add kafka [CI SKIP]

modules/kubernetes/kafka/kafka_chart_values.tpl

@@ -0,0 +1,9 @@
+metrics:
+    kafka: 
+        enabled: true
+persistence:
+    enabled: false
+zookeeper:
+    persistence:
+        enabled: false
+replicaCount: 3

modules/kubernetes/kafka/main.tf

@@ -0,0 +1,134 @@
+variable "tls_secret_name" {}
+
+module "tls_secret" {
+  source          = "../setup_tls_secret"
+  namespace       = "kafka"
+  tls_secret_name = var.tls_secret_name
+}
+
+resource "helm_release" "kafka" {
+  namespace        = "kafka"
+  create_namespace = true
+  name             = "kafka"
+
+  repository = "https://charts.bitnami.com/bitnami"
+  chart      = "kafka"
+
+  values = [templatefile("${path.module}/kafka_chart_values.tpl", {})]
+}
+
+resource "kubernetes_deployment" "kafka-ui" {
+  metadata {
+    name      = "kafka-ui"
+    namespace = "kafka"
+    labels = {
+      run = "kafka-ui"
+    }
+  }
+  spec {
+    replicas = 1
+    selector {
+      match_labels = {
+        run = "kafka-ui"
+      }
+    }
+    template {
+      metadata {
+        labels = {
+          run = "kafka-ui"
+        }
+      }
+      spec {
+        container {
+          image = "provectuslabs/kafka-ui:latest"
+          name  = "kafka-ui"
+          resources {
+            limits = {
+              cpu    = "0.5"
+              memory = "512Mi"
+            }
+            requests = {
+              cpu    = "250m"
+              memory = "50Mi"
+            }
+          }
+          port {
+            container_port = 8080
+          }
+          env {
+            name  = "KAFKA_CLUSTERS_0_NAME"
+            value = "local"
+          }
+          env {
+            name  = "KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS"
+            value = "kafka:9092"
+          }
+          env {
+            name  = "KAFKA_CLUSTERS_0_ZOOKEEPER"
+            value = "kafka-zookeeper:2181"
+          }
+        }
+      }
+    }
+  }
+}
+
+resource "kubernetes_service" "kafka-ui" {
+  metadata {
+    name      = "kafka-ui"
+    namespace = "kafka"
+    labels = {
+      "run" = "kafka-ui"
+    }
+    # annotations = {
+    #   "prometheus.io/scrape" = "true"
+    #   "prometheus.io/path"   = "/metrics"
+    #   "prometheus.io/port"   = "9113"
+    # }
+  }
+
+  spec {
+    selector = {
+      run = "kafka-ui"
+    }
+    port {
+      name        = "http"
+      port        = "80"
+      target_port = "8080"
+    }
+    # port {
+    #   name        = "prometheus"
+    #   port        = "9113"
+    #   target_port = "9113"
+    # }
+  }
+}
+
+resource "kubernetes_ingress" "kafka-ui" {
+  metadata {
+    name      = "kafka-ui-ingress"
+    namespace = "kafka"
+    annotations = {
+      "kubernetes.io/ingress.class" = "nginx"
+    }
+  }
+
+  spec {
+    tls {
+      hosts       = ["kafka.viktorbarzin.me"]
+      secret_name = var.tls_secret_name
+    }
+    rule {
+      host = "kafka.viktorbarzin.me"
+      http {
+        path {
+          path = "/"
+          backend {
+            service_name = "kafka-ui"
+            service_port = "80"
+          }
+        }
+      }
+    }
+  }
+}

modules/kubernetes/main.tf

@@ -83,6 +83,11 @@ module "hackmd" {
 #   source = "./ingress-nginx"
 # }
 
+module "kafka" {
+  source          = "./kafka"
+  tls_secret_name = var.tls_secret_name
+}
+
 module "kms" {
   source          = "./kms"
   tls_secret_name = var.tls_secret_name