This app can be used in scenarios where you need multiple website instances that do nothing, but look different. This app displays a web page with a message in the center of the page. The colors (background and foreground) and the message are configurable through environment variables.

The colors can be provided as names (red, green) or as HEX values (#FF0000, #00ff00).

Command	Rendered Page
node app.js
FG_COLOR=blue BG_COLOR=lightgreen node app.js
MESSAGE="Hello world!" FG_COLOR="#f3f4f6" BG_COLOR="#2563eb" node app.js

You can also run the application as a Docker container. You can pull the image from pj3677/color-app:1.0.0.

Example usage:

docker run --env FG_COLOR="blue" -p 3000:3000 pj3677/color-app:1.0.0