ironic: add ironic_agent_files_directory parameter

With the parameter ironic_agent_files_directory it is possible to provide
the directory for the ironic-agent.kernel and ironic-agent.initramfs
files. By default the parameter is set to the value of node_custom_config.
This corresponds to the existing behaviour.

Change-Id: I53bb0eddc5380713a967356c85897d8df8ce505f

ansible/roles/ironic/defaults/main.yml

@@ -300,6 +300,7 @@ ironic_dev_mode: "{{ kolla_dev_mode }}"
 ironic_inspector_dev_mode: "{{ ironic_dev_mode }}"
 ironic_source_version: "{{ kolla_source_version }}"
 ironic_inspector_source_version: "{{ ironic_source_version }}"
+ironic_agent_files_directory: "{{ node_custom_config }}"
 
 
 ####################

ansible/roles/ironic/tasks/config.yml

@@ -170,7 +170,7 @@
   vars:
     service: "{{ ironic_services['ironic-tftp'] }}"
   copy:
-    src: "{{ node_custom_config }}/ironic/{{ item }}"
+    src: "{{ ironic_agent_files_directory }}/ironic/{{ item }}"
     dest: "{{ node_config_directory }}/ironic-tftp/{{ item }}"
     mode: "0660"
   become: true
@@ -191,7 +191,7 @@
   vars:
     service: "{{ ironic_services['ironic-http'] }}"
   copy:
-    src: "{{ node_custom_config }}/ironic/{{ item }}"
+    src: "{{ ironic_agent_files_directory }}/ironic/{{ item }}"
     dest: "{{ node_config_directory }}/ironic-http/{{ item }}"
     mode: "0660"
   become: true

ansible/roles/ironic/tasks/precheck.yml

@@ -51,7 +51,7 @@
 
 - name: Checking ironic-agent files exist for Ironic Inspector
   stat:
-    path: "{{ node_custom_config }}/ironic/{{ item }}"
+    path: "{{ ironic_agent_files_directory }}/ironic/{{ item }}"
   delegate_to: localhost
   run_once: True
   register: result

releasenotes/notes/ironic-agent-files-directory-parameter-12868270b1d7f0ea.yaml

@@ -0,0 +1,8 @@
+---
+features:
+  - |
+    With the parameter ``ironic_agent_files_directory`` it is possible to
+    provide the directory for the ``ironic-agent.kernel`` and
+    ``ironic-agent.initramfs`` files. By default the parameter is set to
+    the value of ``node_custom_config``.  This corresponds to the existing
+    behaviour.