How do I debug environment variables in my application?

I'm having trouble with my application not picking up the environment variables. What should I do?

First, ensure that your environment variables are correctly set. You can check this by running printenv in your terminal.

I checked, and they seem to be set correctly. What else could be wrong?

Make sure your application is running in the same environment where the variables are set. Sometimes, IDEs or containers may not inherit them.

I'm using Docker. How can I pass environment variables to my container?

You can pass environment variables to your Docker container using the -e flag in your docker run command, like this: docker run -e VAR_NAME=value your_image.