CfnConnector

class aws_cdk.aws_transfer.CfnConnector(scope, id, *, access_role, url, as2_config=None, logging_role=None, security_policy_name=None, sftp_config=None, tags=None)

Bases: CfnResource

Creates the connector, which captures the parameters for a connection for the AS2 or SFTP protocol.

For AS2, the connector is required for sending files to an externally hosted AS2 server. For SFTP, the connector is required when sending files to an SFTP server or receiving files from an SFTP server. For more details about connectors, see Configure AS2 connectors and Create SFTP connectors . .. epigraph:

You must specify exactly one configuration object: either for AS2 ( ``As2Config`` ) or SFTP ( ``SftpConfig`` ).

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-transfer-connector.html
CloudformationResource:: AWS::Transfer::Connector
ExampleMetadata:: fixture=_generated

Example:

# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
from aws_cdk import aws_transfer as transfer

# as2_config: Any

cfn_connector = transfer.CfnConnector(self, "MyCfnConnector",
    access_role="accessRole",
    url="url",

    # the properties below are optional
    as2_config=as2_config,
    logging_role="loggingRole",
    security_policy_name="securityPolicyName",
    sftp_config=transfer.CfnConnector.SftpConfigProperty(
        max_concurrent_connections=123,
        trusted_host_keys=["trustedHostKeys"],
        user_secret_id="userSecretId"
    ),
    tags=[CfnTag(
        key="key",
        value="value"
    )]
)

Parameters:

scope (Construct) – Scope in which this resource is defined.
id (str) – Construct identifier for this resource (unique in its scope).
access_role (str) – Connectors are used to send files using either the AS2 or SFTP protocol. For the access role, provide the Amazon Resource Name (ARN) of the AWS Identity and Access Management role to use. For AS2 connectors With AS2, you can send files by calling StartFileTransfer and specifying the file paths in the request parameter, SendFilePaths . We use the file’s parent directory (for example, for --send-file-paths /bucket/dir/file.txt , parent directory is /bucket/dir/ ) to temporarily store a processed AS2 message file, store the MDN when we receive them from the partner, and write a final JSON file containing relevant metadata of the transmission. So, the AccessRole needs to provide read and write access to the parent directory of the file location used in the StartFileTransfer request. Additionally, you need to provide read and write access to the parent directory of the files that you intend to send with StartFileTransfer . If you are using Basic authentication for your AS2 connector, the access role requires the secretsmanager:GetSecretValue permission for the secret. If the secret is encrypted using a customer-managed key instead of the AWS managed key in Secrets Manager, then the role also needs the kms:Decrypt permission for that key. For SFTP connectors Make sure that the access role provides read and write access to the parent directory of the file location that’s used in the StartFileTransfer request. Additionally, make sure that the role provides secretsmanager:GetSecretValue permission to AWS Secrets Manager .
url (str) – The URL of the partner’s AS2 or SFTP endpoint. When creating AS2 connectors or service-managed SFTP connectors (connectors without egress configuration), you must provide a URL to specify the remote server endpoint. For VPC Lattice type connectors, the URL must be null.
as2_config (Any) – A structure that contains the parameters for an AS2 connector object.
logging_role (Optional[str]) – The Amazon Resource Name (ARN) of the AWS Identity and Access Management (IAM) role that allows a connector to turn on CloudWatch logging for Amazon S3 events. When set, you can view connector activity in your CloudWatch logs.
security_policy_name (Optional[str]) – The text name of the security policy for the specified connector.
sftp_config (Union[IResolvable, SftpConfigProperty, Dict[str, Any], None]) – A structure that contains the parameters for an SFTP connector object.
tags (Optional[Sequence[Union[CfnTag, Dict[str, Any]]]]) – Key-value pairs that can be used to group and search for connectors.

Methods

add_deletion_override(path)

Syntactic sugar for addOverride(path, undefined).

Parameters:: path (str) – The path of the value to delete.
Return type:: None

add_dependency(target)

Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.

This can be used for resources across stacks (or nested stack) boundaries and the dependency will automatically be transferred to the relevant scope.

Parameters:: target (CfnResource)
Return type:: None

add_depends_on(target)

(deprecated) Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.

Parameters:: target (CfnResource)
Deprecated:: use addDependency
Stability:: deprecated
Return type:: None

add_metadata(key, value)

Add a value to the CloudFormation Resource Metadata.

Parameters:

key (str)
value (Any)

See:

Return type:

None

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html

Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.

add_override(path, value)

Adds an override to the synthesized CloudFormation resource.

To add a property override, either use addPropertyOverride or prefix path with “Properties.” (i.e. Properties.TopicName).

If the override is nested, separate each nested level using a dot (.) in the path parameter. If there is an array as part of the nesting, specify the index in the path.

To include a literal . in the property name, prefix with a \. In most programming languages you will need to write this as "\\." because the \ itself will need to be escaped.

For example:

cfn_resource.add_override("Properties.GlobalSecondaryIndexes.0.Projection.NonKeyAttributes", ["myattribute"])
cfn_resource.add_override("Properties.GlobalSecondaryIndexes.1.ProjectionType", "INCLUDE")

would add the overrides Example:

"Properties": {
  "GlobalSecondaryIndexes": [
    {
      "Projection": {
        "NonKeyAttributes": [ "myattribute" ]
        ...
      }
      ...
    },
    {
      "ProjectionType": "INCLUDE"
      ...
    },
  ]
  ...
}

The value argument to addOverride will not be processed or translated in any way. Pass raw JSON values in here with the correct capitalization for CloudFormation. If you pass CDK classes or structs, they will be rendered with lowercased key names, and CloudFormation will reject the template.

Parameters:

path (str) –
- The path of the property, you can use dot notation to override values in complex types. Any intermediate keys will be created as needed.
value (Any) –
- The value. Could be primitive or complex.

Return type:

None

add_property_deletion_override(property_path)

Adds an override that deletes the value of a property from the resource definition.

Parameters:: property_path (str) – The path to the property.
Return type:: None

add_property_override(property_path, value)

Adds an override to a resource property.

Syntactic sugar for addOverride("Properties.<...>", value).

Parameters:

property_path (str) – The path of the property.
value (Any) – The value.

Return type:

None

apply_removal_policy(policy=None, *, apply_to_update_replace_policy=None, default=None)

Sets the deletion policy of the resource based on the removal policy specified.

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

The resource can be deleted (RemovalPolicy.DESTROY), or left in your AWS account for data recovery and cleanup later (RemovalPolicy.RETAIN). In some cases, a snapshot can be taken of the resource prior to deletion (RemovalPolicy.SNAPSHOT). A list of resources that support this policy can be found in the following link:

Parameters:

policy (Optional[RemovalPolicy])
apply_to_update_replace_policy (Optional[bool]) – Apply the same deletion policy to the resource’s “UpdateReplacePolicy”. Default: true
default (Optional[RemovalPolicy]) – The default policy to apply in case the removal policy is not defined. Default: - Default value is resource specific. To determine the default value for a resource, please consult that specific resource’s documentation.

See:

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-deletionpolicy.html#aws-attribute-deletionpolicy-options

Return type:

None

get_att(attribute_name, type_hint=None)

Returns a token for an runtime attribute of this resource.

Ideally, use generated attribute accessors (e.g. resource.arn), but this can be used for future compatibility in case there is no generated attribute.

Parameters:

attribute_name (str) – The name of the attribute.
type_hint (Optional[ResolutionTypeHint])

Return type:

Reference

get_metadata(key)

Retrieve a value value from the CloudFormation Resource Metadata.

Parameters:: key (str)
See:
Return type:: Any

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html

Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.

inspect(inspector)

Examines the CloudFormation resource and discloses attributes.

Parameters:: inspector (TreeInspector) – tree inspector to collect and process attributes.
Return type:: None

obtain_dependencies()

Retrieves an array of resources this resource depends on.

This assembles dependencies on resources across stacks (including nested stacks) automatically.

Return type:: List[Union[Stack, CfnResource]]

obtain_resource_dependencies()

Get a shallow copy of dependencies between this resource and other resources in the same stack.

Return type:: List[CfnResource]

override_logical_id(new_logical_id)

Overrides the auto-generated logical ID with a specific ID.

Parameters:: new_logical_id (str) – The new logical ID to use for this stack element.
Return type:: None

remove_dependency(target)

Indicates that this resource no longer depends on another resource.

This can be used for resources across stacks (including nested stacks) and the dependency will automatically be removed from the relevant scope.

Parameters:: target (CfnResource)
Return type:: None

replace_dependency(target, new_target)

Replaces one dependency with another.

Parameters:

target (CfnResource) – The dependency to replace.
new_target (CfnResource) – The new dependency to add.

Return type:

None

to_string()

Returns a string representation of this construct.

Return type:: str
Returns:: a string representation of this resource

Attributes

CFN_RESOURCE_TYPE_NAME = 'AWS::Transfer::Connector'

access_role: Connectors are used to send files using either the AS2 or SFTP protocol.

as2_config: A structure that contains the parameters for an AS2 connector object.

attr_arn

Specifies the unique Amazon Resource Name (ARN) for the connector.

CloudformationAttribute:: Arn

attr_connector_id

The service-assigned ID of the connector that is created.

CloudformationAttribute:: ConnectorId

attr_service_managed_egress_ip_addresses

The list of egress IP addresses of this connector.

These IP addresses are assigned automatically when you create the connector.

CloudformationAttribute:: ServiceManagedEgressIpAddresses

cfn_options: Options for this resource, such as condition, update policy etc.

cfn_resource_type: AWS resource type.

connector_ref: A reference to a Connector resource.

creation_stack

return:

the stack trace of the point where this Resource was created from, sourced from the +metadata+ entry typed +aws:cdk:logicalId+, and with the bottom-most node +internal+ entries filtered.

env

logging_role: The Amazon Resource Name (ARN) of the AWS Identity and Access Management (IAM) role that allows a connector to turn on CloudWatch logging for Amazon S3 events.

logical_id

The logical ID for this CloudFormation stack element.

The logical ID of the element is calculated from the path of the resource node in the construct tree.

To override this value, use overrideLogicalId(newLogicalId).

Returns:

the logical ID as a stringified token. This value will only get resolved during synthesis.

node: The tree node.

ref

Return a string that will be resolved to a CloudFormation { Ref } for this element.

If, by any chance, the intrinsic reference of a resource is not a string, you could coerce it to an IResolvable through Lazy.any({ produce: resource.ref }).

security_policy_name: The text name of the security policy for the specified connector.

sftp_config: A structure that contains the parameters for an SFTP connector object.

stack

The stack in which this element is defined.

CfnElements must be defined within a stack scope (directly or indirectly).

tags: Tag Manager which manages the tags for this resource.

tags_raw: Key-value pairs that can be used to group and search for connectors.

url: The URL of the partner’s AS2 or SFTP endpoint.

Static Methods

classmethod from_connector_arn(scope, id, arn)

Creates a new IConnectorRef from an ARN.

Parameters:

scope (Construct)
id (str)
arn (str)

Return type:

IConnectorRef

classmethod from_connector_id(scope, id, connector_id)

Creates a new IConnectorRef from a connectorId.

Parameters:

scope (Construct)
id (str)
connector_id (str)

Return type:

IConnectorRef

classmethod is_cfn_element(x)

Returns true if a construct is a stack element (i.e. part of the synthesized cloudformation template).

Uses duck-typing instead of instanceof to allow stack elements from different versions of this library to be included in the same stack.

Parameters:: x (Any)
Return type:: bool
Returns:: The construct as a stack element or undefined if it is not a stack element.

classmethod is_cfn_resource(x)

Check whether the given object is a CfnResource.

Parameters:: x (Any)
Return type:: bool

classmethod is_construct(x)

Checks if x is a construct.

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

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

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

As2ConfigProperty

class CfnConnector.As2ConfigProperty(*, basic_auth_secret_id=None, compression=None, encryption_algorithm=None, local_profile_id=None, mdn_response=None, mdn_signing_algorithm=None, message_subject=None, partner_profile_id=None, preserve_content_type=None, signing_algorithm=None)

Bases: object

A structure that contains the parameters for an AS2 connector object.

Parameters:

basic_auth_secret_id (Optional[str]) – Provides Basic authentication support to the AS2 Connectors API. To use Basic authentication, you must provide the name or Amazon Resource Name (ARN) of a secret in AWS Secrets Manager . The default value for this parameter is null , which indicates that Basic authentication is not enabled for the connector. If the connector should use Basic authentication, the secret needs to be in the following format: { "Username": "user-name", "Password": "user-password" } Replace user-name and user-password with the credentials for the actual user that is being authenticated. Note the following: - You are storing these credentials in Secrets Manager, not passing them directly into this API. - If you are using the API, SDKs, or CloudFormation to configure your connector, then you must create the secret before you can enable Basic authentication. However, if you are using the AWS management console, you can have the system create the secret for you. If you have previously enabled Basic authentication for a connector, you can disable it by using the UpdateConnector API call. For example, if you are using the CLI, you can run the following command to remove Basic authentication: update-connector --connector-id my-connector-id --as2-config 'BasicAuthSecretId=""'
compression (Optional[str]) – Specifies whether the AS2 file is compressed.
encryption_algorithm (Optional[str]) – The algorithm that is used to encrypt the file. Note the following: - Do not use the DES_EDE3_CBC algorithm unless you must support a legacy client that requires it, as it is a weak encryption algorithm. - You can only specify NONE if the URL for your connector uses HTTPS. Using HTTPS ensures that no traffic is sent in clear text.
local_profile_id (Optional[str]) – A unique identifier for the AS2 local profile.
mdn_response (Optional[str]) – Used for outbound requests (from an AWS Transfer Family connector to a partner AS2 server) to determine whether the partner response for transfers is synchronous or asynchronous. Specify either of the following values: - SYNC : The system expects a synchronous MDN response, confirming that the file was transferred successfully (or not). - NONE : Specifies that no MDN response is required.
mdn_signing_algorithm (Optional[str]) – The signing algorithm for the MDN response. .. epigraph:: If set to DEFAULT (or not set at all), the value for SigningAlgorithm is used.
message_subject (Optional[str]) – Used as the Subject HTTP header attribute in AS2 messages that are being sent with the connector.
partner_profile_id (Optional[str]) – A unique identifier for the partner profile for the connector.
preserve_content_type (Optional[str]) – Specifies whether to use the AWS S3 object content-type as the content-type for the AS2 message.
signing_algorithm (Optional[str]) – The algorithm that is used to sign the AS2 messages sent with the connector.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-as2config.html

ExampleMetadata:

fixture=_generated

Example:

# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
from aws_cdk import aws_transfer as transfer

as2_config_property = transfer.CfnConnector.As2ConfigProperty(
    basic_auth_secret_id="basicAuthSecretId",
    compression="compression",
    encryption_algorithm="encryptionAlgorithm",
    local_profile_id="localProfileId",
    mdn_response="mdnResponse",
    mdn_signing_algorithm="mdnSigningAlgorithm",
    message_subject="messageSubject",
    partner_profile_id="partnerProfileId",
    preserve_content_type="preserveContentType",
    signing_algorithm="signingAlgorithm"
)

Attributes

basic_auth_secret_id

Provides Basic authentication support to the AS2 Connectors API.

To use Basic authentication, you must provide the name or Amazon Resource Name (ARN) of a secret in AWS Secrets Manager .

The default value for this parameter is null , which indicates that Basic authentication is not enabled for the connector.

If the connector should use Basic authentication, the secret needs to be in the following format:

{ "Username": "user-name", "Password": "user-password" }

Replace user-name and user-password with the credentials for the actual user that is being authenticated.

Note the following:

You are storing these credentials in Secrets Manager, not passing them directly into this API.
If you are using the API, SDKs, or CloudFormation to configure your connector, then you must create the secret before you can enable Basic authentication. However, if you are using the AWS management console, you can have the system create the secret for you.

If you have previously enabled Basic authentication for a connector, you can disable it by using the UpdateConnector API call. For example, if you are using the CLI, you can run the following command to remove Basic authentication:

update-connector --connector-id my-connector-id --as2-config 'BasicAuthSecretId=""'

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-as2config.html#cfn-transfer-connector-as2config-basicauthsecretid

compression

Specifies whether the AS2 file is compressed.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-as2config.html#cfn-transfer-connector-as2config-compression

encryption_algorithm

The algorithm that is used to encrypt the file.

Note the following:

Do not use the DES_EDE3_CBC algorithm unless you must support a legacy client that requires it, as it is a weak encryption algorithm.
You can only specify NONE if the URL for your connector uses HTTPS. Using HTTPS ensures that no traffic is sent in clear text.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-as2config.html#cfn-transfer-connector-as2config-encryptionalgorithm

local_profile_id

A unique identifier for the AS2 local profile.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-as2config.html#cfn-transfer-connector-as2config-localprofileid

mdn_response

Used for outbound requests (from an AWS Transfer Family connector to a partner AS2 server) to determine whether the partner response for transfers is synchronous or asynchronous.

Specify either of the following values:

SYNC : The system expects a synchronous MDN response, confirming that the file was transferred successfully (or not).
NONE : Specifies that no MDN response is required.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-as2config.html#cfn-transfer-connector-as2config-mdnresponse

mdn_signing_algorithm

The signing algorithm for the MDN response.

If set to DEFAULT (or not set at all), the value for SigningAlgorithm is used.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-as2config.html#cfn-transfer-connector-as2config-mdnsigningalgorithm

message_subject

Used as the Subject HTTP header attribute in AS2 messages that are being sent with the connector.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-as2config.html#cfn-transfer-connector-as2config-messagesubject

partner_profile_id

A unique identifier for the partner profile for the connector.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-as2config.html#cfn-transfer-connector-as2config-partnerprofileid

preserve_content_type

Specifies whether to use the AWS S3 object content-type as the content-type for the AS2 message.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-as2config.html#cfn-transfer-connector-as2config-preservecontenttype

signing_algorithm

The algorithm that is used to sign the AS2 messages sent with the connector.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-as2config.html#cfn-transfer-connector-as2config-signingalgorithm

SftpConfigProperty

class CfnConnector.SftpConfigProperty(*, max_concurrent_connections=None, trusted_host_keys=None, user_secret_id=None)

Bases: object

A structure that contains the parameters for an SFTP connector object.

Parameters:

max_concurrent_connections (Union[int, float, None]) – Specify the number of concurrent connections that your connector creates to the remote server. The default value is 1 . The maximum values is 5 . .. epigraph:: If you are using the AWS Management Console , the default value is 5 . This parameter specifies the number of active connections that your connector can establish with the remote server at the same time. Increasing this value can enhance connector performance when transferring large file batches by enabling parallel operations. Default: - 1
trusted_host_keys (Optional[Sequence[str]]) – The public portion of the host key, or keys, that are used to identify the external server to which you are connecting. You can use the ssh-keyscan command against the SFTP server to retrieve the necessary key. .. epigraph:: TrustedHostKeys is optional for CreateConnector . If not provided, you can use TestConnection to retrieve the server host key during the initial connection attempt, and subsequently update the connector with the observed host key. When creating connectors with egress config (VPC_LATTICE type connectors), since host name is not something we can verify, the only accepted trusted host key format is key-type key-body without the host name. For example: ssh-rsa AAAAB3Nza...<long-string-for-public-key> The three standard SSH public key format elements are <key type> , <body base64> , and an optional <comment> , with spaces between each element. Specify only the <key type> and <body base64> : do not enter the <comment> portion of the key. For the trusted host key, AWS Transfer Family accepts RSA and ECDSA keys. - For RSA keys, the <key type> string is ssh-rsa . - For ECDSA keys, the <key type> string is either ecdsa-sha2-nistp256 , ecdsa-sha2-nistp384 , or ecdsa-sha2-nistp521 , depending on the size of the key you generated. Run this command to retrieve the SFTP server host key, where your SFTP server name is ftp.host.com . ssh-keyscan ftp.host.com This prints the public host key to standard output. ftp.host.com ssh-rsa AAAAB3Nza...<long-string-for-public-key> Copy and paste this string into the TrustedHostKeys field for the create-connector command or into the Trusted host keys field in the console. For VPC Lattice type connectors (VPC_LATTICE), remove the hostname from the key and use only the key-type key-body format. In this example, it should be: ssh-rsa AAAAB3Nza...<long-string-for-public-key>
user_secret_id (Optional[str]) – The identifier for the secret (in AWS Secrets Manager) that contains the SFTP user’s private key, password, or both. The identifier must be the Amazon Resource Name (ARN) of the secret. .. epigraph:: - Required when creating an SFTP connector - Optional when updating an existing SFTP connector

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-sftpconfig.html

ExampleMetadata:

fixture=_generated

Example:

# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
from aws_cdk import aws_transfer as transfer

sftp_config_property = transfer.CfnConnector.SftpConfigProperty(
    max_concurrent_connections=123,
    trusted_host_keys=["trustedHostKeys"],
    user_secret_id="userSecretId"
)

Attributes

max_concurrent_connections

Specify the number of concurrent connections that your connector creates to the remote server.

The default value is 1 . The maximum values is 5 . .. epigraph:

If you are using the AWS Management Console , the default value is ``5`` .

This parameter specifies the number of active connections that your connector can establish with the remote server at the same time. Increasing this value can enhance connector performance when transferring large file batches by enabling parallel operations.

Default:

1

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-sftpconfig.html#cfn-transfer-connector-sftpconfig-maxconcurrentconnections

trusted_host_keys

The public portion of the host key, or keys, that are used to identify the external server to which you are connecting.

You can use the ssh-keyscan command against the SFTP server to retrieve the necessary key. .. epigraph:

``TrustedHostKeys`` is optional for ``CreateConnector`` . If not provided, you can use ``TestConnection`` to retrieve the server host key during the initial connection attempt, and subsequently update the connector with the observed host key.

When creating connectors with egress config (VPC_LATTICE type connectors), since host name is not something we can verify, the only accepted trusted host key format is key-type key-body without the host name. For example: ssh-rsa AAAAB3Nza...<long-string-for-public-key>

The three standard SSH public key format elements are <key type> , <body base64> , and an optional <comment> , with spaces between each element. Specify only the <key type> and <body base64> : do not enter the <comment> portion of the key.

For the trusted host key, AWS Transfer Family accepts RSA and ECDSA keys.

For RSA keys, the <key type> string is ssh-rsa .
For ECDSA keys, the <key type> string is either ecdsa-sha2-nistp256 , ecdsa-sha2-nistp384 , or ecdsa-sha2-nistp521 , depending on the size of the key you generated.

Run this command to retrieve the SFTP server host key, where your SFTP server name is ftp.host.com .

ssh-keyscan ftp.host.com

This prints the public host key to standard output.

ftp.host.com ssh-rsa AAAAB3Nza...<long-string-for-public-key>

Copy and paste this string into the TrustedHostKeys field for the create-connector command or into the Trusted host keys field in the console.

For VPC Lattice type connectors (VPC_LATTICE), remove the hostname from the key and use only the key-type key-body format. In this example, it should be: ssh-rsa AAAAB3Nza...<long-string-for-public-key>

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-sftpconfig.html#cfn-transfer-connector-sftpconfig-trustedhostkeys

user_secret_id

The identifier for the secret (in AWS Secrets Manager) that contains the SFTP user’s private key, password, or both.

The identifier must be the Amazon Resource Name (ARN) of the secret. .. epigraph:

- Required when creating an SFTP connector
- Optional when updating an existing SFTP connector

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-transfer-connector-sftpconfig.html#cfn-transfer-connector-sftpconfig-usersecretid