Merge "ironic_pxe bootstrap should run on all hosts"

ansible/roles/ironic/tasks/bootstrap.yml

@@ -60,5 +60,4 @@
       - "{{ node_config_directory }}/ironic-pxe/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
       - "ironic_pxe:/tftpboot/"
-  run_once: True
-  delegate_to: "{{ groups['ironic-pxe'][0] }}"
+  when: "{{ inventory_hostname in groups['ironic-pxe'] }}"