locals {
    annotations = {
      "vynil.solidite.fr/meta"   = "domain-monitor"
      "vynil.solidite.fr/name"   = var.namespace
      "vynil.solidite.fr/domain" = var.domain-name
      "vynil.solidite.fr/issuer" = var.issuer
      "vynil.solidite.fr/ingress" = var.ingress-class
    }
    global = {
        "domain"        = var.namespace
        "domain-name"   = "admin.${var.domain-name}"
        "issuer"        = var.issuer
        "ingress-class" = var.ingress-class
        "backups"       = var.backups
        "app-group"     = var.app-group
    }
    prometheus = { for k, v in var.prometheus : k => v if k!="enable" }
    alertmanager = { for k, v in var.alertmanager : k => v if k!="enable" }
    nodeExporter = { for k, v in var.node-exporter : k => v if k!="enable" }
    kubeStateMetrics = merge({"cluster-admin" = true}, { for k, v in var.kube-state-metrics : k => v if k!="enable" })
    monitorControlPlan = merge({"cluster-admin" = true}, { for k, v in var.monitor-control-plan : k => v if k!="enable" })
}

resource "kubernetes_namespace_v1" "monitor-ns" {
  count = ( var.prometheus.enable || var.alertmanager.enable || var.nodeExporter.enable || var.kubeStateMetrics.enable || var.monitorControlPlan.enable )? 1 : 0
  metadata {
    annotations = local.annotations
    labels = merge(local.common-labels, local.annotations)
    name = "${var.namespace}-monitor"
  }
}

resource "kubectl_manifest" "alertmanager" {
  count = var.alertmanager.enable ? 1 : 0
  depends_on = [kubernetes_namespace_v1.monitor-ns]
  yaml_body  = <<-EOF
    nodeExporterVersion: "vynil.solidite.fr/v1"
    kind: "Install"
    metadata:
      name: "alertmanager"
      namespace: "${kubernetes_namespace_v1.monitor-ns[0].metadata[0].name}"
      labels: ${jsonencode(local.common-labels)}
    spec:
      distrib: "${var.distributions.domain}"
      category: "share"
      component: "alertmanager"
      options: ${jsonencode(merge(local.global, local.alertmanager))}
  EOF
}

resource "kubectl_manifest" "prometheus" {
  count = var.prometheus.enable ? 1 : 0
  yaml_body  = <<-EOF
    nodeExporterVersion: "vynil.solidite.fr/v1"
    kind: "Install"
    metadata:
      name: "prometheus"
      namespace: "${kubernetes_namespace_v1.monitor-ns[0].metadata[0].name}"
      labels: ${jsonencode(local.common-labels)}
    spec:
      distrib: "${var.distributions.domain}"
      category: "monitor"
      component: "prometheus"
      options: ${jsonencode(merge(local.global, local.prometheus))}
  EOF
}

resource "kubectl_manifest" "nodeExporter" {
  count = var.nodeExporter.enable ? 1 : 0
  yaml_body  = <<-EOF
    nodeExporterVersion: "vynil.solidite.fr/v1"
    kind: "Install"
    metadata:
      name: "node-exporter"
      namespace: "${kubernetes_namespace_v1.monitor-ns[0].metadata[0].name}"
      labels: ${jsonencode(local.common-labels)}
    spec:
      distrib: "${var.distributions.domain}"
      category: "monitor"
      component: "k8s-nodeExporter"
      options: ${jsonencode(merge(local.global, local.nodeExporter))}
  EOF
}

resource "kubectl_manifest" "kubeStateMetrics" {
  count = var.kubeStateMetrics.enable ? 1 : 0
  depends_on = [kubernetes_namespace_v1.monitor-ns]
  yaml_body  = <<-EOF
    nodeExporterVersion: "vynil.solidite.fr/v1"
    kind: "Install"
    metadata:
      name: "kube-state-metrics"
      namespace: "${kubernetes_namespace_v1.monitor-ns[0].metadata[0].name}"
      labels: ${jsonencode(local.common-labels)}
    spec:
      distrib: "${var.distributions.domain}"
      category: "monitor"
      component: "kubeStateMetrics"
      options: ${jsonencode(merge(local.global, local.kubeStateMetrics))}
  EOF
}

resource "kubectl_manifest" "monitorControlPlan" {
  count = var.monitorControlPlan.enable ? 1 : 0
  depends_on = [kubernetes_namespace_v1.monitor-ns]
  yaml_body  = <<-EOF
    nodeExporterVersion: "vynil.solidite.fr/v1"
    kind: "Install"
    metadata:
      name: "monitor-control-plan"
      namespace: "${kubernetes_namespace_v1.monitor-ns[0].metadata[0].name}"
      labels: ${jsonencode(local.common-labels)}
    spec:
      distrib: "${var.distributions.domain}"
      category: "monitor"
      component: "monitor-control-plan"
      options: ${jsonencode(merge(local.global, local.monitorControlPlan))}
  EOF
}