fix: Add create_tfvars script and update pipeline configuration

gcloud/tf/scripts/build-gcloud-k3s-pipeline.json

@@ -17,6 +17,15 @@
         "retryCount": 0,
         "shouldAbort": true
     },
+    {
+        "name": "create tfvars",
+        "function": "RunCommand",
+        "params": [
+            "./gcloud/tf/scripts/create_tfvars.sh"
+        ],
+        "retryCount": 0,
+        "shouldAbort": true
+    },
     {
         "name": "run tofu",
         "function": "RunCommand",

gcloud/tf/scripts/create_tfvars.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+set -a
+
+# read environment variables from .env file
+# for value $PROJECT_NAME
+. .env
+
+
+# Check if PROJECT_NAME environment variable is set
+if [ -z "$PROJECT_NAME" ]; then
+  echo "Error: PROJECT_NAME environment variable is not set."
+  echo "Please set the PROJECT_NAME variable and try again."
+  exit 1
+fi
+
+# Get the directory where the script is located
+SCRIPT_DIR="$(dirname "$(readlink -f "$0")")"
+cd "$SCRIPT_DIR" || { echo "Failed to change directory to $SCRIPT_DIR"; exit 1; }
+# Define the template file path and output file path
+TEMPLATE_FILE="../terraform.tfvars.template"
+OUTPUT_FILE="../terraform.tfvars"
+
+
+# Use envsubst to substitute the PROJECT_NAME variable into the template
+envsubst < "$TEMPLATE_FILE" > "$OUTPUT_FILE"
+if [ $? -ne 0 ]; then
+  echo "Error: Failed to substitute variables in the template."
+  exit 1
+fi
+
+echo "tfvars has been created at $OUTPUT_FILE"

gcloud/tf/terraform.tfvars.template

@@ -0,0 +1,13 @@
+// Your GCP project name
+// it will be refererred as the project id
+// in Google Cloud
+// ----------------------------------
+project_name = "${PROJECT_NAME}"
+
+// where to deploy to
+// region
+region = "us-central1"
+zone   = "us-central1-a"
+
+// application name
+app_name = "${PROJECT_NAME}-k3s-cluster"