Accepted pull request for Docker’s documentation and Medium post about issue

Recently I had an issue with Docker Compose startup order. PostgreSQL was running after Django’s web container so it was impossible to make proper connection especially while first run. The solution is to write some script which will check status of PostgreSQL before running web worker. I found initial version of it on Docker’s web site:

But it was not working without postgres’ password. After a little research I came up with following update. You need to add PGPASSWORD=$POSTGRES_PASSWORD env variable before calling psql command.

After few additional steps (you can read about them on my medium post) it now works just fine.

I did pull request with regarding changes to Docker’s documentation and it is accepted.

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