Make sure chromedriver can run with Java selenium code, both in a real machine and in docker

Install chromedriver

You want to make the following line of code run successfully.

ChromeDriver driver = new ChromeDriver();

In windows, you need to download chrome driver from https://chromedriver.chromium.org/downloads and put it in system’s path (An alternative is to set the executable file’s path as a system property “webdriver.chrome.driver”, not beautiful)

In *nix or linux-based Docker, you can

apt update
apt install chromedriver -y   #for debian-based systems 

Options needed for ChromeDriver

        ChromeDriverService chromeDriverService = new ChromeDriverService.Builder().withWhitelistedIps("").build();//without this you may see " bind() returned an error, errno=99: Cannot assign requested address (99) "

...
        // without the following you may see "DevToolsActivePort file doesn't exist" 
        ChromeOptions chromeOptions = new ChromeOptions();
        if(isUnixBased()) {
            chromeOptions.addArguments("--headless");
            chromeOptions.addArguments("--no-sandbox");
            chromeOptions.addArguments("--disable-dev-shm-usage");
        }

...
        ChromeDriver driver = new ChromeDriver(chromeDriverService, chromeOptions);