Interpolation/templating

Configuration is interpreted via Configly, which enables the ability to load dynamic config values through the environment or other interpolation methods.

For example, loading the url/secrets from the environment.

# required
url: <% ENV[POSTGRES_URL] %>

# optional
url: <% ENV[POSTGRES_URL, 'default string'] %>

Value Templating

Additionally, certain values use python’s string format sub-language for allowing the reference of context-specific state.

The following format specifiers have been implemented for referencing non-static data in config:

Name	Example	Description
table	query: select * from {table}	Templates the referenced table name into “query”’s value
ref	location: {ref.backup.tables[public.*].location}	Templates the value retrieved by following the config traversal from backup -> tables -> public.* -> location into “location”’s value

This feature is probably most useful when using Globbing, as exemplified above, for referencing the current table.