terraform {
  required_providers {
    kubernetes = {
      source  = "hashicorp/kubernetes"
      version = "~> 2.26"
    }
  }

  backend "consul" {
    address = "consul:8500"
    path    = "terraform/states/cloudmon"
  }  
}

variable "app_version" {
  type    = string
  default = "latest"
}

provider "kubernetes" {
  config_path = "./kind_kubeconfig"
  host        = "https://local-k3s-platform:6443"
  insecure    = true
}

# 1. DAS DASHBOARD DEPLOYMENT
resource "kubernetes_deployment_v1" "cloudmon" {
  metadata {
    name      = "cloudmon"
    namespace = "default"
    labels = { app = "cloudmon" }
  }
  spec {
    replicas = 1
    selector { match_labels = { app = "cloudmon" } }
    template {
      metadata { labels = { app = "cloudmon" } }
      spec {
        container {
          name              = "dashboard"
          image             = "registry.local/bast/cloudmon:${var.app_version}"
          image_pull_policy = "Always"
          port { container_port = 8000 }
        }
      }
    }
  }
}

# 2. DER KUBERNETES SERVICE (Port 8000 intern freischalten)
resource "kubernetes_service_v1" "cloudmon_service" {
  metadata {
    name      = "cloudmon-service"
    namespace = "default"
  }
  spec {
    selector = { app = "cloudmon" }
    port {
      port        = 80
      target_port = 8000
    }
  }
}

# 3. DAS INGRESS ROUTING (Macht cloudmon unter cloudmon.local über Port 8080 erreichbar!)
resource "kubernetes_ingress_v1" "cloudmon_ingress" {
  metadata {
    name      = "cloudmon-ingress"
    namespace = "default"
    annotations = { "kubernetes.io/ingress.class" = "nginx" }
  }
  spec {
    rule {
      host = "cloudmon.local"
      http {
        path {
          path      = "/"
          path_type = "Prefix"
          backend {
            service {
              name = kubernetes_service_v1.cloudmon_service.metadata[0].name
              port { number = 80 }
            }
          }
        }
      }
    }
  }
}