Add kubelet path for kubeadm.

roles/kubernetes/kubeadm/tasks/main.yml

@@ -57,6 +57,8 @@
     --ignore-preflight-errors=all
   register: kubeadm_join
   when: not is_kube_master and (not kubelet_conf.stat.exists)
+  environment:
+    PATH: "{{ bin_dir }}:{{ ansible_env.PATH }}"
 
 - name: Wait for kubelet bootstrap to create config
   wait_for: