[ aws . docdb ]

modify-db-cluster

Description

Modifies a setting for an Amazon DocumentDB cluster. You can change one or more database configuration parameters by specifying these parameters and the new values in the request.

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.

Synopsis

  modify-db-cluster
--db-cluster-identifier <value>
[--new-db-cluster-identifier <value>]
[--apply-immediately | --no-apply-immediately]
[--backup-retention-period <value>]
[--db-cluster-parameter-group-name <value>]
[--vpc-security-group-ids <value>]
[--port <value>]
[--master-user-password <value>]
[--preferred-backup-window <value>]
[--preferred-maintenance-window <value>]
[--cloudwatch-logs-export-configuration <value>]
[--engine-version <value>]
[--deletion-protection | --no-deletion-protection]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options

--db-cluster-identifier (string)

The cluster identifier for the cluster that is being modified. This parameter is not case sensitive.

Constraints:

• Must match the identifier of an existing DBCluster .

--new-db-cluster-identifier (string)

The new cluster identifier for the cluster when renaming a cluster. This value is stored as a lowercase string.

Constraints:

• Must contain from 1 to 63 letters, numbers, or hyphens.

• The first character must be a letter.

• Cannot end with a hyphen or contain two consecutive hyphens.

Example: my-cluster2

--apply-immediately | --no-apply-immediately (boolean)

A value that specifies whether the changes in this request and any pending changes are asynchronously applied as soon as possible, regardless of the PreferredMaintenanceWindow setting for the cluster. If this parameter is set to false , changes to the cluster are applied during the next maintenance window.

The ApplyImmediately parameter affects only the NewDBClusterIdentifier and MasterUserPassword values. If you set this parameter value to false , the changes to the NewDBClusterIdentifier and MasterUserPassword values are applied during the next maintenance window. All other changes are applied immediately, regardless of the value of the ApplyImmediately parameter.

Default: false

--backup-retention-period (integer)

The number of days for which automated backups are retained. You must specify a minimum value of 1.

Default: 1

Constraints:

• Must be a value from 1 to 35.

--db-cluster-parameter-group-name (string)

The name of the cluster parameter group to use for the cluster.

--vpc-security-group-ids (list)

A list of virtual private cloud (VPC) security groups that the cluster will belong to.

(string)

Syntax:

"string" "string" ...

--port (integer)

The port number on which the cluster accepts connections.

Constraints: Must be a value from 1150 to 65535 .

Default: The same port as the original cluster.

--master-user-password (string)

The password for the master database user. This password can contain any printable ASCII character except forward slash (/), double quote (“), or the “at” symbol (@).

Constraints: Must contain from 8 to 100 characters.

--preferred-backup-window (string)

The daily time range during which automated backups are created if automated backups are enabled, using the BackupRetentionPeriod parameter.

The default is a 30-minute window selected at random from an 8-hour block of time for each AWS Region.

Constraints:

• Must be in the format hh24:mi-hh24:mi .

• Must be in Universal Coordinated Time (UTC).

• Must not conflict with the preferred maintenance window.

• Must be at least 30 minutes.

--preferred-maintenance-window (string)

The weekly time range during which system maintenance can occur, in Universal Coordinated Time (UTC).

Format: ddd:hh24:mi-ddd:hh24:mi

The default is a 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.

Valid days: Mon, Tue, Wed, Thu, Fri, Sat, Sun

Constraints: Minimum 30-minute window.

--cloudwatch-logs-export-configuration (structure)

The configuration setting for the log types to be enabled for export to Amazon CloudWatch Logs for a specific instance or cluster. The EnableLogTypes and DisableLogTypes arrays determine which logs are exported (or not exported) to CloudWatch Logs.

EnableLogTypes -> (list)

The list of log types to enable.

(string)

DisableLogTypes -> (list)

The list of log types to disable.

(string)

Shorthand Syntax:

EnableLogTypes=string,string,DisableLogTypes=string,string

JSON Syntax:

{
  "EnableLogTypes": ["string", ...],
  "DisableLogTypes": ["string", ...]
}

--engine-version (string)

The version number of the database engine to which you want to upgrade. Changing this parameter results in an outage. The change is applied during the next maintenance window unless the ApplyImmediately parameter is set to true .

--deletion-protection | --no-deletion-protection (boolean)

Specifies whether this cluster can be deleted. If DeletionProtection is enabled, the cluster cannot be deleted unless it is modified and DeletionProtection is disabled. DeletionProtection protects clusters from being accidentally deleted.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See ‘aws help’ for descriptions of global parameters.

Examples

To modify an Amazon DocumentDB cluster

The following modify-db-cluster example modifies the Amazon DocumentDB cluster sample-cluster by making the retention period for automatic backups 7 days, and changing the preferred windows for both backups and maintenance. All changes are applied at the next maintenance window.

aws docdb modify-db-cluster \
    --db-cluster-identifier sample-cluster \
    --no-apply-immediately \
    --backup-retention-period 7 \
    --preferred-backup-window 18:00-18:30 \
    --preferred-maintenance-window sun:20:00-sun:20:30

Output:

{
    "DBCluster": {
        "Endpoint": "sample-cluster.cluster-corcjozrlsfc.us-west-2.docdb.amazonaws.com",
        "DBClusterMembers": [
            {
                "DBClusterParameterGroupStatus": "in-sync",
                "DBInstanceIdentifier": "sample-cluster",
                "IsClusterWriter": true,
                "PromotionTier": 1
            },
            {
                "DBClusterParameterGroupStatus": "in-sync",
                "DBInstanceIdentifier": "sample-cluster2",
                "IsClusterWriter": false,
                "PromotionTier": 2
            }
        ],
        "HostedZoneId": "ZNKXH85TT8WVW",
        "StorageEncrypted": false,
        "PreferredBackupWindow": "18:00-18:30",
        "MultiAZ": true,
        "EngineVersion": "3.6.0",
        "MasterUsername": "master-user",
        "ReaderEndpoint": "sample-cluster.cluster-ro-corcjozrlsfc.us-west-2.docdb.amazonaws.com",
        "DBSubnetGroup": "default",
        "LatestRestorableTime": "2019-03-18T22:08:13.408Z",
        "EarliestRestorableTime": "2019-03-15T20:30:47.020Z",
        "PreferredMaintenanceWindow": "sun:20:00-sun:20:30",
        "AssociatedRoles": [],
        "EnabledCloudwatchLogsExports": [
            "audit"
        ],
        "Engine": "docdb",
        "DBClusterParameterGroup": "default.docdb3.6",
        "DBClusterArn": "arn:aws:rds:us-west-2:123456789012:cluster:sample-cluster",
        "BackupRetentionPeriod": 7,
        "DBClusterIdentifier": "sample-cluster",
        "AvailabilityZones": [
            "us-west-2a",
            "us-west-2c",
            "us-west-2b"
        ],
        "Status": "available",
        "DbClusterResourceId": "cluster-UP4EF2PVDDFVHHDJQTYDAIGHLE",
        "ClusterCreateTime": "2019-03-15T20:29:58.836Z",
        "VpcSecurityGroups": [
            {
                "VpcSecurityGroupId": "sg-77186e0d",
                "Status": "active"
            }
        ],
        "Port": 27017
    }
}

For more information, see Modifying an Amazon DocumentDB Cluster in the Amazon DocumentDB Developer Guide.

Output

DBCluster -> (structure)

Detailed information about a cluster.

AvailabilityZones -> (list)

Provides the list of Amazon EC2 Availability Zones that instances in the cluster can be created in.

(string)

BackupRetentionPeriod -> (integer)

Specifies the number of days for which automatic snapshots are retained.

DBClusterIdentifier -> (string)

Contains a user-supplied cluster identifier. This identifier is the unique key that identifies a cluster.

DBClusterParameterGroup -> (string)

Specifies the name of the cluster parameter group for the cluster.

DBSubnetGroup -> (string)

Specifies information on the subnet group that is associated with the cluster, including the name, description, and subnets in the subnet group.

Status -> (string)

Specifies the current state of this cluster.

PercentProgress -> (string)

Specifies the progress of the operation as a percentage.

EarliestRestorableTime -> (timestamp)

The earliest time to which a database can be restored with point-in-time restore.

Endpoint -> (string)

Specifies the connection endpoint for the primary instance of the cluster.

ReaderEndpoint -> (string)

The reader endpoint for the cluster. The reader endpoint for a cluster load balances connections across the Amazon DocumentDB replicas that are available in a cluster. As clients request new connections to the reader endpoint, Amazon DocumentDB distributes the connection requests among the Amazon DocumentDB replicas in the cluster. This functionality can help balance your read workload across multiple Amazon DocumentDB replicas in your cluster.

If a failover occurs, and the Amazon DocumentDB replica that you are connected to is promoted to be the primary instance, your connection is dropped. To continue sending your read workload to other Amazon DocumentDB replicas in the cluster, you can then reconnect to the reader endpoint.

MultiAZ -> (boolean)

Specifies whether the cluster has instances in multiple Availability Zones.

Engine -> (string)

Provides the name of the database engine to be used for this cluster.

EngineVersion -> (string)

Indicates the database engine version.

LatestRestorableTime -> (timestamp)

Specifies the latest time to which a database can be restored with point-in-time restore.

Port -> (integer)

Specifies the port that the database engine is listening on.

MasterUsername -> (string)

Contains the master user name for the cluster.

PreferredBackupWindow -> (string)

Specifies the daily time range during which automated backups are created if automated backups are enabled, as determined by the BackupRetentionPeriod .

PreferredMaintenanceWindow -> (string)

Specifies the weekly time range during which system maintenance can occur, in Universal Coordinated Time (UTC).

DBClusterMembers -> (list)

Provides the list of instances that make up the cluster.

(structure)

Contains information about an instance that is part of a cluster.

DBInstanceIdentifier -> (string)

Specifies the instance identifier for this member of the cluster.

IsClusterWriter -> (boolean)

A value that is true if the cluster member is the primary instance for the cluster and false otherwise.

DBClusterParameterGroupStatus -> (string)

Specifies the status of the cluster parameter group for this member of the DB cluster.

PromotionTier -> (integer)

A value that specifies the order in which an Amazon DocumentDB replica is promoted to the primary instance after a failure of the existing primary instance.

VpcSecurityGroups -> (list)

Provides a list of virtual private cloud (VPC) security groups that the cluster belongs to.

(structure)

Used as a response element for queries on virtual private cloud (VPC) security group membership.

VpcSecurityGroupId -> (string)

The name of the VPC security group.

Status -> (string)

The status of the VPC security group.

HostedZoneId -> (string)

Specifies the ID that Amazon Route 53 assigns when you create a hosted zone.

StorageEncrypted -> (boolean)

Specifies whether the cluster is encrypted.

KmsKeyId -> (string)

If StorageEncrypted is true , the AWS KMS key identifier for the encrypted cluster.

DbClusterResourceId -> (string)

The AWS Region-unique, immutable identifier for the cluster. This identifier is found in AWS CloudTrail log entries whenever the AWS KMS key for the cluster is accessed.

DBClusterArn -> (string)

The Amazon Resource Name (ARN) for the cluster.

AssociatedRoles -> (list)

Provides a list of the AWS Identity and Access Management (IAM) roles that are associated with the cluster. IAM roles that are associated with a cluster grant permission for the cluster to access other AWS services on your behalf.

(structure)

Describes an AWS Identity and Access Management (IAM) role that is associated with a cluster.

RoleArn -> (string)

The Amazon Resource Name (ARN) of the IAM role that is associated with the DB cluster.

Status -> (string)

Describes the state of association between the IAM role and the cluster. The Status property returns one of the following values:

• ACTIVE - The IAM role ARN is associated with the cluster and can be used to access other AWS services on your behalf.

• PENDING - The IAM role ARN is being associated with the DB cluster.

• INVALID - The IAM role ARN is associated with the cluster, but the cluster cannot assume the IAM role to access other AWS services on your behalf.

ClusterCreateTime -> (timestamp)

Specifies the time when the cluster was created, in Universal Coordinated Time (UTC).

EnabledCloudwatchLogsExports -> (list)

A list of log types that this cluster is configured to export to Amazon CloudWatch Logs.

(string)

DeletionProtection -> (boolean)

Specifies whether this cluster can be deleted. If DeletionProtection is enabled, the cluster cannot be deleted unless it is modified and DeletionProtection is disabled. DeletionProtection protects clusters from being accidentally deleted.