refactor Dockerfile and update example

Dockerfile

@@ -1,11 +1,12 @@
 FROM ubuntu:focal
 
-RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get install --no-install-recommends -y \
     python3 python3-pip \
     fonts-liberation libappindicator3-1 libasound2 libatk-bridge2.0-0 \
-    libnspr4 libnss3 lsb-release xdg-utils libxss1 libdbus-glib-1-2 \
+    libnspr4 libnss3 lsb-release xdg-utils libxss1 libdbus-glib-1-2 libgbm1 \
     curl unzip wget \
-    xvfb libgbm1
+    xvfb
 
 
 # install geckodriver and firefox
@@ -25,7 +26,7 @@ RUN FIREFOX_SETUP=firefox-setup.tar.bz2 && \
 
 
 # install chromedriver and google-chrome
-RUN apt install libgbm1  -y
+
 RUN CHROMEDRIVER_VERSION=`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE` && \
     wget https://chromedriver.storage.googleapis.com/$CHROMEDRIVER_VERSION/chromedriver_linux64.zip && \
     unzip chromedriver_linux64.zip -d /usr/bin && \
@@ -47,8 +48,7 @@ RUN wget https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-2.1.1-linux-x
     rm phantomjs-2.1.1-linux-x86_64.tar.bz2
 
 
-RUN pip3 install selenium
-RUN pip3 install pyvirtualdisplay
+RUN pip3 install selenium==3.141.0 pyvirtualdisplay==2.2
 
 ENV LANG C.UTF-8
 ENV LC_ALL C.UTF-8

example.py

@@ -3,6 +3,7 @@
 
 from pyvirtualdisplay import Display
 from selenium import webdriver
+from selenium.webdriver import firefox
 
 logging.getLogger().setLevel(logging.INFO)
 
@@ -23,7 +24,7 @@ def chrome_example():
     })
     logging.info('Prepared chrome options..')
 
-    browser = webdriver.Chrome(chrome_options=chrome_options)
+    browser = webdriver.Chrome(options=chrome_options)
     logging.info('Initialized chrome browser..')
 
     browser.get(BASE_URL)
@@ -40,15 +41,19 @@ def firefox_example():
     display.start()
     logging.info('Initialized virtual display..')
 
-    firefox_profile = webdriver.FirefoxProfile()
-    firefox_profile.set_preference('browser.download.folderList', 2)
-    firefox_profile.set_preference('browser.download.manager.showWhenStarting', False)
-    firefox_profile.set_preference('browser.download.dir', os.getcwd())
-    firefox_profile.set_preference('browser.helperApps.neverAsk.saveToDisk', 'text/csv')
+    firefox_options = firefox.options.Options()
+    firefox_options.set_preference('browser.download.folderList', 2)
+    firefox_options.set_preference(
+        'browser.download.manager.showWhenStarting', False
+    )
+    firefox_options.set_preference('browser.download.dir', os.getcwd())
+    firefox_options.set_preference(
+        'browser.helperApps.neverAsk.saveToDisk', 'text/csv'
+    )
 
     logging.info('Prepared firefox profile..')
 
-    browser = webdriver.Firefox(firefox_profile=firefox_profile)
+    browser = webdriver.Firefox(options=firefox_options)
     logging.info('Initialized firefox browser..')
 
     browser.get(BASE_URL)
@@ -77,8 +82,6 @@ def phantomjs_example():
     display.stop()
 
 
-
-
 if __name__ == '__main__':
     chrome_example()
     firefox_example()