Simple redis url does not work

[alexandru-calinoiu]

Running a js app inside a container,

In deploy.js I have the following simple config

  ENV.redis = {
    url: process.env['REDIS_URL']
  }

The url in the env is REDIS_URL=redis://redis:6379/0

Apparently it will fail to parse as it will still try to connect to localhost (the default host).

To work around it I need to do the parsing myself:

  const { URL } = require('url');
  const redisURL = new URL(process.env['REDIS_URL'])

  ENV.redis = {
    host: redisURL.hostname,
    port: redisURL.port,
    username: redisURL.username,
    password: redisURL.password
  };

It will be ideal to have the parsing done by this library.

[lukemelia]

Thanks for the report @alexandru-calinoiu.

For you or anyone else who would like to investigate, the URL is parsed by the underlying redis client, ioredis.

We do have some code in this plugin that attempts to remove any username from the URL before passing it along. This was added to support how heroku exposes its redis URLs, IIRC. That code could be the culprit.

[alexandru-calinoiu]

Got it, opened an issue with them, will leave this open and eventually advise to update the dependency on ioredis if they fix the issue.