Make bifrost more metalsmith-friendly

1) Set default_resource_class (required for allocation API)
2) Create a checksum file for the cirros image

Change-Id: I35ae422823511131a1eeb5e072fa2820af264534

playbooks/roles/bifrost-ironic-install/defaults/main.yml

@@ -133,6 +133,8 @@ enabled_deploy_interfaces: "iscsi,direct"
 enabled_management_interfaces: "redfish,ilo,ipmitool,noop"
 enabled_power_interfaces: "redfish,ilo,ipmitool,fake"
 
+default_resource_class: baremetal
+
 # Extra pip packages to install with ironic
 # This should be a list of pip-installable references.
 # default: empty list

playbooks/roles/bifrost-ironic-install/tasks/bootstrap.yml

@@ -300,6 +300,11 @@
     url: "{{ cirros_deploy_image_upstream_url }}"
     dest: "{{ deploy_image }}"
   when: use_cirros | bool == true
+- name: "Create a checksum file for cirros"
+  shell: md5sum {{ deploy_image_filename }} > {{ deploy_image_filename }}.CHECKSUMS
+  args:
+    chdir: "{{ http_boot_folder }}"
+  when: use_cirros | bool
 - name: >
     "Explicitly permit nginx port (TCP) for file downloads from nodes to be provisioned
      and TCP/6385 for IPA callback"

playbooks/roles/bifrost-ironic-install/templates/ironic.conf.j2

@@ -19,6 +19,8 @@ enabled_deploy_interfaces = {{ enabled_deploy_interfaces }}
 
 enabled_hardware_types = {{ enabled_hardware_types }}
 
+default_resource_class = {{ default_resource_class }}
+
 {% if use_rabbitmq is defined and use_rabbitmq | bool == true %}
 transport_url = rabbit://ironic:{{ironic_db_password }}@{{ message_queue_host | default('127.0.0.1') }}:{{ message_queue_port | default('5672') }}/{{ rabbit_virtual_host | default('') }}
 {% else %}

releasenotes/notes/resource-class-243535c9049cbd73.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Sets the default resource class for newly enrolled nodes without an
+    explicit resource class. Defaults to ``baremetal``, can be changed via
+    the ``default_resource_class`` parameter.