DatabaseCluster

class aws_cdk.aws_neptune_alpha.DatabaseCluster(scope, id, *, instance_type, vpc, associated_roles=None, auto_minor_version_upgrade=None, backup_retention=None, cloudwatch_logs_exports=None, cloudwatch_logs_retention=None, cloudwatch_logs_retention_role=None, cluster_parameter_group=None, db_cluster_name=None, deletion_protection=None, engine_version=None, iam_authentication=None, instance_identifier_base=None, instances=None, kms_key=None, parameter_group=None, preferred_backup_window=None, preferred_maintenance_window=None, removal_policy=None, security_groups=None, serverless_scaling_configuration=None, storage_encrypted=None, subnet_group=None, vpc_subnets=None)

Bases: DatabaseClusterBase

(experimental) Create a clustered database with a given number of instances.

Stability:: experimental
Resource:: AWS::Neptune::DBCluster
ExampleMetadata:: infused

Example:

cluster = neptune.DatabaseCluster(self, "ServerlessDatabase",
    vpc=vpc,
    instance_type=neptune.InstanceType.SERVERLESS,
    serverless_scaling_configuration=neptune.ServerlessScalingConfiguration(
        min_capacity=1,
        max_capacity=5
    )
)

Parameters:

scope (Construct) –
id (str) –
instance_type (InstanceType) – (experimental) What type of instance to start for the replicas.
vpc (IVpc) – (experimental) What subnets to run the Neptune instances in. Must be at least 2 subnets in two different AZs.
associated_roles (Optional[Sequence[IRole]]) – (experimental) A list of AWS Identity and Access Management (IAM) role that can be used by the cluster to access other AWS services. Default: - No role is attached to the cluster.
auto_minor_version_upgrade (Optional[bool]) – (experimental) If set to true, Neptune will automatically update the engine of the entire cluster to the latest minor version after a stabilization window of 2 to 3 weeks. Default: - false
backup_retention (Optional[Duration]) – (experimental) How many days to retain the backup. Default: - cdk.Duration.days(1)
cloudwatch_logs_exports (Optional[Sequence[LogType]]) – (experimental) The list of log types that need to be enabled for exporting to CloudWatch Logs. Default: - no log exports
cloudwatch_logs_retention (Optional[RetentionDays]) – (experimental) The number of days log events are kept in CloudWatch Logs. When updating this property, unsetting it doesn’t remove the log retention policy. To remove the retention policy, set the value to Infinity. Default: - logs never expire
cloudwatch_logs_retention_role (Optional[IRole]) – (experimental) The IAM role for the Lambda function associated with the custom resource that sets the retention policy. Default: - a new role is created.
cluster_parameter_group (Optional[IClusterParameterGroup]) – (experimental) Additional parameters to pass to the database engine. Default: - No parameter group.
db_cluster_name (Optional[str]) – (experimental) An optional identifier for the cluster. Default: - A name is automatically generated.
deletion_protection (Optional[bool]) – (experimental) Indicates whether the DB cluster should have deletion protection enabled. Default: - true if removalPolicy is RETAIN, false otherwise
engine_version (Optional[EngineVersion]) – (experimental) What version of the database to start. Default: - The default engine version.
iam_authentication (Optional[bool]) – (experimental) Map AWS Identity and Access Management (IAM) accounts to database accounts. Default: - false
instance_identifier_base (Optional[str]) – (experimental) Base identifier for instances. Every replica is named by appending the replica number to this string, 1-based. Default: - dbClusterName is used with the word “Instance” appended. If dbClusterName is not provided, the identifier is automatically generated.
instances (Union[int, float, None]) – (experimental) Number of Neptune compute instances. Default: 1
kms_key (Optional[IKey]) – (experimental) The KMS key for storage encryption. Default: - default master key.
parameter_group (Optional[IParameterGroup]) – (experimental) The DB parameter group to associate with the instance. Default: no parameter group
preferred_backup_window (Optional[str]) – (experimental) A daily time range in 24-hours UTC format in which backups preferably execute. Must be at least 30 minutes long. Example: ‘01:00-02:00’ Default: - a 30-minute window selected at random from an 8-hour block of time for each AWS Region. To see the time blocks available, see
preferred_maintenance_window (Optional[str]) – (experimental) A weekly time range in which maintenance should preferably execute. Must be at least 30 minutes long. Example: ‘tue:04:17-tue:04:47’ Default: - 30-minute window selected at random from an 8-hour block of time for each AWS Region, occurring on a random day of the week.
removal_policy (Optional[RemovalPolicy]) – (experimental) The removal policy to apply when the cluster and its instances are removed or replaced during a stack update, or when the stack is deleted. This removal policy also applies to the implicit security group created for the cluster if one is not supplied as a parameter. Default: - Retain cluster.
security_groups (Optional[Sequence[ISecurityGroup]]) – (experimental) Security group. Default: a new security group is created.
serverless_scaling_configuration (Union[ServerlessScalingConfiguration, Dict[str, Any], None]) – (experimental) Specify minimum and maximum NCUs capacity for a serverless cluster. See https://docs.aws.amazon.com/neptune/latest/userguide/neptune-serverless-capacity-scaling.html Default: - required if instanceType is db.serverless
storage_encrypted (Optional[bool]) – (experimental) Whether to enable storage encryption. Default: true
subnet_group (Optional[ISubnetGroup]) – (experimental) Existing subnet group for the cluster. Default: - a new subnet group will be created.
vpc_subnets (Union[SubnetSelection, Dict[str, Any], None]) – (experimental) Where to place the instances within the VPC. Default: private subnets

Stability:

experimental

Methods

apply_removal_policy(policy)

Apply the given removal policy to this resource.

The Removal Policy controls what happens to this resource when it stops being managed by CloudFormation, either because you’ve removed it from the CDK application or because you’ve made a change that requires the resource to be replaced.

The resource can be deleted (RemovalPolicy.DESTROY), or left in your AWS account for data recovery and cleanup later (RemovalPolicy.RETAIN).

Parameters:

policy (RemovalPolicy) –

Return type:

None

grant(grantee, *actions)

(experimental) Grant the given identity the specified actions.

Parameters:

grantee (IGrantable) –
actions (str) –

Stability:

experimental

Return type:

Grant

grant_connect(grantee)

(experimental) Grant the given identity connection access to the database.

Parameters:

grantee (IGrantable) –

Stability:

experimental

Return type:

Grant

metric(metric_name, *, account=None, color=None, dimensions_map=None, label=None, period=None, region=None, statistic=None, unit=None)

(experimental) Return the given named metric associated with this DatabaseCluster instance.

Parameters:

metric_name (str) –
account (Optional[str]) – Account which this metric comes from. Default: - Deployment account.
color (Optional[str]) – The hex color code, prefixed with ‘#’ (e.g. ‘#00ff00’), to use when this metric is rendered on a graph. The Color class has a set of standard colors that can be used here. Default: - Automatic color
dimensions_map (Optional[Mapping[str, str]]) – Dimensions of the metric. Default: - No dimensions.
label (Optional[str]) – Label for this metric when added to a Graph in a Dashboard. You can use dynamic labels to show summary information about the entire displayed time series in the legend. For example, if you use:: [max: ${MAX}] MyMetric As the metric label, the maximum value in the visible range will be shown next to the time series name in the graph’s legend. Default: - No label
period (Optional[Duration]) – The period over which the specified statistic is applied. Default: Duration.minutes(5)
region (Optional[str]) – Region which this metric comes from. Default: - Deployment region.
statistic (Optional[str]) – What function to use for aggregating. Use the aws_cloudwatch.Stats helper class to construct valid input strings. Can be one of the following: - “Minimum” | “min” - “Maximum” | “max” - “Average” | “avg” - “Sum” | “sum” - “SampleCount | “n” - “pNN.NN” - “tmNN.NN” | “tm(NN.NN%:NN.NN%)” - “iqm” - “wmNN.NN” | “wm(NN.NN%:NN.NN%)” - “tcNN.NN” | “tc(NN.NN%:NN.NN%)” - “tsNN.NN” | “ts(NN.NN%:NN.NN%)” Default: Average
unit (Optional[Unit]) – Unit used to filter the metric stream. Only refer to datums emitted to the metric stream with the given unit and ignore all others. Only useful when datums are being emitted to the same metric stream under different units. The default is to use all matric datums in the stream, regardless of unit, which is recommended in nearly all cases. CloudWatch does not honor this property for graphs. Default: - All metric datums in the given metric stream

Stability:

experimental

Return type:

Metric

to_string()

Returns a string representation of this construct.

Return type:: str

Attributes

DEFAULT_NUM_INSTANCES = 1

cluster_endpoint

(experimental) The endpoint to use for read/write operations.

Stability:: experimental

cluster_identifier

(experimental) Identifier of the cluster.

Stability:: experimental

cluster_read_endpoint

(experimental) Endpoint to use for load-balanced read-only operations.

Stability:: experimental

cluster_resource_identifier

(experimental) The resource id for the cluster;

for example: cluster-ABCD1234EFGH5678IJKL90MNOP. The cluster ID uniquely identifies the cluster and is used in things like IAM authentication policies.

Stability:: experimental
Attribute:: ClusterResourceId

connections

(experimental) The connections object to implement IConnectable.

Stability:: experimental

env

The environment this resource belongs to.

For resources that are created and managed by the CDK (generally, those created by creating new class instances like Role, Bucket, etc.), this is always the same as the environment of the stack they belong to; however, for imported resources (those obtained from static methods like fromRoleArn, fromBucketName, etc.), that might be different than the stack they were imported into.

instance_endpoints

(experimental) Endpoints which address each individual instance.

Stability:: experimental

instance_identifiers

(experimental) Identifiers of the instance.

Stability:: experimental

node: The tree node.

stack: The stack in which this resource is defined.

subnet_group

(experimental) Subnet group used by the DB.

Stability:: experimental

vpc

(experimental) The VPC where the DB subnet group is created.

Stability:: experimental

vpc_subnets

(experimental) The subnets used by the DB subnet group.

Stability:: experimental

Static Methods

classmethod from_database_cluster_attributes(scope, id, *, cluster_endpoint_address, cluster_identifier, cluster_resource_identifier, port, reader_endpoint_address, security_group)

(experimental) Import an existing DatabaseCluster from properties.

Parameters:

scope (Construct) –
id (str) –
cluster_endpoint_address (str) – (experimental) Cluster endpoint address.
cluster_identifier (str) – (experimental) Identifier for the cluster.
cluster_resource_identifier (str) – (experimental) Resource Identifier for the cluster.
port (Union[int, float]) – (experimental) The database port.
reader_endpoint_address (str) – (experimental) Reader endpoint address.
security_group (ISecurityGroup) – (experimental) The security group of the database cluster.

Stability:

experimental

Return type:

IDatabaseCluster

classmethod is_construct(x)

Checks if x is a construct.

Use this method instead of instanceof to properly detect Construct instances, even when the construct library is symlinked.

Explanation: in JavaScript, multiple copies of the constructs library on disk are seen as independent, completely different libraries. As a consequence, the class Construct in each copy of the constructs library is seen as a different class, and an instance of one class will not test as instanceof the other class. npm install will not create installations like this, but users may manually symlink construct libraries together or use a monorepo tool: in those cases, multiple copies of the constructs library can be accidentally installed, and instanceof will behave unpredictably. It is safest to avoid using instanceof, and using this type-testing method instead.

Parameters:: x (Any) – Any object.
Return type:: bool
Returns:: true if x is an object created from a class which extends Construct.

classmethod is_owned_resource(construct)

Returns true if the construct was created by CDK, and false otherwise.

Parameters:

construct (IConstruct) –

Return type:

bool

classmethod is_resource(construct)

Check whether the given construct is a Resource.

Parameters:

construct (IConstruct) –

Return type:

bool