[services] Change 'run.sh' to 'terraform-init.sh' and add terraform file exist checks

Summary: This renames the run script in remote to terraform-init, removes the terraform apply, and just prepares the environment for further terraform commands.

Test Plan: Ran the scripts. Working properly

Reviewers: bartek, varun

Reviewed By: bartek

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D10702

Author: wyilio

services/terraform/modules/shared/search_index_lambda.tf

@@ -8,6 +8,13 @@ variable "lambda_zip_dir" {
   default = "../../search-index-lambda/target/lambda/search-index-lambda"
 }
 
+check "lambda_zip_check" {
+  assert {
+    condition     = fileexists("${var.lambda_zip_dir}/bootstrap.zip")
+    error_message = "Lambda boostrap.zip not found at path. Please run 'terraform-init.sh' in remote or 'run.sh' in dev"
+  }
+}
+
 resource "aws_lambda_function" "search_index_lambda" {
   function_name    = "search-index-lambda-function"
   filename         = "${var.lambda_zip_dir}/bootstrap.zip"

services/terraform/remote/run.sh renamed to services/terraform/remote/terraform-init.sh

@@ -7,4 +7,3 @@ cargo lambda build --arm64 --output-format zip --release
 
 cd ../terraform/remote
 terraform init
-terraform apply