First pass at setting up GCP deploy config as infrastructure

- Terraform config files to setup cluster, deployments and services
  - Adds only Searxng deployment and test service in this commit

- Makefile to:
  - Build and push images
  - Run terraform with correct project configuration

- Env file template to help setting .env file with project configs

deploy/gcp/main.tf

@@ -0,0 +1,133 @@
+terraform {
+  required_providers {
+    google = {
+      source = "hashicorp/google"
+      version = "5.28.0"
+    }
+    kubernetes = {
+      source = "hashicorp/kubernetes"
+    }
+  }
+}
+
+provider "google" {
+  credentials = file(var.key_file)
+  project     = var.project_id
+  region      = var.region
+}
+
+data "google_client_config" "default" {
+  depends_on = [module.gke-cluster]
+}
+
+# Defer reading the cluster data until the GKE cluster exists.
+data "google_container_cluster" "default" {
+  name       = var.cluster_name
+  depends_on = [module.gke-cluster]
+  location   = var.region
+}
+
+provider "kubernetes" {
+  host  = "https://${data.google_container_cluster.default.endpoint}"
+  token = data.google_client_config.default.access_token
+  cluster_ca_certificate = base64decode(
+    data.google_container_cluster.default.master_auth[0].cluster_ca_certificate,
+  )
+}
+
+resource "kubernetes_deployment" "searxng" {
+  metadata {
+    name = "searxng"
+    labels = {
+      app = "searxng"
+    }
+  }
+  spec {
+    replicas = 1
+    selector {
+      match_labels = {
+        component = "searxng"
+      }
+    }
+    template {
+      metadata {
+        labels = {
+          component = "searxng"
+        }
+      }
+      spec {
+        container {
+          image = var.search_image
+          name = "searxng-container"
+          port {
+            container_port = 8080
+          }
+        }
+      }
+    }
+  }
+}
+
+resource "kubernetes_service" "searxng_service" {
+  metadata {
+    name      = "searxng-service"
+    namespace = "default"
+  }
+
+  spec {
+    selector = {
+      component = "searxng"
+    }
+
+    port {
+      port        = 8080
+      target_port = 8080
+    }
+
+    type = "LoadBalancer"
+  }
+}
+
+variable "project_id" {
+  description = "The ID of the project in which the resources will be deployed."
+  type        = string
+}
+
+variable "key_file" {
+  description = "The path to the GCP service account key file."
+  type        = string
+}
+
+variable "region" {
+  description = "The GCP region to deploy to."
+  type        = string
+}
+
+variable "cluster_name" {
+  description = "The GCP region to deploy to."
+  type        = string
+}
+
+variable "search_image" {
+  description = "Tag for the searxng image"
+  type        = string
+}
+
+variable "backed_image" {
+  description = "Tag for the Perplexica backend image"
+  type        = string
+}
+
+variable "app_image" {
+  description = "Tag for the app image"
+  type        = string
+}
+
+module "gke-cluster" {
+  source       = "./gke-cluster"
+
+  project_id = var.project_id
+  name       = var.cluster_name
+  region     = var.region
+  key_file   = var.key_file
+}