Deploy kubelet and kube-apiserver as containers

kubelet via docker
kube-apiserver as a static pod

Fixed etcd service start to be more tolerant of slow start.

Workaround for kube_version to stay in download role, but not
download an files by creating a new "nothing" download entry.

roles/kubernetes/node/tasks/install.yml

@@ -14,7 +14,7 @@
   when: ansible_service_mgr in ["sysvinit","upstart"] and ansible_os_family == "RedHat"
   notify: restart kubelet
 
-- name: install | Install kubelet binary
-  command: rsync -piu "{{ local_release_dir }}/kubernetes/bin/kubelet" "{{ bin_dir }}/kubelet"
-  register: kubelet_copy
+- name: install | Install kubelet launch script
+  template: src=kubelet-container.j2 dest="{{ bin_dir }}/kubelet" owner=kube mode=0755 backup=yes
+  register: kubelet_launcher
   changed_when: false

roles/kubernetes/node/tasks/main.yml

@@ -26,7 +26,7 @@
 - name: Restart kubelet if binary changed
   command: /bin/true
   notify: restart kubelet
-  when: kubelet_copy.stdout_lines
+  when: kubelet_launcher.changed
 
 # reload-systemd
 - meta: flush_handlers