Loadbalancer.md

Loadbalancer setup

All VM is required to be in an Instance Group to connect to a load balancer

An instance group can be a backend for a load balancer. To connect ports within an instance,

we should do -1. create named ports for an Instance Group. When you use compute-instance-disaster-recovery or disaster-recovery module, please put the block below.

 named_ports = [
    {
      name = "https"   # load-balancer will lookup this name
      port = 443
    }
  ]

-2. create load-balancer backends for the Instance Group. Put the name of the module you like to connect with the load-balancer. The module must be located under the same directory to resolve the name. example. 'module.NAME-OF-THE-MODULE.instance_group'

You also need HTTPS certificate in your project to be referenced by load-balancer module

  source = "./load-balancer"

  project = var.project
  .
  .
  .
     
  # You should upload your certificate to Google Console First
  certificate_name = ["cert-name-in-your-project"]

  instance_group = module.NAME-OF-YOUR-MODULE.instance_group

If you like to set up load balancer with Google Console, please visit the link. Please, click for more information

How to build a load balancer

-1. Create an Instance Group for a VM with disater-recovery or unmanaged-instance-group-to-vm module.

These two module output named ports

-2. Create a Load-balancer with load-balancer module. (An example is provided under examples folder)

load-balancer module picks up named ports from the above.