Add health check for target instances

Add health check for target instances

_alb.tf

@@ -14,6 +14,14 @@ resource "aws_lb_target_group" "lb_target" {
   port     = 80
   protocol = "HTTP"
   vpc_id   = "${aws_vpc.vpc.id}"
+
+  health_check = {
+    interval = 6
+    timeout  = 5
+    path     = "${var.health-check-path}"
+    port     = "${var.health-check-port}"
+    matcher  = "200-299"
+  }
 }
 
 resource "aws_lb_listener" "lb_listener" {

_sg.tf

@@ -11,16 +11,16 @@ resource "aws_security_group" "sg" {
   }
 
   ingress {
-    protocol    = "tcp"
-    from_port   = "80"
-    to_port     = "80"
+    protocol        = "tcp"
+    from_port       = "80"
+    to_port         = "80"
     security_groups = ["${aws_security_group.sg_alb.id}"]
   }
 
   ingress {
-    protocol    = "tcp"
-    from_port   = "443"
-    to_port     = "443"
+    protocol        = "tcp"
+    from_port       = "443"
+    to_port         = "443"
     security_groups = ["${aws_security_group.sg_alb.id}"]
   }
 

_variables.tf

@@ -168,4 +168,16 @@ variable "ssh-allowed-ips" {
   description = "The list of IPs that are allowed to SSH into the instances"
   type        = "list"
   default     = []
-}
+}
+
+variable "health-check-path" {
+  description = "The apps public sub domain name"
+  type        = "string"
+  default     = "/"
+}
+
+variable "health-check-port" {
+  description = "The apps public sub domain name"
+  type        = "string"
+  default     = "80"
+}

examples/engagement-app/main.tf

@@ -1,11 +1,11 @@
 module "asg" {
-  source  = "../../"
+  source = "../../"
 
   aws-profile                  = "ds-web-products-staging"
-  aws-region                   = "eu-west-3" 
-  instance-ami                 = "ami-0dd7e7ed60da8fb83"  
-  user-data-script             = "./user-data.sh" 
-  asg-min-size                 = "2"                      
+  aws-region                   = "eu-west-3"
+  instance-ami                 = "ami-0dd7e7ed60da8fb83"
+  user-data-script             = "./user-data.sh"
+  asg-min-size                 = "2"
   asg-max-size                 = "4"
   asg-def-size                 = "2"
   alb-name                     = "rafa-ian-alb"
@@ -15,5 +15,5 @@ module "asg" {
   launch-config-name           = "rafa-ian-lc"
   instance-associate-public-ip = "true"
   iam-role-name                = "engage-ECR-read"
-  ssh-allowed-ips              = ["62.255.97.196/32", "62.255.97.197/32"]
+  ssh-allowed-ips              = ["62.255.97.196/32", "62.6.58.84/32"]
 }