get-docker-secret is a small library to simplify getting secrets from docker.
This library accepts a name and looks for a file or env for the token.
If given TOKEN as the name, it will first look for an env called TOKEN_FILE.
If this env exists, it will return the content of the file.
If it doesn't exist, it will check for an env called TOKEN, and return it if it does.
To use this with swarm and docker secret, add the path to the secret as an environment variable.
An example would be TOKEN_FILE=/run/secrets/token.
npm install --save get-docker-secret
const getDockerSecret = require('get-docker-secret');
const secret = getDockerSecret('SECRET', 'default value');