.env file breaks with latest docker

[k1sul1]

I'm using Arch, so I'm always using the latest versions of everything. Last week, after updating, all of my projects using this stopped working.

After a brief debugging session, I found this: docker/compose#6511

Apparently, using export in .env files was never supported by Docker, and now it's broken. The fix seemed self-explanatory, remove all occurrences of export from the .env file, which allowed the containers to boot.

After that I was stuck in this screen:

I did some more debugging, and found out that parse_url fails in config/wp-config.php, because the value it tried to parse looked like this: mysql://wordpress:password@$DATABASE_HOST:$DATABASE_PORT/wordpress

I'm guessing replace stopped working after removing the exports from the .env file. I got everything running again by rewriting the DATABASE_URL & REDIS_URL variables to these:

DATABASE_URL=mysql://wordpress:password@mysql:3306/wordpress
REDIS_URL=redis://redis:6379

[HansUXdev]

oh so this is why it worked fine in local development and errors out when you deploy to heroku?