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AWS - EC2

Provision an EC2 instance, alb, and create an autostopping rule for the instance.

image

Setup

  1. Copy terraform.tfvars.example to terraform.tfvars and fill in your inputs
  2. Configure AWS authentication for Terraform
  3. Configure Harness authentication for Terraform a. HARNESS_ACCOUNT_ID: your Harness account id b. HARNESS_PLATFORM_API_KEY: an api key for your Harness account, with CCM admin permissions
  4. Run tofu plan and tofu apply to create the application a. Provision an ec2 machine with nginx insalled b. Provision an ALB and create a rule for routing to the VM c. Create a Harness Lb with the ALB (import) d. Create an AutoStopping Rule for the VM
  5. Once the TF completes, you will need to modify the rule in the Harness UI to link your rule to the route53 record.

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Patterns

http

create an ec2, alb, and autostopping rule using http and the default alb dns name:

region = "us-west-2"

# common networking
vpc = "vpc-02767cb7b8b634d54"

# ec2 instance
ec2_subnet = "subnet-022b0cf63cfa2b43e"

# alb
alb_subnets = ["subnet-0afa8a1877a19c619", "subnet-08515090d18fe4e56"]

#harness
harness_cloud_connector_id = "harness_impeng_play_ccm"

to use a custom domain, simple pass your route53 hosted zone id:

hostedzone = "Z00081583ARZJ9LTKZHRI"

https

create an ec2, alb, and autostopping rule using http and https using a custom domain:

region = "us-west-2"

# common networking
vpc = "vpc-02767cb7b8b634d54"

# ec2 instance
ec2_subnet = "subnet-022b0cf63cfa2b43e"

# alb
alb_subnets = ["subnet-0afa8a1877a19c619", "subnet-08515090d18fe4e56"]

# https information
alb_certificate_arn = "arn:aws:acm:us-west-2:664418987337:certificate/bfb75fd2-a1d5-4de4-ab86-b2bc36983097"
alb_route53_dns_name = "asec2albtest.isehrns.rileysnyder.dev"

#harness
harness_cloud_connector_id = "harness_impeng_play_ccm"

This requires that you have a certificate already created for the alb_route53_dns_name domain in your account

Requirements

Name Version
aws ~> 5.0
harness 0.37.1

Providers

Name Version
aws 5.94.1
harness 0.37.1
random 3.7.1

Modules

No modules.

Resources

Name Type
aws_instance.ec2 resource
aws_lb.alb resource
aws_lb_listener.ec2 resource
aws_lb_listener_rule.static resource
aws_lb_target_group.http resource
aws_lb_target_group_attachment.ec2 resource
aws_route53_record.alb resource
aws_security_group.allow_http resource
aws_security_group.http resource
harness_autostopping_aws_alb.harness_alb resource
harness_autostopping_rule_vm.rule resource
random_pet.name resource
aws_route53_zone.zone data source
harness_platform_current_account.current data source

Inputs

Name Description Type Default Required
alb_arn An existing ALB arn to use. If not set one will be created for you string null no
alb_subnets Subnet to place ALB in. Should be routable so you can access the application list(string) n/a yes
ami Ubuntu ami (default is for us-west-2) string "ami-0efcece6bed30fd98" no
ec2_subnet Subnet to place EC2 in string n/a yes
harness_cloud_connector_id n/a string "AWS CCM connector for target AWS account" no
hostedzone Hosted zone id to use for application routing. If not set will use default ALB url string null no
name A unique key to use for all resource. If not set a random name is generated string null no
region AWS region to deploy resources in string "us-west-2" no
vpc ID of existing VPC string n/a yes

Outputs

Name Description
ec2 ARN of the ec2 instance
name Name of the ec2 instance
rule Link to autostopping rule in Harness
url URL for the application