syntax = "proto3";

package yandex.cloud.k8s.v1;

import "google/protobuf/timestamp.proto";

import "yandex/cloud/validation.proto";

option go_package = "github.com/yandex-cloud/go-genproto/yandex/cloud/k8s/v1;k8s";
option java_package = "yandex.cloud.api.k8s.v1";

message Node {
  // Kubernetes node info 
  message KubernetesStatus {
    // Node id (and instance name)
    string id = 1;

    // Conditions is an array of current observed node conditions.
    // More info: https://kubernetes.io/docs/concepts/nodes/node/#condition
    repeated Condition conditions = 2;

    // If specified, the node's taints.
    repeated Taint taints = 3;

    // List of volumes that are attached to the node.
    repeated AttachedVolume attached_volumes = 4;
  }

  // Cloud instance info
  message CloudStatus {
    // Compute instance id
    string id = 1;

    // IG instance status
    string status = 2;

    // IG instance status message
    string status_message = 3;
  }

  // Computed node status.
  enum Status {
    STATUS_UNSPECIFIED = 0;
    // Node instance is not yet created (e.g. in progress).
    PROVISIONING = 1;
    // Node instance is created but not registered
    // (e.g. is still initializing).
    NOT_CONNECTED = 2;
    // Node has connected but is not ready for
    // workload (see conditions for details).
    NOT_READY = 3;
    // Node has connected and ready for workload.
    READY = 4;
    // Node is still registered but its instance
    // is deleted (this is our bug).
    MISSING = 5;
  }

  // Node specification.
  message Spec {
    // Node group specified resources.
    ResourcesSpec resources = 1;
    // Node group specified disk.
    DiskSpec disk = 2;
  }

  // Computed node status.
  Status status = 1;

  // Node specificaion.
  Spec spec = 2;

  // Cloud instance status.
  // Not available in `MISSING` status.
  CloudStatus cloud_status = 3;

  // Kubernetes node status.
  // Not available in `PROVISIONING` and `NOT_CONNECTED` states.
  KubernetesStatus kubernetes_status = 4;
}

message Condition {
  // Type of node condition.
  string type = 1;

  // Status is the status of the condition.
  string status = 2;

  // Human-readable message indicating details about last transition.
  string message = 3;

  // Last time we got an update on a given condition.
  google.protobuf.Timestamp last_heartbeat_time = 4;

  // Last time the condition transit from one status to another.
  google.protobuf.Timestamp last_transition_time = 5;
}

message Taint {
  enum Effect {
    EFFECT_UNSPECIFIED = 0;

	// Do not allow new pods to schedule onto the node unless they tolerate the taint,
	// but allow all pods submitted to Kubelet without going through the scheduler
	// to start, and allow all already-running pods to continue running.
    NO_SCHEDULE = 1;

	// Like NO_SCHEDULE, but the scheduler tries not to schedule
	// new pods onto the node, rather than prohibiting new pods from scheduling
	// onto the node entirely. Enforced by the scheduler.
    PREFER_NO_SCHEDULE = 2;

	// Evict any already-running pods that do not tolerate the taint.
    NO_EXECUTE = 3;
  }

  // The taint key to be applied to a node.
  string key = 1;

  // The taint value corresponding to the taint key.
  string value = 2;

  // The effect of the taint on pods that do not tolerate the taint.
  Effect effect = 3;
}

// AttachedVolume describes a volume attached to a node
message AttachedVolume {
  // Name of the driver which has attached the volume
  string driver_name = 1;

  // Volume handle (cloud disk id)
  string volume_handle = 2;
}

message NodeTemplate {
  // ID of the hardware platform configuration for the node.
  string platform_id = 1;

  // Computing resources of the node such as the amount of memory and number of cores.
  ResourcesSpec resources_spec = 2;

  // Specification for the boot disk that will be attached to the node.
  DiskSpec boot_disk_spec = 3;

  // The metadata as `key:value` pairs assigned to this instance template. This includes custom metadata and predefined keys.
  //
  // For example, you may use the metadata in order to provide your public SSH key to the node.
  // For more information, see [Metadata](/docs/compute/concepts/vm-metadata).
  map<string, string> metadata = 4 [(size) = "<=64", (length) = "<=131072", (map_key).length = "1-63", (map_key).pattern = "[a-z][-_0-9a-z]*"];

  // Specification for the create network interfaces for the node group compute instances.
  // Deprecated, please use network_interface_specs.
  NodeAddressSpec v4_address_spec = 5 [deprecated=true];

  // Scheduling policy configuration.
  SchedulingPolicy scheduling_policy = 6;

  // New api, to specify network interfaces for the node group compute instances.
  // Can not be used together with 'v4_address_spec'
  repeated NetworkInterfaceSpec network_interface_specs = 7;

  PlacementPolicy placement_policy = 10;

  message NetworkSettings {
    enum Type {
      TYPE_UNSPECIFIED = 0;
      STANDARD = 1;
      SOFTWARE_ACCELERATED = 2;
      // unsupported yet, commented for possible future utilization.
      //HARDWARE_ACCELERATED = 3;
    }

    Type type = 1 [(required) = true];
  }

  // this parameter allows to specify type of network acceleration used on nodes (instances)
  NetworkSettings network_settings = 11;
}

message NetworkInterfaceSpec {
  // IDs of the subnets.
  repeated string subnet_ids = 2;

  // Primary IPv4 address that is assigned to the instance for this network interface.
  NodeAddressSpec primary_v4_address_spec = 3;

  // Primary IPv6 address that is assigned to the instance for this network interface.
  NodeAddressSpec primary_v6_address_spec = 4;

  // IDs of security groups.
  repeated string security_group_ids = 5;
}

message NodeAddressSpec {
  // One-to-one NAT configuration. Setting up one-to-one NAT ensures that public IP addresses are assigned to nodes, and therefore internet is accessible for all nodes of the node group. If the field is not set, NAT will not be set up.
  OneToOneNatSpec one_to_one_nat_spec = 1;
}

message OneToOneNatSpec {
  // IP version for the public IP address.
  IpVersion ip_version = 1;
}

enum IpVersion {
  IP_VERSION_UNSPECIFIED = 0;

  // IPv4 address, for example 192.168.0.0.
  IPV4 = 1;

  // IPv6 address, not available yet.
  IPV6 = 2;
}

message ResourcesSpec {
  // Amount of memory available to the node, specified in bytes.
  int64 memory = 1 [(value) = ">=0"];

  // Number of cores available to the node.
  int64 cores = 2 [(value) = ">=0"];

  // Baseline level of CPU performance with the possibility to burst performance above that baseline level.
  // This field sets baseline performance for each core.
  int64 core_fraction = 3 [(value) = "0-100"];

  // Number of GPUs available to the node.
  int64 gpus          = 4 [(value) = ">=0"];
}

message DiskSpec {
  // ID of the disk type.
  string disk_type_id = 1 [(pattern) = "|network-ssd|network-hdd|network-ssd-nonreplicated"];

  // Size of the disk, specified in bytes.
  int64 disk_size = 2 [(value) = "0-4398046511104"];
}

message SchedulingPolicy {
  // True for preemptible compute instances. Default value is false. Preemptible compute instances are stopped at least once every 24 hours, and can be stopped at any time
  // if their resources are needed by Compute.
  // For more information, see [Preemptible Virtual Machines](/docs/compute/concepts/preemptible-vm).
  bool preemptible = 1;
}

message PlacementPolicy {
  // Identifier of placement group
  string placement_group_id = 1;
}