Add working example (#17)

* Add working example

* fix regression

* Link to example

* fix formatting

README.md

@@ -55,6 +55,10 @@ module "example_redis" {
 
 
 
+## Examples
+
+Review the [complete example](examples/simple) to see how to use this module.
+
 
 
 ## Makefile Targets
@@ -88,7 +92,7 @@ Available targets:
 | maintenance_window | Maintenance window | string | `wed:03:00-wed:04:00` | no |
 | name | Name | string | `redis` | no |
 | namespace | Namespace | string | `global` | no |
-| notification_topic_arn | Notification topic arn | string | `10000000` | no |
+| notification_topic_arn | Notification topic arn | string | `` | no |
 | port | Redis port | string | `6379` | no |
 | security_groups | AWS security group ids | list | `<list>` | no |
 | stage | Stage | string | `default` | no |

README.yaml

@@ -60,6 +60,8 @@ usage: |-
   }
   ```
 
+examples: |-
+  Review the [complete example](examples/simple) to see how to use this module.
 
 include:
   - "docs/targets.md"

docs/terraform.md

@@ -20,7 +20,7 @@
 | maintenance_window | Maintenance window | string | `wed:03:00-wed:04:00` | no |
 | name | Name | string | `redis` | no |
 | namespace | Namespace | string | `global` | no |
-| notification_topic_arn | Notification topic arn | string | `10000000` | no |
+| notification_topic_arn | Notification topic arn | string | `` | no |
 | port | Redis port | string | `6379` | no |
 | security_groups | AWS security group ids | list | `<list>` | no |
 | stage | Stage | string | `default` | no |

examples/simple/main.tf

+terraform {
+  required_version = ">= 0.11.2"
+
+  backend "s3" {}
+}
+
+variable "aws_assume_role_arn" {}
+
+provider "aws" {
+  assume_role {
+    role_arn = "${var.aws_assume_role_arn}"
+  }
+}
+
+variable "namespace" {}
+
+variable "name" {}
+
+variable "stage" {}
+
+variable "region" {}
+
+variable "availability_zones" {
+  type = "list"
+}
+
+variable "zone_id" {}
+
+module "vpc" {
+  source    = "git::https://github.com/cloudposse/terraform-aws-vpc.git?ref=tags/0.3.3"
+  namespace = "${var.namespace}"
+  stage     = "${var.stage}"
+  name      = "${var.name}"
+}
+
+module "subnets" {
+  source             = "git::https://github.com/cloudposse/terraform-aws-dynamic-subnets.git?ref=tags/0.3.5"
+  namespace          = "${var.namespace}"
+  stage              = "${var.stage}"
+  name               = "${var.name}"
+  region             = "${var.region}"
+  availability_zones = "${var.availability_zones}"
+  vpc_id             = "${module.vpc.vpc_id}"
+  igw_id             = "${module.vpc.igw_id}"
+  cidr_block         = "10.0.0.0/16"
+}
+
+module "redis" {
+  source             = "../../"
+  namespace          = "${var.namespace}"
+  stage              = "${var.stage}"
+  name               = "${var.name}"
+  zone_id            = "${var.zone_id}"
+  vpc_id             = "${module.vpc.vpc_id}"
+  subnets            = "${module.subnets.private_subnet_ids}"
+  maintenance_window = "wed:03:00-wed:04:00"
+  cluster_size       = "2"
+  instance_type      = "cache.t2.micro"
+  apply_immediately  = "true"
+  availability_zones = "${var.availability_zones}"
+  automatic_failover = "false"
+
+  engine_version               = "4.0.10"
+  family                       = "redis4.0"
+  port                         = "6379"
+  alarm_cpu_threshold_percent  = "75"
+  alarm_memory_threshold_bytes = "10000000"
+  at_rest_encryption_enabled   = "true"
+}

examples/simple/terraform.tfvars

+namespace = "eg"
+name = "redis"
+stage = "testing"
+zone_id = "Z3SO0TKDDQ0RGG"
+region = "us-west-2"
+availability_zones = ["us-west-2a", "us-west-2b"]

variables.tf

@@ -76,7 +76,7 @@ variable "transit_encryption_enabled" {
 }
 
 variable "notification_topic_arn" {
-  default     = "10000000"
+  default     = ""
   description = "Notification topic arn"
 }