Environment Variables
Introduction
What is an environment variable?
An environment variable (env var) is a key-value pair that stores information about the environment in which a process runs.
Env vars can be used to control the behavior of a program if that program expects its configuration to be set via environment variables.
Be aware that env vars are case-sensitive, so the env var MY_VAR is different from the env var
my_var.
Environment variables in Linux
Environment variables in Docker
Environment variables in Kubernetes
Real-world scenarios
Where can I practice using environment variables in real-world scenarios?
You can apply what you've just learned in these interactive scenarios: