✨ Support for secrets in one environment variable

[smoliji]

Is your feature request related to a problem?

No.

What feature would you like to see?

I'd like to use CFG_JSON_PATH for both file path and secrets contents directly and interchangeably.

CFG_JSON_PATH=/path/to/file

or

CFG_JSON_PATH=the_secrets_themselves

What alternatives have you considered?

None.

Additional context

Coming from Google Cloud environment, it is common for a configuration variables for secrets to contain one of either a) path to a file where secret is stored, b) the secret it self.

Configuru already has A, I'd like to see B too.

Cloud Run secrets can be injected to env var directly.

Google lib google-auth-library and its GOOGLE_APPLICATION_CREDENTIALS supports the same pattern.

Benefits:

• One can run app with latest secrets without storing them locally, e.g. with CFG_JSON_PATH=$(gcloud secrets versions access latest --project=boxnow-development --secret=boxnow_customer_app_development_dotenv-api) npm start
• Configuru-powered apps would be 100% compatible with secrets injection on GCP