Working Instance creation.

main.tf

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+terraform {
+  required_providers {
+    google = {
+      source  = "hashicorp/google"
+      version = "6.27.0"
+    }
+  }
+}
+
+provider "google" {
+  # Configuration options
+  project = "network-getting-started"
+  region  = "europe-central2"
+  zone    = "europe-central2-b"
+}
+
+data "google_project" "project" {
+  project_id = "network-getting-started"
+}
+
+resource "google_compute_instance" "vm_1" {
+  name         = "tftest-vm"
+  machine_type = "e2-micro"
+  can_ip_forward = false
+  description    = "Terraform test instance"
+
+  boot_disk {
+    initialize_params {
+      image = "debian-cloud/debian-12"
+    }
+  }
+
+  network_interface {
+    network    = "dom-lab-vpc"
+    subnetwork = "pl-hub"
+  }
+
+  metadata = {
+    ssh-keys = "${var.ssh[0].public_key} ${var.ssh[0].ssh_user}"
+  }
+}

variables.tf

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+variable "ssh" {
+  description = "SSH Key(s) definition"
+  type = list(object({
+    public_key = string
+    ssh_user   = string
+  }))
+}