Struct MetricsConfig 

pub struct MetricsConfig {
    pub enabled: bool,
    pub listen: SocketAddr,
}

Prometheus /metrics exposition. OPEN baseline (BOUNDARY.md §1.6). Served on a SEPARATE loopback listener — never the data port, which would let the WAF inspect/expose its own internal posture (blocked/rate-limited volumes are an info leak if reachable).

Fields

enabled: bool

Off by default → no metrics listener is bound.

listen: SocketAddr

Where to serve /metrics. Default loopback (127.0.0.1:9090), never 0.0.0.0.

Trait Implementations

impl Clone for MetricsConfig

fn clone(&self) -> MetricsConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MetricsConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MetricsConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetricsConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.