Merge "Put etcd behind HTTP loadbalancer"

ansible/roles/etcd/defaults/main.yml

@@ -23,7 +23,13 @@ etcd_services:
     image: "{{ etcd_image_full }}"
     volumes: "{{ etcd_default_volumes + etcd_extra_volumes }}"
     dimensions: "{{ etcd_dimensions }}"
-
+    haproxy:
+      etcd:
+        enabled: true
+        mode: "http"
+        external: false
+        port: "{{ etcd_client_port }}"
+        tls_backend: "{{ etcd_enable_tls | bool }}"
 
 ####################
 # Docker

ansible/roles/etcd/tasks/loadbalancer.yml

+---
+- name: "Configure loadbalancer for {{ project_name }}"
+  import_role:
+    name: loadbalancer-config
+  vars:
+    project_services: "{{ etcd_services }}"
+  tags: always

ansible/site.yml

@@ -150,6 +150,11 @@
             tasks_from: loadbalancer
           tags: designate
           when: enable_designate | bool
+        - include_role:
+            name: etcd
+            tasks_from: loadbalancer
+          tags: etcd
+          when: enable_etcd | bool
         - include_role:
             name: freezer
             tasks_from: loadbalancer

releasenotes/notes/etcd-tcp-loadbalancer-08d9332ee3be9a8b.yaml

+---
+features:
+  - |
+    etcd is now exposed internally via HAProxy on ``etcd_client_port``.