLISH_PORT=4442 -e SE_EVENT_BUS_SUBSCRIBE_PORT=4443 -e mount_home=selenium -e SE_OPTS=--enable-managed-downloads\ true -v selenium:/selenium:rw -v selenium/assets:/opt/selenium/assets:rw -v .selenium:/home/seluser/Downloads -v /var/run/docker.sock:/var/run/docker.sock goldensource/selenium-node:4.24.0-20240830

Relevant log output

04:32:35.096 INFO [DockerSessionFactory.apply] - Waiting for server to start (container id: 60a29e9590740034e5c8e4deb74557a7d6d8081849e94f6a07ac2584d5fbb326, url http://10.89.0.162:4444/wd/hub)
04:32:45.602 INFO [Container.stop] - Stopping container 60a29e9590740034e5c8e4deb74557a7d6d8081849e94f6a07ac2584d5fbb326
04:32:45.604 WARN [DockerMessages.throwIfNecessary] - Unable to stop container: 60a29e9590740034e5c8e4deb74557a7d6d8081849e94f6a07ac2584d5fbb326
no container with name or ID "60a29e9590740034e5c8e4deb74557a7d6d8081849e94f6a07ac2584d5fbb326" found: no such container
04:32:45.604 WARN [Container.stop] - Unable to stop container: Unable to stop container: 60a29e9590740034e5c8e4deb74557a7d6d8081849e94f6a07ac2584d5fbb326
no container with name or ID "60a29e9590740034e5c8e4deb74557a7d6d8081849e94f6a07ac2584d5fbb326" found: no such container
org.openqa.selenium.docker.DockerException: Unable to stop container: 60a29e9590740034e5c8e4deb74557a7d6d8081849e94f6a07ac2584d5fbb326
no container with name or ID "60a29e9590740034e5c8e4deb74557a7d6d8081849e94f6a07ac2584d5fbb326" found: no such container
	at org.openqa.selenium.docker.v1_41.DockerMessages.throwIfNecessary(DockerMessages.java:59)
	at org.openqa.selenium.docker.v1_41.StopContainer.apply(StopContainer.java:49)
	at org.openqa.selenium.docker.v1_41.V141Docker.stopContainer(V141Docker.java:125)
	at org.openqa.selenium.docker.Container.stop(Container.java:57)
	at org.openqa.selenium.grid.node.docker.DockerSessionFactory.apply(DockerSessionFactory.java:194)
	at org.openqa.selenium.grid.node.docker.DockerSessionFactory.apply(DockerSessionFactory.java:90)
	at org.openqa.selenium.grid.node.local.SessionSlot.apply(SessionSlot.java:147)
	at org.openqa.selenium.grid.node.local.LocalNode.newSession(LocalNode.java:441)
	at org.openqa.selenium.grid.node.NewNodeSession.execute(NewNodeSession.java:52)
	at org.openqa.selenium.remote.http.Route$TemplatizedRoute.handle(Route.java:192)
	at org.openqa.selenium.remote.http.Route.execute(Route.java:68)
	at org.openqa.selenium.grid.security.RequiresSecretFilter.lambda$apply$0(RequiresSecretFilter.java:64)
	at org.openqa.selenium.remote.tracing.SpanWrappedHttpHandler.execute(SpanWrappedHttpHandler.java:86)
	at org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:64)
	at org.openqa.selenium.remote.http.Route$CombinedRoute.handle(Route.java:336)
	at org.openqa.selenium.remote.http.Route.execute(Route.java:68)
	at org.openqa.selenium.grid.node.Node.execute(Node.java:255)
	at org.openqa.selenium.remote.http.Route$CombinedRoute.handle(Route.java:336)
	at org.openqa.selenium.remote.http.Route.execute(Route.java:68)
	at org.openqa.selenium.remote.AddWebDriverSpecHeaders.lambda$apply$0(AddWebDriverSpecHeaders.java:35)
	at org.openqa.selenium.remote.ErrorFilter.lambda$apply$0(ErrorFilter.java:44)
	at org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:64)
	at org.openqa.selenium.remote.ErrorFilter.lambda$apply$0(ErrorFilter.java:44)
	at org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:64)
	at org.openqa.selenium.netty.server.SeleniumHandler.lambda$channelRead0$0(SeleniumHandler.java:44)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)
04:32:45.604 WARN [DockerSessionFactory.apply] - Unable to connect to docker server (container id: 60a29e9590740034e5c8e4deb74557a7d6d8081849e94f6a07ac2584d5fbb326)
04:32:45.604 WARN [SeleniumSpanExporter$1.lambda$export$1] - Unable to connect to docker server. Stopping container: java.net.http.HttpConnectTimeoutException: HTTP connect timed out
Build info: version: '4.9.1', revision: 'eb2032df7f'
System info: os.name: 'Linux', os.arch: 'amd64', os.version: '4.18.0-553.58.1.el8_10.x86_64', java.version: '11.0.18'
Driver info: driver.version: unknown ..

Operating System

Redhat Enterprise Linux 8.10(Ootpa) - Fedora

Docker Selenium version (image tag)

4.9.1-20230508

Selenium Grid chart version (chart version)

No response

[github-actions]

@murtuzak01, thank you for creating this issue. We will troubleshoot it as soon as we can.

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Thank you!

[VietND96]

For Podman, The default socket path is unix:///run/podman/podman.sock for rootful and unix://$XDG_RUNTIME_DIR/podman/podman.sock for rootless users
So, in command, this part -v /var/run/docker.sock:/var/run/docker.sock, I think this wrong, since there is no docker socket on host machine when you are using Podmand.
Let's try mount host Podman socket to container. Something like
-v /run/podman/podman.sock:/var/run/docker.sock
If socket is not running in default location, try identify its socket then mount volume to container.