Class: Aws::RDS::DBClusterSnapshot

Inherits:
Object
  • Object
show all
Defined in:
gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb

Defined Under Namespace

Classes: Collection

Read-Only Attributes collapse

Actions collapse

Associations collapse

Instance Method Summary collapse

Constructor Details

#initialize(cluster_id, snapshot_id, options = {}) ⇒ DBClusterSnapshot #initialize(options = {}) ⇒ DBClusterSnapshot

Returns a new instance of DBClusterSnapshot.

Overloads:

  • #initialize(cluster_id, snapshot_id, options = {}) ⇒ DBClusterSnapshot

    Parameters:

    • cluster_id (String)
    • snapshot_id (String)

    Options Hash (options):

  • #initialize(options = {}) ⇒ DBClusterSnapshot

    Options Hash (options):

    • :cluster_id (required, String)
    • :snapshot_id (required, String)
    • :client (Client)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 24

def initialize(*args)
  options = Hash === args.last ? args.pop.dup : {}
  @cluster_id = extract_cluster_id(args, options)
  @snapshot_id = extract_snapshot_id(args, options)
  @data = options.delete(:data)
  @client = options.delete(:client) || Client.new(options)
  @waiter_block_warned = false
end

Instance Method Details

#allocated_storageInteger

Specifies the allocated storage size in gibibytes (GiB).

Returns:

  • (Integer)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 69

def allocated_storage
  data[:allocated_storage]
end

#availability_zonesArray<String>

Provides the list of Availability Zones (AZs) where instances in the DB cluster snapshot can be restored.

Returns:

  • (Array<String>)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 50

def availability_zones
  data[:availability_zones]
end

#clientClient

Returns:



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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 179

def client
  @client
end

#clusterDBCluster

Returns:



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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 714

def cluster
  DBCluster.new(
    id: @cluster_id,
    client: @client
  )
end

#cluster_create_timeTime

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

Returns:

  • (Time)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 95

def cluster_create_time
  data[:cluster_create_time]
end

#cluster_idString Also known as: db_cluster_identifier

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 36

def cluster_id
  @cluster_id
end

#copy(options = {}) ⇒ DBClusterSnapshot

Examples:

Request syntax with placeholder values


dbclustersnapshot = db_cluster_snapshot.copy({
  target_db_cluster_snapshot_identifier: "String", # required
  kms_key_id: "String",
  pre_signed_url: "String",
  copy_tags: false,
  tags: [
    {
      key: "String",
      value: "String",
    },
  ],
  source_region: "String",
})

Parameters:

  • options (Hash) (defaults to: {})

    ({})

Options Hash (options):

  • :target_db_cluster_snapshot_identifier (required, String)

    The identifier of the new DB cluster snapshot to create from the source DB cluster snapshot. This parameter isn't case-sensitive.

    Constraints:

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

    • First character must be a letter.

    • Can't end with a hyphen or contain two consecutive hyphens.

    Example: my-cluster-snapshot2

  • :kms_key_id (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 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 AWS 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 AWS Region. KMS encryption keys are specific to the AWS Region that they are created in, and you can't use encryption keys from one AWS Region in another AWS Region.

    If you copy an unencrypted DB cluster snapshot and specify a value for the KmsKeyId parameter, an error is returned.

  • :pre_signed_url (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. Don't specify PreSignedUrl when you are copying an encrypted DB cluster snapshot in the same AWS Region.

    The pre-signed URL must be a valid request for the CopyDBClusterSnapshot API action that can be executed in the source AWS Region that contains the encrypted DB cluster snapshot to be copied. The pre-signed URL request must contain the following parameter values:

    • KmsKeyId - The AWS KMS key identifier for the key to use to encrypt the copy of the DB cluster snapshot in the destination AWS Region. This is the same identifier for both the CopyDBClusterSnapshot action that is called in the destination AWS Region, and the action contained in the pre-signed URL.

    • DestinationRegion - The name of the AWS Region that the DB cluster snapshot is to 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 AWS Region. For example, if you are copying an encrypted DB cluster snapshot from the us-west-2 AWS 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.

    If you are using an AWS SDK tool or the AWS CLI, you can specify SourceRegion (or --source-region for the AWS CLI) instead of specifying PreSignedUrl manually. Specifying SourceRegion autogenerates a pre-signed URL that is a valid request for the operation that can be executed in the source AWS Region.

  • :copy_tags (Boolean)

    A value that indicates whether to copy all tags from the source DB cluster snapshot to the target DB cluster snapshot. By default, tags are not copied.

  • :tags (Array<Types::Tag>)

    A list of tags. For more information, see Tagging Amazon RDS Resources in the Amazon RDS User Guide.

  • :destination_region (String)
  • :source_region (String)

    The source region of the snapshot. This is only needed when the shapshot is encrypted and in a different region.

Returns:



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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 454

def copy(options = {})
  options = options.merge(source_db_cluster_snapshot_identifier: @snapshot_id)
  resp = @client.copy_db_cluster_snapshot(options)
  DBClusterSnapshot.new(
    cluster_id: resp.data.db_cluster_snapshot.db_cluster_identifier,
    snapshot_id: resp.data.db_cluster_snapshot.db_cluster_snapshot_identifier,
    data: resp.data.db_cluster_snapshot,
    client: @client
  )
end

#create(options = {}) ⇒ DBClusterSnapshot

Examples:

Request syntax with placeholder values


dbclustersnapshot = db_cluster_snapshot.create({
  tags: [
    {
      key: "String",
      value: "String",
    },
  ],
})

Parameters:

  • options (Hash) (defaults to: {})

    ({})

Options Hash (options):

  • :tags (Array<Types::Tag>)

    The tags to be assigned to the DB cluster snapshot.

Returns:



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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 324

def create(options = {})
  options = options.merge(
    db_cluster_identifier: @cluster_id,
    db_cluster_snapshot_identifier: @snapshot_id
  )
  resp = @client.create_db_cluster_snapshot(options)
  DBClusterSnapshot.new(
    cluster_id: resp.data.db_cluster_snapshot.db_cluster_identifier,
    snapshot_id: resp.data.db_cluster_snapshot.db_cluster_snapshot_identifier,
    data: resp.data.db_cluster_snapshot,
    client: @client
  )
end

#dataTypes::DBClusterSnapshot



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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 199

def data
  load unless @data
  @data
end

#data_loaded?Boolean

Returns true if this resource is loaded. Accessing attributes or #data on an unloaded resource will trigger a call to #load.

Returns:

  • (Boolean)

    Returns true if this resource is loaded. Accessing attributes or #data on an unloaded resource will trigger a call to #load.



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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 207

def data_loaded?
  !!@data
end

#db_cluster_snapshot_arnString

The Amazon Resource Name (ARN) for the DB cluster snapshot.

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 146

def db_cluster_snapshot_arn
  data[:db_cluster_snapshot_arn]
end

#delete(options = {}) ⇒ DBClusterSnapshot

Examples:

Request syntax with placeholder values


db_cluster_snapshot.delete()

Parameters:

  • options (Hash) (defaults to: {})

    ({})

Returns:



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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 470

def delete(options = {})
  options = options.merge(db_cluster_snapshot_identifier: @snapshot_id)
  resp = @client.delete_db_cluster_snapshot(options)
  DBClusterSnapshot.new(
    cluster_id: resp.data.db_cluster_snapshot.db_cluster_identifier,
    snapshot_id: resp.data.db_cluster_snapshot.db_cluster_snapshot_identifier,
    data: resp.data.db_cluster_snapshot,
    client: @client
  )
end

#engineString

Specifies the name of the database engine.

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 63

def engine
  data[:engine]
end

#engine_versionString

Provides the version of the database engine for this DB cluster snapshot.

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 108

def engine_version
  data[:engine_version]
end

#events(options = {}) ⇒ Event::Collection

Examples:

Request syntax with placeholder values


events = db_cluster_snapshot.events({
  start_time: Time.now,
  end_time: Time.now,
  duration: 1,
  event_categories: ["String"],
  filters: [
    {
      name: "String", # required
      values: ["String"], # required
    },
  ],
})

Parameters:

  • options (Hash) (defaults to: {})

    ({})

Options Hash (options):

  • :start_time (Time, DateTime, Date, Integer, String)

    The beginning of the time interval to retrieve events for, specified in ISO 8601 format. For more information about ISO 8601, go to the ISO8601 Wikipedia page.

    Example: 2009-07-08T18:00Z

  • :end_time (Time, DateTime, Date, Integer, String)

    The end of the time interval for which to retrieve events, specified in ISO 8601 format. For more information about ISO 8601, go to the ISO8601 Wikipedia page.

    Example: 2009-07-08T18:00Z

  • :duration (Integer)

    The number of minutes to retrieve events for.

    Default: 60

  • :event_categories (Array<String>)

    A list of event categories that trigger notifications for a event notification subscription.

  • :filters (Array<Types::Filter>)

    This parameter isn't currently supported.

Returns:



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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 766

def events(options = {})
  batches = Enumerator.new do |y|
    options = options.merge(
      source_type: "db-cluster-snapshot",
      source_identifier: @snapshot_id
    )
    resp = @client.describe_events(options)
    resp.each_page do |page|
      batch = []
      page.data.events.each do |e|
        batch << Event.new(
          source_id: e.source_identifier,
          date: e.date,
          data: e,
          client: @client
        )
      end
      y.yield(batch)
    end
  end
  Event::Collection.new(batches)
end

#iam_database_authentication_enabledBoolean

True if mapping of AWS Identity and Access Management (IAM) accounts to database accounts is enabled, and otherwise false.

Returns:

  • (Boolean)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 161

def iam_database_authentication_enabled
  data[:iam_database_authentication_enabled]
end

#kms_key_idString

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

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 140

def kms_key_id
  data[:kms_key_id]
end

#license_modelString

Provides the license model information for this DB cluster snapshot.

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 114

def license_model
  data[:license_model]
end

#loadself Also known as: reload

Loads, or reloads #data for the current Aws::RDS::DBClusterSnapshot. Returns self making it possible to chain methods.

db_cluster_snapshot.reload.data

Returns:

  • (self)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 189

def load
  resp = @client.describe_db_cluster_snapshots(db_cluster_snapshot_identifier: @snapshot_id)
  @data = resp.db_cluster_snapshots[0]
  self
end

#master_usernameString

Provides the master username for the DB cluster snapshot.

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 101

def master_username
  data[:master_username]
end

#percent_progressInteger

Specifies the percentage of the estimated data that has been transferred.

Returns:

  • (Integer)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 127

def percent_progress
  data[:percent_progress]
end

#portInteger

Specifies the port that the DB cluster was listening on at the time of the snapshot.

Returns:

  • (Integer)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 82

def port
  data[:port]
end

#restore(options = {}) ⇒ DBCluster

Examples:

Request syntax with placeholder values


dbcluster = db_cluster_snapshot.restore({
  availability_zones: ["String"],
  db_cluster_identifier: "String", # required
  engine: "String", # required
  engine_version: "String",
  port: 1,
  db_subnet_group_name: "String",
  database_name: "String",
  option_group_name: "String",
  vpc_security_group_ids: ["String"],
  tags: [
    {
      key: "String",
      value: "String",
    },
  ],
  kms_key_id: "String",
  enable_iam_database_authentication: false,
  backtrack_window: 1,
  enable_cloudwatch_logs_exports: ["String"],
  engine_mode: "String",
  scaling_configuration: {
    min_capacity: 1,
    max_capacity: 1,
    auto_pause: false,
    seconds_until_auto_pause: 1,
    timeout_action: "String",
  },
  db_cluster_parameter_group_name: "String",
  deletion_protection: false,
  copy_tags_to_snapshot: false,
  domain: "String",
  domain_iam_role_name: "String",
})

Parameters:

  • options (Hash) (defaults to: {})

    ({})

Options Hash (options):

  • :availability_zones (Array<String>)

    Provides the list of Availability Zones (AZs) where instances in the restored DB cluster can be created.

  • :db_cluster_identifier (required, String)

    The name of the DB cluster to create from the DB snapshot or DB cluster snapshot. This parameter isn't case-sensitive.

    Constraints:

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

    • First character must be a letter

    • Can't end with a hyphen or contain two consecutive hyphens

    Example: my-snapshot-id

  • :engine (required, String)

    The database engine to use for the new DB cluster.

    Default: The same as source

    Constraint: Must be compatible with the engine of the source

  • :engine_version (String)

    The version of the database engine to use for the new DB cluster.

    To list all of the available engine versions for aurora (for MySQL 5.6-compatible Aurora), use the following command:

    aws rds describe-db-engine-versions --engine aurora --query "DBEngineVersions[].EngineVersion"

    To list all of the available engine versions for aurora-mysql (for MySQL 5.7-compatible Aurora), use the following command:

    aws rds describe-db-engine-versions --engine aurora-mysql --query "DBEngineVersions[].EngineVersion"

    To list all of the available engine versions for aurora-postgresql, use the following command:

    aws rds describe-db-engine-versions --engine aurora-postgresql --query "DBEngineVersions[].EngineVersion"

    If you aren't using the default engine version, then you must specify the engine version.

    Aurora MySQL

    Example: 5.6.10a, 5.6.mysql_aurora.1.19.2, 5.7.12, 5.7.mysql_aurora.2.04.5

    Aurora PostgreSQL

    Example: 9.6.3, 10.7

  • :port (Integer)

    The port number on which the new DB cluster accepts connections.

    Constraints: This value must be 1150-65535

    Default: The same port as the original DB cluster.

  • :db_subnet_group_name (String)

    The name of the DB subnet group to use for the new DB cluster.

    Constraints: If supplied, must match the name of an existing DB subnet group.

    Example: mySubnetgroup

  • :database_name (String)

    The database name for the restored DB cluster.

  • :option_group_name (String)

    The name of the option group to use for the restored DB cluster.

  • :vpc_security_group_ids (Array<String>)

    A list of VPC security groups that the new DB cluster will belong to.

  • :tags (Array<Types::Tag>)

    The tags to be assigned to the restored DB cluster.

  • :kms_key_id (String)

    The AWS KMS key identifier to use when restoring an encrypted DB cluster from a DB snapshot or DB cluster snapshot.

    The KMS key identifier is the Amazon Resource Name (ARN) for the KMS encryption key. If you are restoring 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 you don't specify a value for the KmsKeyId parameter, then the following occurs:

    • If the DB snapshot or DB cluster snapshot in SnapshotIdentifier is encrypted, then the restored DB cluster is encrypted using the KMS key that was used to encrypt the DB snapshot or DB cluster snapshot.

    • If the DB snapshot or DB cluster snapshot in SnapshotIdentifier isn't encrypted, then the restored DB cluster isn't encrypted.

  • :enable_iam_database_authentication (Boolean)

    A value that indicates whether to enable mapping of AWS Identity and Access Management (IAM) accounts to database accounts. By default, mapping is disabled.

    For more information, see IAM Database Authentication in the Amazon Aurora User Guide.

  • :backtrack_window (Integer)

    The target backtrack window, in seconds. To disable backtracking, set this value to 0.

    Currently, Backtrack is only supported for Aurora MySQL DB clusters.

    Default: 0

    Constraints:

    • If specified, this value must be set to a number from 0 to 259,200 (72 hours).

    ^

  • :enable_cloudwatch_logs_exports (Array<String>)

    The list of logs that the restored DB cluster is to export to Amazon CloudWatch Logs. The values in the list depend on the DB engine being used. For more information, see Publishing Database Logs to Amazon CloudWatch Logs in the Amazon Aurora User Guide.

  • :engine_mode (String)

    The DB engine mode of the DB cluster, either provisioned, serverless, parallelquery, global, or multimaster.

    For more information, see CreateDBCluster.

  • :scaling_configuration (Types::ScalingConfiguration)

    For DB clusters in serverless DB engine mode, the scaling properties of the DB cluster.

  • :db_cluster_parameter_group_name (String)

    The name of the DB cluster parameter group to associate with this DB cluster. If this argument is omitted, the default DB cluster parameter group for the specified engine is used.

    Constraints:

    • If supplied, must match the name of an existing default DB cluster parameter group.

    • Must be 1 to 255 letters, numbers, or hyphens.

    • First character must be a letter.

    • Can't end with a hyphen or contain two consecutive hyphens.

  • :deletion_protection (Boolean)

    A value that indicates whether the DB cluster has deletion protection enabled. The database can't be deleted when deletion protection is enabled. By default, deletion protection is disabled.

  • :copy_tags_to_snapshot (Boolean)

    A value that indicates whether to copy all tags from the restored DB cluster to snapshots of the restored DB cluster. The default is not to copy them.

  • :domain (String)

    Specify the Active Directory directory ID to restore the DB cluster in. The domain must be created prior to this operation. Currently, only MySQL, Microsoft SQL Server, Oracle, and PostgreSQL DB instances can be created in an Active Directory Domain.

    For more information, see Kerberos Authentication in the Amazon RDS User Guide.

  • :domain_iam_role_name (String)

    Specify the name of the IAM role to be used when making API calls to the Directory Service.

Returns:



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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 701

def restore(options = {})
  options = options.merge(snapshot_identifier: @snapshot_id)
  resp = @client.restore_db_cluster_from_snapshot(options)
  DBCluster.new(
    id: resp.data.db_cluster.db_cluster_identifier,
    data: resp.data.db_cluster,
    client: @client
  )
end

#snapshot_create_timeTime

Provides the time when the snapshot was taken, in Universal Coordinated Time (UTC).

Returns:

  • (Time)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 57

def snapshot_create_time
  data[:snapshot_create_time]
end

#snapshot_idString Also known as: db_cluster_snapshot_identifier

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 42

def snapshot_id
  @snapshot_id
end

#snapshot_typeString

Provides the type of the DB cluster snapshot.

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 120

def snapshot_type
  data[:snapshot_type]
end

#source_db_cluster_snapshot_arnString

If the DB cluster snapshot was copied from a source DB cluster snapshot, the Amazon Resource Name (ARN) for the source DB cluster snapshot, otherwise, a null value.

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 154

def source_db_cluster_snapshot_arn
  data[:source_db_cluster_snapshot_arn]
end

#statusString

Specifies the status of this DB cluster snapshot.

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 75

def status
  data[:status]
end

#storage_encryptedBoolean

Specifies whether the DB cluster snapshot is encrypted.

Returns:

  • (Boolean)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 133

def storage_encrypted
  data[:storage_encrypted]
end

#tag_listArray<Types::Tag>

A list of tags. For more information, see Tagging Amazon RDS Resources in the Amazon RDS User Guide.

Returns:



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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 172

def tag_list
  data[:tag_list]
end

#vpc_idString

Provides the VPC ID associated with the DB cluster snapshot.

Returns:

  • (String)


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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 88

def vpc_id
  data[:vpc_id]
end

#wait_until(options = {}) {|resource| ... } ⇒ Resource

Deprecated.

Use [Aws::RDS::Client] #wait_until instead

Note:

The waiting operation is performed on a copy. The original resource remains unchanged.

Waiter polls an API operation until a resource enters a desired state.

Basic Usage

Waiter will polls until it is successful, it fails by entering a terminal state, or until a maximum number of attempts are made.

# polls in a loop until condition is true
resource.wait_until(options) {|resource| condition}

Example

instance.wait_until(max_attempts:10, delay:5) do |instance|
  instance.state.name == 'running'
end

Configuration

You can configure the maximum number of polling attempts, and the delay (in seconds) between each polling attempt. The waiting condition is set by passing a block to #wait_until:

# poll for ~25 seconds
resource.wait_until(max_attempts:5,delay:5) {|resource|...}

Callbacks

You can be notified before each polling attempt and before each delay. If you throw :success or :failure from these callbacks, it will terminate the waiter.

started_at = Time.now
# poll for 1 hour, instead of a number of attempts
proc = Proc.new do |attempts, response|
  throw :failure if Time.now - started_at > 3600
end

  # disable max attempts
instance.wait_until(before_wait:proc, max_attempts:nil) {...}

Handling Errors

When a waiter is successful, it returns the Resource. When a waiter fails, it raises an error.

begin
  resource.wait_until(...)
rescue Aws::Waiters::Errors::WaiterFailed
  # resource did not enter the desired state in time
end

attempts attempt in seconds invoked before each attempt invoked before each wait

Parameters:

  • options (Hash) (defaults to: {})

    a customizable set of options

Options Hash (options):

  • :max_attempts (Integer) — default: 10

    Maximum number of

  • :delay (Integer) — default: 10

    Delay between each

  • :before_attempt (Proc) — default: nil

    Callback

  • :before_wait (Proc) — default: nil

    Callback

Yield Parameters:

  • resource (Resource)

    to be used in the waiting condition.

Returns:

  • (Resource)

    if the waiter was successful

Raises:

  • (Aws::Waiters::Errors::FailureStateError)

    Raised when the waiter terminates because the waiter has entered a state that it will not transition out of, preventing success.

    yet successful.

  • (Aws::Waiters::Errors::UnexpectedError)

    Raised when an error is encountered while polling for a resource that is not expected.

  • (NotImplementedError)

    Raised when the resource does not



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# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/db_cluster_snapshot.rb', line 291

def wait_until(options = {}, &block)
  self_copy = self.dup
  attempts = 0
  options[:max_attempts] = 10 unless options.key?(:max_attempts)
  options[:delay] ||= 10
  options[:poller] = Proc.new do
    attempts += 1
    if block.call(self_copy)
      [:success, self_copy]
    else
      self_copy.reload unless attempts == options[:max_attempts]
      :retry
    end
  end
  Aws::Waiters::Waiter.new(options).wait({})
end