Method instance_port_policy

gateway/src/main_service.rs:957–962

Lookup the effective port_policy for an instance: admin override wins, otherwise fall back to the instance-reported policy. `None` means neither is set — caller fails closed and may schedule a lazy fetch.

(&self, instance_id: &str)

    /// otherwise fall back to the instance-reported policy. `None` means
    /// neither is set — caller fails closed and may schedule a lazy fetch.
    pub(crate) fn instance_port_policy(&self, instance_id: &str) -> Option<&PortPolicy> {
        let info = self.state.instances.get(instance_id)?;
        info.admin_port_policy
            .as_ref()
            .or(info.port_policy.as_ref())
    }

    /// Update an instance's port_policy (used after a lazy fetch via Info()).
    /// Persists to the WaveKV store so other gateway nodes pick it up.