diff --git a/nova/files/mitaka/nova-compute.conf.Debian b/nova/files/mitaka/nova-compute.conf.Debian
index b570570..05ec5d1 100644
--- a/nova/files/mitaka/nova-compute.conf.Debian
+++ b/nova/files/mitaka/nova-compute.conf.Debian
@@ -47,6 +47,10 @@
 cpu_allocation_ratio = {{ compute.cpu_allocation_ratio }}
 {%- endif %}
 
+{%- if compute.disk_allocation_ratio is defined %}
+disk_allocation_ratio = {{ compute.disk_allocation_ratio }}
+{%- endif %}
+
 remove_unused_original_minimum_age_seconds=86400
 image_service=nova.image.glance.GlanceImageService
 
diff --git a/nova/files/newton/nova-compute.conf.Debian b/nova/files/newton/nova-compute.conf.Debian
index 2540a43..c7ef466 100644
--- a/nova/files/newton/nova-compute.conf.Debian
+++ b/nova/files/newton/nova-compute.conf.Debian
@@ -63,6 +63,10 @@
 cpu_allocation_ratio = {{ compute.cpu_allocation_ratio }}
 {%- endif %}
 
+{%- if compute.disk_allocation_ratio is defined %}
+disk_allocation_ratio = {{ compute.disk_allocation_ratio }}
+{%- endif %}
+
 #
 # Defines which physical CPUs (pCPUs) can be used by instance
 # virtual CPUs (vCPUs).
diff --git a/nova/files/ocata/nova-compute.conf.Debian b/nova/files/ocata/nova-compute.conf.Debian
index 3c069ed..f6a77be 100644
--- a/nova/files/ocata/nova-compute.conf.Debian
+++ b/nova/files/ocata/nova-compute.conf.Debian
@@ -610,7 +610,11 @@
 # * Any valid positive integer or float value
 #  (floating point value)
 # Minimum value: 0
+{%- if compute.disk_allocation_ratio is defined %}
+disk_allocation_ratio = {{ compute.disk_allocation_ratio }}
+{%- else  %}
 #disk_allocation_ratio=0.0
+{%- endif %}
 
 #
 # Console proxy host to be used to connect to instances on this host. It is the
diff --git a/nova/files/pike/nova-compute.conf.Debian b/nova/files/pike/nova-compute.conf.Debian
index 67bb430..b76fd4b 100644
--- a/nova/files/pike/nova-compute.conf.Debian
+++ b/nova/files/pike/nova-compute.conf.Debian
@@ -618,7 +618,11 @@
 # * Any valid positive integer or float value
 #  (floating point value)
 # Minimum value: 0
+{%- if compute.disk_allocation_ratio is defined %}
+disk_allocation_ratio = {{ compute.disk_allocation_ratio }}
+{%- else  %}
 #disk_allocation_ratio=0.0
+{%- endif %}
 
 #
 # Console proxy host to be used to connect to instances on this host. It is the
diff --git a/nova/files/queens/nova-compute.conf.Debian b/nova/files/queens/nova-compute.conf.Debian
index 54dfd87..e71d7b4 100644
--- a/nova/files/queens/nova-compute.conf.Debian
+++ b/nova/files/queens/nova-compute.conf.Debian
@@ -666,7 +666,11 @@
 # * Any valid positive integer or float value
 #  (floating point value)
 # Minimum value: 0
+{%- if compute.disk_allocation_ratio is defined %}
+disk_allocation_ratio = {{ compute.disk_allocation_ratio }}
+{%- else  %}
 #disk_allocation_ratio = 0.0
+{%- endif %}
 
 #
 # Console proxy host to be used to connect to instances on this host.
diff --git a/nova/files/queens/nova-controller.conf.Debian b/nova/files/queens/nova-controller.conf.Debian
index fbf978b..9ee396e 100644
--- a/nova/files/queens/nova-controller.conf.Debian
+++ b/nova/files/queens/nova-controller.conf.Debian
@@ -655,7 +655,11 @@
 # * Any valid positive integer or float value
 #  (floating point value)
 # Minimum value: 0
+{%- if controller.disk_allocation_ratio is defined %}
+disk_allocation_ratio = {{ controller.disk_allocation_ratio }}
+{%- else  %}
 #disk_allocation_ratio = 0.0
+{%- endif %}
 
 #
 # Console proxy host to be used to connect to instances on this host.
diff --git a/tests/pillar/compute_cluster.sls b/tests/pillar/compute_cluster.sls
index 4988c0b..e6124f2 100644
--- a/tests/pillar/compute_cluster.sls
+++ b/tests/pillar/compute_cluster.sls
@@ -13,6 +13,9 @@
     vnc_keymap: en-gb
     resume_guests_state_on_host_boot: True
     preallocate_images: space
+    cpu_allocation_ratio: 16.0
+    ram_allocation_ratio: 1.5
+    disk_allocation_ratio: 1.0
     bind:
       vnc_address: 127.0.0.1
       vnc_port: 6080
diff --git a/tests/pillar/compute_single.sls b/tests/pillar/compute_single.sls
index c2b740a..99e4aff 100644
--- a/tests/pillar/compute_single.sls
+++ b/tests/pillar/compute_single.sls
@@ -8,6 +8,9 @@
     resume_guests_state_on_host_boot: False
     preallocate_images: space
     cpu_mode: custom
+    cpu_allocation_ratio: 16.0
+    ram_allocation_ratio: 1.5
+    disk_allocation_ratio: 1.0
     libvirt:
       cpu_model: IvyBridge
     bind: