Method drop_replica

src/compute-client/src/controller.rs:754–773

Removes a replica from an instance, including its service in the orchestrator.

(
        &mut self,
        instance_id: ComputeInstanceId,
        replica_id: ReplicaId,
    )

    /// Removes a replica from an instance, including its service in the orchestrator.
    pub fn drop_replica(
        &mut self,
        instance_id: ComputeInstanceId,
        replica_id: ReplicaId,
    ) -> Result<(), ReplicaDropError> {
        use ReplicaDropError::*;

        let instance = self.instance_mut(instance_id)?;

        // Validation
        if !instance.replicas.contains(&replica_id) {
            return Err(ReplicaMissing(replica_id));
        }

        instance.replicas.remove(&replica_id);

        instance.call(move |i| i.remove_replica(replica_id).expect("validated"));

        Ok(())
    }

    /// Creates the described dataflow and initializes state for its output.
    ///