Docker + Docker-compose + Selenium + Python

This is a simple example of how to use Docker, Docker-compose and Selenium together to run a simple Python script.

In this case, we can use three different ways to run the script:

1. Native
2. Dockerfile
3. Docker-compose with Simulated Web Driver

Native

To run the script natively, we can use the next commands.

1. You need to install Chrome or Firefox.

2. Start the workspace.

   virtualenv venv
   source venv/bin/activate

3. Edit the file .env to the workspace.

   As example, can be source/.env

   ENVIRONMENT=local
   #ENVIRONMENT=docker
   #ENVIRONMENT=remote
   
   PATH_ASSETS=assets
   
   #BROWSER=chrome
   #EXTENSIONS_CHROME=["metamask"]
   
   BROWSER=firefox
   EXTENSIONS_FIREFOX=["metamask", "captcha"]
   
   REMOTE_URL=http://selenium-hub:4444/wd/hub
   #REMOTE_URL=http://0.0.0.0:4444/wd/hub
   #REMOTE_URL=http://localhost:4444/wd/hub
   
   METAMASK_AUTH=["SECRET", "A B C D E F G H I J K L"]

4. Inside to the folder source

   cd source 

5. Install the dependencies.

   python -m pip install --upgrade pip
   pip install -r requirements.txt

6. Execute the script.

   python main.py

7. Stop the workspace.

   deactivate

Dockerfile

1. Edit the file .env to the workspace.

   As example, can be source/.env

   #ENVIRONMENT=local
   ENVIRONMENT=docker
   #ENVIRONMENT=remote
   
   PATH_ASSETS=assets
   
   BROWSER=chrome
   EXTENSIONS_CHROME=["metamask", "captcha"]
   
   #BROWSER=firefox
   #EXTENSIONS_FIREFOX=["metamask"]
   
   REMOTE_URL=http://selenium-hub:4444/wd/hub
   #REMOTE_URL=http://0.0.0.0:4444/wd/hub
   #REMOTE_URL=http://localhost:4444/wd/hub
   
   METAMASK_AUTH=["SECRET", "A B C D E F G H I J K L"]
   

2. Build the Docker image.

   docker build -f docker/single/Dockerfile -t selenium-python-docker .

3. Run the Docker image.

   docker run -it --rm -v $(pwd)/source:/usr/src/app -w /usr/src/app --env-file=.env selenium-python-docker

Docker-compose

1. Edit the file .env to the workspace.

   As example, can be source/.env

   #ENVIRONMENT=local
   #ENVIRONMENT=docker
   ENVIRONMENT=remote
   
   PATH_ASSETS=assets
   
   BROWSER=chrome
   EXTENSIONS_CHROME=["metamask"]
   
   #BROWSER=firefox
   #EXTENSIONS_FIREFOX=["metamask"]
   
   REMOTE_URL=http://selenium-hub:4444/wd/hub
   #REMOTE_URL=http://0.0.0.0:4444/wd/hub
   #REMOTE_URL=http://localhost:4444/wd/hub
   
   METAMASK_AUTH=["SECRET", "A B C D E F G H I J K L"]
   

2. Build the Docker image.

   docker-compose build

3. Up the Docker image.

   docker-compose up

4. Execute the script in docker service.

   docker-compose exec -it app bash

   Or execute the script in the container.

   docker exec -it $(docker ps | grep app | awk '{print $1}') bash
   # python main.py

5. In the localhost:4000, you can see the result in session, note: the password of session vnc is secret

6. Stop the Docker image.

   docker-compose down