Awesome

Terraform module to provision a VPC with Internet Gateway. Contains a submodule for provisioning Interface and/or Gateway VPC Endpoints. This module also supports provisioning additional CIDR blocks for the VPC, with or without using IPAM.

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Examples

module "vpc" {
  source = "cloudposse/vpc/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version = "x.x.x"
  namespace = "eg"
  stage     = "test"
  name      = "app"

  ipv4_primary_cidr_block = "10.0.0.0/16"

  assign_generated_ipv6_cidr_block = true
}

Full example with terraform-aws-dynamic-subnets:

module "vpc" {
  source = "cloudposse/vpc/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"
  namespace = "eg"
  stage     = "test"
  name      = "app"

  ipv4_primary_cidr_block = "10.0.0.0/16"

  assign_generated_ipv6_cidr_block = false
}

module "dynamic_subnets" {
  source = "cloudposse/dynamic-subnets/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"
  namespace          = "eg"
  stage              = "test"
  name               = "app"
  availability_zones = ["us-west-2a","us-west-2b","us-west-2c"]
  vpc_id             = module.vpc.vpc_id
  igw_id             = [module.vpc.igw_id]
  cidr_block         = "10.0.0.0/16"
}

Submodule for provisioning VPC Endpoints:

module "vpc_endpoints" {
  source = "cloudposse/vpc/aws//modules/vpc-endpoints"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"

  vpc_id = module.vpc.vpc_id

  gateway_vpc_endpoints = {
    "s3" = {
      name = "s3"
      policy = jsonencode({
        Version = "2012-10-17"
        Statement = [
          {
            Action = [
              "s3:*",
            ]
            Effect    = "Allow"
            Principal = "*"
            Resource  = "*"
          },
        ]
      })
    }
  }
  interface_vpc_endpoints = {
    "ec2" = {
      name                = "ec2"
      security_group_ids  = ["sg-12341234123412345"]
      subnet_ids          = module.dynamic_subnets.private_subnet_ids
      policy              = null
      private_dns_enabled = false
    }
  }
}

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
<a name="requirement_terraform"></a> terraform	>= 1.0.0
<a name="requirement_aws"></a> aws	>= 4.9.0

Providers

Name	Version
<a name="provider_aws"></a> aws	>= 4.9.0

Modules

Name	Source	Version
<a name="module_label"></a> label	cloudposse/label/null	0.25.0
<a name="module_this"></a> this	cloudposse/label/null	0.25.0

Resources

Name	Type
aws_default_network_acl.default	resource
aws_default_route_table.default	resource
aws_default_security_group.default	resource
aws_egress_only_internet_gateway.default	resource
aws_internet_gateway.default	resource
aws_vpc.default	resource
aws_vpc_ipv4_cidr_block_association.default	resource
aws_vpc_ipv6_cidr_block_association.default	resource

Inputs

Name	Description	Type	Default	Required
<a name="input_additional_tag_map"></a> 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_assign_generated_ipv6_cidr_block"></a> assign_generated_ipv6_cidr_block	When `true`, assign AWS generated IPv6 CIDR block to the VPC. Conflicts with `ipv6_ipam_pool_id`.	`bool`	`true`	no
<a name="input_attributes"></a> 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	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_default_network_acl_deny_all"></a> default_network_acl_deny_all	When `true`, manage the default network acl and remove all rules, disabling all ingress and egress.<br/>When `false`, do not mange the default networking acl, allowing it to be managed by another component.	`bool`	`false`	no
<a name="input_default_route_table_no_routes"></a> default_route_table_no_routes	When `true`, manage the default route table and remove all routes, disabling all ingress and egress.<br/>When `false`, do not mange the default route table, allowing it to be managed by another component.<br/>Conflicts with Terraform resource `aws_main_route_table_association`.	`bool`	`false`	no
<a name="input_default_security_group_deny_all"></a> default_security_group_deny_all	When `true`, manage the default security group and remove all rules, disabling all ingress and egress.<br/>When `false`, do not manage the default security group, allowing it to be managed by another component.	`bool`	`true`	no
<a name="input_delimiter"></a> 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	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_dns_hostnames_enabled"></a> dns_hostnames_enabled	Set `true` to enable DNS hostnames in the VPC	`bool`	`true`	no
<a name="input_dns_support_enabled"></a> dns_support_enabled	Set `true` to enable DNS resolution in the VPC through the Amazon provided DNS server	`bool`	`true`	no
<a name="input_enabled"></a> enabled	Set to false to prevent the module from creating any resources	`bool`	`null`	no
<a name="input_environment"></a> 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_id_length_limit"></a> 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_instance_tenancy"></a> instance_tenancy	A tenancy option for instances launched into the VPC	`string`	`"default"`	no
<a name="input_internet_gateway_enabled"></a> internet_gateway_enabled	Set `true` to create an Internet Gateway for the VPC	`bool`	`true`	no
<a name="input_ipv4_additional_cidr_block_associations"></a> ipv4_additional_cidr_block_associations	IPv4 CIDR blocks to assign to the VPC.<br/>`ipv4_cidr_block` can be set explicitly, or set to `null` with the CIDR block derived from `ipv4_ipam_pool_id` using `ipv4_netmask_length`.<br/>Map keys must be known at `plan` time, and are only used to track changes.	<pre>map(object({<br/> ipv4_cidr_block = string<br/> ipv4_ipam_pool_id = string<br/> ipv4_netmask_length = number<br/> }))</pre>	`{}`	no
<a name="input_ipv4_cidr_block_association_timeouts"></a> ipv4_cidr_block_association_timeouts	Timeouts (in `go` duration format) for creating and destroying IPv4 CIDR block associations	<pre>object({<br/> create = string<br/> delete = string<br/> })</pre>	`null`	no
<a name="input_ipv4_primary_cidr_block"></a> ipv4_primary_cidr_block	The primary IPv4 CIDR block for the VPC.<br/>Either `ipv4_primary_cidr_block` or `ipv4_primary_cidr_block_association` must be set, but not both.	`string`	`null`	no
<a name="input_ipv4_primary_cidr_block_association"></a> ipv4_primary_cidr_block_association	Configuration of the VPC's primary IPv4 CIDR block via IPAM. Conflicts with `ipv4_primary_cidr_block`.<br/>One of `ipv4_primary_cidr_block` or `ipv4_primary_cidr_block_association` must be set.<br/>Additional CIDR blocks can be set via `ipv4_additional_cidr_block_associations`.	<pre>object({<br/> ipv4_ipam_pool_id = string<br/> ipv4_netmask_length = number<br/> })</pre>	`null`	no
<a name="input_ipv6_additional_cidr_block_associations"></a> ipv6_additional_cidr_block_associations	IPv6 CIDR blocks to assign to the VPC (in addition to the autogenerated one).<br/>`ipv6_cidr_block` can be set explicitly, or set to `null` with the CIDR block derived from `ipv6_ipam_pool_id` using `ipv6_netmask_length`.<br/>Map keys must be known at `plan` time and are used solely to prevent unnecessary changes.	<pre>map(object({<br/> ipv6_cidr_block = string<br/> ipv6_ipam_pool_id = string<br/> ipv6_netmask_length = number<br/> }))</pre>	`{}`	no
<a name="input_ipv6_cidr_block_association_timeouts"></a> ipv6_cidr_block_association_timeouts	Timeouts (in `go` duration format) for creating and destroying IPv6 CIDR block associations	<pre>object({<br/> create = string<br/> delete = string<br/> })</pre>	`null`	no
<a name="input_ipv6_cidr_block_network_border_group"></a> ipv6_cidr_block_network_border_group	Set this to restrict advertisement of public addresses to a specific Network Border Group such as a LocalZone.<br/>Requires `assign_generated_ipv6_cidr_block` to be set to `true`.	`string`	`null`	no
<a name="input_ipv6_egress_only_internet_gateway_enabled"></a> ipv6_egress_only_internet_gateway_enabled	Set `true` to create an IPv6 Egress-Only Internet Gateway for the VPC	`bool`	`false`	no
<a name="input_ipv6_primary_cidr_block_association"></a> ipv6_primary_cidr_block_association	Primary IPv6 CIDR block to assign to the VPC. Conflicts with `assign_generated_ipv6_cidr_block`.<br/>`ipv6_cidr_block` can be set explicitly, or set to `null` with the CIDR block derived from `ipv6_ipam_pool_id` using `ipv6_netmask_length`.	<pre>object({<br/> ipv6_cidr_block = string<br/> ipv6_ipam_pool_id = string<br/> ipv6_netmask_length = number<br/> })</pre>	`null`	no
<a name="input_label_key_case"></a> 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	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	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	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	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	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_network_address_usage_metrics_enabled"></a> network_address_usage_metrics_enabled	Set `true` to enable Network Address Usage Metrics for the VPC	`bool`	`false`	no
<a name="input_regex_replace_chars"></a> 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_stage"></a> 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	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	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
<a name="output_additional_cidr_blocks"></a> additional_cidr_blocks	A list of the additional IPv4 CIDR blocks associated with the VPC
<a name="output_additional_cidr_blocks_to_association_ids"></a> additional_cidr_blocks_to_association_ids	A map of the additional IPv4 CIDR blocks to VPC CIDR association IDs
<a name="output_additional_ipv6_cidr_blocks"></a> additional_ipv6_cidr_blocks	A list of the additional IPv6 CIDR blocks associated with the VPC
<a name="output_additional_ipv6_cidr_blocks_to_association_ids"></a> additional_ipv6_cidr_blocks_to_association_ids	A map of the additional IPv6 CIDR blocks to VPC CIDR association IDs
<a name="output_igw_id"></a> igw_id	The ID of the Internet Gateway
<a name="output_ipv6_cidr_block_network_border_group"></a> ipv6_cidr_block_network_border_group	The IPv6 Network Border Group Zone name
<a name="output_ipv6_egress_only_igw_id"></a> ipv6_egress_only_igw_id	The ID of the egress-only Internet Gateway
<a name="output_vpc_arn"></a> vpc_arn	The ARN of the VPC
<a name="output_vpc_cidr_block"></a> vpc_cidr_block	The primary IPv4 CIDR block of the VPC
<a name="output_vpc_default_network_acl_id"></a> vpc_default_network_acl_id	The ID of the network ACL created by default on VPC creation
<a name="output_vpc_default_route_table_id"></a> vpc_default_route_table_id	The ID of the route table created by default on VPC creation
<a name="output_vpc_default_security_group_id"></a> vpc_default_security_group_id	The ID of the security group created by default on VPC creation
<a name="output_vpc_id"></a> vpc_id	The ID of the VPC
<a name="output_vpc_ipv6_association_id"></a> vpc_ipv6_association_id	The association ID for the primary IPv6 CIDR block
<a name="output_vpc_ipv6_cidr_block"></a> vpc_ipv6_cidr_block	The primary IPv6 CIDR block
<a name="output_vpc_main_route_table_id"></a> vpc_main_route_table_id	The ID of the main route table associated with this VPC

Related Projects

Check out these related projects.

terraform-aws-vpc-peering - Terraform module to create a peering connection between two VPCs
terraform-aws-kops-vpc-peering - Terraform module to create a peering connection between a backing services VPC and a VPC created by Kops
terraform-aws-dynamic-subnets - Terraform module for public and private subnets provisioning in existing VPC
terraform-aws-multi-az-subnets - Terraform module for multi-AZ public and private subnets provisioning
terraform-aws-named-subnets - Terraform module for named subnets provisioning.

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