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Class: Aws::EFS::Client

Inherits:
Seahorse::Client::Base show all
Defined in:
(unknown)

Overview

An API client for Amazon Elastic File System. To construct a client, you need to configure a :region and :credentials.

efs = Aws::EFS::Client.new(
  region: region_name,
  credentials: credentials,
  # ...
)

See #initialize for a full list of supported configuration options.

Region

You can configure a default region in the following locations:

  • ENV['AWS_REGION']
  • Aws.config[:region]

Go here for a list of supported regions.

Credentials

Default credentials are loaded automatically from the following locations:

  • ENV['AWS_ACCESS_KEY_ID'] and ENV['AWS_SECRET_ACCESS_KEY']
  • Aws.config[:credentials]
  • The shared credentials ini file at ~/.aws/credentials (more information)
  • From an instance profile when running on EC2

You can also construct a credentials object from one of the following classes:

Alternatively, you configure credentials with :access_key_id and :secret_access_key:

# load credentials from disk
creds = YAML.load(File.read('/path/to/secrets'))

Aws::EFS::Client.new(
  access_key_id: creds['access_key_id'],
  secret_access_key: creds['secret_access_key']
)

Always load your credentials from outside your application. Avoid configuring credentials statically and never commit them to source control.

Instance Attribute Summary

Attributes inherited from Seahorse::Client::Base

#config, #handlers

Constructor collapse

API Operations collapse

Instance Method Summary collapse

Methods inherited from Seahorse::Client::Base

add_plugin, api, #build_request, clear_plugins, define, new, #operation, #operation_names, plugins, remove_plugin, set_api, set_plugins

Methods included from Seahorse::Client::HandlerBuilder

#handle, #handle_request, #handle_response

Constructor Details

#initialize(options = {}) ⇒ Aws::EFS::Client

Constructs an API client.

Options Hash (options):

  • :access_key_id (String)

    Used to set credentials statically. See Plugins::RequestSigner for more details.

  • :convert_params (Boolean) — default: true

    When true, an attempt is made to coerce request parameters into the required types. See Plugins::ParamConverter for more details.

  • :credentials (required, Credentials)

    Your AWS credentials. The following locations will be searched in order for credentials:

    • :access_key_id, :secret_access_key, and :session_token options
    • ENV['AWS_ACCESS_KEY_ID'], ENV['AWS_SECRET_ACCESS_KEY']
    • HOME/.aws/credentials shared credentials file
    • EC2 instance profile credentials See Plugins::RequestSigner for more details.
  • :endpoint (String)

    A default endpoint is constructed from the :region. See Plugins::RegionalEndpoint for more details.

  • :http_continue_timeout (Float) — default: 1

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :http_idle_timeout (Integer) — default: 5

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :http_open_timeout (Integer) — default: 15

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :http_proxy (String)

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :http_read_timeout (Integer) — default: 60

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :http_wire_trace (Boolean) — default: false

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :log_level (Symbol) — default: :info

    The log level to send messages to the logger at. See Plugins::Logging for more details.

  • :log_formatter (Logging::LogFormatter)

    The log formatter. Defaults to Seahorse::Client::Logging::Formatter.default. See Plugins::Logging for more details.

  • :logger (Logger) — default: nil

    The Logger instance to send log messages to. If this option is not set, logging will be disabled. See Plugins::Logging for more details.

  • :profile (String)

    Used when loading credentials from the shared credentials file at HOME/.aws/credentials. When not specified, 'default' is used. See Plugins::RequestSigner for more details.

  • :raise_response_errors (Boolean) — default: true

    When true, response errors are raised. See Seahorse::Client::Plugins::RaiseResponseErrors for more details.

  • :region (required, String)

    The AWS region to connect to. The region is used to construct the client endpoint. Defaults to ENV['AWS_REGION']. Also checks AMAZON_REGION and AWS_DEFAULT_REGION. See Plugins::RegionalEndpoint for more details.

  • :retry_limit (Integer) — default: 3

    The maximum number of times to retry failed requests. Only ~ 500 level server errors and certain ~ 400 level client errors are retried. Generally, these are throttling errors, data checksum errors, networking errors, timeout errors and auth errors from expired credentials. See Plugins::RetryErrors for more details.

  • :secret_access_key (String)

    Used to set credentials statically. See Plugins::RequestSigner for more details.

  • :session_token (String)

    Used to set credentials statically. See Plugins::RequestSigner for more details.

  • :ssl_ca_bundle (String)

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :ssl_ca_directory (String)

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :ssl_ca_store (String)

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :ssl_verify_peer (Boolean) — default: true

    See Seahorse::Client::Plugins::NetHttp for more details.

  • :stub_responses (Boolean) — default: false

    Causes the client to return stubbed responses. By default fake responses are generated and returned. You can specify the response data to return or errors to raise by calling ClientStubs#stub_responses. See ClientStubs for more information.

    Please note When response stubbing is enabled, no HTTP requests are made, and retries are disabled. See Plugins::StubResponses for more details.

  • :validate_params (Boolean) — default: true

    When true, request parameters are validated before sending the request. See Plugins::ParamValidator for more details.

Instance Method Details

#create_file_system(options = {}) ⇒ Types::FileSystemDescription

Creates a new, empty file system. The operation requires a creation token in the request that Amazon EFS uses to ensure idempotent creation (calling the operation with same creation token has no effect). If a file system does not currently exist that is owned by the caller's AWS account with the specified creation token, this operation does the following:

  • Creates a new, empty file system. The file system will have an Amazon EFS assigned ID, and an initial lifecycle state creating.

  • Returns with the description of the created file system.

Otherwise, this operation returns a FileSystemAlreadyExists error with the ID of the existing file system.

For basic use cases, you can use a randomly generated UUID for the creation token.

The idempotent operation allows you to retry a CreateFileSystem call without risk of creating an extra file system. This can happen when an initial call fails in a way that leaves it uncertain whether or not a file system was actually created. An example might be that a transport level timeout occurred or your connection was reset. As long as you use the same creation token, if the initial call had succeeded in creating a file system, the client can learn of its existence from the FileSystemAlreadyExists error.

The CreateFileSystem call returns while the file system's lifecycle state is still creating. You can check the file system creation status by calling the DescribeFileSystems operation, which among other things returns the file system state.

This operation also takes an optional PerformanceMode parameter that you choose for your file system. We recommend generalPurpose performance mode for most file systems. File systems using the maxIO performance mode can scale to higher levels of aggregate throughput and operations per second with a tradeoff of slightly higher latencies for most file operations. The performance mode can't be changed after the file system has been created. For more information, see Amazon EFS: Performance Modes.

After the file system is fully created, Amazon EFS sets its lifecycle state to available, at which point you can create one or more mount targets for the file system in your VPC. For more information, see CreateMountTarget. You mount your Amazon EFS file system on an EC2 instances in your VPC via the mount target. For more information, see Amazon EFS: How it Works.

This operation requires permissions for the elasticfilesystem:CreateFileSystem action.

Examples:

Example: To create a new file system


# This operation creates a new file system with the default generalpurpose performance mode.

resp = client.create_file_system({
  creation_token: "tokenstring", 
  performance_mode: "generalPurpose", 
})

# resp.to_h outputs the following:
{
  creation_time: Time.parse("1481841524.0"), 
  creation_token: "tokenstring", 
  file_system_id: "fs-01234567", 
  life_cycle_state: "creating", 
  number_of_mount_targets: 0, 
  owner_id: "012345678912", 
  performance_mode: "generalPurpose", 
  size_in_bytes: {
    value: 0, 
  }, 
}

Request syntax with placeholder values


resp = client.create_file_system({
  creation_token: "CreationToken", # required
  performance_mode: "generalPurpose", # accepts generalPurpose, maxIO
  encrypted: false,
  kms_key_id: "KmsKeyId",
})

Response structure


resp.owner_id #=> String
resp.creation_token #=> String
resp.file_system_id #=> String
resp.creation_time #=> Time
resp.life_cycle_state #=> String, one of "creating", "available", "deleting", "deleted"
resp.name #=> String
resp.number_of_mount_targets #=> Integer
resp.size_in_bytes.value #=> Integer
resp.size_in_bytes.timestamp #=> Time
resp.performance_mode #=> String, one of "generalPurpose", "maxIO"
resp.encrypted #=> true/false
resp.kms_key_id #=> String

Options Hash (options):

  • :creation_token (required, String)

    String of up to 64 ASCII characters. Amazon EFS uses this to ensure idempotent creation.

  • :performance_mode (String)

    The PerformanceMode of the file system. We recommend generalPurpose performance mode for most file systems. File systems using the maxIO performance mode can scale to higher levels of aggregate throughput and operations per second with a tradeoff of slightly higher latencies for most file operations. This can\'t be changed after the file system has been created.

  • :encrypted (Boolean)

    A boolean value that, if true, creates an encrypted file system. When creating an encrypted file system, you have the option of specifying a CreateFileSystemRequest$KmsKeyId for an existing AWS Key Management Service (AWS KMS) customer master key (CMK). If you don\'t specify a CMK, then the default CMK for Amazon EFS, /aws/elasticfilesystem, is used to protect the encrypted file system.

  • :kms_key_id (String)

    The id of the AWS KMS CMK that will be used to protect the encrypted file system. This parameter is only required if you want to use a non-default CMK. If this parameter is not specified, the default CMK for Amazon EFS is used. This id can be in one of the following formats:

    • Key ID - A unique identifier of the key. For example, 1234abcd-12ab-34cd-56ef-1234567890ab.

    • ARN - An Amazon Resource Name for the key. For example, arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab.

    • Key alias - A previously created display name for a key. For example, alias/projectKey1.

    • Key alias ARN - An Amazon Resource Name for a key alias. For example, arn:aws:kms:us-west-2:444455556666:alias/projectKey1.

    Note that if the KmsKeyId is specified, the CreateFileSystemRequest$Encrypted parameter must be set to true.

Returns:

See Also:

#create_mount_target(options = {}) ⇒ Types::MountTargetDescription

Creates a mount target for a file system. You can then mount the file system on EC2 instances via the mount target.

You can create one mount target in each Availability Zone in your VPC. All EC2 instances in a VPC within a given Availability Zone share a single mount target for a given file system. If you have multiple subnets in an Availability Zone, you create a mount target in one of the subnets. EC2 instances do not need to be in the same subnet as the mount target in order to access their file system. For more information, see Amazon EFS: How it Works.

In the request, you also specify a file system ID for which you are creating the mount target and the file system's lifecycle state must be available. For more information, see DescribeFileSystems.

In the request, you also provide a subnet ID, which determines the following:

  • VPC in which Amazon EFS creates the mount target

  • Availability Zone in which Amazon EFS creates the mount target

  • IP address range from which Amazon EFS selects the IP address of the mount target (if you don't specify an IP address in the request)

After creating the mount target, Amazon EFS returns a response that includes, a MountTargetId and an IpAddress. You use this IP address when mounting the file system in an EC2 instance. You can also use the mount target's DNS name when mounting the file system. The EC2 instance on which you mount the file system via the mount target can resolve the mount target's DNS name to its IP address. For more information, see How it Works: Implementation Overview.

Note that you can create mount targets for a file system in only one VPC, and there can be only one mount target per Availability Zone. That is, if the file system already has one or more mount targets created for it, the subnet specified in the request to add another mount target must meet the following requirements:

  • Must belong to the same VPC as the subnets of the existing mount targets

  • Must not be in the same Availability Zone as any of the subnets of the existing mount targets

If the request satisfies the requirements, Amazon EFS does the following:

  • Creates a new mount target in the specified subnet.

  • Also creates a new network interface in the subnet as follows:

    • If the request provides an IpAddress, Amazon EFS assigns that IP address to the network interface. Otherwise, Amazon EFS assigns a free address in the subnet (in the same way that the Amazon EC2 CreateNetworkInterface call does when a request does not specify a primary private IP address).

    • If the request provides SecurityGroups, this network interface is associated with those security groups. Otherwise, it belongs to the default security group for the subnet's VPC.

    • Assigns the description Mount target fsmt-id for file system fs-id where fsmt-id is the mount target ID, and fs-id is the FileSystemId.

    • Sets the requesterManaged property of the network interface to true, and the requesterId value to EFS.

    Each Amazon EFS mount target has one corresponding requester-managed EC2 network interface. After the network interface is created, Amazon EFS sets the NetworkInterfaceId field in the mount target's description to the network interface ID, and the IpAddress field to its address. If network interface creation fails, the entire CreateMountTarget operation fails.

The CreateMountTarget call returns only after creating the network interface, but while the mount target state is still creating, you can check the mount target creation status by calling the DescribeMountTargets operation, which among other things returns the mount target state.

We recommend you create a mount target in each of the Availability Zones. There are cost considerations for using a file system in an Availability Zone through a mount target created in another Availability Zone. For more information, see Amazon EFS. In addition, by always using a mount target local to the instance's Availability Zone, you eliminate a partial failure scenario. If the Availability Zone in which your mount target is created goes down, then you won't be able to access your file system through that mount target.

This operation requires permissions for the following action on the file system:

  • elasticfilesystem:CreateMountTarget

This operation also requires permissions for the following Amazon EC2 actions:

  • ec2:DescribeSubnets

  • ec2:DescribeNetworkInterfaces

  • ec2:CreateNetworkInterface

Examples:

Example: To create a new mount target


# This operation creates a new mount target for an EFS file system.

resp = client.create_mount_target({
  file_system_id: "fs-01234567", 
  subnet_id: "subnet-1234abcd", 
})

# resp.to_h outputs the following:
{
  file_system_id: "fs-01234567", 
  ip_address: "192.0.0.2", 
  life_cycle_state: "creating", 
  mount_target_id: "fsmt-12340abc", 
  network_interface_id: "eni-cedf6789", 
  owner_id: "012345678912", 
  subnet_id: "subnet-1234abcd", 
}

Request syntax with placeholder values


resp = client.create_mount_target({
  file_system_id: "FileSystemId", # required
  subnet_id: "SubnetId", # required
  ip_address: "IpAddress",
  security_groups: ["SecurityGroup"],
})

Response structure


resp.owner_id #=> String
resp.mount_target_id #=> String
resp.file_system_id #=> String
resp.subnet_id #=> String
resp.life_cycle_state #=> String, one of "creating", "available", "deleting", "deleted"
resp.ip_address #=> String
resp.network_interface_id #=> String

Options Hash (options):

  • :file_system_id (required, String)

    ID of the file system for which to create the mount target.

  • :subnet_id (required, String)

    ID of the subnet to add the mount target in.

  • :ip_address (String)

    Valid IPv4 address within the address range of the specified subnet.

  • :security_groups (Array<String>)

    Up to five VPC security group IDs, of the form sg-xxxxxxxx. These must be for the same VPC as subnet specified.

Returns:

See Also:

#create_tags(options = {}) ⇒ Struct

Creates or overwrites tags associated with a file system. Each tag is a key-value pair. If a tag key specified in the request already exists on the file system, this operation overwrites its value with the value provided in the request. If you add the Name tag to your file system, Amazon EFS returns it in the response to the DescribeFileSystems operation.

This operation requires permission for the elasticfilesystem:CreateTags action.

Examples:

Example: To create a new tag


# This operation creates a new tag for an EFS file system.

resp = client.create_tags({
  file_system_id: "fs-01234567", 
  tags: [
    {
      key: "Name", 
      value: "MyFileSystem", 
    }, 
  ], 
})

Request syntax with placeholder values


resp = client.create_tags({
  file_system_id: "FileSystemId", # required
  tags: [ # required
    {
      key: "TagKey", # required
      value: "TagValue", # required
    },
  ],
})

Options Hash (options):

  • :file_system_id (required, String)

    ID of the file system whose tags you want to modify (String). This operation modifies the tags only, not the file system.

  • :tags (required, Array<Types::Tag>)

    Array of Tag objects to add. Each Tag object is a key-value pair.

Returns:

  • (Struct)

    Returns an empty response.

See Also:

#delete_file_system(options = {}) ⇒ Struct

Deletes a file system, permanently severing access to its contents. Upon return, the file system no longer exists and you can't access any contents of the deleted file system.

You can't delete a file system that is in use. That is, if the file system has any mount targets, you must first delete them. For more information, see DescribeMountTargets and DeleteMountTarget.

The DeleteFileSystem call returns while the file system state is still deleting. You can check the file system deletion status by calling the DescribeFileSystems operation, which returns a list of file systems in your account. If you pass file system ID or creation token for the deleted file system, the DescribeFileSystems returns a 404 FileSystemNotFound error.

This operation requires permissions for the elasticfilesystem:DeleteFileSystem action.

Examples:

Example: To delete a file system


# This operation deletes an EFS file system.

resp = client.delete_file_system({
  file_system_id: "fs-01234567", 
})

Request syntax with placeholder values


resp = client.delete_file_system({
  file_system_id: "FileSystemId", # required
})

Options Hash (options):

  • :file_system_id (required, String)

    ID of the file system you want to delete.

Returns:

  • (Struct)

    Returns an empty response.

See Also:

#delete_mount_target(options = {}) ⇒ Struct

Deletes the specified mount target.

This operation forcibly breaks any mounts of the file system via the mount target that is being deleted, which might disrupt instances or applications using those mounts. To avoid applications getting cut off abruptly, you might consider unmounting any mounts of the mount target, if feasible. The operation also deletes the associated network interface. Uncommitted writes may be lost, but breaking a mount target using this operation does not corrupt the file system itself. The file system you created remains. You can mount an EC2 instance in your VPC via another mount target.

This operation requires permissions for the following action on the file system:

  • elasticfilesystem:DeleteMountTarget

The DeleteMountTarget call returns while the mount target state is still deleting. You can check the mount target deletion by calling the DescribeMountTargets operation, which returns a list of mount target descriptions for the given file system.

The operation also requires permissions for the following Amazon EC2 action on the mount target's network interface:

  • ec2:DeleteNetworkInterface

Examples:

Example: To delete a mount target


# This operation deletes a mount target.

resp = client.delete_mount_target({
  mount_target_id: "fsmt-12340abc", 
})

Request syntax with placeholder values


resp = client.delete_mount_target({
  mount_target_id: "MountTargetId", # required
})

Options Hash (options):

  • :mount_target_id (required, String)

    ID of the mount target to delete (String).

Returns:

  • (Struct)

    Returns an empty response.

See Also:

#delete_tags(options = {}) ⇒ Struct

Deletes the specified tags from a file system. If the DeleteTags request includes a tag key that does not exist, Amazon EFS ignores it and doesn't cause an error. For more information about tags and related restrictions, see Tag Restrictions in the AWS Billing and Cost Management User Guide.

This operation requires permissions for the elasticfilesystem:DeleteTags action.

Examples:

Example: To delete tags for an EFS file system


# This operation deletes tags for an EFS file system.

resp = client.delete_tags({
  file_system_id: "fs-01234567", 
  tag_keys: [
    "Name", 
  ], 
})

Request syntax with placeholder values


resp = client.delete_tags({
  file_system_id: "FileSystemId", # required
  tag_keys: ["TagKey"], # required
})

Options Hash (options):

  • :file_system_id (required, String)

    ID of the file system whose tags you want to delete (String).

  • :tag_keys (required, Array<String>)

    List of tag keys to delete.

Returns:

  • (Struct)

    Returns an empty response.

See Also:

#describe_file_systems(options = {}) ⇒ Types::DescribeFileSystemsResponse

Returns the description of a specific Amazon EFS file system if either the file system CreationToken or the FileSystemId is provided. Otherwise, it returns descriptions of all file systems owned by the caller's AWS account in the AWS Region of the endpoint that you're calling.

When retrieving all file system descriptions, you can optionally specify the MaxItems parameter to limit the number of descriptions in a response. If more file system descriptions remain, Amazon EFS returns a NextMarker, an opaque token, in the response. In this case, you should send a subsequent request with the Marker request parameter set to the value of NextMarker.

To retrieve a list of your file system descriptions, this operation is used in an iterative process, where DescribeFileSystems is called first without the Marker and then the operation continues to call it with the Marker parameter set to the value of the NextMarker from the previous response until the response has no NextMarker.

The implementation may return fewer than MaxItems file system descriptions while still including a NextMarker value.

The order of file systems returned in the response of one DescribeFileSystems call and the order of file systems returned across the responses of a multi-call iteration is unspecified.

This operation requires permissions for the elasticfilesystem:DescribeFileSystems action.

Examples:

Example: To describe an EFS file system


# This operation describes all of the EFS file systems in an account.

resp = client.describe_file_systems({
})

# resp.to_h outputs the following:
{
  file_systems: [
    {
      creation_time: Time.parse("1481841524.0"), 
      creation_token: "tokenstring", 
      file_system_id: "fs-01234567", 
      life_cycle_state: "available", 
      name: "MyFileSystem", 
      number_of_mount_targets: 1, 
      owner_id: "012345678912", 
      performance_mode: "generalPurpose", 
      size_in_bytes: {
        value: 6144, 
      }, 
    }, 
  ], 
}

Request syntax with placeholder values


resp = client.describe_file_systems({
  max_items: 1,
  marker: "Marker",
  creation_token: "CreationToken",
  file_system_id: "FileSystemId",
})

Response structure


resp.marker #=> String
resp.file_systems #=> Array
resp.file_systems[0].owner_id #=> String
resp.file_systems[0].creation_token #=> String
resp.file_systems[0].file_system_id #=> String
resp.file_systems[0].creation_time #=> Time
resp.file_systems[0].life_cycle_state #=> String, one of "creating", "available", "deleting", "deleted"
resp.file_systems[0].name #=> String
resp.file_systems[0].number_of_mount_targets #=> Integer
resp.file_systems[0].size_in_bytes.value #=> Integer
resp.file_systems[0].size_in_bytes.timestamp #=> Time
resp.file_systems[0].performance_mode #=> String, one of "generalPurpose", "maxIO"
resp.file_systems[0].encrypted #=> true/false
resp.file_systems[0].kms_key_id #=> String
resp.next_marker #=> String

Options Hash (options):

  • :max_items (Integer) — default: Optional

    Specifies the maximum number of file systems to return in the response (integer). This parameter value must be greater than 0. The number of items that Amazon EFS returns is the minimum of the MaxItems parameter specified in the request and the service\'s internal maximum number of items per page.

  • :marker (String) — default: Optional

    Opaque pagination token returned from a previous DescribeFileSystems operation (String). If present, specifies to continue the list from where the returning call had left off.

  • :creation_token (String) — default: Optional

    Restricts the list to the file system with this creation token (String). You specify a creation token when you create an Amazon EFS file system.

  • :file_system_id (String) — default: Optional

    ID of the file system whose description you want to retrieve (String).

Returns:

See Also:

#describe_mount_target_security_groups(options = {}) ⇒ Types::DescribeMountTargetSecurityGroupsResponse

Returns the security groups currently in effect for a mount target. This operation requires that the network interface of the mount target has been created and the lifecycle state of the mount target is not deleted.

This operation requires permissions for the following actions:

  • elasticfilesystem:DescribeMountTargetSecurityGroups action on the mount target's file system.

  • ec2:DescribeNetworkInterfaceAttribute action on the mount target's network interface.

Examples:

Example: To describe the security groups for a mount target


# This operation describes all of the security groups for a file system's mount target.

resp = client.describe_mount_target_security_groups({
  mount_target_id: "fsmt-12340abc", 
})

# resp.to_h outputs the following:
{
  security_groups: [
    "sg-fghi4567", 
  ], 
}

Request syntax with placeholder values


resp = client.describe_mount_target_security_groups({
  mount_target_id: "MountTargetId", # required
})

Response structure


resp.security_groups #=> Array
resp.security_groups[0] #=> String

Options Hash (options):

  • :mount_target_id (required, String)

    ID of the mount target whose security groups you want to retrieve.

Returns:

See Also:

#describe_mount_targets(options = {}) ⇒ Types::DescribeMountTargetsResponse

Returns the descriptions of all the current mount targets, or a specific mount target, for a file system. When requesting all of the current mount targets, the order of mount targets returned in the response is unspecified.

This operation requires permissions for the elasticfilesystem:DescribeMountTargets action, on either the file system ID that you specify in FileSystemId, or on the file system of the mount target that you specify in MountTargetId.

Examples:

Example: To describe the mount targets for a file system


# This operation describes all of a file system's mount targets.

resp = client.describe_mount_targets({
  file_system_id: "fs-01234567", 
})

# resp.to_h outputs the following:
{
  mount_targets: [
    {
      file_system_id: "fs-01234567", 
      ip_address: "192.0.0.2", 
      life_cycle_state: "available", 
      mount_target_id: "fsmt-12340abc", 
      network_interface_id: "eni-cedf6789", 
      owner_id: "012345678912", 
      subnet_id: "subnet-1234abcd", 
    }, 
  ], 
}

Request syntax with placeholder values


resp = client.describe_mount_targets({
  max_items: 1,
  marker: "Marker",
  file_system_id: "FileSystemId",
  mount_target_id: "MountTargetId",
})

Response structure


resp.marker #=> String
resp.mount_targets #=> Array
resp.mount_targets[0].owner_id #=> String
resp.mount_targets[0].mount_target_id #=> String
resp.mount_targets[0].file_system_id #=> String
resp.mount_targets[0].subnet_id #=> String
resp.mount_targets[0].life_cycle_state #=> String, one of "creating", "available", "deleting", "deleted"
resp.mount_targets[0].ip_address #=> String
resp.mount_targets[0].network_interface_id #=> String
resp.next_marker #=> String

Options Hash (options):

  • :max_items (Integer) — default: Optional

    Maximum number of mount targets to return in the response. It must be an integer with a value greater than zero.

  • :marker (String) — default: Optional

    Opaque pagination token returned from a previous DescribeMountTargets operation (String). If present, it specifies to continue the list from where the previous returning call left off.

  • :file_system_id (String) — default: Optional

    ID of the file system whose mount targets you want to list (String). It must be included in your request if MountTargetId is not included.

  • :mount_target_id (String) — default: Optional

    ID of the mount target that you want to have described (String). It must be included in your request if FileSystemId is not included.

Returns:

See Also:

#describe_tags(options = {}) ⇒ Types::DescribeTagsResponse

Returns the tags associated with a file system. The order of tags returned in the response of one DescribeTags call and the order of tags returned across the responses of a multi-call iteration (when using pagination) is unspecified.

This operation requires permissions for the elasticfilesystem:DescribeTags action.

Examples:

Example: To describe the tags for a file system


# This operation describes all of a file system's tags.

resp = client.describe_tags({
  file_system_id: "fs-01234567", 
})

# resp.to_h outputs the following:
{
  tags: [
    {
      key: "Name", 
      value: "MyFileSystem", 
    }, 
  ], 
}

Request syntax with placeholder values


resp = client.describe_tags({
  max_items: 1,
  marker: "Marker",
  file_system_id: "FileSystemId", # required
})

Response structure


resp.marker #=> String
resp.tags #=> Array
resp.tags[0].key #=> String
resp.tags[0].value #=> String
resp.next_marker #=> String

Options Hash (options):

  • :max_items (Integer) — default: Optional

    Maximum number of file system tags to return in the response. It must be an integer with a value greater than zero.

  • :marker (String) — default: Optional

    Opaque pagination token returned from a previous DescribeTags operation (String). If present, it specifies to continue the list from where the previous call left off.

  • :file_system_id (required, String)

    ID of the file system whose tag set you want to retrieve.

Returns:

See Also:

#modify_mount_target_security_groups(options = {}) ⇒ Struct

Modifies the set of security groups in effect for a mount target.

When you create a mount target, Amazon EFS also creates a new network interface. For more information, see CreateMountTarget. This operation replaces the security groups in effect for the network interface associated with a mount target, with the SecurityGroups provided in the request. This operation requires that the network interface of the mount target has been created and the lifecycle state of the mount target is not deleted.

The operation requires permissions for the following actions:

  • elasticfilesystem:ModifyMountTargetSecurityGroups action on the mount target's file system.

  • ec2:ModifyNetworkInterfaceAttribute action on the mount target's network interface.

Examples:

Example: To modify the security groups associated with a mount target for a file system


# This operation modifies the security groups associated with a mount target for a file system.

resp = client.modify_mount_target_security_groups({
  mount_target_id: "fsmt-12340abc", 
  security_groups: [
    "sg-abcd1234", 
  ], 
})

Request syntax with placeholder values


resp = client.modify_mount_target_security_groups({
  mount_target_id: "MountTargetId", # required
  security_groups: ["SecurityGroup"],
})

Options Hash (options):

  • :mount_target_id (required, String)

    ID of the mount target whose security groups you want to modify.

  • :security_groups (Array<String>)

    Array of up to five VPC security group IDs.

Returns:

  • (Struct)

    Returns an empty response.

See Also:

#wait_until(waiter_name, params = {}) {|waiter| ... } ⇒ Boolean

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

Basic Usage

Waiters will poll until they are succesful, they fail by entering a terminal state, or until a maximum number of attempts are made.

# polls in a loop, sleeping between attempts client.waiter_until(waiter_name, params)

Configuration

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

# poll for ~25 seconds
client.wait_until(...) do |w|
  w.max_attempts = 5
  w.delay = 5
end

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
client.wait_until(...) do |w|

  # disable max attempts
  w.max_attempts = nil

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

end

Handling Errors

When a waiter is successful, it returns true. When a waiter fails, it raises an error. All errors raised extend from Waiters::Errors::WaiterFailed.

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

Parameters:

  • waiter_name (Symbol)

    The name of the waiter. See #waiter_names for a full list of supported waiters.

  • params (Hash) (defaults to: {})

    Additional request parameters. See the #waiter_names for a list of supported waiters and what request they call. The called request determines the list of accepted parameters.

Yield Parameters:

Returns:

  • (Boolean)

    Returns true if the waiter was successful.

Raises:

  • (Errors::FailureStateError)

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

  • (Errors::TooManyAttemptsError)

    Raised when the configured maximum number of attempts have been made, and the waiter is not yet successful.

  • (Errors::UnexpectedError)

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

  • (Errors::NoSuchWaiterError)

    Raised when you request to wait for an unknown state.

#waiter_namesArray<Symbol>

Returns the list of supported waiters. The following table lists the supported waiters and the client method they call:

Waiter NameClient MethodDefault Delay:Default Max Attempts:

Returns:

  • (Array<Symbol>)

    the list of supported waiters.