Clarification on Global Environment Variables in 3.1-beta

Based on the Release Notes for 3.1-beta in terms of using the environment variables with tools like docker, if I start a container with -e SOME_DB_PASS=mypass will this environment variable be available to me in the flows or nodes?

I generally use such environment variables only to setup the user credentials which are inherently resolved in the settings.js file using process.env