terraform-aws-transfer-sftp

This is terraform-aws-transfer-sftp project provides all the scaffolding for a typical well-built Cloud Posse module. It's a template repository you can use when creating new repositories.

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This project is part of our comprehensive "SweetOps" approach towards DevOps.

It's 100% Open Source and licensed under the APACHE2.

We literally have hundreds of terraform modules that are Open Source and well-maintained. Check them out!

Security & Compliance

Security scanning is graciously provided by Bridgecrew. Bridgecrew is the leading fully hosted, cloud-native solution providing continuous Terraform security and compliance.

Benchmark	Description
	Infrastructure Security Compliance
	Center for Internet Security, KUBERNETES Compliance
	Center for Internet Security, AWS Compliance
	Center for Internet Security, AZURE Compliance
	Payment Card Industry Data Security Standards Compliance
	National Institute of Standards and Technology Compliance
	Information Security Management System, ISO/IEC 27001 Compliance
	Service Organization Control 2 Compliance
	Center for Internet Security, GCP Compliance
	Health Insurance Portability and Accountability Compliance

Usage

IMPORTANT: We do not pin modules to versions in our examples because of the difficulty of keeping the versions in the documentation in sync with the latest released versions. We highly recommend that in your code you pin the version to the exact version you are using so that your infrastructure remains stable, and update versions in a systematic way so that they do not catch you by surprise.

Also, because of a bug in the Terraform registry (hashicorp/terraform#21417), the registry shows many of our inputs as required when in fact they are optional. The table below correctly indicates which inputs are required.

For a complete example, see examples/complete.

For automated tests of the complete example using bats and Terratest (which tests and deploys the example on AWS), see test.

module "example" {
  source = "https://github.com/cloudposse/terraform-aws-transfer-sftp.git?ref=master"
  example = "Hello world!"
}

Examples

Here is an example of using this module:

• examples/complete - complete example of using this module

Makefile Targets

Available targets:

  help                                Help screen
  help/all                            Display help for all targets
  help/short                          This help short screen
  lint                                Lint terraform code

Requirements

Name	Version
terraform	>= 1.1.0
aws	>= 3.0, != 4.0.0, != 4.1.0, != 4.2.0, != 4.3.0, != 4.4.0, != 4.5.0, != 4.6.0, != 4.7.0, != 4.8.0

Providers

Name	Version
aws	>= 3.0, != 4.0.0, != 4.1.0, != 4.2.0, != 4.3.0, != 4.4.0, != 4.5.0, != 4.6.0, != 4.7.0, != 4.8.0

Modules

Name	Source	Version
iam_label	cloudposse/label/null	0.25.0
logging_label	cloudposse/label/null	0.25.0
this	cloudposse/label/null	0.25.0

Resources

Name	Type
aws_eip.sftp	resource
aws_iam_policy.logging	resource
aws_iam_policy.s3_access_for_sftp_users	resource
aws_iam_role.logging	resource
aws_iam_role.s3_access_for_sftp_users	resource
aws_route53_record.main	resource
aws_transfer_server.default	resource
aws_transfer_ssh_key.default	resource
aws_transfer_user.default	resource
aws_iam_policy_document.assume_role_policy	data source
aws_iam_policy_document.logging	data source
aws_iam_policy_document.s3_access_for_sftp_users	data source
aws_partition.default	data source
aws_s3_bucket.landing	data source

Inputs

Name	Description	Type	Default	Required
additional_tag_map	Additional key-value pairs to add to each map in tags_as_list_of_maps. Not added to tags or id. This is for some rare cases where resources want additional configuration of tags and therefore take a list of maps with tag key, value, and additional configuration.	map(string)	{}	no
address_allocation_ids	A list of address allocation IDs that are required to attach an Elastic IP address to your SFTP server's endpoint. This property can only be used when endpoint_type is set to VPC.	list(string)	[]	no
attributes	ID element. Additional attributes (e.g. workers or cluster) to add to id, in the order they appear in the list. New attributes are appended to the end of the list. The elements of the list are joined by the delimiter and treated as a single ID element.	list(string)	[]	no
context	Single object for setting entire context at once. See description of individual variables for details. Leave string and numeric variables as null to use default value. Individual variable settings (non-null) override settings in context object, except for attributes, tags, and additional_tag_map, which are merged.	any	{ "additional_tag_map": {}, "attributes": [], "delimiter": null, "descriptor_formats": {}, "enabled": true, "environment": null, "id_length_limit": null, "label_key_case": null, "label_order": [], "label_value_case": null, "labels_as_tags": [ "unset" ], "name": null, "namespace": null, "regex_replace_chars": null, "stage": null, "tags": {}, "tenant": null }	no
delimiter	Delimiter to be used between ID elements. Defaults to - (hyphen). Set to "" to use no delimiter at all.	string	null	no
descriptor_formats	Describe additional descriptors to be output in the descriptors output map. Map of maps. Keys are names of descriptors. Values are maps of the form {<br> format = string<br> labels = list(string)<br>} (Type is any so the map values can later be enhanced to provide additional options.) format is a Terraform format string to be passed to the format() function. labels is a list of labels, in order, to pass to format() function. Label values will be normalized before being passed to format() so they will be identical to how they appear in id. Default is {} (descriptors output will be empty).	any	{}	no
domain	Where your files are stored. S3 or EFS	string	"S3"	no
domain_name	Domain to use when connecting to the SFTP endpoint	string	""	no
eip_enabled	Whether to provision and attach an Elastic IP to be used as the SFTP endpoint. An EIP will be provisioned per subnet.	bool	false	no
enabled	Set to false to prevent the module from creating any resources	bool	null	no
environment	ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'	string	null	no
force_destroy	Forces the AWS Transfer Server to be destroyed	bool	false	no
id_length_limit	Limit id to this many characters (minimum 6). Set to 0 for unlimited length. Set to null for keep the existing setting, which defaults to 0. Does not affect id_full.	number	null	no
label_key_case	Controls the letter case of the tags keys (label names) for tags generated by this module. Does not affect keys of tags passed in via the tags input. Possible values: lower, title, upper. Default value: title.	string	null	no
label_order	The order in which the labels (ID elements) appear in the id. Defaults to ["namespace", "environment", "stage", "name", "attributes"]. You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present.	list(string)	null	no
label_value_case	Controls the letter case of ID elements (labels) as included in id, set as tag values, and output by this module individually. Does not affect values of tags passed in via the tags input. Possible values: lower, title, upper and none (no transformation). Set this to title and set delimiter to "" to yield Pascal Case IDs. Default value: lower.	string	null	no
labels_as_tags	Set of labels (ID elements) to include as tags in the tags output. Default is to include all labels. Tags with empty values will not be included in the tags output. Set to [] to suppress all generated tags. Notes: The value of the name tag, if included, will be the id, not the name. Unlike other null-label inputs, the initial setting of labels_as_tags cannot be changed in later chained modules. Attempts to change it will be silently ignored.	set(string)	[ "default" ]	no
name	ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'. This is the only ID element not also included as a tag. The "name" tag is set to the full id string. There is no tag with the value of the name input.	string	null	no
namespace	ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique	string	null	no
regex_replace_chars	Terraform regular expression (regex) string. Characters matching the regex will be removed from the ID elements. If not set, "/[^a-zA-Z0-9-]/" is used to remove all characters other than hyphens, letters and digits.	string	null	no
restricted_home	Restricts SFTP users so they only have access to their home directories.	bool	true	no
s3_bucket_name	This is the bucket that the SFTP users will use when managing files	string	n/a	yes
security_policy_name	Specifies the name of the security policy that is attached to the server. Possible values are TransferSecurityPolicy-2018-11, TransferSecurityPolicy-2020-06, and TransferSecurityPolicy-FIPS-2020-06. Default value is: TransferSecurityPolicy-2018-11.	string	"TransferSecurityPolicy-2018-11"	no
sftp_users	List of SFTP usernames and public keys. The keys user_name, public_key are required. The keys s3_bucket_name are optional.	any	{}	no
stage	ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'	string	null	no
subnet_ids	A list of subnet IDs that are required to host your SFTP server endpoint in your VPC. This property can only be used when endpoint_type is set to VPC.	list(string)	[]	no
tags	Additional tags (e.g. {'BusinessUnit': 'XYZ'}). Neither the tag keys nor the tag values will be modified by this module.	map(string)	{}	no
tenant	ID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is for	string	null	no
vpc_endpoint_id	The ID of the VPC endpoint. This property can only be used when endpoint_type is set to VPC_ENDPOINT	string	null	no
vpc_id	VPC ID that the AWS Transfer Server will be deployed to	string	null	no
vpc_security_group_ids	A list of security groups IDs that are available to attach to your server's endpoint. If no security groups are specified, the VPC's default security groups are automatically assigned to your endpoint. This property can only be used when endpoint_type is set to VPC.	list(string)	[]	no
zone_id	Route53 Zone ID to add the CNAME	string	""	no

Outputs

Name	Description
elastic_ips	Provisioned Elastic IPs
id	ID of the created example
s3_access_role_arns	Role ARNs for the S3 access
transfer_endpoint	The endpoint of the Transfer Server

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Related Projects

Check out these related projects.

• terraform-null-label - Terraform module designed to generate consistent names and tags for resources. Use terraform-null-label to implement a strict naming convention.

References

For additional context, refer to some of these links.

• Terraform Standard Module Structure - HashiCorp's standard module structure is a file and directory layout we recommend for reusable modules distributed in separate repositories.
• Terraform Module Requirements - HashiCorp's guidance on all the requirements for publishing a module. Meeting the requirements for publishing a module is extremely easy.
• Terraform random_integer Resource - The resource random_integer generates random values from a given range, described by the min and max attributes of a given resource.
• Terraform Version Pinning - The required_version setting can be used to constrain which versions of the Terraform CLI can be used with your configuration

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NOTE: Be sure to merge the latest changes from "upstream" before making a pull request!

Copyrights

Copyright © 2020-2022 Cloud Posse, LLC

License

See LICENSE for full details.

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
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  https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
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Contributors

Erik Osterman