container/v1alpha1/cluster_service.proto

// Copyright 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package google.container.v1alpha1;

import "google/api/annotations.proto";
import "google/protobuf/empty.proto";

option go_package = "google.golang.org/genproto/googleapis/container/v1alpha1;container";
option java_multiple_files = true;
option java_outer_classname = "ClusterServiceProto";
option java_package = "com.google.container.v1alpha1";
option csharp_namespace = "Google.Cloud.Container.V1Alpha1";
option php_namespace = "Google\\Cloud\\Container\\V1alpha1";


// Google Container Engine Cluster Manager v1alpha1
service ClusterManager {
  // Lists all clusters owned by a project in either the specified zone or all
  // zones.
  rpc ListClusters(ListClustersRequest) returns (ListClustersResponse) {
    option (google.api.http) = { get: "/v1alpha1/{parent=projects/*/locations/*}/clusters" };
  }

  // Gets the details of a specific cluster.
  rpc GetCluster(GetClusterRequest) returns (Cluster) {
    option (google.api.http) = { get: "/v1alpha1/{name=projects/*/locations/*/clusters/*}" };
  }

  // Creates a cluster, consisting of the specified number and type of Google
  // Compute Engine instances.
  //
  // By default, the cluster is created in the project's
  // [default network](/compute/docs/networks-and-firewalls#networks).
  //
  // One firewall is added for the cluster. After cluster creation,
  // the cluster creates routes for each node to allow the containers
  // on that node to communicate with all other instances in the
  // cluster.
  //
  // Finally, an entry is added to the project's global metadata indicating
  // which CIDR range is being used by the cluster.
  rpc CreateCluster(CreateClusterRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{parent=projects/*/locations/*}/clusters" body: "*" };
  }

  // Updates the settings of a specific cluster.
  rpc UpdateCluster(UpdateClusterRequest) returns (Operation) {
    option (google.api.http) = { put: "/v1alpha1/{name=projects/*/locations/*/clusters/*}" body: "*" };
  }

  // Updates the version and/or iamge type of a specific node pool.
  rpc UpdateNodePool(UpdateNodePoolRequest) returns (Operation) {
    option (google.api.http) = { put: "/v1alpha1/{name=projects/*/locations/*/clusters/*/nodePools/*}" body: "*" };
  }

  // Sets the autoscaling settings of a specific node pool.
  rpc SetNodePoolAutoscaling(SetNodePoolAutoscalingRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*/nodePools/*}:setAutoscaling" body: "*" };
  }

  // Sets the logging service of a specific cluster.
  rpc SetLoggingService(SetLoggingServiceRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:setLogging" body: "*" };
  }

  // Sets the monitoring service of a specific cluster.
  rpc SetMonitoringService(SetMonitoringServiceRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:setMonitoring" body: "*" };
  }

  // Sets the addons of a specific cluster.
  rpc SetAddonsConfig(SetAddonsConfigRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:setAddons" body: "*" };
  }

  // Sets the locations of a specific cluster.
  rpc SetLocations(SetLocationsRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:setLocations" body: "*" };
  }

  // Updates the master of a specific cluster.
  rpc UpdateMaster(UpdateMasterRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:updateMaster" body: "*" };
  }

  // Used to set master auth materials. Currently supports :-
  // Changing the admin password of a specific cluster.
  // This can be either via password generation or explicitly set.
  // Modify basic_auth.csv and reset the K8S API server.
  rpc SetMasterAuth(SetMasterAuthRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:setMasterAuth" body: "*" };
  }

  // Deletes the cluster, including the Kubernetes endpoint and all worker
  // nodes.
  //
  // Firewalls and routes that were configured during cluster creation
  // are also deleted.
  //
  // Other Google Compute Engine resources that might be in use by the cluster
  // (e.g. load balancer resources) will not be deleted if they weren't present
  // at the initial create time.
  rpc DeleteCluster(DeleteClusterRequest) returns (Operation) {
    option (google.api.http) = { delete: "/v1alpha1/{name=projects/*/locations/*/clusters/*}" };
  }

  // Lists all operations in a project in a specific zone or all zones.
  rpc ListOperations(ListOperationsRequest) returns (ListOperationsResponse) {
    option (google.api.http) = { get: "/v1alpha1/{parent=projects/*/locations/*}/operations" };
  }

  // Gets the specified operation.
  rpc GetOperation(GetOperationRequest) returns (Operation) {
    option (google.api.http) = { get: "/v1alpha1/{name=projects/*/locations/*/operations/*}" };
  }

  // Cancels the specified operation.
  rpc CancelOperation(CancelOperationRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/operations/*}:cancel" body: "*" };
  }

  // Returns configuration info about the Container Engine service.
  rpc GetServerConfig(GetServerConfigRequest) returns (ServerConfig) {
    option (google.api.http) = { get: "/v1alpha1/{name=projects/*/locations/*}/serverConfig" };
  }

  // Lists the node pools for a cluster.
  rpc ListNodePools(ListNodePoolsRequest) returns (ListNodePoolsResponse) {
    option (google.api.http) = { get: "/v1alpha1/{parent=projects/*/locations/*/clusters/*}/nodePools" };
  }

  // Retrieves the node pool requested.
  rpc GetNodePool(GetNodePoolRequest) returns (NodePool) {
    option (google.api.http) = { get: "/v1alpha1/{name=projects/*/locations/*/clusters/*/nodePools/*}" };
  }

  // Creates a node pool for a cluster.
  rpc CreateNodePool(CreateNodePoolRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{parent=projects/*/locations/*/clusters/*}/nodePools" body: "*" };
  }

  // Deletes a node pool from a cluster.
  rpc DeleteNodePool(DeleteNodePoolRequest) returns (Operation) {
    option (google.api.http) = { delete: "/v1alpha1/{name=projects/*/locations/*/clusters/*/nodePools/*}" };
  }

  // Roll back the previously Aborted or Failed NodePool upgrade.
  // This will be an no-op if the last upgrade successfully completed.
  rpc RollbackNodePoolUpgrade(RollbackNodePoolUpgradeRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*/nodePools/*}:rollback" body: "*" };
  }

  // Sets the NodeManagement options for a node pool.
  rpc SetNodePoolManagement(SetNodePoolManagementRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*/nodePools/*}:setManagement" body: "*" };
  }

  // Sets labels on a cluster.
  rpc SetLabels(SetLabelsRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:setResourceLabels" body: "*" };
  }

  // Enables or disables the ABAC authorization mechanism on a cluster.
  rpc SetLegacyAbac(SetLegacyAbacRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:setLegacyAbac" body: "*" };
  }

  // Start master IP rotation.
  rpc StartIPRotation(StartIPRotationRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:startIpRotation" body: "*" };
  }

  // Completes master IP rotation.
  rpc CompleteIPRotation(CompleteIPRotationRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:completeIpRotation" body: "*" };
  }

  // Sets the size of a specific node pool.
  rpc SetNodePoolSize(SetNodePoolSizeRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*/nodePools/*}:setSize" body: "*" };
  }

  // Enables/Disables Network Policy for a cluster.
  rpc SetNetworkPolicy(SetNetworkPolicyRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:setNetworkPolicy" body: "*" };
  }

  // Sets the maintenance policy for a cluster.
  rpc SetMaintenancePolicy(SetMaintenancePolicyRequest) returns (Operation) {
    option (google.api.http) = { post: "/v1alpha1/{name=projects/*/locations/*/clusters/*}:setMaintenancePolicy" body: "*" };
  }
}

// Parameters that describe the nodes in a cluster.
message NodeConfig {
  // The name of a Google Compute Engine [machine
  // type](/compute/docs/machine-types) (e.g.
  // `n1-standard-1`).
  //
  // If unspecified, the default machine type is
  // `n1-standard-1`.
  string machine_type = 1;

  // Size of the disk attached to each node, specified in GB.
  // The smallest allowed disk size is 10GB.
  //
  // If unspecified, the default disk size is 100GB.
  int32 disk_size_gb = 2;

  // The set of Google API scopes to be made available on all of the
  // node VMs under the "default" service account.
  //
  // The following scopes are recommended, but not required, and by default are
  // not included:
  //
  // * `https://www.googleapis.com/auth/compute` is required for mounting
  // persistent storage on your nodes.
  // * `https://www.googleapis.com/auth/devstorage.read_only` is required for
  // communicating with **gcr.io**
  // (the [Google Container Registry](/container-registry/)).
  //
  // If unspecified, no scopes are added, unless Cloud Logging or Cloud
  // Monitoring are enabled, in which case their required scopes will be added.
  repeated string oauth_scopes = 3;

  // The Google Cloud Platform Service Account to be used by the node VMs. If
  // no Service Account is specified, the "default" service account is used.
  string service_account = 9;

  // The metadata key/value pairs assigned to instances in the cluster.
  //
  // Keys must conform to the regexp [a-zA-Z0-9-_]+ and be less than 128 bytes
  // in length. These are reflected as part of a URL in the metadata server.
  // Additionally, to avoid ambiguity, keys must not conflict with any other
  // metadata keys for the project or be one of the four reserved keys:
  // "instance-template", "kube-env", "startup-script", and "user-data"
  //
  // Values are free-form strings, and only have meaning as interpreted by
  // the image running in the instance. The only restriction placed on them is
  // that each value's size must be less than or equal to 32 KB.
  //
  // The total size of all keys and values must be less than 512 KB.
  map<string, string> metadata = 4;

  // The image type to use for this node. Note that for a given image type,
  // the latest version of it will be used.
  string image_type = 5;

  // The map of Kubernetes labels (key/value pairs) to be applied to each node.
  // These will added in addition to any default label(s) that
  // Kubernetes may apply to the node.
  // In case of conflict in label keys, the applied set may differ depending on
  // the Kubernetes version -- it's best to assume the behavior is undefined
  // and conflicts should be avoided.
  // For more information, including usage and the valid values, see:
  // https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
  map<string, string> labels = 6;

  // The number of local SSD disks to be attached to the node.
  //
  // The limit for this value is dependant upon the maximum number of
  // disks available on a machine per zone. See:
  // https://cloud.google.com/compute/docs/disks/local-ssd#local_ssd_limits
  // for more information.
  int32 local_ssd_count = 7;

  // The list of instance tags applied to all nodes. Tags are used to identify
  // valid sources or targets for network firewalls and are specified by
  // the client during cluster or node pool creation. Each tag within the list
  // must comply with RFC1035.
  repeated string tags = 8;

  // Whether the nodes are created as preemptible VM instances. See:
  // https://cloud.google.com/compute/docs/instances/preemptible for more
  // inforamtion about preemptible VM instances.
  bool preemptible = 10;

  // A list of hardware accelerators to be attached to each node.
  // See https://cloud.google.com/compute/docs/gpus for more information about
  // support for GPUs.
  repeated AcceleratorConfig accelerators = 11;

  // Minimum CPU platform to be used by this instance. The instance may be
  // scheduled on the specified or newer CPU platform. Applicable values are the
  // friendly names of CPU platforms, such as
  // <code>minCpuPlatform: &quot;Intel Haswell&quot;</code> or
  // <code>minCpuPlatform: &quot;Intel Sandy Bridge&quot;</code>. For more
  // information, read [how to specify min CPU platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
  string min_cpu_platform = 13;

  // List of kubernetes taints to be applied to each node.
  //
  // For more information, including usage and the valid values, see:
  // https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/
  repeated NodeTaint taints = 15;
}

// Kubernetes taint is comprised of three fields: key, value, and effect. Effect
// can only be one of three types:  NoSchedule, PreferNoSchedule or NoExecute.
//
// For more information, including usage and the valid values, see:
// https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/
message NodeTaint {
  // Possible values for Effect in taint.
  enum Effect {
    // Not set
    EFFECT_UNSPECIFIED = 0;

    // NoSchedule
    NO_SCHEDULE = 1;

    // PreferNoSchedule
    PREFER_NO_SCHEDULE = 2;

    // NoExecute
    NO_EXECUTE = 3;
  }

  // Key for taint.
  string key = 1;

  // Value for taint.
  string value = 2;

  // Effect for taint.
  Effect effect = 3;
}

// The authentication information for accessing the master endpoint.
// Authentication can be done using HTTP basic auth or using client
// certificates.
message MasterAuth {
  // The username to use for HTTP basic authentication to the master endpoint.
  // For clusters v1.6.0 and later, you can disable basic authentication by
  // providing an empty username.
  string username = 1;

  // The password to use for HTTP basic authentication to the master endpoint.
  // Because the master endpoint is open to the Internet, you should create a
  // strong password.  If a password is provided for cluster creation, username
  // must be non-empty.
  string password = 2;

  // Configuration for client certificate authentication on the cluster.  If no
  // configuration is specified, a client certificate is issued.
  ClientCertificateConfig client_certificate_config = 3;

  // [Output only] Base64-encoded public certificate that is the root of
  // trust for the cluster.
  string cluster_ca_certificate = 100;

  // [Output only] Base64-encoded public certificate used by clients to
  // authenticate to the cluster endpoint.
  string client_certificate = 101;

  // [Output only] Base64-encoded private key used by clients to authenticate
  // to the cluster endpoint.
  string client_key = 102;
}

// Configuration for client certificates on the cluster.
message ClientCertificateConfig {
  // Issue a client certificate.
  bool issue_client_certificate = 1;
}

// Configuration for the addons that can be automatically spun up in the
// cluster, enabling additional functionality.
message AddonsConfig {
  // Configuration for the HTTP (L7) load balancing controller addon, which
  // makes it easy to set up HTTP load balancers for services in a cluster.
  HttpLoadBalancing http_load_balancing = 1;

  // Configuration for the horizontal pod autoscaling feature, which
  // increases or decreases the number of replica pods a replication controller
  // has based on the resource usage of the existing pods.
  HorizontalPodAutoscaling horizontal_pod_autoscaling = 2;

  // Configuration for the Kubernetes Dashboard.
  KubernetesDashboard kubernetes_dashboard = 3;

  // Configuration for NetworkPolicy. This only tracks whether the addon
  // is enabled or not on the Master, it does not track whether network policy
  // is enabled for the nodes.
  NetworkPolicyConfig network_policy_config = 4;
}

// Configuration options for the HTTP (L7) load balancing controller addon,
// which makes it easy to set up HTTP load balancers for services in a cluster.
message HttpLoadBalancing {
  // Whether the HTTP Load Balancing controller is enabled in the cluster.
  // When enabled, it runs a small pod in the cluster that manages the load
  // balancers.
  bool disabled = 1;
}

// Configuration options for the horizontal pod autoscaling feature, which
// increases or decreases the number of replica pods a replication controller
// has based on the resource usage of the existing pods.
message HorizontalPodAutoscaling {
  // Whether the Horizontal Pod Autoscaling feature is enabled in the cluster.
  // When enabled, it ensures that a Heapster pod is running in the cluster,
  // which is also used by the Cloud Monitoring service.
  bool disabled = 1;
}

// Configuration for the Kubernetes Dashboard.
message KubernetesDashboard {
  // Whether the Kubernetes Dashboard is enabled for this cluster.
  bool disabled = 1;
}

// Configuration for NetworkPolicy. This only tracks whether the addon
// is enabled or not on the Master, it does not track whether network policy
// is enabled for the nodes.
message NetworkPolicyConfig {
  // Whether NetworkPolicy is enabled for this cluster.
  bool disabled = 1;
}

// Configuration options for the master authorized networks feature. Enabled
// master authorized networks will disallow all external traffic to access
// Kubernetes master through HTTPS except traffic from the given CIDR blocks,
// Google Compute Engine Public IPs and Google Prod IPs.
message MasterAuthorizedNetworksConfig {
  // CidrBlock contains an optional name and one CIDR block.
  message CidrBlock {
    // display_name is an optional field for users to identify CIDR blocks.
    string display_name = 1;

    // cidr_block must be specified in CIDR notation.
    string cidr_block = 2;
  }

  // Whether or not master authorized networks is enabled.
  bool enabled = 1;

  // cidr_blocks define up to 10 external networks that could access
  // Kubernetes master through HTTPS.
  repeated CidrBlock cidr_blocks = 2;
}

// Configuration options for the NetworkPolicy feature.
// https://kubernetes.io/docs/concepts/services-networking/networkpolicies/
message NetworkPolicy {
  // Allowed Network Policy providers.
  enum Provider {
    // Not set
    PROVIDER_UNSPECIFIED = 0;

    // Tigera (Calico Felix).
    CALICO = 1;
  }

  // The selected network policy provider.
  Provider provider = 1;

  // Whether network policy is enabled on the cluster.
  bool enabled = 2;
}

// Configuration for controlling how IPs are allocated in the cluster.
message IPAllocationPolicy {
  // Whether alias IPs will be used for pod IPs in the cluster.
  bool use_ip_aliases = 1;

  // Whether a new subnetwork will be created automatically for the cluster.
  //
  // This field is only applicable when `use_ip_aliases` is true.
  bool create_subnetwork = 2;

  // A custom subnetwork name to be used if `create_subnetwork` is true.  If
  // this field is empty, then an automatic name will be chosen for the new
  // subnetwork.
  string subnetwork_name = 3;

  // This field is deprecated, use cluster_ipv4_cidr_block.
  string cluster_ipv4_cidr = 4;

  // This field is deprecated, use node_ipv4_cidr_block.
  string node_ipv4_cidr = 5;

  // This field is deprecated, use services_ipv4_cidr_block.
  string services_ipv4_cidr = 6;

  // The name of the secondary range to be used for the cluster CIDR
  // block.  The secondary range will be used for pod IP
  // addresses. This must be an existing secondary range associated
  // with the cluster subnetwork.
  //
  // This field is only applicable if use_ip_aliases is true and
  // create_subnetwork is false.
  string cluster_secondary_range_name = 7;

  // The name of the secondary range to be used as for the services
  // CIDR block.  The secondary range will be used for service
  // ClusterIPs. This must be an existing secondary range associated
  // with the cluster subnetwork.
  //
  // This field is only applicable with use_ip_aliases is true and
  // create_subnetwork is false.
  string services_secondary_range_name = 8;

  // The IP address range for the cluster pod IPs. If this field is set, then
  // `cluster.cluster_ipv4_cidr` must be left blank.
  //
  // This field is only applicable when `use_ip_aliases` is true.
  //
  // Set to blank to have a range chosen with the default size.
  //
  // Set to /netmask (e.g. `/14`) to have a range chosen with a specific
  // netmask.
  //
  // Set to a
  // [CIDR](http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing)
  // notation (e.g. `10.96.0.0/14`) from the RFC-1918 private networks (e.g.
  // `10.0.0.0/8`, `172.16.0.0/12`, `192.168.0.0/16`) to pick a specific range
  // to use.
  string cluster_ipv4_cidr_block = 9;

  // The IP address range of the instance IPs in this cluster.
  //
  // This is applicable only if `create_subnetwork` is true.
  //
  // Set to blank to have a range chosen with the default size.
  //
  // Set to /netmask (e.g. `/14`) to have a range chosen with a specific
  // netmask.
  //
  // Set to a
  // [CIDR](http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing)
  // notation (e.g. `10.96.0.0/14`) from the RFC-1918 private networks (e.g.
  // `10.0.0.0/8`, `172.16.0.0/12`, `192.168.0.0/16`) to pick a specific range
  // to use.
  string node_ipv4_cidr_block = 10;

  // The IP address range of the services IPs in this cluster. If blank, a range
  // will be automatically chosen with the default size.
  //
  // This field is only applicable when `use_ip_aliases` is true.
  //
  // Set to blank to have a range chosen with the default size.
  //
  // Set to /netmask (e.g. `/14`) to have a range chosen with a specific
  // netmask.
  //
  // Set to a
  // [CIDR](http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing)
  // notation (e.g. `10.96.0.0/14`) from the RFC-1918 private networks (e.g.
  // `10.0.0.0/8`, `172.16.0.0/12`, `192.168.0.0/16`) to pick a specific range
  // to use.
  string services_ipv4_cidr_block = 11;
}

// Configuration for the PodSecurityPolicy feature.
message PodSecurityPolicyConfig {
  // Enable the PodSecurityPolicy controller for this cluster. If enabled, pods
  // must be valid under a PodSecurityPolicy to be created.
  bool enabled = 1;
}

// A Google Container Engine cluster.
message Cluster {
  // The current status of the cluster.
  enum Status {
    // Not set.
    STATUS_UNSPECIFIED = 0;

    // The PROVISIONING state indicates the cluster is being created.
    PROVISIONING = 1;

    // The RUNNING state indicates the cluster has been created and is fully
    // usable.
    RUNNING = 2;

    // The RECONCILING state indicates that some work is actively being done on
    // the cluster, such as upgrading the master or node software. Details can
    // be found in the `statusMessage` field.
    RECONCILING = 3;

    // The STOPPING state indicates the cluster is being deleted.
    STOPPING = 4;

    // The ERROR state indicates the cluster may be unusable. Details
    // can be found in the `statusMessage` field.
    ERROR = 5;
  }

  // The name of this cluster. The name must be unique within this project
  // and zone, and can be up to 40 characters with the following restrictions:
  //
  // * Lowercase letters, numbers, and hyphens only.
  // * Must start with a letter.
  // * Must end with a number or a letter.
  string name = 1;

  // An optional description of this cluster.
  string description = 2;

  // The number of nodes to create in this cluster. You must ensure that your
  // Compute Engine <a href="/compute/docs/resource-quotas">resource quota</a>
  // is sufficient for this number of instances. You must also have available
  // firewall and routes quota.
  // For requests, this field should only be used in lieu of a
  // "node_pool" object, since this configuration (along with the
  // "node_config") will be used to create a "NodePool" object with an
  // auto-generated name. Do not use this and a node_pool at the same time.
  int32 initial_node_count = 3;

  // Parameters used in creating the cluster's nodes.
  // See `nodeConfig` for the description of its properties.
  // For requests, this field should only be used in lieu of a
  // "node_pool" object, since this configuration (along with the
  // "initial_node_count") will be used to create a "NodePool" object with an
  // auto-generated name. Do not use this and a node_pool at the same time.
  // For responses, this field will be populated with the node configuration of
  // the first node pool.
  //
  // If unspecified, the defaults are used.
  NodeConfig node_config = 4;

  // The authentication information for accessing the master endpoint.
  MasterAuth master_auth = 5;

  // The logging service the cluster should use to write logs.
  // Currently available options:
  //
  // * `logging.googleapis.com` - the Google Cloud Logging service.
  // * `none` - no logs will be exported from the cluster.
  // * if left as an empty string,`logging.googleapis.com` will be used.
  string logging_service = 6;

  // The monitoring service the cluster should use to write metrics.
  // Currently available options:
  //
  // * `monitoring.googleapis.com` - the Google Cloud Monitoring service.
  // * `none` - no metrics will be exported from the cluster.
  // * if left as an empty string, `monitoring.googleapis.com` will be used.
  string monitoring_service = 7;

  // The name of the Google Compute Engine
  // [network](/compute/docs/networks-and-firewalls#networks) to which the
  // cluster is connected. If left unspecified, the `default` network
  // will be used.
  string network = 8;

  // The IP address range of the container pods in this cluster, in
  // [CIDR](http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing)
  // notation (e.g. `10.96.0.0/14`). Leave blank to have
  // one automatically chosen or specify a `/14` block in `10.0.0.0/8`.
  string cluster_ipv4_cidr = 9;

  // Configurations for the various addons available to run in the cluster.
  AddonsConfig addons_config = 10;

  // The name of the Google Compute Engine
  // [subnetwork](/compute/docs/subnetworks) to which the
  // cluster is connected.
  string subnetwork = 11;

  // The node pools associated with this cluster.
  // This field should not be set if "node_config" or "initial_node_count" are
  // specified.
  repeated NodePool node_pools = 12;

  // The list of Google Compute Engine
  // [locations](/compute/docs/zones#available) in which the cluster's nodes
  // should be located.
  repeated string locations = 13;

  // Kubernetes alpha features are enabled on this cluster. This includes alpha
  // API groups (e.g. v1alpha1) and features that may not be production ready in
  // the kubernetes version of the master and nodes.
  // The cluster has no SLA for uptime and master/node upgrades are disabled.
  // Alpha enabled clusters are automatically deleted thirty days after
  // creation.
  bool enable_kubernetes_alpha = 14;

  // Configuration options for the NetworkPolicy feature.
  NetworkPolicy network_policy = 19;

  // Configuration for cluster IP allocation.
  IPAllocationPolicy ip_allocation_policy = 20;

  // The configuration options for master authorized networks feature.
  MasterAuthorizedNetworksConfig master_authorized_networks_config = 22;

  // Configure the maintenance policy for this cluster.
  MaintenancePolicy maintenance_policy = 23;

  // Configuration for the PodSecurityPolicy feature.
  PodSecurityPolicyConfig pod_security_policy_config = 25;

  // [Output only] Server-defined URL for the resource.
  string self_link = 100;

  // [Output only] The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use location instead.
  string zone = 101;

  // [Output only] The IP address of this cluster's master endpoint.
  // The endpoint can be accessed from the internet at
  // `https://username:password@endpoint/`.
  //
  // See the `masterAuth` property of this resource for username and
  // password information.
  string endpoint = 102;

  // The initial Kubernetes version for this cluster.  Valid versions are those
  // found in validMasterVersions returned by getServerConfig.  The version can
  // be upgraded over time; such upgrades are reflected in
  // currentMasterVersion and currentNodeVersion.
  string initial_cluster_version = 103;

  // [Output only] The current software version of the master endpoint.
  string current_master_version = 104;

  // [Output only] The current version of the node software components.
  // If they are currently at multiple versions because they're in the process
  // of being upgraded, this reflects the minimum version of all nodes.
  string current_node_version = 105;

  // [Output only] The time the cluster was created, in
  // [RFC3339](https://www.ietf.org/rfc/rfc3339.txt) text format.
  string create_time = 106;

  // [Output only] The current status of this cluster.
  Status status = 107;

  // [Output only] Additional information about the current status of this
  // cluster, if available.
  string status_message = 108;

  // [Output only] The size of the address space on each node for hosting
  // containers. This is provisioned from within the `container_ipv4_cidr`
  // range.
  int32 node_ipv4_cidr_size = 109;

  // [Output only] The IP address range of the Kubernetes services in
  // this cluster, in
  // [CIDR](http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing)
  // notation (e.g. `1.2.3.4/29`). Service addresses are
  // typically put in the last `/16` from the container CIDR.
  string services_ipv4_cidr = 110;

  // [Output only] The resource URLs of [instance
  // groups](/compute/docs/instance-groups/) associated with this
  // cluster.
  repeated string instance_group_urls = 111;

  // [Output only] The number of nodes currently in the cluster.
  int32 current_node_count = 112;

  // [Output only] The time the cluster will be automatically
  // deleted in [RFC3339](https://www.ietf.org/rfc/rfc3339.txt) text format.
  string expire_time = 113;

  // [Output only] The name of the Google Compute Engine
  // [zone](/compute/docs/regions-zones/regions-zones#available) or
  // [region](/compute/docs/regions-zones/regions-zones#available) in which
  // the cluster resides.
  string location = 114;
}

// ClusterUpdate describes an update to the cluster. Exactly one update can
// be applied to a cluster with each request, so at most one field can be
// provided.
message ClusterUpdate {
  // The Kubernetes version to change the nodes to (typically an
  // upgrade). Use `-` to upgrade to the latest version supported by
  // the server.
  string desired_node_version = 4;

  // The monitoring service the cluster should use to write metrics.
  // Currently available options:
  //
  // * "monitoring.googleapis.com" - the Google Cloud Monitoring service
  // * "none" - no metrics will be exported from the cluster
  string desired_monitoring_service = 5;

  // Configurations for the various addons available to run in the cluster.
  AddonsConfig desired_addons_config = 6;

  // The node pool to be upgraded. This field is mandatory if
  // "desired_node_version", "desired_image_family" or
  // "desired_node_pool_autoscaling" is specified and there is more than one
  // node pool on the cluster.
  string desired_node_pool_id = 7;

  // The desired image type for the node pool.
  // NOTE: Set the "desired_node_pool" field as well.
  string desired_image_type = 8;

  // Autoscaler configuration for the node pool specified in
  // desired_node_pool_id. If there is only one pool in the
  // cluster and desired_node_pool_id is not provided then
  // the change applies to that single node pool.
  NodePoolAutoscaling desired_node_pool_autoscaling = 9;

  // The desired list of Google Compute Engine
  // [locations](/compute/docs/zones#available) in which the cluster's nodes
  // should be located. Changing the locations a cluster is in will result
  // in nodes being either created or removed from the cluster, depending on
  // whether locations are being added or removed.
  //
  // This list must always include the cluster's primary zone.
  repeated string desired_locations = 10;

  // The desired configuration options for master authorized networks feature.
  MasterAuthorizedNetworksConfig desired_master_authorized_networks_config = 12;

  // The desired configuration options for the PodSecurityPolicy feature.
  PodSecurityPolicyConfig desired_pod_security_policy_config = 14;

  // The Kubernetes version to change the master to. The only valid value is the
  // latest supported version. Use "-" to have the server automatically select
  // the latest version.
  string desired_master_version = 100;
}

// This operation resource represents operations that may have happened or are
// happening on the cluster. All fields are output only.
message Operation {
  // Current status of the operation.
  enum Status {
    // Not set.
    STATUS_UNSPECIFIED = 0;

    // The operation has been created.
    PENDING = 1;

    // The operation is currently running.
    RUNNING = 2;

    // The operation is done, either cancelled or completed.
    DONE = 3;

    // The operation is aborting.
    ABORTING = 4;
  }

  // Operation type.
  enum Type {
    // Not set.
    TYPE_UNSPECIFIED = 0;

    // Cluster create.
    CREATE_CLUSTER = 1;

    // Cluster delete.
    DELETE_CLUSTER = 2;

    // A master upgrade.
    UPGRADE_MASTER = 3;

    // A node upgrade.
    UPGRADE_NODES = 4;

    // Cluster repair.
    REPAIR_CLUSTER = 5;

    // Cluster update.
    UPDATE_CLUSTER = 6;

    // Node pool create.
    CREATE_NODE_POOL = 7;

    // Node pool delete.
    DELETE_NODE_POOL = 8;

    // Set node pool management.
    SET_NODE_POOL_MANAGEMENT = 9;

    // Automatic node pool repair.
    AUTO_REPAIR_NODES = 10;

    // Automatic node upgrade.
    AUTO_UPGRADE_NODES = 11;

    // Set labels.
    SET_LABELS = 12;

    // Set/generate master auth materials
    SET_MASTER_AUTH = 13;

    // Set node pool size.
    SET_NODE_POOL_SIZE = 14;

    // Updates network policy for a cluster.
    SET_NETWORK_POLICY = 15;

    // Set the maintenance policy.
    SET_MAINTENANCE_POLICY = 16;
  }

  // The server-assigned ID for the operation.
  string name = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the operation
  // is taking place.
  // This field is deprecated, use location instead.
  string zone = 2;

  // The operation type.
  Type operation_type = 3;

  // The current status of the operation.
  Status status = 4;

  // Detailed operation progress, if available.
  string detail = 8;

  // If an error has occurred, a textual description of the error.
  string status_message = 5;

  // Server-defined URL for the resource.
  string self_link = 6;

  // Server-defined URL for the target of the operation.
  string target_link = 7;

  // [Output only] The name of the Google Compute Engine
  // [zone](/compute/docs/regions-zones/regions-zones#available) or
  // [region](/compute/docs/regions-zones/regions-zones#available) in which
  // the cluster resides.
  string location = 9;

  // [Output only] The time the operation started, in
  // [RFC3339](https://www.ietf.org/rfc/rfc3339.txt) text format.
  string start_time = 10;

  // [Output only] The time the operation completed, in
  // [RFC3339](https://www.ietf.org/rfc/rfc3339.txt) text format.
  string end_time = 11;
}

// CreateClusterRequest creates a cluster.
message CreateClusterRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use parent instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use parent instead.
  string zone = 2;

  // A [cluster
  // resource](/container-engine/reference/rest/v1alpha1/projects.zones.clusters)
  Cluster cluster = 3;

  // The parent (project and location) where the cluster will be created.
  // Specified in the format 'projects/*/locations/*'.
  string parent = 5;
}

// GetClusterRequest gets the settings of a cluster.
message GetClusterRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to retrieve.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The name (project, location, cluster) of the cluster to retrieve.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 5;
}

// UpdateClusterRequest updates the settings of a cluster.
message UpdateClusterRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to upgrade.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // A description of the update.
  ClusterUpdate update = 4;

  // The name (project, location, cluster) of the cluster to update.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 5;
}

// SetNodePoolVersionRequest updates the version of a node pool.
message UpdateNodePoolRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to upgrade.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The name of the node pool to upgrade.
  // This field is deprecated, use name instead.
  string node_pool_id = 4;

  // The Kubernetes version to change the nodes to (typically an
  // upgrade). Use `-` to upgrade to the latest version supported by
  // the server.
  string node_version = 5;

  // The desired image type for the node pool.
  string image_type = 6;

  // The name (project, location, cluster, node pool) of the node pool to update.
  // Specified in the format 'projects/*/locations/*/clusters/*/nodePools/*'.
  string name = 8;
}

// SetNodePoolAutoscalingRequest sets the autoscaler settings of a node pool.
message SetNodePoolAutoscalingRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to upgrade.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The name of the node pool to upgrade.
  // This field is deprecated, use name instead.
  string node_pool_id = 4;

  // Autoscaling configuration for the node pool.
  NodePoolAutoscaling autoscaling = 5;

  // The name (project, location, cluster, node pool) of the node pool to set
  // autoscaler settings. Specified in the format
  // 'projects/*/locations/*/clusters/*/nodePools/*'.
  string name = 6;
}

// SetLoggingServiceRequest sets the logging service of a cluster.
message SetLoggingServiceRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  string zone = 2;

  // The name of the cluster to upgrade.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The logging service the cluster should use to write metrics.
  // Currently available options:
  //
  // * "logging.googleapis.com" - the Google Cloud Logging service
  // * "none" - no metrics will be exported from the cluster
  string logging_service = 4;

  // The name (project, location, cluster) of the cluster to set logging.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 5;
}

// SetMonitoringServiceRequest sets the monitoring service of a cluster.
message SetMonitoringServiceRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to upgrade.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The monitoring service the cluster should use to write metrics.
  // Currently available options:
  //
  // * "monitoring.googleapis.com" - the Google Cloud Monitoring service
  // * "none" - no metrics will be exported from the cluster
  string monitoring_service = 4;

  // The name (project, location, cluster) of the cluster to set monitoring.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 6;
}

// SetAddonsRequest sets the addons associated with the cluster.
message SetAddonsConfigRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to upgrade.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The desired configurations for the various addons available to run in the
  // cluster.
  AddonsConfig addons_config = 4;

  // The name (project, location, cluster) of the cluster to set addons.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 6;
}

// SetLocationsRequest sets the locations of the cluster.
message SetLocationsRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to upgrade.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The desired list of Google Compute Engine
  // [locations](/compute/docs/zones#available) in which the cluster's nodes
  // should be located. Changing the locations a cluster is in will result
  // in nodes being either created or removed from the cluster, depending on
  // whether locations are being added or removed.
  //
  // This list must always include the cluster's primary zone.
  repeated string locations = 4;

  // The name (project, location, cluster) of the cluster to set locations.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 6;
}

// UpdateMasterRequest updates the master of the cluster.
message UpdateMasterRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to upgrade.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The Kubernetes version to change the master to. The only valid value is the
  // latest supported version. Use "-" to have the server automatically select
  // the latest version.
  string master_version = 4;

  // The name (project, location, cluster) of the cluster to update.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 7;
}

// SetMasterAuthRequest updates the admin password of a cluster.
message SetMasterAuthRequest {
  // Operation type: what type update to perform.
  enum Action {
    // Operation is unknown and will error out.
    UNKNOWN = 0;

    // Set the password to a user generated value.
    SET_PASSWORD = 1;

    // Generate a new password and set it to that.
    GENERATE_PASSWORD = 2;

    // Set the username.  If an empty username is provided, basic authentication
    // is disabled for the cluster.  If a non-empty username is provided, basic
    // authentication is enabled, with either a provided password or a generated
    // one.
    SET_USERNAME = 3;
  }

  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to upgrade.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The exact form of action to be taken on the master auth.
  Action action = 4;

  // A description of the update.
  MasterAuth update = 5;

  // The name (project, location, cluster) of the cluster to set auth.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 7;
}

// DeleteClusterRequest deletes a cluster.
message DeleteClusterRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to delete.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The name (project, location, cluster) of the cluster to delete.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 4;
}

// ListClustersRequest lists clusters.
message ListClustersRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use parent instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides, or "-" for all zones.
  // This field is deprecated, use parent instead.
  string zone = 2;

  // The parent (project and location) where the clusters will be listed.
  // Specified in the format 'projects/*/locations/*'.
  // Location "-" matches all zones and all regions.
  string parent = 4;
}

// ListClustersResponse is the result of ListClustersRequest.
message ListClustersResponse {
  // A list of clusters in the project in the specified zone, or
  // across all ones.
  repeated Cluster clusters = 1;

  // If any zones are listed here, the list of clusters returned
  // may be missing those zones.
  repeated string missing_zones = 2;
}

// GetOperationRequest gets a single operation.
message GetOperationRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The server-assigned `name` of the operation.
  // This field is deprecated, use name instead.
  string operation_id = 3;

  // The name (project, location, operation id) of the operation to get.
  // Specified in the format 'projects/*/locations/*/operations/*'.
  string name = 5;
}

// ListOperationsRequest lists operations.
message ListOperationsRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use parent instead.
  string project_id = 1;

  // The name of the Google Compute Engine [zone](/compute/docs/zones#available)
  // to return operations for, or `-` for all zones.
  // This field is deprecated, use parent instead.
  string zone = 2;

  // The parent (project and location) where the operations will be listed.
  // Specified in the format 'projects/*/locations/*'.
  // Location "-" matches all zones and all regions.
  string parent = 4;
}

// CancelOperationRequest cancels a single operation.
message CancelOperationRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the operation resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The server-assigned `name` of the operation.
  // This field is deprecated, use name instead.
  string operation_id = 3;

  // The name (project, location, operation id) of the operation to cancel.
  // Specified in the format 'projects/*/locations/*/operations/*'.
  string name = 4;
}

// ListOperationsResponse is the result of ListOperationsRequest.
message ListOperationsResponse {
  // A list of operations in the project in the specified zone.
  repeated Operation operations = 1;

  // If any zones are listed here, the list of operations returned
  // may be missing the operations from those zones.
  repeated string missing_zones = 2;
}

// Gets the current Container Engine service configuration.
message GetServerConfigRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine [zone](/compute/docs/zones#available)
  // to return operations for.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name (project and location) of the server config to get
  // Specified in the format 'projects/*/locations/*'.
  string name = 4;
}

// Container Engine service configuration.
message ServerConfig {
  // Version of Kubernetes the service deploys by default.
  string default_cluster_version = 1;

  // List of valid node upgrade target versions.
  repeated string valid_node_versions = 3;

  // Default image type.
  string default_image_type = 4;

  // List of valid image types.
  repeated string valid_image_types = 5;

  // List of valid master versions.
  repeated string valid_master_versions = 6;
}

// CreateNodePoolRequest creates a node pool for a cluster.
message CreateNodePoolRequest {
  // The Google Developers Console [project ID or project
  // number](https://developers.google.com/console/help/new/#projectnumber).
  // This field is deprecated, use parent instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use parent instead.
  string zone = 2;

  // The name of the cluster.
  // This field is deprecated, use parent instead.
  string cluster_id = 3;

  // The node pool to create.
  NodePool node_pool = 4;

  // The parent (project, location, cluster id) where the node pool will be created.
  // Specified in the format 'projects/*/locations/*/clusters/*/nodePools/*'.
  string parent = 6;
}

// DeleteNodePoolRequest deletes a node pool for a cluster.
message DeleteNodePoolRequest {
  // The Google Developers Console [project ID or project
  // number](https://developers.google.com/console/help/new/#projectnumber).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The name of the node pool to delete.
  // This field is deprecated, use name instead.
  string node_pool_id = 4;

  // The name (project, location, cluster, node pool id) of the node pool to delete.
  // Specified in the format 'projects/*/locations/*/clusters/*/nodePools/*'.
  string name = 6;
}

// ListNodePoolsRequest lists the node pool(s) for a cluster.
message ListNodePoolsRequest {
  // The Google Developers Console [project ID or project
  // number](https://developers.google.com/console/help/new/#projectnumber).
  // This field is deprecated, use parent instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use parent instead.
  string zone = 2;

  // The name of the cluster.
  // This field is deprecated, use parent instead.
  string cluster_id = 3;

  // The parent (project, location, cluster id) where the node pools will be listed.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string parent = 5;
}

// GetNodePoolRequest retrieves a node pool for a cluster.
message GetNodePoolRequest {
  // The Google Developers Console [project ID or project
  // number](https://developers.google.com/console/help/new/#projectnumber).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The name of the node pool.
  // This field is deprecated, use name instead.
  string node_pool_id = 4;

  // The name (project, location, cluster, node pool id) of the node pool to get.
  // Specified in the format 'projects/*/locations/*/clusters/*/nodePools/*'.
  string name = 6;
}

// NodePool contains the name and configuration for a cluster's node pool.
// Node pools are a set of nodes (i.e. VM's), with a common configuration and
// specification, under the control of the cluster master. They may have a set
// of Kubernetes labels applied to them, which may be used to reference them
// during pod scheduling. They may also be resized up or down, to accommodate
// the workload.
message NodePool {
  // The current status of the node pool instance.
  enum Status {
    // Not set.
    STATUS_UNSPECIFIED = 0;

    // The PROVISIONING state indicates the node pool is being created.
    PROVISIONING = 1;

    // The RUNNING state indicates the node pool has been created
    // and is fully usable.
    RUNNING = 2;

    // The RUNNING_WITH_ERROR state indicates the node pool has been created
    // and is partially usable. Some error state has occurred and some
    // functionality may be impaired. Customer may need to reissue a request
    // or trigger a new update.
    RUNNING_WITH_ERROR = 3;

    // The RECONCILING state indicates that some work is actively being done on
    // the node pool, such as upgrading node software. Details can
    // be found in the `statusMessage` field.
    RECONCILING = 4;

    // The STOPPING state indicates the node pool is being deleted.
    STOPPING = 5;

    // The ERROR state indicates the node pool may be unusable. Details
    // can be found in the `statusMessage` field.
    ERROR = 6;
  }

  // The name of the node pool.
  string name = 1;

  // The node configuration of the pool.
  NodeConfig config = 2;

  // The initial node count for the pool. You must ensure that your
  // Compute Engine <a href="/compute/docs/resource-quotas">resource quota</a>
  // is sufficient for this number of instances. You must also have available
  // firewall and routes quota.
  int32 initial_node_count = 3;

  // Autoscaler configuration for this NodePool. Autoscaler is enabled
  // only if a valid configuration is present.
  NodePoolAutoscaling autoscaling = 4;

  // NodeManagement configuration for this NodePool.
  NodeManagement management = 5;

  // [Output only] Server-defined URL for the resource.
  string self_link = 100;

  // [Output only] The version of the Kubernetes of this node.
  string version = 101;

  // [Output only] The resource URLs of [instance
  // groups](/compute/docs/instance-groups/) associated with this
  // node pool.
  repeated string instance_group_urls = 102;

  // [Output only] The status of the nodes in this pool instance.
  Status status = 103;

  // [Output only] Additional information about the current status of this
  // node pool instance, if available.
  string status_message = 104;
}

// NodeManagement defines the set of node management services turned on for the
// node pool.
message NodeManagement {
  // Whether the nodes will be automatically upgraded.
  bool auto_upgrade = 1;

  // Whether the nodes will be automatically repaired.
  bool auto_repair = 2;

  // Specifies the Auto Upgrade knobs for the node pool.
  AutoUpgradeOptions upgrade_options = 10;
}

// AutoUpgradeOptions defines the set of options for the user to control how
// the Auto Upgrades will proceed.
message AutoUpgradeOptions {
  // [Output only] This field is set when upgrades are about to commence
  // with the approximate start time for the upgrades, in
  // [RFC3339](https://www.ietf.org/rfc/rfc3339.txt) text format.
  string auto_upgrade_start_time = 1;

  // [Output only] This field is set when upgrades are about to commence
  // with the description of the upgrade.
  string description = 2;
}

// MaintenancePolicy defines the maintenance policy to be used for the cluster.
message MaintenancePolicy {
  // Specifies the maintenance window in which maintenance may be performed.
  MaintenanceWindow window = 1;
}

// MaintenanceWindow defines the maintenance window to be used for the cluster.
message MaintenanceWindow {
  // Unimplemented, reserved for future use.
  // HourlyMaintenanceWindow hourly_maintenance_window = 1;
  oneof policy {
    // DailyMaintenanceWindow specifies a daily maintenance operation window.
    DailyMaintenanceWindow daily_maintenance_window = 2;
  }
}

// Time window specified for daily maintenance operations.
message DailyMaintenanceWindow {
  // Time within the maintenance window to start the maintenance operations.
  // It must be in format "HH:MM”, where HH : [00-23] and MM : [00-59] GMT.
  string start_time = 2;

  // [Output only] Duration of the time window, automatically chosen to be
  // smallest possible in the given scenario.
  string duration = 3;
}

// SetNodePoolManagementRequest sets the node management properties of a node
// pool.
message SetNodePoolManagementRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to update.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The name of the node pool to update.
  // This field is deprecated, use name instead.
  string node_pool_id = 4;

  // NodeManagement configuration for the node pool.
  NodeManagement management = 5;

  // The name (project, location, cluster, node pool id) of the node pool to set
  // management properties. Specified in the format
  // 'projects/*/locations/*/clusters/*/nodePools/*'.
  string name = 7;
}

// SetNodePoolSizeRequest sets the size a node
// pool.
message SetNodePoolSizeRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to update.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The name of the node pool to update.
  // This field is deprecated, use name instead.
  string node_pool_id = 4;

  // The desired node count for the pool.
  int32 node_count = 5;

  // The name (project, location, cluster, node pool id) of the node pool to set
  // size.
  // Specified in the format 'projects/*/locations/*/clusters/*/nodePools/*'.
  string name = 7;
}

// RollbackNodePoolUpgradeRequest rollbacks the previously Aborted or Failed
// NodePool upgrade. This will be an no-op if the last upgrade successfully
// completed.
message RollbackNodePoolUpgradeRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to rollback.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The name of the node pool to rollback.
  // This field is deprecated, use name instead.
  string node_pool_id = 4;

  // The name (project, location, cluster, node pool id) of the node poll to
  // rollback upgrade.
  // Specified in the format 'projects/*/locations/*/clusters/*/nodePools/*'.
  string name = 6;
}

// ListNodePoolsResponse is the result of ListNodePoolsRequest.
message ListNodePoolsResponse {
  // A list of node pools for a cluster.
  repeated NodePool node_pools = 1;
}

// NodePoolAutoscaling contains information required by cluster autoscaler to
// adjust the size of the node pool to the current cluster usage.
message NodePoolAutoscaling {
  // Is autoscaling enabled for this node pool.
  bool enabled = 1;

  // Minimum number of nodes in the NodePool. Must be >= 1 and <=
  // max_node_count.
  int32 min_node_count = 2;

  // Maximum number of nodes in the NodePool. Must be >= min_node_count. There
  // has to enough quota to scale up the cluster.
  int32 max_node_count = 3;
}

// SetLabelsRequest sets the Google Cloud Platform labels on a Google Container
// Engine cluster, which will in turn set them for Google Compute Engine
// resources used by that cluster
message SetLabelsRequest {
  // The Google Developers Console [project ID or project
  // number](https://developers.google.com/console/help/new/#projectnumber).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The labels to set for that cluster.
  map<string, string> resource_labels = 4;

  // The fingerprint of the previous set of labels for this resource,
  // used to detect conflicts. The fingerprint is initially generated by
  // Container Engine and changes after every request to modify or update
  // labels. You must always provide an up-to-date fingerprint hash when
  // updating or changing labels. Make a <code>get()</code> request to the
  // resource to get the latest fingerprint.
  string label_fingerprint = 5;

  // The name (project, location, cluster id) of the cluster to set labels.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 7;
}

// SetLegacyAbacRequest enables or disables the ABAC authorization mechanism for
// a cluster.
message SetLegacyAbacRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster to update.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // Whether ABAC authorization will be enabled in the cluster.
  bool enabled = 4;

  // The name (project, location, cluster id) of the cluster to set legacy abac.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 6;
}

// StartIPRotationRequest creates a new IP for the cluster and then performs
// a node upgrade on each node pool to point to the new IP.
message StartIPRotationRequest {
  // The Google Developers Console [project ID or project
  // number](https://developers.google.com/console/help/new/#projectnumber).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The name (project, location, cluster id) of the cluster to start IP rotation.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 6;
}

// CompleteIPRotationRequest moves the cluster master back into single-IP mode.
message CompleteIPRotationRequest {
  // The Google Developers Console [project ID or project
  // number](https://developers.google.com/console/help/new/#projectnumber).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // The name (project, location, cluster id) of the cluster to complete IP rotation.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 7;
}

// AcceleratorConfig represents a Hardware Accelerator request.
message AcceleratorConfig {
  // The number of the accelerator cards exposed to an instance.
  int64 accelerator_count = 1;

  // The accelerator type resource name. List of supported accelerators
  // [here](/compute/docs/gpus/#Introduction)
  string accelerator_type = 2;
}

// SetNetworkPolicyRequest enables/disables network policy for a cluster.
message SetNetworkPolicyRequest {
  // The Google Developers Console [project ID or project
  // number](https://developers.google.com/console/help/new/#projectnumber).
  // This field is deprecated, use name instead.
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  // This field is deprecated, use name instead.
  string zone = 2;

  // The name of the cluster.
  // This field is deprecated, use name instead.
  string cluster_id = 3;

  // Configuration options for the NetworkPolicy feature.
  NetworkPolicy network_policy = 4;

  // The name (project, location, cluster id) of the cluster to set networking
  // policy.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 6;
}

// SetMaintenancePolicyRequest sets the maintenance policy for a cluster.
message SetMaintenancePolicyRequest {
  // The Google Developers Console [project ID or project
  // number](https://support.google.com/cloud/answer/6158840).
  string project_id = 1;

  // The name of the Google Compute Engine
  // [zone](/compute/docs/zones#available) in which the cluster
  // resides.
  string zone = 2;

  // The name of the cluster to update.
  string cluster_id = 3;

  // The maintenance policy to be set for the cluster. An empty field
  // clears the existing maintenance policy.
  MaintenancePolicy maintenance_policy = 4;

  // The name (project, location, cluster id) of the cluster to set maintenance
  // policy.
  // Specified in the format 'projects/*/locations/*/clusters/*'.
  string name = 5;
}