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Terraform module for generating an SSH public/private key file.

cloudposse.com/accelerate

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Apache-2.0 license

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Terraform module for generating an SSH public key file.

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Usage

module"ssh_key_pair" {source="cloudposse/ssh-key-pair/tls"# Cloud Posse recommends pinning every module to a specific version# version = "x.x.x"namespace="eg"stage="test"name="app"ssh_public_key_path="/secrets"private_key_extension=".pem"public_key_extension=".pub"chmod_command="chmod 600 %v"}

Important

In Cloud Posse's examples, we avoid pinning modules to specific versions to prevent discrepancies between the documentationand the latest released versions. However, for your own projects, we strongly advise pinning each module to the exact versionyou're using. This practice ensures the stability of your infrastructure. Additionally, we recommend implementing a systematicapproach for updating versions to avoid unexpected changes.

Requirements

Name	Version
terraform	>= 0.13.0
local	>= 1.3
null	>= 2.1
tls	>= 2.0

Providers

Name	Version
local	>= 1.3
null	>= 2.1
tls	>= 2.0

Modules

Name	Source	Version
this	cloudposse/label/null	0.25.0

Resources

Name	Type
local_file.private_key_pem	resource
local_file.public_key_openssh	resource
null_resource.chmod	resource
tls_private_key.default	resource

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
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
chmod_command	Template of the command executed on the private key file	`string`	`"chmod 600 %v"`	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
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
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
private_key_extension	Private key extension	`string`	`""`	no
private_key_output_enabled	Add the private key as a terraform output private_key	`bool`	`false`	no
public_key_extension	Public key extension	`string`	`".pub"`	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
ssh_key_algorithm	SSH key algorithm	`string`	`"RSA"`	no
ssh_public_key_path	Path to SSH public key directory (e.g.`/secrets`)	`string`	n/a	yes
stage	ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'	`string`	`null`	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

Outputs

Name	Description
key_name	Name of SSH key
private_key	Content of the generated private key
public_key	Content of the generated public key

Related Projects

Check out these related projects.

terraform-aws-acm-request-certificate - Terraform module to request an ACM certificate for a domain name and create a CNAME record in the DNS zone to complete certificate validation
bastion - 🔒Secure Bastion implemented as Docker Container running Alpine Linux with Google Authenticator & DUO MFA support
terraform-aws-key-pai - Terraform Module to Automatically Generate SSH Key Pairs (Public/Private Keys)

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✨ Contributing

This project is under active development, and we encourage contributions from our community.

Many thanks to our outstanding contributors:

For 🐛 bug reports & feature requests, please use theissue tracker.

In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.

Review ourCode of Conduct andContributor Guidelines.
Fork the repo on GitHub
Clone the project to your own machine
Commit changes to your own branch
Push your work back up to your fork
Submit aPull Request so that we can review your changes

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

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License

Preamble to the Apache License, Version 2.0

Complete license is available in theLICENSE file.

Licensed to the Apache Software Foundation (ASF) under oneor more contributor license agreements.  See the NOTICE filedistributed with this work for additional informationregarding copyright ownership.  The ASF licenses this fileto you under the Apache License, Version 2.0 (the"License"); you may not use this file except in compliancewith the License.  You may obtain a copy of the License at  https://www.apache.org/licenses/LICENSE-2.0Unless required by applicable law or agreed to in writing,software distributed under the License is distributed on an"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANYKIND, either express or implied.  See the License for thespecific language governing permissions and limitationsunder the License.