Mastering Kubernetes - Second Edition

Using Python subprocess to run Kubectl

I'll use Python again, so you can compare using the official Python client with rolling your own. Python has a module called subprocess that can run external processes such as Kubectl and capture the output. Here is a Python 3 example running Kubectl on its own and displaying the beginning of the usage output:

>>> import subprocess
>>> out = subprocess.check_output('kubectl').decode('utf-8')
>>> print(out[:276])  

Kubectl controls the Kubernetes cluster manager. Find more information at https://github.com/kubernetes/kubernetes.

Here are some basic commands for beginners:

• create: Create a resource using the filename or stdin
• expose: Take a replication controller, service, deployment, or pod

The check_checkout() ...