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update site-to-site-vpn module version (#1144)
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48 changes: 25 additions & 23 deletions modules/site-to-site-vpn/README.md
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# Component: `site-to-site-vpn`

This component provisions a [Site-To-Site VPN](https://aws.amazon.com/vpn/site-to-site-vpn/) with a
target AWS VPC on one side of the tunnel.
The other (customer) side can be any VPN gateway endpoint, e.g. a hardware device, other cloud VPN, etc.
This component provisions a [Site-To-Site VPN](https://aws.amazon.com/vpn/site-to-site-vpn/) with a target AWS VPC on
one side of the tunnel. The other (customer) side can be any VPN gateway endpoint, e.g. a hardware device, other cloud
VPN, etc.

AWS Site-to-Site VPN is a fully-managed service that creates a secure connection between your data center or branch
office and your AWS resources using IP Security (IPSec) tunnels. When using Site-to-Site VPN, you can connect to both
your Amazon Virtual Private Clouds (VPC) and AWS Transit Gateway, and two tunnels per connection are used for
increased redundancy.
your Amazon Virtual Private Clouds (VPC) and AWS Transit Gateway, and two tunnels per connection are used for increased
redundancy.

The component provisions the following resources:

- AWS Virtual Private Gateway (a representation of the AWS side of the tunnel)

- AWS Customer Gateway (a representation of the other (remote) side of the tunnel). It requires:

- The gateway's Border Gateway Protocol (BGP) Autonomous System Number (ASN)
- `/32` IP of the VPN endpoint

- AWS Site-To-Site VPN connection. It creates two VPN tunnels for redundancy and requires:

- The IP CIDR ranges on each side of the tunnel
- Pre-shared Keys for each tunnel (can be auto-generated if not provided and saved into SSM Parameter Store)
- (Optional) IP CIDR ranges to be used inside each VPN tunnel
Expand All @@ -33,8 +35,8 @@ The component provisions the following resources:

## Post-tunnel creation requirements

Once the site-to-site VPN resources are deployed, you need to send the VPN configuration
from AWS side to the administrator of the remote side of the VPN connection. To do this:
Once the site-to-site VPN resources are deployed, you need to send the VPN configuration from AWS side to the
administrator of the remote side of the VPN connection. To do this:

1. Determine the infrastructure that will be used for the remote side, specifically:

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preshared_key_enabled: true
ssm_enabled: true
ssm_path_prefix: "/site-to-site-vpn"
`````
```
## Amazon side Autonomous System Number (ASN)
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| Name | Source | Version |
|------|--------|---------|
| <a name="module_iam_roles"></a> [iam\_roles](#module\_iam\_roles) | ../account-map/modules/iam-roles | n/a |
| <a name="module_site_to_site_vpn"></a> [site\_to\_site\_vpn](#module\_site\_to\_site\_vpn) | cloudposse/vpn-connection/aws | 1.3.0 |
| <a name="module_site_to_site_vpn"></a> [site\_to\_site\_vpn](#module\_site\_to\_site\_vpn) | cloudposse/vpn-connection/aws | 1.3.1 |
| <a name="module_this"></a> [this](#module\_this) | cloudposse/label/null | 0.25.0 |
| <a name="module_vpc"></a> [vpc](#module\_vpc) | cloudposse/stack-config/yaml//modules/remote-state | 1.5.0 |

Expand All @@ -151,34 +153,34 @@ atmos terraform apply site-to-site-vpn -s <stack>

| Name | Description | Type | Default | Required |
|------|-------------|------|---------|:--------:|
| <a name="input_additional_tag_map"></a> [additional\_tag\_map](#input\_additional\_tag\_map) | Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`.<br>This is for some rare cases where resources want additional configuration of tags<br>and therefore take a list of maps with tag key, value, and additional configuration. | `map(string)` | `{}` | no |
| <a name="input_attributes"></a> [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,<br>in the order they appear in the list. New attributes are appended to the<br>end of the list. The elements of the list are joined by the `delimiter`<br>and treated as a single ID element. | `list(string)` | `[]` | no |
| <a name="input_context"></a> [context](#input\_context) | Single object for setting entire context at once.<br>See description of individual variables for details.<br>Leave string and numeric variables as `null` to use default value.<br>Individual variable settings (non-null) override settings in context object,<br>except for attributes, tags, and additional\_tag\_map, which are merged. | `any` | <pre>{<br> "additional_tag_map": {},<br> "attributes": [],<br> "delimiter": null,<br> "descriptor_formats": {},<br> "enabled": true,<br> "environment": null,<br> "id_length_limit": null,<br> "label_key_case": null,<br> "label_order": [],<br> "label_value_case": null,<br> "labels_as_tags": [<br> "unset"<br> ],<br> "name": null,<br> "namespace": null,<br> "regex_replace_chars": null,<br> "stage": null,<br> "tags": {},<br> "tenant": null<br>}</pre> | no |
| <a name="input_additional_tag_map"></a> [additional\_tag\_map](#input\_additional\_tag\_map) | Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`.<br/>This is for some rare cases where resources want additional configuration of tags<br/>and therefore take a list of maps with tag key, value, and additional configuration. | `map(string)` | `{}` | no |
| <a name="input_attributes"></a> [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,<br/>in the order they appear in the list. New attributes are appended to the<br/>end of the list. The elements of the list are joined by the `delimiter`<br/>and treated as a single ID element. | `list(string)` | `[]` | no |
| <a name="input_context"></a> [context](#input\_context) | Single object for setting entire context at once.<br/>See description of individual variables for details.<br/>Leave string and numeric variables as `null` to use default value.<br/>Individual variable settings (non-null) override settings in context object,<br/>except for attributes, tags, and additional\_tag\_map, which are merged. | `any` | <pre>{<br/> "additional_tag_map": {},<br/> "attributes": [],<br/> "delimiter": null,<br/> "descriptor_formats": {},<br/> "enabled": true,<br/> "environment": null,<br/> "id_length_limit": null,<br/> "label_key_case": null,<br/> "label_order": [],<br/> "label_value_case": null,<br/> "labels_as_tags": [<br/> "unset"<br/> ],<br/> "name": null,<br/> "namespace": null,<br/> "regex_replace_chars": null,<br/> "stage": null,<br/> "tags": {},<br/> "tenant": null<br/>}</pre> | no |
| <a name="input_customer_gateway_bgp_asn"></a> [customer\_gateway\_bgp\_asn](#input\_customer\_gateway\_bgp\_asn) | The Customer Gateway's Border Gateway Protocol (BGP) Autonomous System Number (ASN) | `number` | n/a | yes |
| <a name="input_customer_gateway_ip_address"></a> [customer\_gateway\_ip\_address](#input\_customer\_gateway\_ip\_address) | The IPv4 address for the Customer Gateway device's outside interface. Set to `null` to not create the Customer Gateway | `string` | `null` | no |
| <a name="input_delimiter"></a> [delimiter](#input\_delimiter) | Delimiter to be used between ID elements.<br>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no |
| <a name="input_descriptor_formats"></a> [descriptor\_formats](#input\_descriptor\_formats) | Describe additional descriptors to be output in the `descriptors` output map.<br>Map of maps. Keys are names of descriptors. Values are maps of the form<br>`{<br> format = string<br> labels = list(string)<br>}`<br>(Type is `any` so the map values can later be enhanced to provide additional options.)<br>`format` is a Terraform format string to be passed to the `format()` function.<br>`labels` is a list of labels, in order, to pass to `format()` function.<br>Label values will be normalized before being passed to `format()` so they will be<br>identical to how they appear in `id`.<br>Default is `{}` (`descriptors` output will be empty). | `any` | `{}` | no |
| <a name="input_delimiter"></a> [delimiter](#input\_delimiter) | Delimiter to be used between ID elements.<br/>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no |
| <a name="input_descriptor_formats"></a> [descriptor\_formats](#input\_descriptor\_formats) | Describe additional descriptors to be output in the `descriptors` output map.<br/>Map of maps. Keys are names of descriptors. Values are maps of the form<br/>`{<br/> format = string<br/> labels = list(string)<br/>}`<br/>(Type is `any` so the map values can later be enhanced to provide additional options.)<br/>`format` is a Terraform format string to be passed to the `format()` function.<br/>`labels` is a list of labels, in order, to pass to `format()` function.<br/>Label values will be normalized before being passed to `format()` so they will be<br/>identical to how they appear in `id`.<br/>Default is `{}` (`descriptors` output will be empty). | `any` | `{}` | no |
| <a name="input_enabled"></a> [enabled](#input\_enabled) | Set to false to prevent the module from creating any resources | `bool` | `null` | no |
| <a name="input_environment"></a> [environment](#input\_environment) | ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT' | `string` | `null` | no |
| <a name="input_existing_transit_gateway_id"></a> [existing\_transit\_gateway\_id](#input\_existing\_transit\_gateway\_id) | Existing Transit Gateway ID. If provided, the module will not create a Virtual Private Gateway but instead will use the transit\_gateway. For setting up transit gateway we can use the cloudposse/transit-gateway/aws module and pass the output transit\_gateway\_id to this variable | `string` | `""` | no |
| <a name="input_id_length_limit"></a> [id\_length\_limit](#input\_id\_length\_limit) | Limit `id` to this many characters (minimum 6).<br>Set to `0` for unlimited length.<br>Set to `null` for keep the existing setting, which defaults to `0`.<br>Does not affect `id_full`. | `number` | `null` | no |
| <a name="input_label_key_case"></a> [label\_key\_case](#input\_label\_key\_case) | Controls the letter case of the `tags` keys (label names) for tags generated by this module.<br>Does not affect keys of tags passed in via the `tags` input.<br>Possible values: `lower`, `title`, `upper`.<br>Default value: `title`. | `string` | `null` | no |
| <a name="input_label_order"></a> [label\_order](#input\_label\_order) | The order in which the labels (ID elements) appear in the `id`.<br>Defaults to ["namespace", "environment", "stage", "name", "attributes"].<br>You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present. | `list(string)` | `null` | no |
| <a name="input_label_value_case"></a> [label\_value\_case](#input\_label\_value\_case) | Controls the letter case of ID elements (labels) as included in `id`,<br>set as tag values, and output by this module individually.<br>Does not affect values of tags passed in via the `tags` input.<br>Possible values: `lower`, `title`, `upper` and `none` (no transformation).<br>Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs.<br>Default value: `lower`. | `string` | `null` | no |
| <a name="input_labels_as_tags"></a> [labels\_as\_tags](#input\_labels\_as\_tags) | Set of labels (ID elements) to include as tags in the `tags` output.<br>Default is to include all labels.<br>Tags with empty values will not be included in the `tags` output.<br>Set to `[]` to suppress all generated tags.<br>**Notes:**<br> The value of the `name` tag, if included, will be the `id`, not the `name`.<br> Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be<br> changed in later chained modules. Attempts to change it will be silently ignored. | `set(string)` | <pre>[<br> "default"<br>]</pre> | no |
| <a name="input_name"></a> [name](#input\_name) | ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.<br>This is the only ID element not also included as a `tag`.<br>The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input. | `string` | `null` | no |
| <a name="input_id_length_limit"></a> [id\_length\_limit](#input\_id\_length\_limit) | Limit `id` to this many characters (minimum 6).<br/>Set to `0` for unlimited length.<br/>Set to `null` for keep the existing setting, which defaults to `0`.<br/>Does not affect `id_full`. | `number` | `null` | no |
| <a name="input_label_key_case"></a> [label\_key\_case](#input\_label\_key\_case) | Controls the letter case of the `tags` keys (label names) for tags generated by this module.<br/>Does not affect keys of tags passed in via the `tags` input.<br/>Possible values: `lower`, `title`, `upper`.<br/>Default value: `title`. | `string` | `null` | no |
| <a name="input_label_order"></a> [label\_order](#input\_label\_order) | The order in which the labels (ID elements) appear in the `id`.<br/>Defaults to ["namespace", "environment", "stage", "name", "attributes"].<br/>You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present. | `list(string)` | `null` | no |
| <a name="input_label_value_case"></a> [label\_value\_case](#input\_label\_value\_case) | Controls the letter case of ID elements (labels) as included in `id`,<br/>set as tag values, and output by this module individually.<br/>Does not affect values of tags passed in via the `tags` input.<br/>Possible values: `lower`, `title`, `upper` and `none` (no transformation).<br/>Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs.<br/>Default value: `lower`. | `string` | `null` | no |
| <a name="input_labels_as_tags"></a> [labels\_as\_tags](#input\_labels\_as\_tags) | Set of labels (ID elements) to include as tags in the `tags` output.<br/>Default is to include all labels.<br/>Tags with empty values will not be included in the `tags` output.<br/>Set to `[]` to suppress all generated tags.<br/>**Notes:**<br/> The value of the `name` tag, if included, will be the `id`, not the `name`.<br/> Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be<br/> changed in later chained modules. Attempts to change it will be silently ignored. | `set(string)` | <pre>[<br/> "default"<br/>]</pre> | no |
| <a name="input_name"></a> [name](#input\_name) | ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.<br/>This is the only ID element not also included as a `tag`.<br/>The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input. | `string` | `null` | no |
| <a name="input_namespace"></a> [namespace](#input\_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 |
| <a name="input_preshared_key_enabled"></a> [preshared\_key\_enabled](#input\_preshared\_key\_enabled) | Flag to enable adding the preshared keys to the VPN connection | `bool` | `true` | no |
| <a name="input_regex_replace_chars"></a> [regex\_replace\_chars](#input\_regex\_replace\_chars) | Terraform regular expression (regex) string.<br>Characters matching the regex will be removed from the ID elements.<br>If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. | `string` | `null` | no |
| <a name="input_regex_replace_chars"></a> [regex\_replace\_chars](#input\_regex\_replace\_chars) | Terraform regular expression (regex) string.<br/>Characters matching the regex will be removed from the ID elements.<br/>If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. | `string` | `null` | no |
| <a name="input_region"></a> [region](#input\_region) | AWS Region | `string` | n/a | yes |
| <a name="input_ssm_enabled"></a> [ssm\_enabled](#input\_ssm\_enabled) | Flag to enable saving the `tunnel1_preshared_key` and `tunnel2_preshared_key` in the SSM Parameter Store | `bool` | `false` | no |
| <a name="input_ssm_path_prefix"></a> [ssm\_path\_prefix](#input\_ssm\_path\_prefix) | SSM Key path prefix for the associated SSM parameters | `string` | `""` | no |
| <a name="input_stage"></a> [stage](#input\_stage) | ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' | `string` | `null` | no |
| <a name="input_tags"></a> [tags](#input\_tags) | Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).<br>Neither the tag keys nor the tag values will be modified by this module. | `map(string)` | `{}` | no |
| <a name="input_tags"></a> [tags](#input\_tags) | Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).<br/>Neither the tag keys nor the tag values will be modified by this module. | `map(string)` | `{}` | no |
| <a name="input_tenant"></a> [tenant](#input\_tenant) | ID element \_(Rarely used, not included by default)\_. A customer identifier, indicating who this instance of a resource is for | `string` | `null` | no |
| <a name="input_transit_gateway_enabled"></a> [transit\_gateway\_enabled](#input\_transit\_gateway\_enabled) | Set to true to enable VPN connection to transit gateway and then pass in the existing\_transit\_gateway\_id | `bool` | `false` | no |
| <a name="input_transit_gateway_route_table_id"></a> [transit\_gateway\_route\_table\_id](#input\_transit\_gateway\_route\_table\_id) | The ID of the route table for the transit gateway that you want to associate + propagate the VPN connection's TGW attachment | `string` | `null` | no |
| <a name="input_transit_gateway_routes"></a> [transit\_gateway\_routes](#input\_transit\_gateway\_routes) | A map of transit gateway routes to create on the given TGW route table (via `transit_gateway_route_table_id`) for the created VPN Attachment. Use the key in the map to describe the route | <pre>map(object({<br> blackhole = optional(bool, false)<br> destination_cidr_block = string<br> }))</pre> | `{}` | no |
| <a name="input_transit_gateway_routes"></a> [transit\_gateway\_routes](#input\_transit\_gateway\_routes) | A map of transit gateway routes to create on the given TGW route table (via `transit_gateway_route_table_id`) for the created VPN Attachment. Use the key in the map to describe the route | <pre>map(object({<br/> blackhole = optional(bool, false)<br/> destination_cidr_block = string<br/> }))</pre> | `{}` | no |
| <a name="input_vpc_component_name"></a> [vpc\_component\_name](#input\_vpc\_component\_name) | Atmos VPC component name | `string` | `"vpc"` | no |
| <a name="input_vpn_connection_local_ipv4_network_cidr"></a> [vpn\_connection\_local\_ipv4\_network\_cidr](#input\_vpn\_connection\_local\_ipv4\_network\_cidr) | The IPv4 CIDR on the Customer Gateway (on-premises) side of the VPN connection | `string` | `"0.0.0.0/0"` | no |
| <a name="input_vpn_connection_log_retention_in_days"></a> [vpn\_connection\_log\_retention\_in\_days](#input\_vpn\_connection\_log\_retention\_in\_days) | Specifies the number of days you want to retain log events | `number` | `30` | no |
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2 changes: 1 addition & 1 deletion modules/site-to-site-vpn/main.tf
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Expand Up @@ -17,7 +17,7 @@ locals {

module "site_to_site_vpn" {
source = "cloudposse/vpn-connection/aws"
version = "1.3.0"
version = "1.3.1"

vpc_id = local.vpc_outputs.vpc_id
vpn_gateway_amazon_side_asn = var.vpn_gateway_amazon_side_asn
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