Ensure correct tftp directory ownership for Ironic

Ironic is currently unable to create tftp files due to tftp directory
being owned by the root user. Ironic is also unable to cache images
due to root ownership. This patch corrects both issues by setting the
proper ownership and moves /var/lib/ironic to /mnt/state/

Change-Id: Ia24b09cab88359de56ce4fa662f5f301835b91dd

elements/ironic-conductor/install.d/68-ironic-tftp-support

@@ -13,9 +13,10 @@ else
     exit 1
 fi
 
-# create tftp directory
+# create tftpboot and cache directories
 install -d -m 0744 -o ironic -g ironic /tftpboot/pxelinux.cfg/
 install -o ironic -g ironic -m 744 $pxe_zero /tftpboot/pxelinux.0
+install -d -m 0744 -o ironic -g ironic /mnt/state/var/lib/ironic
 
 # Disable the tftp-hpa upstart job, we're using xinetd
 [ -f /etc/init/tftpd-hpa.conf ] && echo "manual" > /etc/init/tftpd-hpa.override
@@ -36,3 +37,6 @@ EOF
 
 # Adds support for tftp requests that don't include the directory name.
 echo 'r ^([^/]) /tftpboot/\1' > /tftpboot/map-file
+
+# ensure tftpboot dir and all files in it are owned by ironic user
+chown ironic:ironic -R /tftpboot

elements/ironic/os-apply-config/etc/ironic/ironic.conf

@@ -21,3 +21,7 @@ auth_uri = http://{{keystone.host}}:5000/v2.0
 
 [glance]
 host={{glance.host}}
+
+[pxe]
+images_path=/mnt/state/var/lib/ironic/images/
+instance_master_path=/mnt/state/var/lib/ironic/master_images