diff --git a/ansible/group_vars/all/bifrost b/ansible/group_vars/all/bifrost
index 735fbb733bbce1653e395f29f60e5d0d9dda519f..c24ca67d386c6377d506dcc8ba150e81a98db8c7 100644
--- a/ansible/group_vars/all/bifrost
+++ b/ansible/group_vars/all/bifrost
@@ -65,6 +65,12 @@ kolla_bifrost_dib_packages: []
 # Name of disk image file to deploy. Default is "deployment_image.qcow2".
 kolla_bifrost_deploy_image_filename: "deployment_image.qcow2"
 
+# UUID of the root filesystem contained within the deployment image.
+# See below URL for instructions on how to extract it:
+# https://docs.openstack.org/ironic/latest/admin/raid.html#image-requirements
+# Default is none.
+kolla_bifrost_deploy_image_rootfs:
+
 ###############################################################################
 # Ironic configuration.
 
diff --git a/ansible/kolla-bifrost-hostvars.yml b/ansible/kolla-bifrost-hostvars.yml
index 3926f8f93074744b596caeead4d72e7234fa0e2e..e43bcd7e6b64aede86e45b9a626c5ff8ad403849 100644
--- a/ansible/kolla-bifrost-hostvars.yml
+++ b/ansible/kolla-bifrost-hostvars.yml
@@ -15,6 +15,7 @@
     bifrost_hostvars:
       addressing_mode: static
       deploy_image_filename: "{{ kolla_bifrost_deploy_image_filename }}"
+      deploy_image_rootfs: "{{ kolla_bifrost_deploy_image_rootfs | default(omit, true) }}"
       ipv4_interface_mac: "{% raw %}{{ extra.pxe_interface_mac | default }}{% endraw %}"
       ipv4_address: "{{ admin_oc_net_name | net_ip }}"
       ipv4_subnet_mask: "{{ admin_oc_net_name | net_mask }}"
diff --git a/etc/kayobe/bifrost.yml b/etc/kayobe/bifrost.yml
index 9cabe81215c169cea03ce6ebd1b2c6b62b40e720..a9eba19dd394151e4febc270ba18b7ca7f4c524a 100644
--- a/etc/kayobe/bifrost.yml
+++ b/etc/kayobe/bifrost.yml
@@ -65,6 +65,12 @@
 # Name of disk image file to deploy. Default is "deployment_image.qcow2".
 #kolla_bifrost_deploy_image_filename:
 
+# UUID of the root filesystem contained within the deployment image.
+# See below URL for instructions on how to extract it:
+# https://docs.openstack.org/ironic/latest/admin/raid.html#image-requirements
+# Default is none.
+#kolla_bifrost_deploy_image_rootfs:
+
 ###############################################################################
 # Ironic configuration.
 
diff --git a/releasenotes/notes/add-support-for-rootfs-uuid-42f0c551a383799b.yaml b/releasenotes/notes/add-support-for-rootfs-uuid-42f0c551a383799b.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..413adbf204368e6006ae8ce8c5ec400842280ecb
--- /dev/null
+++ b/releasenotes/notes/add-support-for-rootfs-uuid-42f0c551a383799b.yaml
@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Adds support for setting root filesystem's UUID via a new variable
+    ``kolla_bifrost_deploy_image_rootfs``. This is useful when deploying
+    overcloud hosts with software RAID based root disk devices.