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[🐛 Bug]: Simple document change for getting Helm charts working #1810

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@indeed-ted

Description

@indeed-ted

What happened?

I was going through the helm chart steps here: https://github.com/SeleniumHQ/docker-selenium/blob/trunk/charts/selenium-grid/README.md

Everything worked and initialized fine in helm/kubectl, but two commands/steps were missing to get the ingress url (default is selenium-grid.local) to be useful. I am new to all of this and I kept getting this:

$ ping selenium-grid.local
ping: selenium-grid.local: Name or service not known

And therefore, when trying to create a RemoteWebDriver using the ingress URL like this in Java:

        String gridIngressUrl = "http://selenium-grid.local";
        ChromeOptions caps = new ChromeOptions();
        RemoteWebDriver driver = new RemoteWebDriver(new URL(gridIngressUrl), caps);

was giving me this exception:
Caused by: java.net.UnknownHostException: selenium-grid.local.: Name or service not known

I figured out these 2 steps were required to get the ingress urls to work:

Step 1: Verify ingress config, run: kubectl get ingress

$ kubectl get ingress
NAME               CLASS   HOSTS                     ADDRESS        PORTS   AGE
selenium-ingress   nginx   selenium-grid.local       192.168.49.2   80      45m

Step 2: Add the IP and host name to the local host file in /etc/hosts, like:
192.168.49.2 selenium-grid.local

It would be very useful to add it to this README: https://github.com/SeleniumHQ/docker-selenium/blob/trunk/charts/selenium-grid/README.md

Command used to start Selenium Grid with Docker

helm install selenium-grid docker-selenium/selenium-grid

Relevant log output

$ ping selenium-grid.local
ping: selenium-grid.local: Name or service not known

Operating System

Ubuntu 20.04.6 LTS (GNU/Linux 5.15.0-1031-aws x86_64)

Docker Selenium version (tag)

$ helm list 
NAME         	NAMESPACE	REVISION	UPDATED                                	STATUS  	CHART               	APP VERSION
selenium-grid	default  	1       	2023-03-16 18:27:29.187525806 -0500 CDT	deployed	selenium-grid-0.15.4	4.8.1-20230306

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