Added Egress Outbound Variable & Updated Redis Family in Example (#90)

* added eggress

* updated example

* Updated README.md
Co-authored-by: actions-bot <58130806+actions-bot@users.noreply.github.com>

README.md

+<!-- markdownlint-disable -->
 # terraform-aws-elasticache-redis [![Latest Release](https://img.shields.io/github/release/cloudposse/terraform-aws-elasticache-redis.svg)](https://github.com/cloudposse/terraform-aws-elastic-beanstalk-environment/releases/latest) [![Slack Community](https://slack.cloudposse.com/badge.svg)](https://slack.cloudposse.com)
+<!-- markdownlint-restore -->
 
 [![README Header][readme_header_img]][readme_header_link]
 
@@ -185,6 +187,7 @@ Available targets:
 | 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. | <pre>object({<br>    enabled             = bool<br>    namespace           = string<br>    environment         = string<br>    stage               = string<br>    name                = string<br>    delimiter           = string<br>    attributes          = list(string)<br>    tags                = map(string)<br>    additional_tag_map  = map(string)<br>    regex_replace_chars = string<br>    label_order         = list(string)<br>    id_length_limit     = number<br>  })</pre> | <pre>{<br>  "additional_tag_map": {},<br>  "attributes": [],<br>  "delimiter": null,<br>  "enabled": true,<br>  "environment": null,<br>  "id_length_limit": null,<br>  "label_order": [],<br>  "name": null,<br>  "namespace": null,<br>  "regex_replace_chars": null,<br>  "stage": null,<br>  "tags": {}<br>}</pre> | no |
 | delimiter | Delimiter to be used between `namespace`, `environment`, `stage`, `name` and `attributes`.<br>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no |
 | dns\_subdomain | The subdomain to use for the CNAME record. If not provided then the CNAME record will use var.name. | `string` | `""` | no |
+| egress\_cidr\_blocks | Outbound traffic address | `list` | <pre>[<br>  "0.0.0.0/0"<br>]</pre> | no |
 | elasticache\_subnet\_group\_name | Subnet group name for the ElastiCache instance | `string` | `""` | no |
 | enabled | Set to false to prevent the module from creating any resources | `bool` | `null` | no |
 | engine\_version | Redis engine version | `string` | `"4.0.10"` | no |
@@ -356,8 +359,10 @@ Check out [our other projects][github], [follow us on twitter][twitter], [apply
 
 ### Contributors
 
+<!-- markdownlint-disable -->
 |  [![Erik Osterman][osterman_avatar]][osterman_homepage]<br/>[Erik Osterman][osterman_homepage] | [![Igor Rodionov][goruha_avatar]][goruha_homepage]<br/>[Igor Rodionov][goruha_homepage] | [![Andriy Knysh][aknysh_avatar]][aknysh_homepage]<br/>[Andriy Knysh][aknysh_homepage] | [![Daren Desjardins][darend_avatar]][darend_homepage]<br/>[Daren Desjardins][darend_homepage] | [![Max Moon][MoonMoon1919_avatar]][MoonMoon1919_homepage]<br/>[Max Moon][MoonMoon1919_homepage] | [![Christopher Riley][christopherriley_avatar]][christopherriley_homepage]<br/>[Christopher Riley][christopherriley_homepage] |
 |---|---|---|---|---|---|
+<!-- markdownlint-restore -->
 
   [osterman_homepage]: https://github.com/osterman
   [osterman_avatar]: https://img.cloudposse.com/150x150/https://github.com/osterman.png

docs/terraform.md

@@ -37,6 +37,7 @@
 | 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. | <pre>object({<br>    enabled             = bool<br>    namespace           = string<br>    environment         = string<br>    stage               = string<br>    name                = string<br>    delimiter           = string<br>    attributes          = list(string)<br>    tags                = map(string)<br>    additional_tag_map  = map(string)<br>    regex_replace_chars = string<br>    label_order         = list(string)<br>    id_length_limit     = number<br>  })</pre> | <pre>{<br>  "additional_tag_map": {},<br>  "attributes": [],<br>  "delimiter": null,<br>  "enabled": true,<br>  "environment": null,<br>  "id_length_limit": null,<br>  "label_order": [],<br>  "name": null,<br>  "namespace": null,<br>  "regex_replace_chars": null,<br>  "stage": null,<br>  "tags": {}<br>}</pre> | no |
 | delimiter | Delimiter to be used between `namespace`, `environment`, `stage`, `name` and `attributes`.<br>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no |
 | dns\_subdomain | The subdomain to use for the CNAME record. If not provided then the CNAME record will use var.name. | `string` | `""` | no |
+| egress\_cidr\_blocks | Outbound traffic address | `list` | <pre>[<br>  "0.0.0.0/0"<br>]</pre> | no |
 | elasticache\_subnet\_group\_name | Subnet group name for the ElastiCache instance | `string` | `""` | no |
 | enabled | Set to false to prevent the module from creating any resources | `bool` | `null` | no |
 | engine\_version | Redis engine version | `string` | `"4.0.10"` | no |

examples/complete/fixtures.us-east-2.tfvars

@@ -14,9 +14,9 @@ instance_type = "cache.t2.micro"
 
 cluster_size = 1
 
-family = "redis4.0"
+family = "redis6.x"
 
-engine_version = "4.0.10"
+engine_version = "6.x"
 
 at_rest_encryption_enabled = false
 

main.tf

@@ -10,11 +10,11 @@ resource "aws_security_group" "default" {
 
 resource "aws_security_group_rule" "egress" {
   count             = module.this.enabled && var.use_existing_security_groups == false ? 1 : 0
-  description       = "Allow all egress traffic"
+  description       = "Allow outbound traffic from existing cidr blocks"
   from_port         = 0
   to_port           = 0
   protocol          = "-1"
-  cidr_blocks       = ["0.0.0.0/0"]
+  cidr_blocks       = var.egress_cidr_blocks
   security_group_id = join("", aws_security_group.default.*.id)
   type              = "egress"
 }

variables.tf

@@ -210,3 +210,9 @@ variable "cloudwatch_metric_alarms_enabled" {
   description = "Boolean flag to enable/disable CloudWatch metrics alarms"
   default     = false
 }
+
+variable egress_cidr_blocks {
+  type        = list
+  default     = ["0.0.0.0/0"]
+  description = "Outbound traffic address"
+}