etcd directly in host

fix etcd configuration for nodes

fix wrong calico checksums

using a var name etcd_bin_dir

fix etcd handlers for sysvinit

using a var name etcd_bin_dir

sysvinit script

review etcd configuration

roles/etcd/tasks/install.yml

@@ -0,0 +1,14 @@
+---
+- name: Create etcd user
+  user: name=etcd shell=/bin/nologin home=/var/lib/etcd
+
+- name: Install etcd binaries
+  copy:
+     src={{ etcd_bin_dir }}/{{ item }}
+     dest={{ bin_dir }}
+     owner=etcd
+     mode=0755
+  with_items:
+    - etcdctl
+    - etcd
+  notify: restart etcd