Hi Prefectionists prefect duck Is it possible to reference an environment variable in the

config.toml

? Specific example, using an external Postgres db, and adding its connection URL in the

config.toml

under

[server.database]

. It’d be good to keep the URL a secret, but still version control the file. Or perhaps there’s a different way of configuring this, instead of adding it in the

.toml

file? Thanks in advance 🙌

You can configure the env var directly to override the toml. Like

export PREFECT__SERVER__DATABASE=...

but I don’t think the toml file format can read an env var.

In Prefect 1.0 we actually added custom interpolation to the toml file so you can both reference env variables and other config settings. See: https://docs.prefect.io/core/concepts/configuration.html#extensions

Wow that’s news to me. Ignore what I said.

Thank you both!! 🙌 This is a pretty nice feature in 1.0 🚀