Tidy definition of http dir for inspector

The directory for the tftp server defined consistently between ironic
and inspector, but not for the http directory.

This patch makes the definition of the http directory work the same
way as the tftp one.

Change-Id: I8d893faa31e5858c4923cb12ef453ec9397db5df

defaults/main.yml

@@ -420,7 +420,7 @@ ironic_inspector_dhcp_lease_time: 600
 ironic_inspector_dhcp_type: dnsmasq # isc_dhcp
 ironic_inspector_boot_mode: http #tftp
 ironic_inspector_pxe_boot_mode: "{{ ironic_inspector_boot_mode }}"
-ironic_inspector_httpboot_dir: /httpboot
+ironic_inspector_httpboot_dir: "{{ ironic_http_root }}"
 ironic_inspector_tftpboot_dir: "{{ ironic_tftpd_root }}"
 
 ironic_inspector_dhcp_interface: "{{ ironic_bmaas_interface }}"

tasks/ironic_inspector_post_install.yml

@@ -28,7 +28,7 @@
 - name: Download IPA Images
   get_url:
     url: "{{ item.url }}"
-    dest: "/httpboot/{{ item.name }}"
+    dest: "{{ ironic_inspector_httpboot_dir }}/{{ item.name }}"
     checksum: "sha256:{{ item.sha_url }}"
     owner: "{{ ironic_system_user_name }}"
     group: "{{ ironic_system_group_name }}"

templates/ironic-ipxe.conf.j2

@@ -10,7 +10,7 @@ server {
 
   # directory to store ipxe
   location / {
-    root /httpboot;
+    root {{ ironic_http_root }};
     autoindex off;
     expires 1h;
   }