Crate zlayer_provisioner 

Provider-agnostic cloud node provisioning for ZLayer autoscaling.

This crate defines the CloudProvisioner trait and the value types used to request and describe worker nodes that join a ZLayer cluster. The trait plus the core value types depend only on async-trait, serde, and thiserror, so a downstream consumer (for example a ZataCloudDeploy backend) can implement the trait against its own cloud SDK without pulling in the reference implementation’s runtime dependencies.

The built-in CloudInitProvisioner (behind the default cloud-init feature) is a provider-agnostic implementation that shells out to operator-supplied commands and feeds each node a cloud-init #cloud-config that runs zlayer node join on boot. It requires no cloud SDK.

Identifiers

ProviderNodeId is the provider-scoped identifier for a node (for example an EC2 instance id or an opaque token printed by a provisioning script). It is deliberately distinct from the raft layer’s numeric node id.

Re-exports

pub use cloud_init::CloudInitConfig;

pub use cloud_init::CloudInitProvisioner;

Modules

cloud_init

Provider-agnostic cloud-init reference provisioner.

Structs

NodeHandle

A handle to a provisioned (or in-flight) node.

NodeShape

Desired shape of a node to provision.

PriceHint

A best-effort price estimate for a given shape.

Enums

CapacityType

Whether a node is billed as standard on-demand capacity or as interruptible spot/preemptible capacity.

JoinState

Lifecycle state of a provisioned node as it works toward cluster membership.

ProvisionerError

Errors returned by a CloudProvisioner.

Traits

CloudProvisioner

A pluggable backend that can create, destroy, and enumerate ZLayer nodes.

Type Aliases

ProviderNodeId

Provider-scoped node identifier.

Result

Convenience result alias for provisioner operations.