diff --git a/manifests/compute.pp b/manifests/compute.pp
index 225556bf4..1a768e2f8 100644
--- a/manifests/compute.pp
+++ b/manifests/compute.pp
@@ -100,6 +100,17 @@
 #   can also be set in the api.pp class.
 #   Defaults to false
 #
+#  [*resize_confirm_window*]
+#   (optional) Automatically confirm resizes after N seconds.
+#   Resize functionality will save the existing server before resizing.
+#   After the resize completes, user is requested to confirm the resize.
+#   The user has the opportunity to either confirm or revert all
+#   changes. Confirm resize removes the original server and changes
+#   server status from resized to active. Setting this option to a time
+#   period (in seconds) will automatically confirm the resize if the
+#   server is in resized state longer than that time.
+#   Defaults to $::os_service_default
+#
 #  [*vcpu_pin_set*]
 #   (optional) A list or range of physical CPU cores to reserve
 #   for virtual machine processes
@@ -165,6 +176,7 @@ class nova::compute (
   $pci_passthrough                    = $::os_service_default,
   $config_drive_format                = $::os_service_default,
   $allow_resize_to_same_host          = false,
+  $resize_confirm_window              = $::os_service_default,
   $vcpu_pin_set                       = $::os_service_default,
   $keymgr_api_class                   = $::os_service_default,
   $barbican_auth_endpoint             = $::os_service_default,
@@ -226,6 +238,7 @@ is used. It will be removed once Nova removes it.")
     'DEFAULT/compute_manager':                   value => $compute_manager;
     'DEFAULT/heal_instance_info_cache_interval': value => $heal_instance_info_cache_interval;
     'DEFAULT/pci_passthrough_whitelist':         value => $pci_passthrough_real;
+    'DEFAULT/resize_confirm_window':             value => $resize_confirm_window;
     'DEFAULT/vcpu_pin_set':                      value => $vcpu_pin_set_real;
     'key_manager/api_class':                     value => $keymgr_api_class;
     'barbican/auth_endpoint':                    value => $barbican_auth_endpoint;
diff --git a/releasenotes/notes/add_resize_confirm_window_parameter-e89c246e2f0f9d85.yaml b/releasenotes/notes/add_resize_confirm_window_parameter-e89c246e2f0f9d85.yaml
new file mode 100644
index 000000000..abe6cc289
--- /dev/null
+++ b/releasenotes/notes/add_resize_confirm_window_parameter-e89c246e2f0f9d85.yaml
@@ -0,0 +1,3 @@
+---
+features:
+  - Adds the resize_confirm_window parameter to nova configuration for compute service.
diff --git a/spec/classes/nova_compute_spec.rb b/spec/classes/nova_compute_spec.rb
index e7300d715..022fb153b 100644
--- a/spec/classes/nova_compute_spec.rb
+++ b/spec/classes/nova_compute_spec.rb
@@ -25,6 +25,7 @@ describe 'nova::compute' do
       end
 
       it { is_expected.to contain_nova_config('DEFAULT/allow_resize_to_same_host').with(:value => 'false') }
+      it { is_expected.to contain_nova_config('DEFAULT/resize_confirm_window').with_value('<SERVICE DEFAULT>') }
       it { is_expected.to contain_nova_config('DEFAULT/vcpu_pin_set').with(:value => '<SERVICE DEFAULT>') }
       it { is_expected.to_not contain_nova_config('vnc/novncproxy_base_url') }
       it { is_expected.to contain_nova_config('key_manager/api_class').with_value('<SERVICE DEFAULT>') }
@@ -72,6 +73,7 @@ describe 'nova::compute' do
           :heal_instance_info_cache_interval  => '120',
           :pci_passthrough                    => "[{\"vendor_id\":\"8086\",\"product_id\":\"0126\"},{\"vendor_id\":\"9096\",\"product_id\":\"1520\",\"physical_network\":\"physnet1\"}]",
           :config_drive_format                => 'vfat',
+          :resize_confirm_window              => '3',
           :vcpu_pin_set                       => ['4-12','^8','15'],
           :keymgr_api_class                   => 'castellan.key_manager.barbican_key_manager.BarbicanKeyManager',
           :barbican_endpoint                  => 'http://localhost',
@@ -127,6 +129,8 @@ describe 'nova::compute' do
 
       it { is_expected.to contain_nova_config('DEFAULT/force_raw_images').with(:value => false) }
 
+      it { is_expected.to contain_nova_config('DEFAULT/resize_confirm_window').with_value('3') }
+
       it { is_expected.to contain_nova_config('DEFAULT/vcpu_pin_set').with(:value => '4-12,^8,15') }
 
       it 'configures nova pci_passthrough_whitelist entries' do