infra/modules/kubernetes/home_assistant/main.tf

variable "tls_secret_name" {}
variable "client_certificate_secret_name" {}
variable "configuration_yaml" {}

resource "kubernetes_namespace" "home_assistant" {
  metadata {
    name = "home-assistant"
  }
}

resource "kubernetes_config_map" "home_assistant_config_map" {
  metadata {
    name      = "home-assistant-configmap"
    namespace = "home-assistant"

    annotations = {
      "reloader.stakater.com/match" = "true"
    }
  }

  data = {
    # "db.viktorbarzin.lan"         = var.db_viktorbarzin_lan
    # "db.viktorbarzin.me"          = format("%s%s", var.db_viktorbarzin_me, file("${path.module}/extra/viktorbarzin.me"))
    # "db.181.191.213.in-addr.arpa" = var.db_ptr
    "configuration.yaml" = var.configuration_yaml
  }
}

module "tls_secret" {
  source          = "../setup_tls_secret"
  namespace       = "home-assistant"
  tls_secret_name = var.tls_secret_name
}

resource "helm_release" "home_assistant" {
  namespace        = "home-assistant"
  create_namespace = true
  name             = "home-assistant"

  repository = "https://k8s-at-home.com/charts/"
  chart      = "home-assistant"

  values = [templatefile("${path.module}/home_assistant_chart_values.tpl", { tls_secret_name = var.tls_secret_name, client_certificate_secret_name = var.client_certificate_secret_name })]
}

resource "kubernetes_deployment" "home_assistant" {
  metadata {
    name      = "home-assistant"
    namespace = "home-assistant"

    labels = {
      "app.kubernetes.io/instance" = "home-assistant"
      "app.kubernetes.io/name"     = "home-assistant"
      "app.kubernetes.io/version"  = "2022.5.4"
    }
  }

  spec {
    replicas = 1

    selector {
      match_labels = {
        "app.kubernetes.io/instance" = "home-assistant"
        "app.kubernetes.io/name"     = "home-assistant"
      }
    }

    template {
      metadata {
        labels = {
          "app.kubernetes.io/instance" = "home-assistant"

          "app.kubernetes.io/name" = "home-assistant"
        }
      }

      spec {
        container {
          name = "home-assistant"
          # image = "ghcr.io/home-assistant/home-assistant:2022.5.4"
          image = "ghcr.io/home-assistant/home-assistant:2022.5.5"
          #   image = "ghcr.io/home-assistant/home-assistant"
          port {
            name           = "http"
            container_port = 8123
            protocol       = "TCP"
          }
          env {
            name  = "TZ"
            value = "UTC+3"
          }

          volume_mount {
            name       = "configuration"
            mount_path = "/config"
            # sub_path   = "hackmd"
          }
          liveness_probe {
            tcp_socket {
              port = "8123"
            }
            timeout_seconds   = 1
            period_seconds    = 10
            success_threshold = 1
            failure_threshold = 3
          }

          readiness_probe {
            tcp_socket {
              port = "8123"
            }

            timeout_seconds   = 1
            period_seconds    = 10
            success_threshold = 1
            failure_threshold = 3
          }

          startup_probe {
            tcp_socket {
              port = "8123"
            }

            timeout_seconds   = 1
            period_seconds    = 5
            success_threshold = 1
            failure_threshold = 30
          }

          termination_message_path = "/dev/termination-log"
          image_pull_policy        = "IfNotPresent"
        }

        volume {
          name = "configuration"
          iscsi {
            target_portal = "iscsi.viktorbarzin.lan:3260"
            fs_type       = "ext4"
            iqn           = "iqn.2020-12.lan.viktorbarzin:storage:home-assistant"
            lun           = 0
            read_only     = false
          }
        }

        restart_policy                   = "Always"
        termination_grace_period_seconds = 30
        dns_policy                       = "ClusterFirst"
        service_account_name             = "default"
      }
    }

    strategy {
      type = "Recreate"
    }
    revision_history_limit = 3
  }
}
resource "kubernetes_service" "home_assistant" {
  metadata {
    name      = "home-assistant"
    namespace = "home-assistant"

    labels = {
      "app.kubernetes.io/instance" = "home-assistant"

      "app.kubernetes.io/managed-by" = "Helm"

      "app.kubernetes.io/name" = "home-assistant"

      "app.kubernetes.io/version" = "2022.5.4"

      "helm.sh/chart" = "home-assistant-13.2.0"
    }

    annotations = {
      "meta.helm.sh/release-name" = "home-assistant"

      "meta.helm.sh/release-namespace" = "home-assistant"
    }
  }

  spec {
    port {
      name        = "http"
      protocol    = "TCP"
      port        = 8123
      target_port = "http"
    }

    selector = {
      "app.kubernetes.io/instance" = "home-assistant"

      "app.kubernetes.io/name" = "home-assistant"
    }

    # cluster_ip       = "10.102.20.150"
    type             = "ClusterIP"
    session_affinity = "None"
  }
}



resource "kubernetes_ingress_v1" "home-assistant-ui" {
  metadata {
    name      = "home-assistant-ui-ingress"
    namespace = "home-assistant"
    annotations = {
      "kubernetes.io/ingress.class"                        = "nginx"
      "nginx.ingress.kubernetes.io/force-ssl-redirect"     = "true"
      "nginx.ingress.kubernetes.io/auth-tls-verify-client" = "on"
      "nginx.ingress.kubernetes.io/auth-tls-secret"        = var.client_certificate_secret_name
    }
  }

  spec {
    tls {
      hosts       = ["home-assistant.viktorbarzin.me"]
      secret_name = var.tls_secret_name
    }
    rule {
      host = "home-assistant.viktorbarzin.me"
      http {
        path {
          path = "/"
          backend {
            service {
              name = "home-assistant"
              port {
                number = 8123
              }
            }
          }
        }
      }
    }
  }
}