diff --git a/templates/test/ci/cluster-template-prow-flatcar-sysext.yaml b/templates/test/ci/cluster-template-prow-flatcar-sysext.yaml
index 088b67ddc3a..2278a93f742 100644
--- a/templates/test/ci/cluster-template-prow-flatcar-sysext.yaml
+++ b/templates/test/ci/cluster-template-prow-flatcar-sysext.yaml
@@ -331,3 +331,76 @@ spec:
     namespace: ${AZURE_CLUSTER_IDENTITY_SECRET_NAMESPACE}
   tenantID: ${AZURE_TENANT_ID}
   type: ServicePrincipal
+---
+apiVersion: addons.cluster.x-k8s.io/v1alpha1
+kind: HelmChartProxy
+metadata:
+  name: calico
+  namespace: default
+spec:
+  chartName: tigera-operator
+  clusterSelector:
+    matchLabels:
+      cni: calico
+  namespace: tigera-operator
+  releaseName: projectcalico
+  repoURL: https://docs.tigera.io/calico/charts
+  valuesTemplate: |-
+    installation:
+      cni:
+        type: Calico
+      calicoNetwork:
+        bgp: Disabled
+        mtu: 1350
+        ipPools:
+        ipPools:{{range $i, $cidr := .Cluster.spec.clusterNetwork.pods.cidrBlocks }}
+        - cidr: {{ $cidr }}
+          encapsulation: VXLAN{{end}}
+      registry: mcr.microsoft.com/oss
+    # Image and registry configuration for the tigera/operator pod.
+    tigeraOperator:
+      image: tigera/operator
+      registry: mcr.microsoft.com/oss
+    calicoctl:
+      image: mcr.microsoft.com/oss/calico/ctl
+  version: ${CALICO_VERSION}
+---
+apiVersion: addons.cluster.x-k8s.io/v1alpha1
+kind: HelmChartProxy
+metadata:
+  name: azuredisk-csi-driver-chart
+  namespace: default
+spec:
+  chartName: azuredisk-csi-driver
+  clusterSelector:
+    matchLabels:
+      azuredisk-csi: "true"
+  namespace: kube-system
+  releaseName: azuredisk-csi-driver-oot
+  repoURL: https://raw.githubusercontent.com/kubernetes-sigs/azuredisk-csi-driver/master/charts
+  valuesTemplate: |-
+    controller:
+      replicas: 1
+      runOnControlPlane: true
+    windows:
+      useHostProcessContainers: {{ hasKey .Cluster.metadata.labels "cni-windows" }}
+---
+apiVersion: addons.cluster.x-k8s.io/v1alpha1
+kind: HelmChartProxy
+metadata:
+  name: cloud-provider-azure-chart-flatcar-sysext
+  namespace: default
+spec:
+  chartName: cloud-provider-azure
+  clusterSelector:
+    matchLabels:
+      cloud-provider: azure-flatcar-sysext
+  releaseName: cloud-provider-azure-oot
+  repoURL: https://raw.githubusercontent.com/kubernetes-sigs/cloud-provider-azure/master/helm/repo
+  valuesTemplate: |
+    infra:
+      clusterName: {{ .Cluster.metadata.name }}
+    cloudControllerManager:
+      clusterCIDR: {{ .Cluster.spec.clusterNetwork.pods.cidrBlocks | join "," }}
+      logVerbosity: 4
+      caCertDir: /usr/share/ca-certificates