Terraform module to create an ALB, default ALB listener(s), and a default ALB target and related security groups.
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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!
IMPORTANT: The master branch is used in source just as an example. In your code, do not pin to master because there may be breaking changes between releases.
Instead pin to the release tag (e.g. ?ref=tags/x.y.z) of one of our latest releases.
For a complete example, see examples/complete.
For automated test of the complete example using bats and Terratest, see test.
provider "aws" {
region = var.region
}
module "vpc" {
source = "git::https://github.com/cloudposse/terraform-aws-vpc.git?ref=tags/0.8.1"
namespace = var.namespace
stage = var.stage
name = var.name
delimiter = var.delimiter
attributes = var.attributes
cidr_block = var.vpc_cidr_block
tags = var.tags
}
module "subnets" {
source = "git::https://github.com/cloudposse/terraform-aws-dynamic-subnets.git?ref=tags/0.16.1"
availability_zones = var.availability_zones
namespace = var.namespace
stage = var.stage
name = var.name
attributes = var.attributes
delimiter = var.delimiter
vpc_id = module.vpc.vpc_id
igw_id = module.vpc.igw_id
cidr_block = module.vpc.vpc_cidr_block
nat_gateway_enabled = false
nat_instance_enabled = false
tags = var.tags
}
module "alb" {
source = "git::https://github.com/cloudposse/terraform-aws-alb.git?ref=master"
namespace = var.namespace
stage = var.stage
name = var.name
attributes = var.attributes
delimiter = var.delimiter
vpc_id = module.vpc.vpc_id
security_group_ids = [module.vpc.vpc_default_security_group_id]
subnet_ids = module.subnets.public_subnet_ids
internal = var.internal
http_enabled = var.http_enabled
http_redirect = var.http_redirect
access_logs_enabled = var.access_logs_enabled
alb_access_logs_s3_bucket_force_destroy = var.alb_access_logs_s3_bucket_force_destroy
access_logs_region = var.access_logs_region
cross_zone_load_balancing_enabled = var.cross_zone_load_balancing_enabled
http2_enabled = var.http2_enabled
idle_timeout = var.idle_timeout
ip_address_type = var.ip_address_type
deletion_protection_enabled = var.deletion_protection_enabled
deregistration_delay = var.deregistration_delay
health_check_path = var.health_check_path
health_check_timeout = var.health_check_timeout
health_check_healthy_threshold = var.health_check_healthy_threshold
health_check_unhealthy_threshold = var.health_check_unhealthy_threshold
health_check_interval = var.health_check_interval
health_check_matcher = var.health_check_matcher
target_group_port = var.target_group_port
target_group_target_type = var.target_group_target_type
stickiness = var.stickiness
tags = var.tags
}Available targets:
help Help screen
help/all Display help for all targets
help/short This help short screen
lint Lint terraform code
| Name | Version |
|---|---|
| terraform | >= 0.12.0 |
| aws | >= 2.0 |
| local | >= 1.3 |
| null | >= 2.0 |
| template | >= 2.0 |
| Name | Version |
|---|---|
| aws | >= 2.0 |
| Name | Description | Type | Default | Required |
|---|---|---|---|---|
| access_logs_enabled | A boolean flag to enable/disable access_logs | bool |
true |
no |
| access_logs_prefix | The S3 log bucket prefix | string |
"" |
no |
| access_logs_region | The region for the access_logs S3 bucket | string |
"us-east-1" |
no |
| additional_tag_map | Additional tags for appending to tags_as_list_of_maps. Not added to tags. |
map(string) |
{} |
no |
| 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 |
| attributes | Additional attributes (e.g. 1) |
list(string) |
[] |
no |
| certificate_arn | The ARN of the default SSL certificate for HTTPS listener | 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. |
object({ |
{ |
no |
| cross_zone_load_balancing_enabled | A boolean flag to enable/disable cross zone load balancing | bool |
true |
no |
| deletion_protection_enabled | A boolean flag to enable/disable deletion protection for ALB | bool |
false |
no |
| delimiter | Delimiter to be used between namespace, environment, stage, name and attributes.Defaults to - (hyphen). Set to "" to use no delimiter at all. |
string |
null |
no |
| deregistration_delay | The amount of time to wait in seconds before changing the state of a deregistering target to unused | number |
15 |
no |
| enable_glacier_transition | Enables the transition of lb logs to AWS Glacier | bool |
true |
no |
| enabled | Set to false to prevent the module from creating any resources | bool |
null |
no |
| environment | Environment, e.g. 'uw2', 'us-west-2', OR 'prod', 'staging', 'dev', 'UAT' | string |
null |
no |
| expiration_days | Number of days after which to expunge s3 logs | number |
90 |
no |
| glacier_transition_days | Number of days after which to move s3 logs to the glacier storage tier | number |
60 |
no |
| health_check_healthy_threshold | The number of consecutive health checks successes required before considering an unhealthy target healthy | number |
2 |
no |
| health_check_interval | The duration in seconds in between health checks | number |
15 |
no |
| health_check_matcher | The HTTP response codes to indicate a healthy check | string |
"200-399" |
no |
| health_check_path | The destination for the health check request | string |
"/" |
no |
| health_check_timeout | The amount of time to wait in seconds before failing a health check request | number |
10 |
no |
| health_check_unhealthy_threshold | The number of consecutive health check failures required before considering the target unhealthy | number |
2 |
no |
| http2_enabled | A boolean flag to enable/disable HTTP/2 | bool |
true |
no |
| http_enabled | A boolean flag to enable/disable HTTP listener | bool |
true |
no |
| http_ingress_cidr_blocks | List of CIDR blocks to allow in HTTP security group | list(string) |
[ |
no |
| http_ingress_prefix_list_ids | List of prefix list IDs for allowing access to HTTP ingress security group | list(string) |
[] |
no |
| http_port | The port for the HTTP listener | number |
80 |
no |
| http_redirect | A boolean flag to enable/disable HTTP redirect to HTTPS | bool |
false |
no |
| https_enabled | A boolean flag to enable/disable HTTPS listener | bool |
false |
no |
| https_ingress_cidr_blocks | List of CIDR blocks to allow in HTTPS security group | list(string) |
[ |
no |
| https_ingress_prefix_list_ids | List of prefix list IDs for allowing access to HTTPS ingress security group | list(string) |
[] |
no |
| https_port | The port for the HTTPS listener | number |
443 |
no |
| https_ssl_policy | The name of the SSL Policy for the listener | string |
"ELBSecurityPolicy-2015-05" |
no |
| id_length_limit | Limit id to this many characters.Set to 0 for unlimited length.Set to null for default, which is 0.Does not affect id_full. |
number |
null |
no |
| idle_timeout | The time in seconds that the connection is allowed to be idle | number |
60 |
no |
| internal | A boolean flag to determine whether the ALB should be internal | bool |
false |
no |
| 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 |
| label_order | The naming order of the id output and Name tag. Defaults to ["namespace", "environment", "stage", "name", "attributes"]. You can omit any of the 5 elements, but at least one must be present. |
list(string) |
null |
no |
| lifecycle_rule_enabled | A boolean that indicates whether the s3 log bucket lifecycle rule should be enabled. | bool |
false |
no |
| name | Solution name, e.g. 'app' or 'jenkins' | string |
null |
no |
| namespace | Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp' | string |
null |
no |
| noncurrent_version_expiration_days | Specifies when noncurrent s3 log versions expire | number |
90 |
no |
| noncurrent_version_transition_days | Specifies when noncurrent s3 log versions transition | number |
30 |
no |
| regex_replace_chars | Regex to replace chars with empty string in namespace, environment, stage and name.If not set, "/[^a-zA-Z0-9-]/" is used to remove all characters other than hyphens, letters and digits. |
string |
null |
no |
| security_group_ids | A list of additional security group IDs to allow access to ALB | list(string) |
[] |
no |
| stage | Stage, e.g. 'prod', 'staging', 'dev', OR 'source', 'build', 'test', 'deploy', 'release' | string |
null |
no |
| standard_transition_days | Number of days to persist logs in standard storage tier before moving to the infrequent access tier | number |
30 |
no |
| stickiness | Target group sticky configuration | object({ |
null |
no |
| subnet_ids | A list of subnet IDs to associate with ALB | list(string) |
n/a | yes |
| tags | Additional tags (e.g. map('BusinessUnit','XYZ') |
map(string) |
{} |
no |
| target_group_additional_tags | The additional tags to apply to the target group | map(string) |
{} |
no |
| target_group_name | The name for the default target group, uses a module label name if left empty | string |
"" |
no |
| target_group_port | The port for the default target group | number |
80 |
no |
| target_group_protocol | The protocol for the default target group HTTP or HTTPS | string |
"HTTP" |
no |
| target_group_target_type | The type (instance, ip or lambda) of targets that can be registered with the target group |
string |
"ip" |
no |
| vpc_id | VPC ID to associate with ALB | string |
n/a | yes |
| Name | Description |
|---|---|
| access_logs_bucket_id | The S3 bucket ID for access logs |
| alb_arn | The ARN of the ALB |
| alb_arn_suffix | The ARN suffix of the ALB |
| alb_dns_name | DNS name of ALB |
| alb_name | The ARN suffix of the ALB |
| alb_zone_id | The ID of the zone which ALB is provisioned |
| default_target_group_arn | The default target group ARN |
| http_listener_arn | The ARN of the HTTP forwarding listener |
| http_redirect_listener_arn | The ARN of the HTTP to HTTPS redirect listener |
| https_listener_arn | The ARN of the HTTPS listener |
| listener_arns | A list of all the listener ARNs |
| security_group_id | The security group ID of the ALB |
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Check out these related projects.
- terraform-aws-alb-ingress - Terraform module to provision an HTTP style ingress rule based on hostname and path for an ALB
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