Docker Python Application Example

To run python application in docker, we need to create Dockerfile. This application involves the following steps.

1. Create a directory.
$ cmd docker-python-app
2. Enter into Directory
3. Create Dockerfile

It is require to create Docker image. It contains instructions that are read by Docker.

// Dockerfile
FROM python COPY . /src CMD ["python", "/src/index.py"]
4. Create a Python file

Create a python file to execute in the Docker container.

// index.py

print("Hello from python file");
5. Create Docker Image

To create Docker image of this python application, we need to use the following Docker command.

$ docker build -t python-app .
6. Check the available Docker images

We can see all the available Docker images by the following command.

$ docker images
7. Run Docker

After creating docker image, now we can run it by using the following command.

$ docker run python-app

The above command runs the Docker images and executes the python file. After executing, it produces the output which is shown in the above image.