Add etcd-events cluster for kube-apiserver (#2385)

Add etcd-events cluster for kube-apiserver

roles/etcd/tasks/install_docker.yml

@@ -18,3 +18,13 @@
     mode: 0755
     backup: yes
   notify: restart etcd
+
+- name: Install etcd-events launch script
+  template:
+    src: etcd-events.j2
+    dest: "{{ bin_dir }}/etcd-events"
+    owner: 'root'
+    mode: 0755
+    backup: yes
+  when: etcd_events_cluster_setup
+  notify: restart etcd-events