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/handlers/main.yml

@@ -0,0 +1,14 @@
+---
+- name: restart systemd-etcd
+  command: /bin/true
+  notify:
+    - reload systemd
+    - restart etcd
+
+- name: reload systemd
+  command: systemctl daemon-reload
+
+- name: restart etcd
+  service:
+    name: etcd
+    state: restarted