Zero Downtime and Highly Available deployment infrastructure using Terraform and EC2.
/* -----------------------------------------------------------
* Configure Gambit High Available Infrastructure
* ----------------------------------------------------------- */
module "aws-ec2-ha" {
source = "[email protected]:miere/terraform-ha-ec2.git"
aws_region = "${var.aws_region}"
aws_vpc_id = "${var.aws_vpc_id}"
aws_instances_subnet_ids = "${data.aws_subnet_ids.private.ids}"
aws_lb_subnet_ids = "${data.aws_subnet_ids.public.ids}"
aws_lb_health_check_url = "/health"
aws_lb_health_check_type = "ELB"
aws_lb_health_check_grace_period = "60"
aws_hosted_domain = "${var.aws_hosted_domain}"
dns_entry = "${var.name}"
environment = "${var.environment}"
}| Name | Description | Type | Default | Required |
|---|---|---|---|---|
| aws_asg_instances_desired | Desired number of instances on the ASG. | string | "2" |
no |
| aws_asg_instances_max | Maximum number of instances on the ASG. | string | "3" |
no |
| aws_asg_instances_min | Minimum number of instances on the ASG. | string | "2" |
no |
| aws_deployment_config | AWS CodeDeploy deployment config. Default: CodeDeployDefault.OneAtATime | string | "CodeDeployDefault.OneAtATime" |
no |
| aws_deployment_group | AWS CodeDeploy deployment group. Default: default | string | "default" |
no |
| aws_hosted_domain | AWS Route 53 hosted zone domain. e.g. my.domain.com | string | n/a | yes |
| aws_instance_type | AWS EC2 instance type that will be used to spin up the service. Default: t3.nano | string | "t3.nano" |
no |
| aws_instance_web_port | Define which port should be mapped from the ALB to target instance. | string | "8080" |
no |
| aws_instance_web_protocol | Define which protocol should be mapped from the ALB to target instance. | string | "HTTP" |
no |
| aws_instances_subnet_ids | AWS Subnet IDs in which your instances will be placed on. | list | n/a | yes |
| aws_lb_deregistration_delay | The delay expected during the draining phase to leverage a graceful shutdown for deregistered machines | string | "60" |
no |
| aws_lb_health_check_grace_period | Grace period before the instance being checked. | string | "30" |
no |
| aws_lb_health_check_type | Define how AWS should check if instances are healthy or not. | string | "ELB" |
no |
| aws_lb_health_check_url | Define which URL ALB should probe to ensure the instances are healthy. | string | "/health-check" |
no |
| aws_lb_subnet_ids | AWS Subnet IDs in which your load balancer will be placed on. | list | n/a | yes |
| aws_region | AWS region in which the artifact will be deployed to. It will be used by S3 and Code Deploy. | string | n/a | yes |
| aws_vpc_id | AWS VPC ID in which your services will be deployed to. | string | n/a | yes |
| custom_script | The custom script path. This script, if defined, will be run every time an instance is spin up. | string | "-" |
no |
| dns_entry | The Register A DNS entry that will be created for your service. It will be used as suffix for your 'aws_hosted_domain' | string | n/a | yes |
| environment | An environment deployment identifier. | string | "" |
no |
| name | Optional name that will be used as suffix for every AWS resource created by this script. | string | "" |
no |
| Name | Description |
|---|---|
| aws_ami_name | The AMI used by this deployment |
| aws_asg_arn | The Auto Scaling Group arn created for this application |
| aws_iam_role_arn | The IAM Role ARN created for this application |
| aws_iam_role_name | The IAM Role Name created for this application |
| aws_route53_record | The Route53 record that was created for this application |