Docker
Get introduced to containers, writing a dockerfile, and building and running an image.
Containers
Docker, and other platform-as-a-service tools, provide a virtualization concept called containers. Containers run on top of a host operating system, but provide a standardized environment for code running within the container. One of the key goals of this virtualization approach is that you can write code for a target environment, and any system running Docker can run your container.
Benefits of containers
The benefits of containers include:
- Lightweight alternative to virtual machines, which provide similar functionality.
- Faster to spin up, while providing the same level of isolation as virtual machines.
- Can re-use layers from other containers, making it much faster to build and share containers.
- Great solution to use when you need to run conflicting versions of Python runtimes or libraries, on a single machine.
What is a Dockerfile?
With Docker, you author a file called a Dockerfile that is used to define the dependencies for a container. The result of building the Dockerfile is a Docker Image, which packages all of the runtimes, libraries, and code needed to run an app. A Docker Container is an ...
