To manage config vars, you must be a Team Admin. If you're a Team Admin, you can manage them from the Settings section of the app.
Config vars have a name and an associated string value. Config vars can be secret, in which case the value can be set but will not be exposed to users from the UI. All config vars on Airplane are stored encrypted at rest.
Config var names are flexible, but we recommend the following conventions:
db: for simple names use lowercase, one word
eng/platform/db: use slashes to group your config vars together
db:stage: use a colon to append a tag to your config var name - use tags for different variants of a config var (e.g. staging/production). Tags don't have special behavior currently but may get extra features in the future.
To use a config, you can reference it when configuring environment variables on a task.
Expand the Advanced section, and find the Environment Variables section. Choose "From config variable" to assign a config var's value to the specified environment variable: