From 041b72137e748afee77b03c368fe72c50483f6b4 Mon Sep 17 00:00:00 2001
From: rpoluri <38321430+rpoluri@users.noreply.github.com>
Date: Fri, 7 Jan 2022 11:33:39 -0600
Subject: [PATCH] Feature/headless service (#99)

* add headless service

* update changelog

Co-authored-by: Raj Poluri <rpoluri@expediagroup.com>
---
 CHANGELOG.md |  3 +++
 k8s.tf       | 19 +++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 59b03f9..b2006c4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,9 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [3.3.15] - 2022-01-06
+- Add k8s headless service, so that clients running in k8s cluster can connect to a WD container instead of virtual ip.
+
 ## [3.3.14] - 2021-12-16
 - Set env var `LOG4J_FORMAT_MSG_NO_LOOKUPS=”true”` for WD containers for log4j-shell bug.
 
diff --git a/k8s.tf b/k8s.tf
index 897eccd..ad64d4a 100644
--- a/k8s.tf
+++ b/k8s.tf
@@ -131,3 +131,22 @@ resource "kubernetes_service" "waggle_dance" {
     load_balancer_source_ranges = var.ingress_cidr
   }
 }
+
+resource "kubernetes_service" "waggle_dance_headless" {
+  count = var.wd_instance_type == "k8s" ? 1 : 0
+  metadata {
+    name      = "${local.instance_alias}-headless"
+    namespace = var.k8s_namespace
+  }
+  spec {
+    selector = {
+      name = local.instance_alias
+    }
+    port {
+      port        = local.wd_port
+      target_port = local.wd_port
+    }
+    type       = "ClusterIP"
+    cluster_ip = "None"
+  }
+}