CfnCacheClusterProps Struct

Properties for defining a CfnCacheCluster.

Source: Generated code
Type last changed: v2.254.0 · 13 May 2026

Example

// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_elasticache as elasticache } from 'aws-cdk-lib';
const cfnCacheClusterProps: elasticache.CfnCacheClusterProps = {
  cacheNodeType: 'cacheNodeType',
  engine: 'engine',
  numCacheNodes: 123,

  // the properties below are optional
  autoMinorVersionUpgrade: false,
  azMode: 'azMode',
  cacheParameterGroupName: 'cacheParameterGroupName',
  cacheSecurityGroupNames: ['cacheSecurityGroupNames'],
  cacheSubnetGroupName: 'cacheSubnetGroupName',
  clusterName: 'clusterName',
  engineVersion: 'engineVersion',
  ipDiscovery: 'ipDiscovery',
  logDeliveryConfigurations: [{
    destinationDetails: {
      cloudWatchLogsDetails: {
        logGroup: 'logGroup',
      },
      kinesisFirehoseDetails: {
        deliveryStream: 'deliveryStream',
      },
    },
    destinationType: 'destinationType',
    logFormat: 'logFormat',
    logType: 'logType',
  }],
  networkType: 'networkType',
  notificationTopicArn: 'notificationTopicArn',
  port: 123,
  preferredAvailabilityZone: 'preferredAvailabilityZone',
  preferredAvailabilityZones: ['preferredAvailabilityZones'],
  preferredMaintenanceWindow: 'preferredMaintenanceWindow',
  snapshotArns: ['snapshotArns'],
  snapshotName: 'snapshotName',
  snapshotRetentionLimit: 123,
  snapshotWindow: 'snapshotWindow',
  tags: [{
    key: 'key',
    value: 'value',
  }],
  transitEncryptionEnabled: false,
  vpcSecurityGroupIds: ['vpcSecurityGroupIds'],
};

Properties

autoMinorVersionUpgradeboolean | IResolvableauto_minor_version_upgradetyping.Union[bool, IResolvable]autoMinorVersionUpgradeBooleanAutoMinorVersionUpgradeboolAutoMinorVersionUpgradeinterface{}#

If you are running Valkey 7.2 or later, or Redis OSS engine version 6.0 or later, set this parameter to yes if you want to opt-in to the next minor version upgrade campaign. This parameter is disabled for previous versions.

azModestringaz_modestrazModeStringAzModestringAzMode*string#

Specifies whether the nodes in this Memcached cluster are created in a single Availability Zone or created across multiple Availability Zones in the cluster's region.

This parameter is only supported for Memcached clusters.

If the AZMode and PreferredAvailabilityZones are not specified, ElastiCache assumes single-az mode.

cacheNodeTypestringcache_node_typestrcacheNodeTypeStringCacheNodeTypestringCacheNodeType*stringrequired#

The compute and memory capacity of the nodes in the node group (shard).

notes

The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts. Changing the CacheNodeType of a Memcached instance is currently not supported. If you need to scale using Memcached, we recommend forcing a replacement update by changing the LogicalResourceId of the resource.

General purpose:
Current generation:

M6g node types: cache.m6g.large , cache.m6g.xlarge , cache.m6g.2xlarge , cache.m6g.4xlarge , cache.m6g.8xlarge , cache.m6g.12xlarge , cache.m6g.16xlarge , cache.m6g.24xlarge

M5 node types: cache.m5.large , cache.m5.xlarge , cache.m5.2xlarge , cache.m5.4xlarge , cache.m5.12xlarge , cache.m5.24xlarge

M4 node types: cache.m4.large , cache.m4.xlarge , cache.m4.2xlarge , cache.m4.4xlarge , cache.m4.10xlarge

T4g node types: cache.t4g.micro , cache.t4g.small , cache.t4g.medium

T3 node types: cache.t3.micro , cache.t3.small , cache.t3.medium

T2 node types: cache.t2.micro , cache.t2.small , cache.t2.medium

Previous generation: (not recommended)

T1 node types: cache.t1.micro

M1 node types: cache.m1.small , cache.m1.medium , cache.m1.large , cache.m1.xlarge

M3 node types: cache.m3.medium , cache.m3.large , cache.m3.xlarge , cache.m3.2xlarge

Compute optimized:
Previous generation: (not recommended)

C1 node types: cache.c1.xlarge

Memory optimized:
Current generation:

R6gd node types: cache.r6gd.xlarge , cache.r6gd.2xlarge , cache.r6gd.4xlarge , cache.r6gd.8xlarge , cache.r6gd.12xlarge , cache.r6gd.16xlarge

The r6gd family is available in the following regions: us-east-2 , us-east-1 , us-west-2 , us-west-1 , eu-west-1 , eu-central-1 , ap-northeast-1 , ap-southeast-1 , ap-southeast-2 .

R6g node types: cache.r6g.large , cache.r6g.xlarge , cache.r6g.2xlarge , cache.r6g.4xlarge , cache.r6g.8xlarge , cache.r6g.12xlarge , cache.r6g.16xlarge , cache.r6g.24xlarge

R5 node types: cache.r5.large , cache.r5.xlarge , cache.r5.2xlarge , cache.r5.4xlarge , cache.r5.12xlarge , cache.r5.24xlarge

R4 node types: cache.r4.large , cache.r4.xlarge , cache.r4.2xlarge , cache.r4.4xlarge , cache.r4.8xlarge , cache.r4.16xlarge

Previous generation: (not recommended)

M2 node types: cache.m2.xlarge , cache.m2.2xlarge , cache.m2.4xlarge

R3 node types: cache.r3.large , cache.r3.xlarge , cache.r3.2xlarge , cache.r3.4xlarge , cache.r3.8xlarge

For region availability, see Supported Node Types by Region

Additional node type info

All current generation instance types are created in Amazon VPC by default.
Valkey and Redis OSS append-only files (AOF) are not supported for T1 or T2 instances.
Valkey and Redis OSS Multi-AZ with automatic failover is not supported on T1 instances.
Redis OSS configuration variables appendonly and appendfsync are not supported on Redis OSS version 2.8.22 and later.

cacheParameterGroupNamestringcache_parameter_group_namestrcacheParameterGroupNameStringCacheParameterGroupNamestringCacheParameterGroupName*string#

The name of the parameter group to associate with this cluster.

If this argument is omitted, the default parameter group for the specified engine is used. You cannot use any parameter group which has cluster-enabled='yes' when creating a cluster.

cacheSecurityGroupNamesstring[]cache_security_group_namestyping.List[str]cacheSecurityGroupNamesList<String>CacheSecurityGroupNamesstring[]CacheSecurityGroupNames*[]*stringdeprecated#

this property has been deprecated

Use this parameter only when you are creating a cluster outside of an Amazon Virtual Private Cloud (Amazon VPC).

cacheSubnetGroupNamestringcache_subnet_group_namestrcacheSubnetGroupNameStringCacheSubnetGroupNamestringCacheSubnetGroupName*string#

The name of the subnet group to be used for the cluster.

notes

Use this parameter only when you are creating a cluster in an Amazon Virtual Private Cloud (Amazon VPC).

If you're going to launch your cluster in an Amazon VPC, you need to create a subnet group before you start creating a cluster. For more information, see [AWS::ElastiCache::SubnetGroup](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-elasticache-subnetgroup.html) .

clusterNamestringcluster_namestrclusterNameStringClusterNamestringClusterName*string#

A name for the cache cluster.

notes

If you don't specify a name, CloudFormation generates a unique physical ID and uses that ID for the cache cluster. For more information, see Name Type .

The name must contain 1 to 50 alphanumeric characters or hyphens. The name must start with a letter and cannot end with a hyphen or contain two consecutive hyphens.

enginestringenginestrengineStringEnginestringEngine*stringrequired#

The name of the cache engine to be used for this cluster.

Valid values for this parameter are: memcached | valkey | redis

engineVersionstringengine_versionstrengineVersionStringEngineVersionstringEngineVersion*string#

The version number of the cache engine to be used for this cluster.

notes

To view the supported cache engine versions, use the DescribeCacheEngineVersions operation.

Important: You can upgrade to a newer engine version (see Selecting a Cache Engine and Version ), but you cannot downgrade to an earlier engine version. If you want to use an earlier engine version, you must delete the existing cluster or replication group and create it anew with the earlier engine version.

ipDiscoverystringip_discoverystripDiscoveryStringIpDiscoverystringIpDiscovery*string#

The network type you choose when modifying a cluster, either `ipv4` | `ipv6` .

IPv6 is supported for workloads using Valkey 7.2 and above, Redis OSS engine version 6.2 to 7.1 and Memcached engine version 1.6.6 and above on all instances built on the Nitro system .

logDeliveryConfigurationsIResolvable | IResolvable | CfnCacheCluster.LogDeliveryConfigurationRequestProperty[]log_delivery_configurationstyping.Union[IResolvable, typing.List[typing.Union[IResolvable, LogDeliveryConfigurationRequestProperty]]]logDeliveryConfigurationsIResolvableLogDeliveryConfigurationsIResolvableLogDeliveryConfigurationsinterface{}#

Specifies the destination, format and type of the logs.

networkTypestringnetwork_typestrnetworkTypeStringNetworkTypestringNetworkType*string#

Must be either `ipv4` | `ipv6` | `dual_stack` .

IPv6 is supported for workloads using Valkey 7.2 and above, Redis OSS engine version 6.2 to 7.1 and Memcached engine version 1.6.6 and above on all instances built on the Nitro system .

notificationTopicArnstringnotification_topic_arnstrnotificationTopicArnStringNotificationTopicArnstringNotificationTopicArn*string#

The Amazon Resource Name (ARN) of the Amazon Simple Notification Service (SNS) topic to which notifications are sent.

The Amazon SNS topic owner must be the same as the cluster owner.

numCacheNodesnumbernum_cache_nodesint | floatnumCacheNodesNumberNumCacheNodesdoubleNumCacheNodes*float64required#

The number of cache nodes that the cache cluster should have.

notes

However, if the PreferredAvailabilityZone and PreferredAvailabilityZones properties were not previously specified and you don't specify any new values, an update requires replacement .

portnumberportint | floatportNumberPortdoublePort*float64#

The port number on which each of the cache nodes accepts connections.

preferredAvailabilityZonestringpreferred_availability_zonestrpreferredAvailabilityZoneStringPreferredAvailabilityZonestringPreferredAvailabilityZone*string#

The EC2 Availability Zone in which the cluster is created.

All nodes belonging to this cluster are placed in the preferred Availability Zone. If you want to create your nodes across multiple Availability Zones, use PreferredAvailabilityZones .

Default: System chosen Availability Zone.

preferredAvailabilityZonesstring[]preferred_availability_zonestyping.List[str]preferredAvailabilityZonesList<String>PreferredAvailabilityZonesstring[]PreferredAvailabilityZones*[]*string#

A list of the Availability Zones in which cache nodes are created.

notes

The order of the zones in the list is not important.

This option is only supported on Memcached.

If you are creating your cluster in an Amazon VPC (recommended) you can only locate nodes in Availability Zones that are associated with the subnets in the selected subnet group.
The number of Availability Zones listed must equal the value of NumCacheNodes .

If you want all the nodes in the same Availability Zone, use PreferredAvailabilityZone instead, or repeat the Availability Zone multiple times in the list.

Default: System chosen Availability Zones.

preferredMaintenanceWindowstringpreferred_maintenance_windowstrpreferredMaintenanceWindowStringPreferredMaintenanceWindowstringPreferredMaintenanceWindow*string#

Specifies the weekly time range during which maintenance on the cluster is performed.

notes

It is specified as a range in the format ddd:hh24:mi-ddd:hh24:mi (24H Clock UTC). The minimum maintenance window is a 60 minute period.

Valid values for ddd are:

sun
mon
tue
wed
thu
fri
sat

Example: sun:23:00-mon:01:30

snapshotArnsstring[]snapshot_arnstyping.List[str]snapshotArnsList<String>SnapshotArnsstring[]SnapshotArns*[]*string#

A single-element string list containing an Amazon Resource Name (ARN) that uniquely identifies a Valkey or Redis OSS RDB snapshot file stored in Amazon S3.

notes

The snapshot file is used to populate the node group (shard). The Amazon S3 object name in the ARN cannot contain any commas.

This parameter is only valid if the Engine parameter is redis .

Example of an Amazon S3 ARN: arn:aws:s3:::my_bucket/snapshot1.rdb

snapshotNamestringsnapshot_namestrsnapshotNameStringSnapshotNamestringSnapshotName*string#

The name of a Valkey or Redis OSS snapshot from which to restore data into the new node group (shard).

The snapshot status changes to restoring while the new node group (shard) is being created.

This parameter is only valid if the Engine parameter is redis .

snapshotRetentionLimitnumbersnapshot_retention_limitint | floatsnapshotRetentionLimitNumberSnapshotRetentionLimitdoubleSnapshotRetentionLimit*float64#

The number of days for which ElastiCache retains automatic snapshots before deleting them.

notes

For example, if you set SnapshotRetentionLimit to 5, a snapshot taken today is retained for 5 days before being deleted.

This parameter is only valid if the Engine parameter is redis .

Default: 0 (i.e., automatic backups are disabled for this cache cluster).

snapshotWindowstringsnapshot_windowstrsnapshotWindowStringSnapshotWindowstringSnapshotWindow*string#

The daily time range (in UTC) during which ElastiCache begins taking a daily snapshot of your node group (shard).

Example: 05:00-09:00

If you do not specify this parameter, ElastiCache automatically chooses an appropriate time range.

This parameter is only valid if the Engine parameter is redis .

tagsCfnTag[]tagstyping.List[CfnTag]tagsList<CfnTag>TagsCfnTag[]Tags*[]CfnTag#

A list of tags to be added to this resource.

transitEncryptionEnabledboolean | IResolvabletransit_encryption_enabledtyping.Union[bool, IResolvable]transitEncryptionEnabledBooleanTransitEncryptionEnabledboolTransitEncryptionEnabledinterface{}#

A flag that enables in-transit encryption when set to true.

vpcSecurityGroupIdsstring[]vpc_security_group_idstyping.List[str]vpcSecurityGroupIdsList<String>VpcSecurityGroupIdsstring[]VpcSecurityGroupIds*[]*string#

One or more VPC security groups associated with the cluster.

Use this parameter only when you are creating a cluster in an Amazon Virtual Private Cloud (Amazon VPC).

Used as props by

CfnCacheCluster

CfnCacheClusterProps Struct ​

Example ​

Properties ​

Used as props by ​

CfnCacheClusterProps Struct

Example

Properties

Used as props by