pub const BIND_API_TOKEN_ENV: &str = "BIND_API_TOKEN";Expand description
Environment variable holding a shared API token.
When set to a non-empty value, every request’s Bearer token is compared
against it in constant time. This provides real authentication for
deployments that do not use the Kubernetes TokenReview API (drone mode,
bare-metal, local testing), closing the “presence-only” gap (B-4) where any
non-empty token was accepted.