REST Resource: projects.locations.awsClusters.awsNodePools

Resource: AwsNodePool

An Anthos node pool running on AWS.

JSON representation 
{
  "name": string,
  "version": string,
  "config": {
    object (AwsNodeConfig)
  },
  "autoscaling": {
    object (AwsNodePoolAutoscaling)
  },
  "subnetId": string,
  "state": enum (State),
  "uid": string,
  "reconciling": boolean,
  "createTime": string,
  "updateTime": string,
  "etag": string,
  "annotations": {
    string: string,
    ...
  },
  "maxPodsConstraint": {
    object (MaxPodsConstraint)
  },
  "errors": [
    {
      object (AwsNodePoolError)
    }
  ],
  "management": {
    object (AwsNodeManagement)
  },
  "kubeletConfig": {
    object (NodeKubeletConfig)
  },
  "updateSettings": {
    object (UpdateSettings)
  }
}
Fields
name

string

The name of this resource.

Node pool names are formatted as projects/<project-number>/locations/<region>/awsClusters/<cluster-id>/awsNodePools/<node-pool-id>.

For more details on Google Cloud resource names, see Resource Names
version

string

Required. The Kubernetes version to run on this node pool (e.g. 1.19.10-gke.1000).

You can list all supported versions on a given Google Cloud region by calling locations.getAwsServerConfig.
config

object (AwsNodeConfig)

Required. The configuration of the node pool.
autoscaling

object (AwsNodePoolAutoscaling)

Required. Autoscaler configuration for this node pool.
subnetId

string

Required. The subnet where the node pool node run.
state

enum (State)

Output only. The lifecycle state of the node pool.
uid

string

Output only. A globally unique identifier for the node pool.
reconciling

boolean

Output only. If set, there are currently changes in flight to the node pool.
createTime

string (Timestamp format)

Output only. The time at which this node pool was created.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
updateTime

string (Timestamp format)

Output only. The time at which this node pool was last updated.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
etag

string

Allows clients to perform consistent read-modify-writes through optimistic concurrency control.

Can be sent on update and delete requests to ensure the client has an up-to-date value before proceeding.
annotations

map (key: string, value: string)

Optional. Annotations on the node pool.

This field has the same restrictions as Kubernetes annotations. The total size of all keys and values combined is limited to 256k. Key can have 2 segments: prefix (optional) and name (required), separated by a slash (/). Prefix must be a DNS subdomain. Name must be 63 characters or less, begin and end with alphanumerics, with dashes (-), underscores (_), dots (.), and alphanumerics between.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.
maxPodsConstraint

object (MaxPodsConstraint)

Required. The constraint on the maximum number of pods that can be run simultaneously on a node in the node pool.
errors[]

object (AwsNodePoolError)

Output only. A set of errors found in the node pool.
management

object (AwsNodeManagement)

Optional. The Management configuration for this node pool.
kubeletConfig

object (NodeKubeletConfig)

Optional. Node kubelet configs.
updateSettings

object (UpdateSettings)

Optional. Update settings control the speed and disruption of the update.

AwsNodeConfig

Parameters that describe the nodes in a cluster.

JSON representation 
{
  "instanceType": string,
  "rootVolume": {
    object (AwsVolumeTemplate)
  },
  "taints": [
    {
      object (NodeTaint)
    }
  ],
  "labels": {
    string: string,
    ...
  },
  "tags": {
    string: string,
    ...
  },
  "iamInstanceProfile": string,
  "imageType": string,
  "sshConfig": {
    object (AwsSshConfig)
  },
  "securityGroupIds": [
    string
  ],
  "proxyConfig": {
    object (AwsProxyConfig)
  },
  "configEncryption": {
    object (AwsConfigEncryption)
  },
  "instancePlacement": {
    object (AwsInstancePlacement)
  },
  "autoscalingMetricsCollection": {
    object (AwsAutoscalingGroupMetricsCollection)
  },
  "spotConfig": {
    object (SpotConfig)
  }
}
Fields
instanceType

string

Optional. The EC2 instance type when creating on-Demand instances.

If unspecified during node pool creation, a default will be chosen based on the node pool version, and assigned to this field.
rootVolume

object (AwsVolumeTemplate)

Optional. Template for the root volume provisioned for node pool nodes. Volumes will be provisioned in the availability zone assigned to the node pool subnet.

When unspecified, it defaults to 32 GiB with the GP2 volume type.
taints[]

object (NodeTaint)

Optional. The initial taints assigned to nodes of this node pool.
labels

map (key: string, value: string)

Optional. The initial labels assigned to nodes of this node pool. An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.
tags

map (key: string, value: string)

Optional. Key/value metadata to assign to each underlying AWS resource. Specify at most 50 pairs containing alphanumerics, spaces, and symbols (.+-=_:@/). Keys can be up to 127 Unicode characters. Values can be up to 255 Unicode characters.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.
iamInstanceProfile

string

Required. The name or ARN of the AWS IAM instance profile to assign to nodes in the pool.
imageType

string

Optional. The OS image type to use on node pool instances. Can be unspecified, or have a value of ubuntu.

When unspecified, it defaults to ubuntu.
sshConfig

object (AwsSshConfig)

Optional. The SSH configuration.
securityGroupIds[]

string

Optional. The IDs of additional security groups to add to nodes in this pool. The manager will automatically create security groups with minimum rules needed for a functioning cluster.
proxyConfig

object (AwsProxyConfig)

Optional. Proxy configuration for outbound HTTP(S) traffic.
configEncryption

object (AwsConfigEncryption)

Required. Config encryption for user data.
instancePlacement

object (AwsInstancePlacement)

Optional. Placement related info for this node. When unspecified, the VPC's default tenancy will be used.
autoscalingMetricsCollection

object (AwsAutoscalingGroupMetricsCollection)

Optional. Configuration related to CloudWatch metrics collection on the Auto Scaling group of the node pool.

When unspecified, metrics collection is disabled.
spotConfig

object (SpotConfig)

Optional. Configuration for provisioning EC2 Spot instances

When specified, the node pool will provision Spot instances from the set of spotConfig.instance_types. This field is mutually exclusive with instanceType.

AwsAutoscalingGroupMetricsCollection

Configuration related to CloudWatch metrics collection in an AWS Auto Scaling group.

JSON representation 
{
  "granularity": string,
  "metrics": [
    string
  ]
}
Fields
granularity

string

Required. The frequency at which EC2 Auto Scaling sends aggregated data to AWS CloudWatch. The only valid value is "1Minute".
metrics[]

string

Optional. The metrics to enable. For a list of valid metrics, see https://docs.aws.amazon.com/autoscaling/ec2/APIReference/API_EnableMetricsCollection.html. If you specify Granularity and don't specify any metrics, all metrics are enabled.

SpotConfig

SpotConfig has configuration info for Spot node.

JSON representation 
{
  "instanceTypes": [
    string
  ]
}
Fields
instanceTypes[]

string

Required. A list of instance types for creating spot node pool.

AwsNodePoolAutoscaling

AwsNodePoolAutoscaling contains information required by cluster autoscaler to adjust the size of the node pool to the current cluster usage.

JSON representation 
{
  "minNodeCount": integer,
  "maxNodeCount": integer
}
Fields
minNodeCount

integer

Required. Minimum number of nodes in the node pool. Must be greater than or equal to 1 and less than or equal to maxNodeCount.
maxNodeCount

integer

Required. Maximum number of nodes in the node pool. Must be greater than or equal to minNodeCount and less than or equal to 50.

State

The lifecycle state of the node pool.

Enums
STATE_UNSPECIFIED Not set.
PROVISIONING The PROVISIONING state indicates the node pool is being created.
RUNNING The RUNNING state indicates the node pool has been created and is fully usable.
RECONCILING The RECONCILING state indicates that the node pool is being reconciled.
STOPPING The STOPPING state indicates the node pool is being deleted.
ERROR The ERROR state indicates the node pool is in a broken unrecoverable state.
DEGRADED The DEGRADED state indicates the node pool requires user action to restore full functionality.

AwsNodePoolError

AwsNodePoolError describes errors found on AWS node pools.

JSON representation 
{
  "message": string
}
Fields
message

string

Human-friendly description of the error.

AwsNodeManagement

AwsNodeManagement defines the set of node management features turned on for an AWS node pool.

JSON representation 
{
  "autoRepair": boolean
}
Fields
autoRepair

boolean

Optional. Whether or not the nodes will be automatically repaired. When set to true, the nodes in this node pool will be monitored and if they fail health checks consistently over a period of time, an automatic repair action will be triggered to replace them with new nodes.

NodeKubeletConfig

Configuration for node pool kubelet options.

JSON representation 
{
  "insecureKubeletReadonlyPortEnabled": boolean,
  "cpuManagerPolicy": string,
  "cpuCfsQuota": boolean,
  "cpuCfsQuotaPeriod": string,
  "podPidsLimit": string
}
Fields
insecureKubeletReadonlyPortEnabled

boolean

Optional. Enable the insecure kubelet read only port.
cpuManagerPolicy

string

Optional. Control the CPU management policy on the node. See https://kubernetes.io/docs/tasks/administer-cluster/cpu-management-policies/

The following values are allowed. * "none": the default, which represents the existing scheduling behavior. * "static": allows pods with certain resource characteristics to be granted increased CPU affinity and exclusivity on the node. The default value is 'none' if unspecified.
cpuCfsQuota

boolean

Optional. Enable CPU CFS quota enforcement for containers that specify CPU limits.

This option is enabled by default which makes kubelet use CFS quota (https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt) to enforce container CPU limits. Otherwise, CPU limits will not be enforced at all.

Disable this option to mitigate CPU throttling problems while still having your pods to be in Guaranteed QoS class by specifying the CPU limits.

The default value is 'true' if unspecified.
cpuCfsQuotaPeriod

string

Optional. Set the CPU CFS quota period value 'cpu.cfs_period_us'.

The string must be a sequence of decimal numbers, each with optional fraction and a unit suffix, such as "300ms". Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h". The value must be a positive duration.

The default value is '100ms' if unspecified.
podPidsLimit

string (int64 format)

Optional. Set the Pod PID limits. See https://kubernetes.io/docs/concepts/policy/pid-limiting/#pod-pid-limits

Controls the maximum number of processes allowed to run in a pod. The value must be greater than or equal to 1024 and less than 4194304.

UpdateSettings

UpdateSettings control the level of parallelism and the level of disruption caused during the update of a node pool.

These settings are applicable when the node pool update requires replacing the existing node pool nodes with the updated ones.

UpdateSettings are optional. When UpdateSettings are not specified during the node pool creation, a default is chosen based on the parent cluster's version. For clusters with minor version 1.27 and later, a default surgeSettings configuration with maxSurge = 1 and maxUnavailable = 0 is used. For clusters with older versions, node pool updates use the traditional rolling update mechanism of updating one node at a time in a "terminate before create" fashion and updateSettings is not applicable.

Set the surgeSettings parameter to use the Surge Update mechanism for the rolling update of node pool nodes. 1. maxSurge controls the number of additional nodes that can be created beyond the current size of the node pool temporarily for the time of the update to increase the number of available nodes. 2. maxUnavailable controls the number of nodes that can be simultaneously unavailable during the update. 3. (maxSurge + maxUnavailable) determines the level of parallelism (i.e., the number of nodes being updated at the same time).

JSON representation 
{
  "surgeSettings": {
    object (SurgeSettings)
  }
}
Fields
surgeSettings

object (SurgeSettings)

Optional. Settings for surge update.

SurgeSettings

SurgeSettings contains the parameters for Surge update.

JSON representation 
{
  "maxSurge": integer,
  "maxUnavailable": integer
}
Fields
maxSurge

integer

Optional. The maximum number of nodes that can be created beyond the current size of the node pool during the update process.
maxUnavailable

integer

Optional. The maximum number of nodes that can be simultaneously unavailable during the update process. A node is considered unavailable if its status is not Ready.

Methods

create

 Creates a new AwsNodePool, attached to a given AwsCluster.

delete

 Deletes a specific AwsNodePool resource.

get

 Describes a specific AwsNodePool resource.

list

 Lists all AwsNodePool resources on a given AwsCluster.

patch

 Updates an AwsNodePool.

rollback

 Rolls back a previously aborted or failed AwsNodePool update request.