Docker.
Written in the Go programming language, it is the secret weapon for building, shipping, and running apps. An OS virtualization software initially released in 2013, Docker allows you to package your app and its dependencies into lightweight containers that can be run anywhere, regardless if you are using Windows, Mac, or Linux. After developing your app, in my case, a Python API, create a dockerfile. The dockerfile serves as instructions for the docker engine to build the docker image.
In the dockerfile reference a base image, run any required commands and copy over the necessary files. End the dockerfile with a command that will get your app up and running. For this example, I use a flask run command to get the API ready to receive requests.
Next, we need to build our docker image. A docker image represents the current version of our app with its dependencies whereas a docker container is a running docker image. Build the image with this command, referencing the dockerfile and giving the image a name. Finally, use the docker run command like this to create the container. This has been.
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