chore: add small scenario to scaletest (#19110)

Relaxes the `terraform` version constraint to be at least 1.9, since
1.12 is installed in our Dogfood image

Adds a `small` scenario to keep costs down while we continue to develop
capabilities.

scaletest/terraform/action/.gitignore

@@ -0,0 +1 @@
+*.tfvars

scaletest/terraform/action/main.tf

@@ -16,7 +16,7 @@ terraform {
     }
 
     // We use the kubectl provider to apply Custom Resources.
-    // The kubernetes provider requires the CRD is already present 
+    // The kubernetes provider requires the CRD is already present
     // and would require a separate apply step beforehand.
     // https://github.com/hashicorp/terraform-provider-kubernetes/issues/1367
     kubectl = {
@@ -40,7 +40,7 @@ terraform {
     }
   }
 
-  required_version = "~> 1.9.0"
+  required_version = ">= 1.9.0"
 }
 
 provider "google" {

scaletest/terraform/action/scenarios.tf

@@ -35,5 +35,40 @@ locals {
         max_connections = 500
       }
     }
+    small = {
+      coder = {
+        nodepool_size = 3
+        machine_type  = "c2d-standard-8"
+        replicas      = 3
+        cpu_request   = "4000m"
+        mem_request   = "12Gi"
+        cpu_limit     = "4000m"
+        mem_limit     = "12Gi"
+      }
+      provisionerd = {
+        replicas    = 5
+        cpu_request = "100m"
+        mem_request = "256Mi"
+        cpu_limit   = "1000m"
+        mem_limit   = "1Gi"
+      }
+      workspaces = {
+        count_per_deployment = 10
+        nodepool_size        = 3
+        machine_type         = "c2d-standard-8"
+        cpu_request          = "100m"
+        mem_request          = "128Mi"
+        cpu_limit            = "100m"
+        mem_limit            = "128Mi"
+      }
+      misc = {
+        nodepool_size = 1
+        machine_type  = "c2d-standard-8"
+      }
+      cloudsql = {
+        tier            = "db-custom-2-7680"
+        max_connections = 100
+      }
+    }
   }
 }