diff --git a/environments/undercloud.yaml b/environments/undercloud.yaml
index a9d9910c31..970f111839 100644
--- a/environments/undercloud.yaml
+++ b/environments/undercloud.yaml
@@ -2,6 +2,7 @@ resource_registry:
   OS::TripleO::Network::Ports::RedisVipPort: ../network/ports/noop.yaml
   OS::TripleO::Network::Ports::ControlPlaneVipPort: ../deployed-server/deployed-neutron-port.yaml
   OS::TripleO::Undercloud::Net::SoftwareConfig: ../net-config-undercloud.yaml
+  OS::TripleO::NodeExtraConfig: ../extraconfig/pre_deploy/undercloud_pre.yaml
   OS::TripleO::NodeExtraConfigPost: ../extraconfig/post_deploy/undercloud_post.yaml
   OS::TripleO::Services::DockerRegistry: ../puppet/services/docker-registry.yaml
   OS::TripleO::Services::ContainerImagePrepare: ../puppet/services/container-image-prepare.yaml
diff --git a/extraconfig/pre_deploy/undercloud_pre.sh b/extraconfig/pre_deploy/undercloud_pre.sh
new file mode 100644
index 0000000000..e5311d432c
--- /dev/null
+++ b/extraconfig/pre_deploy/undercloud_pre.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# This needs to be run after os-net-config. since os-net-config potentially can
+# restart network interfaces, which would affects VIPs controlled by
+# keepalived.
+
+# TODO(hjensas): Remove this when we have keepalived 2.0.6 or later.
+docker container restart keepalived || true
diff --git a/extraconfig/pre_deploy/undercloud_pre.yaml b/extraconfig/pre_deploy/undercloud_pre.yaml
new file mode 100644
index 0000000000..e63b48a53c
--- /dev/null
+++ b/extraconfig/pre_deploy/undercloud_pre.yaml
@@ -0,0 +1,23 @@
+heat_template_version: rocky
+
+description: >
+  Pre-deployment for the TripleO undercloud
+
+parameters:
+  server:
+    type: string
+
+resources:
+
+  UndercloudPreConfig:
+    type: OS::Heat::SoftwareConfig
+    properties:
+      group: script
+      config: {get_file: ./undercloud_pre.sh}
+
+  UndercloudPreDeployment:
+    type: OS::Heat::SoftwareDeployment
+    properties:
+      name: UndercloudPreDeployment
+      server:  {get_param: server}
+      config: {get_resource: UndercloudPreConfig}
diff --git a/releasenotes/notes/fix-contiainer-underloud-keepalived-needs-restart-6d7efbb9788e0f95.yaml b/releasenotes/notes/fix-contiainer-underloud-keepalived-needs-restart-6d7efbb9788e0f95.yaml
new file mode 100644
index 0000000000..050d1b53f1
--- /dev/null
+++ b/releasenotes/notes/fix-contiainer-underloud-keepalived-needs-restart-6d7efbb9788e0f95.yaml
@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    An issue causing undercloud installer re-run (or update) to fail because
+    VIP's where lost in case the networking configuration was changed has been
+    fixed. See `Bug: 1791238
+    <https://bugs.launchpad.net/tripleo/+bug/1791238>`_.