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This component is responsible for provisioning a generic Application Load Balancer. It depends on the vpc and dns-delegated components.

Usage

Stack Level: Regional

Here's an example snippet for how to use this component.

components:
  terraform:
    alb:
      vars:
        https_ssl_policy: ELBSecurityPolicy-FS-1-2-Res-2020-10
        health_check_path: /api/healthz

Requirements

Name	Version
<a name="requirement_terraform"></a> terraform	>= 1.0.0
<a name="requirement_aws"></a> aws	>= 4.0
<a name="requirement_local"></a> local	>= 2.1

Providers

No providers.

Modules

Name	Source	Version
<a name="module_acm"></a> acm	cloudposse/stack-config/yaml//modules/remote-state	1.5.0
<a name="module_alb"></a> alb	cloudposse/alb/aws	1.11.1
<a name="module_dns_delegated"></a> dns_delegated	cloudposse/stack-config/yaml//modules/remote-state	1.5.0
<a name="module_iam_roles"></a> iam_roles	../account-map/modules/iam-roles	n/a
<a name="module_this"></a> this	cloudposse/label/null	0.25.0
<a name="module_vpc"></a> vpc	cloudposse/stack-config/yaml//modules/remote-state	1.5.0

Resources

No resources.

Inputs

Name	Description	Type	Default	Required
<a name="input_access_logs_enabled"></a> access_logs_enabled	A boolean flag to enable/disable access_logs	`bool`	`true`	no
<a name="input_access_logs_prefix"></a> access_logs_prefix	The S3 log bucket prefix	`string`	`""`	no
<a name="input_access_logs_s3_bucket_id"></a> access_logs_s3_bucket_id	An external S3 Bucket name to store access logs in. If specified, no logging bucket will be created.	`string`	`null`	no
<a name="input_acm_component_name"></a> acm_component_name	Atmos `acm` component name	`string`	`"acm"`	no
<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_alb_access_logs_s3_bucket_force_destroy"></a> alb_access_logs_s3_bucket_force_destroy	A boolean that indicates all objects should be deleted from the ALB access logs S3 bucket so that the bucket can be destroyed without error	`bool`	`false`	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_cross_zone_load_balancing_enabled"></a> cross_zone_load_balancing_enabled	A boolean flag to enable/disable cross zone load balancing	`bool`	`true`	no
<a name="input_deletion_protection_enabled"></a> deletion_protection_enabled	A boolean flag to enable/disable deletion protection for ALB	`bool`	`false`	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_deregistration_delay"></a> deregistration_delay	The amount of time to wait in seconds before changing the state of a deregistering target to unused	`number`	`15`	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_acm_enabled"></a> dns_acm_enabled	If `true`, use the ACM ARN created by the given `dns-delegated` component. Otherwise, use the ACM ARN created by the given `acm` component.	`bool`	`false`	no
<a name="input_dns_delegated_component_name"></a> dns_delegated_component_name	Atmos `dns-delegated` component name	`string`	`"dns-delegated"`	no
<a name="input_dns_delegated_environment_name"></a> dns_delegated_environment_name	`dns-delegated` component environment name	`string`	`null`	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_health_check_healthy_threshold"></a> health_check_healthy_threshold	The number of consecutive health checks successes required before considering an unhealthy target healthy	`number`	`2`	no
<a name="input_health_check_interval"></a> health_check_interval	The duration in seconds in between health checks	`number`	`15`	no
<a name="input_health_check_matcher"></a> health_check_matcher	The HTTP response codes to indicate a healthy check	`string`	`"200-399"`	no
<a name="input_health_check_path"></a> health_check_path	The destination for the health check request	`string`	`"/"`	no
<a name="input_health_check_port"></a> health_check_port	The port to use for the healthcheck	`string`	`"traffic-port"`	no
<a name="input_health_check_timeout"></a> health_check_timeout	The amount of time to wait in seconds before failing a health check request	`number`	`10`	no
<a name="input_health_check_unhealthy_threshold"></a> health_check_unhealthy_threshold	The number of consecutive health check failures required before considering the target unhealthy	`number`	`2`	no
<a name="input_http2_enabled"></a> http2_enabled	A boolean flag to enable/disable HTTP/2	`bool`	`true`	no
<a name="input_http_enabled"></a> http_enabled	A boolean flag to enable/disable HTTP listener	`bool`	`true`	no
<a name="input_http_ingress_cidr_blocks"></a> http_ingress_cidr_blocks	List of CIDR blocks to allow in HTTP security group	`list(string)`	<pre>[<br> "0.0.0.0/0"<br>]</pre>	no
<a name="input_http_ingress_prefix_list_ids"></a> http_ingress_prefix_list_ids	List of prefix list IDs for allowing access to HTTP ingress security group	`list(string)`	`[]`	no
<a name="input_http_port"></a> http_port	The port for the HTTP listener	`number`	`80`	no
<a name="input_http_redirect"></a> http_redirect	A boolean flag to enable/disable HTTP redirect to HTTPS	`bool`	`true`	no
<a name="input_https_enabled"></a> https_enabled	A boolean flag to enable/disable HTTPS listener	`bool`	`true`	no
<a name="input_https_ingress_cidr_blocks"></a> https_ingress_cidr_blocks	List of CIDR blocks to allow in HTTPS security group	`list(string)`	<pre>[<br> "0.0.0.0/0"<br>]</pre>	no
<a name="input_https_ingress_prefix_list_ids"></a> https_ingress_prefix_list_ids	List of prefix list IDs for allowing access to HTTPS ingress security group	`list(string)`	`[]`	no
<a name="input_https_port"></a> https_port	The port for the HTTPS listener	`number`	`443`	no
<a name="input_https_ssl_policy"></a> https_ssl_policy	The name of the SSL Policy for the listener	`string`	`"ELBSecurityPolicy-TLS13-1-2-2021-06"`	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_idle_timeout"></a> idle_timeout	The time in seconds that the connection is allowed to be idle	`number`	`60`	no
<a name="input_internal"></a> internal	A boolean flag to determine whether the ALB should be internal	`bool`	`false`	no
<a name="input_ip_address_type"></a> ip_address_type	The type of IP addresses used by the subnets for your load balancer. The possible values are `ipv4` and `dualstack`.	`string`	`"ipv4"`	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_lifecycle_rule_enabled"></a> lifecycle_rule_enabled	A boolean that indicates whether the s3 log bucket lifecycle rule should be enabled.	`bool`	`true`	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_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_region"></a> region	AWS Region	`string`	n/a	yes
<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_stickiness"></a> stickiness	Target group sticky configuration	<pre>object({<br> cookie_duration = number<br> enabled = bool<br> })</pre>	`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_target_group_name"></a> target_group_name	The name for the default target group, uses a module label name if left empty	`string`	`""`	no
<a name="input_target_group_port"></a> target_group_port	The port for the default target group	`number`	`80`	no
<a name="input_target_group_protocol"></a> target_group_protocol	The protocol for the default target group HTTP or HTTPS	`string`	`"HTTP"`	no
<a name="input_target_group_target_type"></a> target_group_target_type	The type (`instance`, `ip` or `lambda`) of targets that can be registered with the target group	`string`	`"ip"`	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
<a name="input_vpc_component_name"></a> vpc_component_name	Atmos `vpc` component name	`string`	`"vpc"`	no

Outputs

Name	Description
<a name="output_access_logs_bucket_id"></a> access_logs_bucket_id	The S3 bucket ID for access logs
<a name="output_alb_arn"></a> alb_arn	The ARN of the ALB
<a name="output_alb_arn_suffix"></a> alb_arn_suffix	The ARN suffix of the ALB
<a name="output_alb_dns_name"></a> alb_dns_name	DNS name of ALB
<a name="output_alb_name"></a> alb_name	The ARN suffix of the ALB
<a name="output_alb_zone_id"></a> alb_zone_id	The ID of the zone which ALB is provisioned
<a name="output_default_target_group_arn"></a> default_target_group_arn	The default target group ARN
<a name="output_http_listener_arn"></a> http_listener_arn	The ARN of the HTTP forwarding listener
<a name="output_http_redirect_listener_arn"></a> http_redirect_listener_arn	The ARN of the HTTP to HTTPS redirect listener
<a name="output_https_listener_arn"></a> https_listener_arn	The ARN of the HTTPS listener
<a name="output_listener_arns"></a> listener_arns	A list of all the listener ARNs
<a name="output_security_group_id"></a> security_group_id	The security group ID of the ALB

References

cloudposse/terraform-aws-components - Cloud Posse's upstream component

[!NOTE] This project is part of Cloud Posse's comprehensive "SweetOps" approach towards DevOps.
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Related Projects

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Cloud Posse Terraform Modules - Our collection of reusable Terraform modules used by our reference architectures.
Atmos - Atmos is like docker-compose but for your infrastructure

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This project is maintained by <a href="https://cpco.io/homepage?utm_source=github&utm_medium=readme&utm_campaign=cloudposse-terraform-components/aws-alb&utm_content=">Cloud Posse, LLC</a>. <a href="https://cpco.io/homepage?utm_source=github&utm_medium=readme&utm_campaign=cloudposse-terraform-components/aws-alb&utm_content="><img src="https://cloudposse.com/logo-300x69.svg" align="right" /></a>

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