Surprise countdown

This is a web application for revealing a surprise at a given time.

Two pages are served:

1. / - The index page polls the backend every second and displays the image asset corresponding to the state of the surprise with a countdown if applicable.
2. /set-surprise - Select and POST the surprise to the backend (password protected).

The surprise can have the following states:

• _null - The surprise is not set.
• _secret - The surprise is set but not yet revealed.
• <value> - The surprise is set and revealed.

Configuration

Environment variables:

• SURPRISE_TITLE - Page title
• SURPRISE_STORE_FILE - File name to store surprise value.
• SURPRISE_SECRET - Password for setting the surprise.
• SURPRISE_ASSET_DIR - Directory of image assets that corresponds to surprise state/values. The set of possible surprise values are parsed from the basename of the asset files. The _null and _secret states may be overridden.
• SURPRISE_REVEAL_DATETIME - Datetime for reveal.

Build

$ docker build -t surprise-countdown .

Run gender reveal example

$ docker run -e SURPRISE_SECRET=hunter2 -p 5000:5000 -v $(pwd)/surprise-assets/gender-reveal:/assets:ro surprise-countdown

Then browse to localhost:5000.