diff --git a/charts/openstack-cluster/templates/control-plane/openstack-machine-template.yaml b/charts/openstack-cluster/templates/control-plane/openstack-machine-template.yaml
index 13cdf59a..246832a8 100644
--- a/charts/openstack-cluster/templates/control-plane/openstack-machine-template.yaml
+++ b/charts/openstack-cluster/templates/control-plane/openstack-machine-template.yaml
@@ -78,6 +78,13 @@ template:
     serverGroup:
       id: {{ . }}
     {{- end }}
+    {{- with mergeOverwrite .Values.machineMetadata .Values.controlPlane.machineMetadata }}
+    serverMetadata:
+      {{- range $k, $v := . }}
+      - key: {{ quote $k }}
+        value: {{ quote $v }}
+      {{- end }}
+    {{- end }}
 {{- end }}
 
 {{- define "openstack-cluster.controlplane.mt.checksum" -}}
diff --git a/charts/openstack-cluster/templates/node-group/openstack-machine-template.yaml b/charts/openstack-cluster/templates/node-group/openstack-machine-template.yaml
index f505d8fe..5e2d3a4f 100644
--- a/charts/openstack-cluster/templates/node-group/openstack-machine-template.yaml
+++ b/charts/openstack-cluster/templates/node-group/openstack-machine-template.yaml
@@ -74,6 +74,13 @@ template:
     serverGroup:
       id: {{ . }}
     {{- end }}
+    {{- with mergeOverwrite $ctx.Values.machineMetadata $nodeGroup.machineMetadata }}
+    serverMetadata:
+      {{- range $k, $v := . }}
+      - key: {{ quote $k }}
+        value: {{ quote $v }}
+      {{- end }}
+    {{- end }}
 {{- end }}
 
 {{- define "openstack-cluster.nodegroup.mt.checksum" -}}
diff --git a/charts/openstack-cluster/values.yaml b/charts/openstack-cluster/values.yaml
index 087f103c..a2ebabe0 100644
--- a/charts/openstack-cluster/values.yaml
+++ b/charts/openstack-cluster/values.yaml
@@ -25,6 +25,9 @@ machineImageId:
 # The name of the SSH key to inject into cluster machines
 machineSSHKeyName:
 
+# Global metadata items to add to each machine
+machineMetadata: {}
+
 # The prefix used for project labels and annotations
 projectPrefix: capi.stackhpc.com
 
@@ -246,6 +249,8 @@ controlPlane:
     # The volume availability zone to use
     # If not specified, the machine availability zone is used
     # availabilityZone:
+  # Specific metadata for control plane nodes
+  machineMetadata: {}
   # The ID of the server group to use for control plane machines
   serverGroupId:
   # Labels to apply to the node objects in Kubernetes that correspond to control plane machines
@@ -380,6 +385,9 @@ nodeGroupDefaults:
     # The volume availability zone to use
     # If not specified, the machine availability zone is used
     # availabilityZone:
+  # Specific metadata for worker nodes
+  # Can also be specified for each node group
+  machineMetadata: {}
   # The ID of the server group to use for machines in the node group
   serverGroupId:
   # Labels to apply to the node objects in Kubernetes that correspond to machines in the node group