Allow configuration of DB_HOST, DB_PASS, DB_USER, DB_NAME separately.

[kminehart]

We're having an issue with the helm chart right now, https://github.com/kubernetes/charts/pull/1022/files#r119681171

With Kubernetes, ideally passwords would be stored as secrets. The problem with using the database URL as the only configurable option means the database password has to be stored in Kubernetes as a value in the deployment, rather than as a secret to be encrypted.*

• yes I know Kubernetes secrets are in plain text at the moment. That won't be the case forever.

[meyerzinn]

@kminehart I don't see why this couldn't be done with the URL right now. If you set these as secrets, then you can interpolate them into the URL (i.e. DATABASE_URL=postgres://${DB_USER}:${DB_PASS}...). If the secrets are added as environmental variables, they could in turn be used to configure another environmental variable.

[aeneasr]

I agree with @20zinnm

[meyerzinn]

@arekkas I would consider this closed.

[kminehart]

That's true, I had not considered that. Thanks!