Fix logging permissions for IPA

Since the change to Zuulv3 based CI, we've observed some
changes in default permissions which cause some CI jobs to
now fail.

As such, adding the creation of /var/log/ironic the setup of
ironic.

Change-Id: I8b6dbb724c6de618798d4207fbfacc935837ae57

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

@@ -182,13 +182,16 @@
     state: directory
     mode: 0755
   when: init_template == 'systemd_template.j2'
+
 - name: "Install ironic-inspector to permit use of inspection interface"
   include: inspector_bootstrap.yml
   when: enable_inspector | bool == true
+
 - name: "Get ironic-api & ironic-conductor install location"
   shell: echo $(dirname $(which ironic-api))
   register: ironic_install_prefix
   environment: "{{ bifrost_venv_env if enable_venv else {} }}"
+
 - name: "Set permissions for /var/lib/ironic for the ironic user"
   file:
     path: "{{ item }}"
@@ -199,6 +202,17 @@
   with_items:
     - "/var/lib/ironic"
     - "/var/lib/ironic/images"
+
+- name: "Set permissions for /var/log/ironic for the ironic user"
+  file:
+    path: "{{ item }}"
+    state: directory
+    mode: 0755
+    owner: "ironic"
+    group: "ironic"
+  with_items:
+    - "/var/log/ironic"
+
 - name: "Place ironic services"
   template:
     src: "{{ init_template }}"