configenv

Overview ¶

Package configenv expands ${VAR} and ${VAR:-default} placeholders in a configuration document before it is parsed.

It is its own package rather than a corner of pkg/platform because the substitution rule is a contract two audiences depend on -- every shipped config writes against it, and every operator reads a failure through it -- and because pkg/platform is at its size budget: a package that must not grow is not where a self-contained rule belongs.