Added support for custom path for .env file

[Gaardsholt]

No description provided.

[karpikpl]

Hey @Gaardsholt is that change for local development ?
I don't really see a point of changing the path for the .env file, as it's not supposed be copied into the container but is used as a source of environment variables

so in your example:

Or with custom path for your .env file:

docker run -it --rm -p 8080:3000 \
-e DOTENV_CONFIG_PATH=/custom/.env \
-v /path/to/your/.env:/custom/.env \
copilot-metrics-viewer-with-proxy

that could be done by:

docker run -it --rm -p 8080:3000 \
--env-file /custom/.env \
copilot-metrics-viewer-with-proxy

[Gaardsholt]

It's because we get all of our secrets from an external system, so in order to get the environment variables when running in Kubernetes we have to do it like this