This tutorial will explore containerization and how Docker, Docker Compose, and Kubernetes can help you streamline your Python application development and deployment workflows.
In Up and Running with Docker, we build a simple Docker container.
In Microservices with Docker Compose, we will learn how to use Docker Compose to network multiple Docker containers.
In Scaling with Kubernetes, we will make our application scalable by deploying it to Kubernetes.
This introduction only assumes familiarity with Python, although it would also help to understand at least one Python web framework. In this tutorial, we utilize FastAPI.
Microservices with Docker Compose coming soon!
Scaling with Kubernetes coming soon!
Docker is a container runtime used to build images and deploy containers. We will be using it extensively throughout this series to perform container operations.
Note that Docker Desktop also comes installed with Kubernetes, so this install takes care of both dependencies!
Navigate to the Docker website and download the Docker Desktop installer for your Mac or Windows operating system.
Once the download finishes, click the installer to install Docker Desktop Community Edition on your machine.
To ensure Docker is installed correctly, open a terminal window and run `docker run hello-world. If it is successful, you should get the following output:
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
<https://hub.docker.com/>
For more examples and ideas, visit:
<https://docs.docker.com/get-started/>
Microservices with Docker Compose