2017/03/07 - Amazon Relational Database Service - 3 updated api methods
Changes Add support to using encrypted clusters as cross-region replication masters. Update CopyDBClusterSnapshot API to support encrypted cross region copy of Aurora cluster snapshots.
{'CopyTags': 'boolean',
'KmsKeyId': 'string',
'PreSignedUrl': 'string',
'SourceRegion': 'string'}
Copies a snapshot of a DB cluster.
To copy a DB cluster snapshot from a shared manual DB cluster snapshot, SourceDBClusterSnapshotIdentifier must be the Amazon Resource Name (ARN) of the shared DB cluster snapshot.
You can copy an encrypted DB cluster snapshot from another AWS region. In that case, the region where you call the CopyDBClusterSnapshot action is the destination region for the encrypted DB cluster snapshot to be copied to. To copy an encrypted DB cluster snapshot from another region, you must provide the following values:
KmsKeyId - The AWS Key Management System (KMS) key identifier for the key to use to encrypt the copy of the DB cluster snapshot in the destination region.
PreSignedUrl - A URL that contains a Signature Version 4 signed request for the CopyDBClusterSnapshot action to be called in the source region where the DB cluster snapshot will be copied from. The pre-signed URL must be a valid request for the CopyDBClusterSnapshot API action that can be executed in the source region that contains the encrypted DB cluster snapshot to be copied. The pre-signed URL request must contain the following parameter values:
KmsKeyId - The KMS key identifier for the key to use to encrypt the copy of the DB cluster snapshot in the destination region. This is the same identifier for both the CopyDBClusterSnapshot action that is called in the destination region, and the action contained in the pre-signed URL.
DestinationRegion - The name of the region that the DB cluster snapshot will be created in.
SourceDBClusterSnapshotIdentifier - The DB cluster snapshot identifier for the encrypted DB cluster snapshot to be copied. This identifier must be in the Amazon Resource Name (ARN) format for the source region. For example, if you are copying an encrypted DB cluster snapshot from the us-west-2 region, then your SourceDBClusterSnapshotIdentifier looks like the following example: arn:aws:rds:us-west-2:123456789012:cluster-snapshot:aurora-cluster1-snapshot-20161115 .
To learn how to generate a Signature Version 4 signed request, see Authenticating Requests: Using Query Parameters (AWS Signature Version 4) and Signature Version 4 Signing Process .
TargetDBClusterSnapshotIdentifier - The identifier for the new copy of the DB cluster snapshot in the destination region.
SourceDBClusterSnapshotIdentifier - The DB cluster snapshot identifier for the encrypted DB cluster snapshot to be copied. This identifier must be in the ARN format for the source region and is the same value as the SourceDBClusterSnapshotIdentifier in the pre-signed URL.
To cancel the copy operation once it is in progress, delete the target DB cluster snapshot identified by TargetDBClusterSnapshotIdentifier while that DB cluster snapshot is in "copying" status.
For more information on copying encrypted DB cluster snapshots from one region to another, see Copying a DB Cluster Snapshot in the Same Account, Either in the Same Region or Across Regions in the Amazon RDS User Guide.
For more information on Amazon Aurora, see Aurora on Amazon RDS in the Amazon RDS User Guide.
See also: AWS API Documentation
Request Syntax
client.copy_db_cluster_snapshot(
SourceDBClusterSnapshotIdentifier='string',
TargetDBClusterSnapshotIdentifier='string',
KmsKeyId='string',
PreSignedUrl='string',
CopyTags=True|False,
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
SourceRegion='string'
)
string
[REQUIRED]
The identifier of the DB cluster snapshot to copy. This parameter is not case-sensitive.
Constraints:
Must contain from 1 to 63 alphanumeric characters or hyphens.
First character must be a letter.
Cannot end with a hyphen or contain two consecutive hyphens.
Example: my-cluster-snapshot1
string
[REQUIRED]
The identifier of the new DB cluster snapshot to create from the source DB cluster snapshot. This parameter is not case-sensitive.
Constraints:
Must contain from 1 to 63 alphanumeric characters or hyphens.
First character must be a letter.
Cannot end with a hyphen or contain two consecutive hyphens.
Example: my-cluster-snapshot2
string
The AWS KMS key ID for an encrypted DB cluster snapshot. The KMS key ID is the Amazon Resource Name (ARN), KMS key identifier, or the KMS key alias for the KMS encryption key.
If you copy an unencrypted DB cluster snapshot and specify a value for the KmsKeyId parameter, Amazon RDS encrypts the target DB cluster snapshot using the specified KMS encryption key.
If you copy an encrypted DB cluster snapshot from your AWS account, you can specify a value for KmsKeyId to encrypt the copy with a new KMS encryption key. If you don't specify a value for KmsKeyId , then the copy of the DB cluster snapshot is encrypted with the same KMS key as the source DB cluster snapshot.
If you copy an encrypted DB cluster snapshot that is shared from another AWS account, then you must specify a value for KmsKeyId .
To copy an encrypted DB cluster snapshot to another region, you must set KmsKeyId to the KMS key ID you want to use to encrypt the copy of the DB cluster snapshot in the destination region. KMS encryption keys are specific to the region that they are created in, and you cannot use encryption keys from one region in another region.
string
The URL that contains a Signature Version 4 signed request for the CopyDBClusterSnapshot API action in the AWS region that contains the source DB cluster snapshot to copy. The PreSignedUrl parameter must be used when copying an encrypted DB cluster snapshot from another AWS region.
The pre-signed URL must be a valid request for the CopyDBSClusterSnapshot API action that can be executed in the source region that contains the encrypted DB cluster snapshot to be copied. The pre-signed URL request must contain the following parameter values:
KmsKeyId - The KMS key identifier for the key to use to encrypt the copy of the DB cluster snapshot in the destination region. This is the same identifier for both the CopyDBClusterSnapshot action that is called in the destination region, and the action contained in the pre-signed URL.
DestinationRegion - The name of the region that the DB cluster snapshot will be created in.
SourceDBClusterSnapshotIdentifier - The DB cluster snapshot identifier for the encrypted DB cluster snapshot to be copied. This identifier must be in the Amazon Resource Name (ARN) format for the source region. For example, if you are copying an encrypted DB cluster snapshot from the us-west-2 region, then your SourceDBClusterSnapshotIdentifier looks like the following example: arn:aws:rds:us-west-2:123456789012:cluster-snapshot:aurora-cluster1-snapshot-20161115 .
To learn how to generate a Signature Version 4 signed request, see Authenticating Requests: Using Query Parameters (AWS Signature Version 4) and Signature Version 4 Signing Process .
boolean
list
A list of tags.
(dict) --
Metadata assigned to an Amazon RDS resource consisting of a key-value pair.
Key (string) --
A key is the required name of the tag. The string value can be from 1 to 128 Unicode characters in length and cannot be prefixed with "aws:" or "rds:". The string can only contain only the set of Unicode letters, digits, white-space, '_', '.', '/', '=', '+', '-' (Java regex: "^([\p{L}\p{Z}\p{N}_.:/=+\-]*)$").
Value (string) --
A value is the optional value of the tag. The string value can be from 1 to 256 Unicode characters in length and cannot be prefixed with "aws:" or "rds:". The string can only contain only the set of Unicode letters, digits, white-space, '_', '.', '/', '=', '+', '-' (Java regex: "^([\p{L}\p{Z}\p{N}_.:/=+\-]*)$").
string
The ID of the region that contains the snapshot to be copied.
dict
Response Syntax
{
'DBClusterSnapshot': {
'AvailabilityZones': [
'string',
],
'DBClusterSnapshotIdentifier': 'string',
'DBClusterIdentifier': 'string',
'SnapshotCreateTime': datetime(2015, 1, 1),
'Engine': 'string',
'AllocatedStorage': 123,
'Status': 'string',
'Port': 123,
'VpcId': 'string',
'ClusterCreateTime': datetime(2015, 1, 1),
'MasterUsername': 'string',
'EngineVersion': 'string',
'LicenseModel': 'string',
'SnapshotType': 'string',
'PercentProgress': 123,
'StorageEncrypted': True|False,
'KmsKeyId': 'string',
'DBClusterSnapshotArn': 'string'
}
}
Response Structure
(dict) --
DBClusterSnapshot (dict) --
Contains the result of a successful invocation of the following actions:
CreateDBClusterSnapshot
DeleteDBClusterSnapshot
This data type is used as a response element in the DescribeDBClusterSnapshots action.
AvailabilityZones (list) --
Provides the list of EC2 Availability Zones that instances in the DB cluster snapshot can be restored in.
(string) --
DBClusterSnapshotIdentifier (string) --
Specifies the identifier for the DB cluster snapshot.
DBClusterIdentifier (string) --
Specifies the DB cluster identifier of the DB cluster that this DB cluster snapshot was created from.
SnapshotCreateTime (datetime) --
Provides the time when the snapshot was taken, in Universal Coordinated Time (UTC).
Engine (string) --
Specifies the name of the database engine.
AllocatedStorage (integer) --
Specifies the allocated storage size in gigabytes (GB).
Status (string) --
Specifies the status of this DB cluster snapshot.
Port (integer) --
Specifies the port that the DB cluster was listening on at the time of the snapshot.
VpcId (string) --
Provides the VPC ID associated with the DB cluster snapshot.
ClusterCreateTime (datetime) --
Specifies the time when the DB cluster was created, in Universal Coordinated Time (UTC).
MasterUsername (string) --
Provides the master username for the DB cluster snapshot.
EngineVersion (string) --
Provides the version of the database engine for this DB cluster snapshot.
LicenseModel (string) --
Provides the license model information for this DB cluster snapshot.
SnapshotType (string) --
Provides the type of the DB cluster snapshot.
PercentProgress (integer) --
Specifies the percentage of the estimated data that has been transferred.
StorageEncrypted (boolean) --
Specifies whether the DB cluster snapshot is encrypted.
KmsKeyId (string) --
If StorageEncrypted is true, the KMS key identifier for the encrypted DB cluster snapshot.
DBClusterSnapshotArn (string) --
The Amazon Resource Name (ARN) for the DB cluster snapshot.
{'PreSignedUrl': 'string', 'SourceRegion': 'string'}
Creates a new Amazon Aurora DB cluster.
You can use the ReplicationSourceIdentifier parameter to create the DB cluster as a Read Replica of another DB cluster or Amazon RDS MySQL DB instance. For cross-region replication where the DB cluster identified by ReplicationSourceIdentifier is encrypted, you must also specify the PreSignedUrl parameter.
For more information on Amazon Aurora, see Aurora on Amazon RDS in the Amazon RDS User Guide.
See also: AWS API Documentation
Request Syntax
client.create_db_cluster(
AvailabilityZones=[
'string',
],
BackupRetentionPeriod=123,
CharacterSetName='string',
DatabaseName='string',
DBClusterIdentifier='string',
DBClusterParameterGroupName='string',
VpcSecurityGroupIds=[
'string',
],
DBSubnetGroupName='string',
Engine='string',
EngineVersion='string',
Port=123,
MasterUsername='string',
MasterUserPassword='string',
OptionGroupName='string',
PreferredBackupWindow='string',
PreferredMaintenanceWindow='string',
ReplicationSourceIdentifier='string',
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
StorageEncrypted=True|False,
KmsKeyId='string',
PreSignedUrl='string',
SourceRegion='string'
)
list
A list of EC2 Availability Zones that instances in the DB cluster can be created in. For information on regions and Availability Zones, see Regions and Availability Zones .
(string) --
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
string
A value that indicates that the DB cluster should be associated with the specified CharacterSet.
string
The name for your database of up to 8 alpha-numeric characters. If you do not provide a name, Amazon RDS will not create a database in the DB cluster you are creating.
string
[REQUIRED]
The DB cluster identifier. This parameter is stored as a lowercase string.
Constraints:
Must contain from 1 to 63 alphanumeric characters or hyphens.
First character must be a letter.
Cannot end with a hyphen or contain two consecutive hyphens.
Example: my-cluster1
string
The name of the DB cluster parameter group to associate with this DB cluster. If this argument is omitted, default.aurora5.6 will be used.
Constraints:
Must be 1 to 255 alphanumeric characters
First character must be a letter
Cannot end with a hyphen or contain two consecutive hyphens
list
A list of EC2 VPC security groups to associate with this DB cluster.
(string) --
string
A DB subnet group to associate with this DB cluster.
Constraints: Must contain no more than 255 alphanumeric characters, periods, underscores, spaces, or hyphens. Must not be default.
Example: mySubnetgroup
string
[REQUIRED]
The name of the database engine to be used for this DB cluster.
Valid Values: aurora
string
The version number of the database engine to use.
Aurora
Example: 5.6.10a
integer
The port number on which the instances in the DB cluster accept connections.
Default: 3306
string
The name of the master user for the DB cluster.
Constraints:
Must be 1 to 16 alphanumeric characters.
First character must be a letter.
Cannot be a reserved word for the chosen database engine.
string
The password for the master database user. This password can contain any printable ASCII character except "/", """, or "@".
Constraints: Must contain from 8 to 41 characters.
string
A value that indicates that the DB cluster should be associated with the specified option group.
Permanent options cannot be removed from an option group. The option group cannot be removed from a DB cluster once it is associated with a DB cluster.
string
The daily time range during which automated backups are created if automated backups are enabled using the BackupRetentionPeriod parameter.
Default: A 30-minute window selected at random from an 8-hour block of time per region. To see the time blocks available, see Adjusting the Preferred Maintenance Window in the Amazon RDS User Guide.
Constraints:
Must be in the format hh24:mi-hh24:mi .
Times should be in Universal Coordinated Time (UTC).
Must not conflict with the preferred maintenance window.
Must be at least 30 minutes.
string
The weekly time range during which system maintenance can occur, in Universal Coordinated Time (UTC).
Format: ddd:hh24:mi-ddd:hh24:mi
Default: A 30-minute window selected at random from an 8-hour block of time per region, occurring on a random day of the week. To see the time blocks available, see Adjusting the Preferred Maintenance Window in the Amazon RDS User Guide.
Valid Days: Mon, Tue, Wed, Thu, Fri, Sat, Sun
Constraints: Minimum 30-minute window.
string
The Amazon Resource Name (ARN) of the source DB instance or DB cluster if this DB cluster is created as a Read Replica.
list
A list of tags.
(dict) --
Metadata assigned to an Amazon RDS resource consisting of a key-value pair.
Key (string) --
A key is the required name of the tag. The string value can be from 1 to 128 Unicode characters in length and cannot be prefixed with "aws:" or "rds:". The string can only contain only the set of Unicode letters, digits, white-space, '_', '.', '/', '=', '+', '-' (Java regex: "^([\p{L}\p{Z}\p{N}_.:/=+\-]*)$").
Value (string) --
A value is the optional value of the tag. The string value can be from 1 to 256 Unicode characters in length and cannot be prefixed with "aws:" or "rds:". The string can only contain only the set of Unicode letters, digits, white-space, '_', '.', '/', '=', '+', '-' (Java regex: "^([\p{L}\p{Z}\p{N}_.:/=+\-]*)$").
boolean
Specifies whether the DB cluster is encrypted.
string
The KMS key identifier for an encrypted DB cluster.
The KMS key identifier is the Amazon Resource Name (ARN) for the KMS encryption key. If you are creating a DB cluster with the same AWS account that owns the KMS encryption key used to encrypt the new DB cluster, then you can use the KMS key alias instead of the ARN for the KMS encryption key.
If the StorageEncrypted parameter is true, and you do not specify a value for the KmsKeyId parameter, then Amazon RDS will use your default encryption key. AWS KMS creates the default encryption key for your AWS account. Your AWS account has a different default encryption key for each AWS region.
If you create a Read Replica of an encrypted DB cluster in another region, you must set KmsKeyId to a KMS key ID that is valid in the destination region. This key is used to encrypt the Read Replica in that region.
string
A URL that contains a Signature Version 4 signed request for the CreateDBCluster action to be called in the source region where the DB cluster will be replicated from. You only need to specify PreSignedUrl when you are performing cross-region replication from an encrypted DB cluster.
The pre-signed URL must be a valid request for the CreateDBCluster API action that can be executed in the source region that contains the encrypted DB cluster to be copied.
The pre-signed URL request must contain the following parameter values:
KmsKeyId - The KMS key identifier for the key to use to encrypt the copy of the DB cluster in the destination region. This should refer to the same KMS key for both the CreateDBCluster action that is called in the destination region, and the action contained in the pre-signed URL.
DestinationRegion - The name of the region that Aurora Read Replica will be created in.
ReplicationSourceIdentifier - The DB cluster identifier for the encrypted DB cluster to be copied. This identifier must be in the Amazon Resource Name (ARN) format for the source region. For example, if you are copying an encrypted DB cluster from the us-west-2 region, then your ReplicationSourceIdentifier would look like Example: arn:aws:rds:us-west-2:123456789012:cluster:aurora-cluster1 .
To learn how to generate a Signature Version 4 signed request, see Authenticating Requests: Using Query Parameters (AWS Signature Version 4) and Signature Version 4 Signing Process .
string
The ID of the region that contains the source for the read replica.
dict
Response Syntax
{
'DBCluster': {
'AllocatedStorage': 123,
'AvailabilityZones': [
'string',
],
'BackupRetentionPeriod': 123,
'CharacterSetName': 'string',
'DatabaseName': 'string',
'DBClusterIdentifier': 'string',
'DBClusterParameterGroup': 'string',
'DBSubnetGroup': 'string',
'Status': 'string',
'PercentProgress': 'string',
'EarliestRestorableTime': datetime(2015, 1, 1),
'Endpoint': 'string',
'ReaderEndpoint': 'string',
'MultiAZ': True|False,
'Engine': 'string',
'EngineVersion': 'string',
'LatestRestorableTime': datetime(2015, 1, 1),
'Port': 123,
'MasterUsername': 'string',
'DBClusterOptionGroupMemberships': [
{
'DBClusterOptionGroupName': 'string',
'Status': 'string'
},
],
'PreferredBackupWindow': 'string',
'PreferredMaintenanceWindow': 'string',
'ReplicationSourceIdentifier': 'string',
'ReadReplicaIdentifiers': [
'string',
],
'DBClusterMembers': [
{
'DBInstanceIdentifier': 'string',
'IsClusterWriter': True|False,
'DBClusterParameterGroupStatus': 'string',
'PromotionTier': 123
},
],
'VpcSecurityGroups': [
{
'VpcSecurityGroupId': 'string',
'Status': 'string'
},
],
'HostedZoneId': 'string',
'StorageEncrypted': True|False,
'KmsKeyId': 'string',
'DbClusterResourceId': 'string',
'DBClusterArn': 'string',
'AssociatedRoles': [
{
'RoleArn': 'string',
'Status': 'string'
},
],
'ClusterCreateTime': datetime(2015, 1, 1)
}
}
Response Structure
(dict) --
DBCluster (dict) --
Contains the result of a successful invocation of the following actions:
CreateDBCluster
DeleteDBCluster
FailoverDBCluster
ModifyDBCluster
RestoreDBClusterFromSnapshot
RestoreDBClusterToPointInTime
This data type is used as a response element in the DescribeDBClusters action.
AllocatedStorage (integer) --
Specifies the allocated storage size in gigabytes (GB).
AvailabilityZones (list) --
Provides the list of EC2 Availability Zones that instances in the DB cluster can be created in.
(string) --
BackupRetentionPeriod (integer) --
Specifies the number of days for which automatic DB snapshots are retained.
CharacterSetName (string) --
If present, specifies the name of the character set that this cluster is associated with.
DatabaseName (string) --
Contains the name of the initial database of this DB cluster that was provided at create time, if one was specified when the DB cluster was created. This same name is returned for the life of the DB cluster.
DBClusterIdentifier (string) --
Contains a user-supplied DB cluster identifier. This identifier is the unique key that identifies a DB cluster.
DBClusterParameterGroup (string) --
Specifies the name of the DB cluster parameter group for the DB cluster.
DBSubnetGroup (string) --
Specifies information on the subnet group associated with the DB cluster, including the name, description, and subnets in the subnet group.
Status (string) --
Specifies the current state of this DB cluster.
PercentProgress (string) --
Specifies the progress of the operation as a percentage.
EarliestRestorableTime (datetime) --
Specifies 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 DB cluster.
ReaderEndpoint (string) --
The reader endpoint for the DB cluster. The reader endpoint for a DB cluster load-balances connections across the Aurora Replicas that are available in a DB cluster. As clients request new connections to the reader endpoint, Aurora distributes the connection requests among the Aurora Replicas in the DB cluster. This functionality can help balance your read workload across multiple Aurora Replicas in your DB cluster.
If a failover occurs, and the Aurora Replica that you are connected to is promoted to be the primary instance, your connection will be dropped. To continue sending your read workload to other Aurora Replicas in the cluster, you can then recoonect to the reader endpoint.
MultiAZ (boolean) --
Specifies whether the DB cluster has instances in multiple Availability Zones.
Engine (string) --
Provides the name of the database engine to be used for this DB cluster.
EngineVersion (string) --
Indicates the database engine version.
LatestRestorableTime (datetime) --
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 username for the DB cluster.
DBClusterOptionGroupMemberships (list) --
Provides the list of option group memberships for this DB cluster.
(dict) --
Contains status information for a DB cluster option group.
DBClusterOptionGroupName (string) --
Specifies the name of the DB cluster option group.
Status (string) --
Specifies the status of the DB cluster option group.
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).
ReplicationSourceIdentifier (string) --
Contains the identifier of the source DB cluster if this DB cluster is a Read Replica.
ReadReplicaIdentifiers (list) --
Contains one or more identifiers of the Read Replicas associated with this DB cluster.
(string) --
DBClusterMembers (list) --
Provides the list of instances that make up the DB cluster.
(dict) --
Contains information about an instance that is part of a DB cluster.
DBInstanceIdentifier (string) --
Specifies the instance identifier for this member of the DB cluster.
IsClusterWriter (boolean) --
Value that is true if the cluster member is the primary instance for the DB cluster and false otherwise.
DBClusterParameterGroupStatus (string) --
Specifies the status of the DB cluster parameter group for this member of the DB cluster.
PromotionTier (integer) --
A value that specifies the order in which an Aurora Replica is promoted to the primary instance after a failure of the existing primary instance. For more information, see Fault Tolerance for an Aurora DB Cluster .
VpcSecurityGroups (list) --
Provides a list of VPC security groups that the DB cluster belongs to.
(dict) --
This data type is used as a response element for queries on 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 DB cluster is encrypted.
KmsKeyId (string) --
If StorageEncrypted is true, the KMS key identifier for the encrypted DB cluster.
DbClusterResourceId (string) --
The region-unique, immutable identifier for the DB cluster. This identifier is found in AWS CloudTrail log entries whenever the KMS key for the DB cluster is accessed.
DBClusterArn (string) --
The Amazon Resource Name (ARN) for the DB cluster.
AssociatedRoles (list) --
Provides a list of the AWS Identity and Access Management (IAM) roles that are associated with the DB cluster. IAM roles that are associated with a DB cluster grant permission for the DB cluster to access other AWS services on your behalf.
(dict) --
Describes an AWS Identity and Access Management (IAM) role that is associated with a DB 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 DB cluster. The Status property returns one of the following values:
ACTIVE - the IAM role ARN is associated with the DB 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 DB cluster, but the DB cluster is unable to assume the IAM role in order to access other AWS services on your behalf.
ClusterCreateTime (datetime) --
Specifies the time when the DB cluster was created, in Universal Coordinated Time (UTC).
{'SourceRegion': 'string'}
Creates a DB instance for a DB instance running MySQL, MariaDB, or PostgreSQL that acts as a Read Replica of a source DB instance.
All Read Replica DB instances are created as Single-AZ deployments with backups disabled. All other DB instance attributes (including DB security groups and DB parameter groups) are inherited from the source DB instance, except as specified below.
Warning
The source DB instance must have backup retention enabled.
You can create an encrypted Read Replica in a different AWS Region than the source DB instance. In that case, the region where you call the CreateDBInstanceReadReplica action is the destination region of the encrypted Read Replica. The source DB instance must be encrypted.
To create an encrypted Read Replica in another AWS Region, you must provide the following values:
KmsKeyId - The AWS Key Management System (KMS) key identifier for the key to use to encrypt the Read Replica in the destination region.
PreSignedUrl - A URL that contains a Signature Version 4 signed request for the CreateDBInstanceReadReplica API action in the AWS region that contains the source DB instance. The PreSignedUrl parameter must be used when encrypting a Read Replica from another AWS region. The presigned URL must be a valid request for the CreateDBInstanceReadReplica API action that can be executed in the source region that contains the encrypted DB instance. The presigned URL request must contain the following parameter values:
DestinationRegion - The AWS Region that the Read Replica is created in. This region is the same one where the CreateDBInstanceReadReplica action is called that contains this presigned URL. For example, if you create an encrypted Read Replica in the us-east-1 region, and the source DB instance is in the west-2 region, then you call the CreateDBInstanceReadReplica action in the us-east-1 region and provide a presigned URL that contains a call to the CreateDBInstanceReadReplica action in the us-west-2 region. For this example, the DestinationRegion in the presigned URL must be set to the us-east-1 region.
KmsKeyId - The KMS key identifier for the key to use to encrypt the Read Replica in the destination region. This is the same identifier for both the CreateDBInstanceReadReplica action that is called in the destination region, and the action contained in the presigned URL.
SourceDBInstanceIdentifier - The DB instance identifier for the encrypted Read Replica to be created. This identifier must be in the Amazon Resource Name (ARN) format for the source region. For example, if you create an encrypted Read Replica from a DB instance in the us-west-2 region, then your SourceDBInstanceIdentifier would look like this example: arn:aws:rds:us-west-2:123456789012:instance:mysql-instance1-instance-20161115 .
To learn how to generate a Signature Version 4 signed request, see Authenticating Requests: Using Query Parameters (AWS Signature Version 4) and Signature Version 4 Signing Process .
DBInstanceIdentifier - The identifier for the encrypted Read Replica in the destination region.
SourceDBInstanceIdentifier - The DB instance identifier for the encrypted Read Replica. This identifier must be in the ARN format for the source region and is the same value as the SourceDBInstanceIdentifier in the presigned URL.
See also: AWS API Documentation
Request Syntax
client.create_db_instance_read_replica(
DBInstanceIdentifier='string',
SourceDBInstanceIdentifier='string',
DBInstanceClass='string',
AvailabilityZone='string',
Port=123,
AutoMinorVersionUpgrade=True|False,
Iops=123,
OptionGroupName='string',
PubliclyAccessible=True|False,
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
DBSubnetGroupName='string',
StorageType='string',
CopyTagsToSnapshot=True|False,
MonitoringInterval=123,
MonitoringRoleArn='string',
KmsKeyId='string',
PreSignedUrl='string',
SourceRegion='string'
)
string
[REQUIRED]
The DB instance identifier of the Read Replica. This identifier is the unique key that identifies a DB instance. This parameter is stored as a lowercase string.
string
[REQUIRED]
The identifier of the DB instance that will act as the source for the Read Replica. Each DB instance can have up to five Read Replicas.
Constraints:
Must be the identifier of an existing MySQL, MariaDB, or PostgreSQL DB instance.
Can specify a DB instance that is a MySQL Read Replica only if the source is running MySQL 5.6.
Can specify a DB instance that is a PostgreSQL DB instance only if the source is running PostgreSQL 9.3.5 or later.
The specified DB instance must have automatic backups enabled, its backup retention period must be greater than 0.
If the source DB instance is in the same region as the Read Replica, specify a valid DB instance identifier.
If the source DB instance is in a different region than the Read Replica, specify a valid DB instance ARN. For more information, go to Constructing a Amazon RDS Amazon Resource Name (ARN) .
string
The compute and memory capacity of the Read Replica. Note that not all instance classes are available in all regions for all DB engines.
Valid Values: db.m1.small | db.m1.medium | db.m1.large | db.m1.xlarge | db.m2.xlarge |db.m2.2xlarge | db.m2.4xlarge | db.m3.medium | db.m3.large | db.m3.xlarge | db.m3.2xlarge | db.m4.large | db.m4.xlarge | db.m4.2xlarge | db.m4.4xlarge | db.m4.10xlarge | db.r3.large | db.r3.xlarge | db.r3.2xlarge | db.r3.4xlarge | db.r3.8xlarge | db.t2.micro | db.t2.small | db.t2.medium | db.t2.large
Default: Inherits from the source DB instance.
string
The Amazon EC2 Availability Zone that the Read Replica will be created in.
Default: A random, system-chosen Availability Zone in the endpoint's region.
Example: us-east-1d
integer
The port number that the DB instance uses for connections.
Default: Inherits from the source DB instance
Valid Values: 1150-65535
boolean
Indicates that minor engine upgrades will be applied automatically to the Read Replica during the maintenance window.
Default: Inherits from the source DB instance
integer
The amount of Provisioned IOPS (input/output operations per second) to be initially allocated for the DB instance.
string
The option group the DB instance will be associated with. If omitted, the default option group for the engine specified will be used.
boolean
Specifies the accessibility options for the DB instance. A value of true specifies an Internet-facing instance with a publicly resolvable DNS name, which resolves to a public IP address. A value of false specifies an internal instance with a DNS name that resolves to a private IP address.
Default: The default behavior varies depending on whether a VPC has been requested or not. The following list shows the default behavior in each case.
Default VPC: true
VPC: false
If no DB subnet group has been specified as part of the request and the PubliclyAccessible value has not been set, the DB instance will be publicly accessible. If a specific DB subnet group has been specified as part of the request and the PubliclyAccessible value has not been set, the DB instance will be private.
list
A list of tags.
(dict) --
Metadata assigned to an Amazon RDS resource consisting of a key-value pair.
Key (string) --
A key is the required name of the tag. The string value can be from 1 to 128 Unicode characters in length and cannot be prefixed with "aws:" or "rds:". The string can only contain only the set of Unicode letters, digits, white-space, '_', '.', '/', '=', '+', '-' (Java regex: "^([\p{L}\p{Z}\p{N}_.:/=+\-]*)$").
Value (string) --
A value is the optional value of the tag. The string value can be from 1 to 256 Unicode characters in length and cannot be prefixed with "aws:" or "rds:". The string can only contain only the set of Unicode letters, digits, white-space, '_', '.', '/', '=', '+', '-' (Java regex: "^([\p{L}\p{Z}\p{N}_.:/=+\-]*)$").
string
Specifies a DB subnet group for the DB instance. The new DB instance will be created in the VPC associated with the DB subnet group. If no DB subnet group is specified, then the new DB instance is not created in a VPC.
Constraints:
Can only be specified if the source DB instance identifier specifies a DB instance in another region.
The specified DB subnet group must be in the same region in which the operation is running.
All Read Replicas in one region that are created from the same source DB instance must either:>
Specify DB subnet groups from the same VPC. All these Read Replicas will be created in the same VPC.
Not specify a DB subnet group. All these Read Replicas will be created outside of any VPC.
Constraints: Must contain no more than 255 alphanumeric characters, periods, underscores, spaces, or hyphens. Must not be default.
Example: mySubnetgroup
string
Specifies the storage type to be associated with the Read Replica.
Valid values: standard | gp2 | io1
If you specify io1 , you must also include a value for the Iops parameter.
Default: io1 if the Iops parameter is specified; otherwise standard
boolean
True to copy all tags from the Read Replica to snapshots of the Read Replica; otherwise false. The default is false.
integer
The interval, in seconds, between points when Enhanced Monitoring metrics are collected for the Read Replica. To disable collecting Enhanced Monitoring metrics, specify 0. The default is 0.
If MonitoringRoleArn is specified, then you must also set MonitoringInterval to a value other than 0.
Valid Values: 0, 1, 5, 10, 15, 30, 60
string
The ARN for the IAM role that permits RDS to send enhanced monitoring metrics to CloudWatch Logs. For example, arn:aws:iam:123456789012:role/emaccess . For information on creating a monitoring role, go to To create an IAM role for Amazon RDS Enhanced Monitoring .
If MonitoringInterval is set to a value other than 0, then you must supply a MonitoringRoleArn value.
string
The AWS KMS key ID for an encrypted Read Replica. The KMS key ID is the Amazon Resource Name (ARN), KMS key identifier, or the KMS key alias for the KMS encryption key.
If you create an unencrypted Read Replica and specify a value for the KmsKeyId parameter, Amazon RDS encrypts the target Read Replica using the specified KMS encryption key.
If you create an encrypted Read Replica from your AWS account, you can specify a value for KmsKeyId to encrypt the Read Replica with a new KMS encryption key. If you don't specify a value for KmsKeyId , then the Read Replica is encrypted with the same KMS key as the source DB instance.
If you create an encrypted Read Replica in a different AWS region, then you must specify a KMS key for the destination AWS region. KMS encryption keys are specific to the region that they are created in, and you cannot use encryption keys from one region in another region.
string
The URL that contains a Signature Version 4 signed request for the CreateDBInstanceReadReplica API action in the AWS region that contains the source DB instance. The PreSignedUrl parameter must be used when encrypting a Read Replica from another AWS region.
The presigned URL must be a valid request for the CreateDBInstanceReadReplica API action that can be executed in the source region that contains the encrypted DB instance. The presigned URL request must contain the following parameter values:
DestinationRegion - The AWS Region that the Read Replica is created in. This region is the same one where the CreateDBInstanceReadReplica action is called that contains this presigned URL. For example, if you create an encrypted Read Replica in the us-east-1 region, and the source DB instance is in the west-2 region, then you call the CreateDBInstanceReadReplica action in the us-east-1 region and provide a presigned URL that contains a call to the CreateDBInstanceReadReplica action in the us-west-2 region. For this example, the DestinationRegion in the presigned URL must be set to the us-east-1 region.
KmsKeyId - The KMS key identifier for the key to use to encrypt the Read Replica in the destination region. This is the same identifier for both the CreateDBInstanceReadReplica action that is called in the destination region, and the action contained in the presigned URL.
SourceDBInstanceIdentifier - The DB instance identifier for the encrypted Read Replica to be created. This identifier must be in the Amazon Resource Name (ARN) format for the source region. For example, if you create an encrypted Read Replica from a DB instance in the us-west-2 region, then your SourceDBInstanceIdentifier would look like this example: arn:aws:rds:us-west-2:123456789012:instance:mysql-instance1-instance-20161115 .
To learn how to generate a Signature Version 4 signed request, see Authenticating Requests: Using Query Parameters (AWS Signature Version 4) and Signature Version 4 Signing Process .
string
The ID of the region that contains the source for the read replica.
dict
Response Syntax
{
'DBInstance': {
'DBInstanceIdentifier': 'string',
'DBInstanceClass': 'string',
'Engine': 'string',
'DBInstanceStatus': 'string',
'MasterUsername': 'string',
'DBName': 'string',
'Endpoint': {
'Address': 'string',
'Port': 123,
'HostedZoneId': 'string'
},
'AllocatedStorage': 123,
'InstanceCreateTime': datetime(2015, 1, 1),
'PreferredBackupWindow': 'string',
'BackupRetentionPeriod': 123,
'DBSecurityGroups': [
{
'DBSecurityGroupName': 'string',
'Status': 'string'
},
],
'VpcSecurityGroups': [
{
'VpcSecurityGroupId': 'string',
'Status': 'string'
},
],
'DBParameterGroups': [
{
'DBParameterGroupName': 'string',
'ParameterApplyStatus': 'string'
},
],
'AvailabilityZone': 'string',
'DBSubnetGroup': {
'DBSubnetGroupName': 'string',
'DBSubnetGroupDescription': 'string',
'VpcId': 'string',
'SubnetGroupStatus': 'string',
'Subnets': [
{
'SubnetIdentifier': 'string',
'SubnetAvailabilityZone': {
'Name': 'string'
},
'SubnetStatus': 'string'
},
],
'DBSubnetGroupArn': 'string'
},
'PreferredMaintenanceWindow': 'string',
'PendingModifiedValues': {
'DBInstanceClass': 'string',
'AllocatedStorage': 123,
'MasterUserPassword': 'string',
'Port': 123,
'BackupRetentionPeriod': 123,
'MultiAZ': True|False,
'EngineVersion': 'string',
'LicenseModel': 'string',
'Iops': 123,
'DBInstanceIdentifier': 'string',
'StorageType': 'string',
'CACertificateIdentifier': 'string',
'DBSubnetGroupName': 'string'
},
'LatestRestorableTime': datetime(2015, 1, 1),
'MultiAZ': True|False,
'EngineVersion': 'string',
'AutoMinorVersionUpgrade': True|False,
'ReadReplicaSourceDBInstanceIdentifier': 'string',
'ReadReplicaDBInstanceIdentifiers': [
'string',
],
'ReadReplicaDBClusterIdentifiers': [
'string',
],
'LicenseModel': 'string',
'Iops': 123,
'OptionGroupMemberships': [
{
'OptionGroupName': 'string',
'Status': 'string'
},
],
'CharacterSetName': 'string',
'SecondaryAvailabilityZone': 'string',
'PubliclyAccessible': True|False,
'StatusInfos': [
{
'StatusType': 'string',
'Normal': True|False,
'Status': 'string',
'Message': 'string'
},
],
'StorageType': 'string',
'TdeCredentialArn': 'string',
'DbInstancePort': 123,
'DBClusterIdentifier': 'string',
'StorageEncrypted': True|False,
'KmsKeyId': 'string',
'DbiResourceId': 'string',
'CACertificateIdentifier': 'string',
'DomainMemberships': [
{
'Domain': 'string',
'Status': 'string',
'FQDN': 'string',
'IAMRoleName': 'string'
},
],
'CopyTagsToSnapshot': True|False,
'MonitoringInterval': 123,
'EnhancedMonitoringResourceArn': 'string',
'MonitoringRoleArn': 'string',
'PromotionTier': 123,
'DBInstanceArn': 'string',
'Timezone': 'string'
}
}
Response Structure
(dict) --
DBInstance (dict) --
Contains the result of a successful invocation of the following actions:
CreateDBInstance
DeleteDBInstance
ModifyDBInstance
This data type is used as a response element in the DescribeDBInstances action.
DBInstanceIdentifier (string) --
Contains a user-supplied database identifier. This identifier is the unique key that identifies a DB instance.
DBInstanceClass (string) --
Contains the name of the compute and memory capacity class of the DB instance.
Engine (string) --
Provides the name of the database engine to be used for this DB instance.
DBInstanceStatus (string) --
Specifies the current state of this database.
MasterUsername (string) --
Contains the master username for the DB instance.
DBName (string) --
The meaning of this parameter differs according to the database engine you use. For example, this value returns MySQL, MariaDB, or PostgreSQL information when returning values from CreateDBInstanceReadReplica since Read Replicas are only supported for these engines.
MySQL, MariaDB, SQL Server, PostgreSQL, Amazon Aurora
Contains the name of the initial database of this instance that was provided at create time, if one was specified when the DB instance was created. This same name is returned for the life of the DB instance.
Type: String
Oracle
Contains the Oracle System ID (SID) of the created DB instance. Not shown when the returned parameters do not apply to an Oracle DB instance.
Endpoint (dict) --
Specifies the connection endpoint.
Address (string) --
Specifies the DNS address of the DB instance.
Port (integer) --
Specifies the port that the database engine is listening on.
HostedZoneId (string) --
Specifies the ID that Amazon Route 53 assigns when you create a hosted zone.
AllocatedStorage (integer) --
Specifies the allocated storage size specified in gigabytes.
InstanceCreateTime (datetime) --
Provides the date and time the DB instance was created.
PreferredBackupWindow (string) --
Specifies the daily time range during which automated backups are created if automated backups are enabled, as determined by the BackupRetentionPeriod .
BackupRetentionPeriod (integer) --
Specifies the number of days for which automatic DB snapshots are retained.
DBSecurityGroups (list) --
Provides List of DB security group elements containing only DBSecurityGroup.Name and DBSecurityGroup.Status subelements.
(dict) --
This data type is used as a response element in the following actions:
ModifyDBInstance
RebootDBInstance
RestoreDBInstanceFromDBSnapshot
RestoreDBInstanceToPointInTime
DBSecurityGroupName (string) --
The name of the DB security group.
Status (string) --
The status of the DB security group.
VpcSecurityGroups (list) --
Provides a list of VPC security group elements that the DB instance belongs to.
(dict) --
This data type is used as a response element for queries on VPC security group membership.
VpcSecurityGroupId (string) --
The name of the VPC security group.
Status (string) --
The status of the VPC security group.
DBParameterGroups (list) --
Provides the list of DB parameter groups applied to this DB instance.
(dict) --
The status of the DB parameter group.
This data type is used as a response element in the following actions:
CreateDBInstance
CreateDBInstanceReadReplica
DeleteDBInstance
ModifyDBInstance
RebootDBInstance
RestoreDBInstanceFromDBSnapshot
DBParameterGroupName (string) --
The name of the DP parameter group.
ParameterApplyStatus (string) --
The status of parameter updates.
AvailabilityZone (string) --
Specifies the name of the Availability Zone the DB instance is located in.
DBSubnetGroup (dict) --
Specifies information on the subnet group associated with the DB instance, including the name, description, and subnets in the subnet group.
DBSubnetGroupName (string) --
The name of the DB subnet group.
DBSubnetGroupDescription (string) --
Provides the description of the DB subnet group.
VpcId (string) --
Provides the VpcId of the DB subnet group.
SubnetGroupStatus (string) --
Provides the status of the DB subnet group.
Subnets (list) --
Contains a list of Subnet elements.
(dict) --
This data type is used as a response element in the DescribeDBSubnetGroups action.
SubnetIdentifier (string) --
Specifies the identifier of the subnet.
SubnetAvailabilityZone (dict) --
Contains Availability Zone information.
This data type is used as an element in the following data type:
OrderableDBInstanceOption
Name (string) --
The name of the availability zone.
SubnetStatus (string) --
Specifies the status of the subnet.
DBSubnetGroupArn (string) --
The Amazon Resource Name (ARN) for the DB subnet group.
PreferredMaintenanceWindow (string) --
Specifies the weekly time range during which system maintenance can occur, in Universal Coordinated Time (UTC).
PendingModifiedValues (dict) --
Specifies that changes to the DB instance are pending. This element is only included when changes are pending. Specific changes are identified by subelements.
DBInstanceClass (string) --
Contains the new DBInstanceClass for the DB instance that will be applied or is in progress.
AllocatedStorage (integer) --
Contains the new AllocatedStorage size for the DB instance that will be applied or is in progress.
MasterUserPassword (string) --
Contains the pending or in-progress change of the master credentials for the DB instance.
Port (integer) --
Specifies the pending port for the DB instance.
BackupRetentionPeriod (integer) --
Specifies the pending number of days for which automated backups are retained.
MultiAZ (boolean) --
Indicates that the Single-AZ DB instance is to change to a Multi-AZ deployment.
EngineVersion (string) --
Indicates the database engine version.
LicenseModel (string) --
The license model for the DB instance.
Valid values: license-included | bring-your-own-license | general-public-license
Iops (integer) --
Specifies the new Provisioned IOPS value for the DB instance that will be applied or is being applied.
DBInstanceIdentifier (string) --
Contains the new DBInstanceIdentifier for the DB instance that will be applied or is in progress.
StorageType (string) --
Specifies the storage type to be associated with the DB instance.
CACertificateIdentifier (string) --
Specifies the identifier of the CA certificate for the DB instance.
DBSubnetGroupName (string) --
The new DB subnet group for the DB instance.
LatestRestorableTime (datetime) --
Specifies the latest time to which a database can be restored with point-in-time restore.
MultiAZ (boolean) --
Specifies if the DB instance is a Multi-AZ deployment.
EngineVersion (string) --
Indicates the database engine version.
AutoMinorVersionUpgrade (boolean) --
Indicates that minor version patches are applied automatically.
ReadReplicaSourceDBInstanceIdentifier (string) --
Contains the identifier of the source DB instance if this DB instance is a Read Replica.
ReadReplicaDBInstanceIdentifiers (list) --
Contains one or more identifiers of the Read Replicas associated with this DB instance.
(string) --
ReadReplicaDBClusterIdentifiers (list) --
Contains one or more identifiers of Aurora DB clusters that are Read Replicas of this DB instance.
(string) --
LicenseModel (string) --
License model information for this DB instance.
Iops (integer) --
Specifies the Provisioned IOPS (I/O operations per second) value.
OptionGroupMemberships (list) --
Provides the list of option group memberships for this DB instance.
(dict) --
Provides information on the option groups the DB instance is a member of.
OptionGroupName (string) --
The name of the option group that the instance belongs to.
Status (string) --
The status of the DB instance's option group membership. Valid values are: in-sync , pending-apply , pending-removal , pending-maintenance-apply , pending-maintenance-removal , applying , removing , and failed .
CharacterSetName (string) --
If present, specifies the name of the character set that this instance is associated with.
SecondaryAvailabilityZone (string) --
If present, specifies the name of the secondary Availability Zone for a DB instance with multi-AZ support.
PubliclyAccessible (boolean) --
Specifies the accessibility options for the DB instance. A value of true specifies an Internet-facing instance with a publicly resolvable DNS name, which resolves to a public IP address. A value of false specifies an internal instance with a DNS name that resolves to a private IP address.
Default: The default behavior varies depending on whether a VPC has been requested or not. The following list shows the default behavior in each case.
Default VPC: true
VPC: false
If no DB subnet group has been specified as part of the request and the PubliclyAccessible value has not been set, the DB instance will be publicly accessible. If a specific DB subnet group has been specified as part of the request and the PubliclyAccessible value has not been set, the DB instance will be private.
StatusInfos (list) --
The status of a Read Replica. If the instance is not a Read Replica, this will be blank.
(dict) --
Provides a list of status information for a DB instance.
StatusType (string) --
This value is currently "read replication."
Normal (boolean) --
Boolean value that is true if the instance is operating normally, or false if the instance is in an error state.
Status (string) --
Status of the DB instance. For a StatusType of read replica, the values can be replicating, error, stopped, or terminated.
Message (string) --
Details of the error if there is an error for the instance. If the instance is not in an error state, this value is blank.
StorageType (string) --
Specifies the storage type associated with DB instance.
TdeCredentialArn (string) --
The ARN from the key store with which the instance is associated for TDE encryption.
DbInstancePort (integer) --
Specifies the port that the DB instance listens on. If the DB instance is part of a DB cluster, this can be a different port than the DB cluster port.
DBClusterIdentifier (string) --
If the DB instance is a member of a DB cluster, contains the name of the DB cluster that the DB instance is a member of.
StorageEncrypted (boolean) --
Specifies whether the DB instance is encrypted.
KmsKeyId (string) --
If StorageEncrypted is true, the KMS key identifier for the encrypted DB instance.
DbiResourceId (string) --
The region-unique, immutable identifier for the DB instance. This identifier is found in AWS CloudTrail log entries whenever the KMS key for the DB instance is accessed.
CACertificateIdentifier (string) --
The identifier of the CA certificate for this DB instance.
DomainMemberships (list) --
The Active Directory Domain membership records associated with the DB instance.
(dict) --
An Active Directory Domain membership record associated with the DB instance.
Domain (string) --
The identifier of the Active Directory Domain.
Status (string) --
The status of the DB instance's Active Directory Domain membership, such as joined, pending-join, failed etc).
FQDN (string) --
The fully qualified domain name of the Active Directory Domain.
IAMRoleName (string) --
The name of the IAM role to be used when making API calls to the Directory Service.
CopyTagsToSnapshot (boolean) --
Specifies whether tags are copied from the DB instance to snapshots of the DB instance.
MonitoringInterval (integer) --
The interval, in seconds, between points when Enhanced Monitoring metrics are collected for the DB instance.
EnhancedMonitoringResourceArn (string) --
The Amazon Resource Name (ARN) of the Amazon CloudWatch Logs log stream that receives the Enhanced Monitoring metrics data for the DB instance.
MonitoringRoleArn (string) --
The ARN for the IAM role that permits RDS to send Enhanced Monitoring metrics to CloudWatch Logs.
PromotionTier (integer) --
A value that specifies the order in which an Aurora Replica is promoted to the primary instance after a failure of the existing primary instance. For more information, see Fault Tolerance for an Aurora DB Cluster .
DBInstanceArn (string) --
The Amazon Resource Name (ARN) for the DB instance.
Timezone (string) --
The time zone of the DB instance. In most cases, the Timezone element is empty. Timezone content appears only for Microsoft SQL Server DB instances that were created with a time zone specified.