diff --git a/config/v1/0000_10_config-operator_01_infrastructure.crd.yaml b/config/v1/0000_10_config-operator_01_infrastructure.crd.yaml
index c84bab64352..27ac6c8f4b1 100644
--- a/config/v1/0000_10_config-operator_01_infrastructure.crd.yaml
+++ b/config/v1/0000_10_config-operator_01_infrastructure.crd.yaml
@@ -173,6 +173,18 @@ spec:
                   used by components like the web console to tell users where to find
                   the Kubernetes API.
                 type: string
+              controlPlaneTopology:
+                description: controlPlaneTopology expresses the expectations for operands
+                  that normally run on control nodes. The default is 'HighlyAvailable',
+                  which represents the behavior operators have in a "normal" cluster.
+                  The 'SingleReplica' mode will be used in single-node deployments
+                  and the operators should not configure the operand for highly-available
+                  operation
+                type: string
+                default: HighlyAvailable
+                enum:
+                - HighlyAvailable
+                - SingleReplica
               etcdDiscoveryDomain:
                 description: 'etcdDiscoveryDomain is the domain used to fetch the
                   SRV records for discovering etcd servers and clients. For more info:
@@ -185,6 +197,19 @@ spec:
                   a human friendly name. Once set it should not be changed. Must be
                   of max length 27 and must have only alphanumeric or hyphen characters.
                 type: string
+              infrastructureTopology:
+                description: infrastructureTopology expresses the expectations for
+                  infrastructure services that do not run on control plane nodes,
+                  usually indicated by a node selector for a `role` value other than
+                  `master`. The default is 'HighlyAvailable', which represents the
+                  behavior operators have in a "normal" cluster. The 'SingleReplica'
+                  mode will be used in single-node deployments and the operators should
+                  not configure the operand for highly-available operation
+                type: string
+                default: HighlyAvailable
+                enum:
+                - HighlyAvailable
+                - SingleReplica
               platform:
                 description: "platform is the underlying infrastructure provider for
                   the cluster. \n Deprecated: Use platformStatus.type instead."
diff --git a/config/v1/types_infrastructure.go b/config/v1/types_infrastructure.go
index 54b8f5afaf7..41be9d7bd80 100644
--- a/config/v1/types_infrastructure.go
+++ b/config/v1/types_infrastructure.go
@@ -77,8 +77,36 @@ type InfrastructureStatus struct {
 	// like kubelets, to contact the Kubernetes API server using the
 	// infrastructure provider rather than Kubernetes networking.
 	APIServerInternalURL string `json:"apiServerInternalURI"`
+
+	// controlPlaneTopology expresses the expectations for operands that normally run on control nodes.
+	// The default is 'HighlyAvailable', which represents the behavior operators have in a "normal" cluster.
+	// The 'SingleReplica' mode will be used in single-node deployments
+	// and the operators should not configure the operand for highly-available operation
+	// +kubebuilder:default=HighlyAvailable
+	ControlPlaneTopology TopologyMode `json:"controlPlaneTopology"`
+
+	// infrastructureTopology expresses the expectations for infrastructure services that do not run on control
+	// plane nodes, usually indicated by a node selector for a `role` value
+	// other than `master`.
+	// The default is 'HighlyAvailable', which represents the behavior operators have in a "normal" cluster.
+	// The 'SingleReplica' mode will be used in single-node deployments
+	// and the operators should not configure the operand for highly-available operation
+	// +kubebuilder:default=HighlyAvailable
+	InfrastructureTopology TopologyMode `json:"infrastructureTopology"`
 }
 
+// TopologyMode defines the topology mode of the control/infra nodes.
+// +kubebuilder:validation:Enum=HighlyAvailable;SingleReplica
+type TopologyMode string
+
+const (
+	// "HighlyAvailable" is for operators to configure high-availability as much as possible.
+	HighlyAvailableTopologyMode TopologyMode = "HighlyAvailable"
+
+	// "SingleReplica" is for operators to avoid spending resources for high-availability purpose.
+	SingleReplicaTopologyMode TopologyMode = "SingleReplica"
+)
+
 // PlatformType is a specific supported infrastructure provider.
 // +kubebuilder:validation:Enum="";AWS;Azure;BareMetal;GCP;Libvirt;OpenStack;None;VSphere;oVirt;IBMCloud;KubeVirt
 type PlatformType string
diff --git a/config/v1/zz_generated.swagger_doc_generated.go b/config/v1/zz_generated.swagger_doc_generated.go
index ea02878e983..0feb3397c05 100644
--- a/config/v1/zz_generated.swagger_doc_generated.go
+++ b/config/v1/zz_generated.swagger_doc_generated.go
@@ -845,13 +845,15 @@ func (InfrastructureSpec) SwaggerDoc() map[string]string {
 }
 
 var map_InfrastructureStatus = map[string]string{
-	"":                     "InfrastructureStatus describes the infrastructure the cluster is leveraging.",
-	"infrastructureName":   "infrastructureName uniquely identifies a cluster with a human friendly name. Once set it should not be changed. Must be of max length 27 and must have only alphanumeric or hyphen characters.",
-	"platform":             "platform is the underlying infrastructure provider for the cluster.\n\nDeprecated: Use platformStatus.type instead.",
-	"platformStatus":       "platformStatus holds status information specific to the underlying infrastructure provider.",
-	"etcdDiscoveryDomain":  "etcdDiscoveryDomain is the domain used to fetch the SRV records for discovering etcd servers and clients. For more info: https://github.com/etcd-io/etcd/blob/329be66e8b3f9e2e6af83c123ff89297e49ebd15/Documentation/op-guide/clustering.md#dns-discovery deprecated: as of 4.7, this field is no longer set or honored.  It will be removed in a future release.",
-	"apiServerURL":         "apiServerURL is a valid URI with scheme 'https', address and optionally a port (defaulting to 443).  apiServerURL can be used by components like the web console to tell users where to find the Kubernetes API.",
-	"apiServerInternalURI": "apiServerInternalURL is a valid URI with scheme 'https', address and optionally a port (defaulting to 443).  apiServerInternalURL can be used by components like kubelets, to contact the Kubernetes API server using the infrastructure provider rather than Kubernetes networking.",
+	"":                       "InfrastructureStatus describes the infrastructure the cluster is leveraging.",
+	"infrastructureName":     "infrastructureName uniquely identifies a cluster with a human friendly name. Once set it should not be changed. Must be of max length 27 and must have only alphanumeric or hyphen characters.",
+	"platform":               "platform is the underlying infrastructure provider for the cluster.\n\nDeprecated: Use platformStatus.type instead.",
+	"platformStatus":         "platformStatus holds status information specific to the underlying infrastructure provider.",
+	"etcdDiscoveryDomain":    "etcdDiscoveryDomain is the domain used to fetch the SRV records for discovering etcd servers and clients. For more info: https://github.com/etcd-io/etcd/blob/329be66e8b3f9e2e6af83c123ff89297e49ebd15/Documentation/op-guide/clustering.md#dns-discovery deprecated: as of 4.7, this field is no longer set or honored.  It will be removed in a future release.",
+	"apiServerURL":           "apiServerURL is a valid URI with scheme 'https', address and optionally a port (defaulting to 443).  apiServerURL can be used by components like the web console to tell users where to find the Kubernetes API.",
+	"apiServerInternalURI":   "apiServerInternalURL is a valid URI with scheme 'https', address and optionally a port (defaulting to 443).  apiServerInternalURL can be used by components like kubelets, to contact the Kubernetes API server using the infrastructure provider rather than Kubernetes networking.",
+	"controlPlaneTopology":   "controlPlaneTopology expresses the expectations for operands that normally run on control nodes. The default is 'HighlyAvailable', which represents the behavior operators have in a \"normal\" cluster. The 'SingleReplica' mode will be used in single-node deployments and the operators should not configure the operand for highly-available operation",
+	"infrastructureTopology": "infrastructureTopology expresses the expectations for infrastructure services that do not run on control plane nodes, usually indicated by a node selector for a `role` value other than `master`. The default is 'HighlyAvailable', which represents the behavior operators have in a \"normal\" cluster. The 'SingleReplica' mode will be used in single-node deployments and the operators should not configure the operand for highly-available operation",
 }
 
 func (InfrastructureStatus) SwaggerDoc() map[string]string {