Struct MaintenanceLayer 

pub struct MaintenanceLayer;

Middleware that returns 503 when MAINTENANCE_MODE is true.

Health probe paths (/healthz, /readyz) always pass through so that load balancers can still detect the pod is alive.

Trait Implementations

impl Middleware for MaintenanceLayer

fn accepts_streamed_body( &self, _request: &Request, _connection: &ConnectionInfo, ) -> bool

Headers only: a streamed body passes through untouched.

fn runs_inline(&self, _request: &Request, _connection: &ConnectionInfo) -> bool

In-memory only: safe on the event loop.

fn is_passthrough( &self, _request: &Request, _connection: &ConnectionInfo, ) -> bool

Off, it does nothing: config-driven proxy routes keep their non-blocking forwarder (since 18.10.0, when the binary added this layer to proxy mode for the admin API’s maintenance switch).

fn handle( &self, request: &Request, connection: &ConnectionInfo, next: &dyn Application, ) -> Result<Response, String>

fn answers_streamed_body( &self, _request: &Request, _connection: &ConnectionInfo, ) -> bool

true when this layer answers request itself — it doesn’t call next — and reads its body as a stream (a proxy forwarding it as it arrives). The body is then streamed whatever the layers after it and the application would say. Requires accepts_streamed_body. Since 18.3.0.