TerraformFargateSeleniumGrid

This project provides terraform code to deploy an autoscaling selenium grid running on AWS Fargate platform inside AWS VPC.

Prereqs

Tools

• aws cli installed
• aws cli credentials configured
• terraform cli >= 1.0

Existing resources

• AWS VPC
• S3 bucket (for storing the terraform state)

Update terraform/terraform.tfvars

state_s3_bucket = ""
app_name = ""
vpc_id = ""
subnet_ids_nodes = ["",""]
subnet_ids_hub = ["",""]
subnet_ids_elb = ["",""]

Deploy

Open a terminal, enter the root of this repo and execute:

# initialise  
terraform -chdir=terraform init -backend-config="key=selenium_grid_state"

# see what resources are going to be added/removed/changed, before taking action
terraform -chdir=terraform plan

# deploy the resources
terraform -chdir=terraform apply -refresh=true 

Note the outputs

Outputs:

selenium_grid_console_url = "http://internal-selenium-1111111111.us-east-1.elb.amazonaws.com/grid/console"
selenium_grid_test_url = "http://internal-selenium-blog-1111111111.us-east-1.elb.amazonaws.com/wd/hub"

Test

There is a simple test in smashtest\main.smash

selenium_grid_test_url is one of the outputs from the terraform apply command in the Deploy section

To run the test, open a terminal, change to the smashtest\ directory and run:

npm install smashtest

npx smashtest --test-server=[selenium_grid_test_url] --max-parallel=6

Clean up

To remove the deployed resources :

terraform -chdir=terraform destroy