test: workerless upgrade

Author: vknabel

Makefile

@@ -147,6 +147,7 @@ test-e2e: manifests generate fmt vet ginkgo
 	rm -rf $(ARTIFACTS)
 
 	$(KUSTOMIZE) build $(E2E_TEMPLATES)/upgrade --load-restrictor LoadRestrictionsNone > $(E2E_TEMPLATES)/cluster-template-upgrade.yaml
+	$(KUSTOMIZE) build $(E2E_TEMPLATES)/upgrade-workerless --load-restrictor LoadRestrictionsNone > $(E2E_TEMPLATES)/cluster-template-upgrade-workerless.yaml
 
 	@METAL_API_URL=$(E2E_METAL_API_URL) \
 	METAL_API_HMAC=$(E2E_METAL_API_HMAC) \

test/e2e/frmwrk/cluster_upgrade_kubernetes_test.go

@@ -55,7 +55,7 @@ var _ = Describe("Upgrade Kubernetes Cluster Version", Ordered, Label("upgrade")
 		cfg.Variables["KUBERNETES_VERSION_UPGRADE_TO"] = toKubernetesVersion
 	})
 
-	Context("rolling upgrade", func() {
+	Context("rolling workerless upgrade", func() {
 		capi_e2e_ClusterUpgradeConformanceSpec(ctx, func() capi_e2e.ClusterUpgradeConformanceSpecInput {
 			Expect(cfg.Variables).NotTo(BeNil(), "E2E config variables map must be initialized")
 			Expect(cfg.Variables).To(HaveKey("CONTROL_PLANE_IP"))
@@ -69,7 +69,7 @@ var _ = Describe("Upgrade Kubernetes Cluster Version", Ordered, Label("upgrade")
 				SkipConformanceTests:     true,
 				ControlPlaneMachineCount: ptr.To[int64](1),
 				WorkerMachineCount:       ptr.To[int64](0),
-				Flavor:                   ptr.To("upgrade"),
+				Flavor:                   ptr.To("upgrade-workerless"),
 				ControlPlaneWaiters:      clusterctl.ControlPlaneWaiters{},
 				InfrastructureProvider:   new(string),
 				PostNamespaceCreated: func(managementClusterProxy framework.ClusterProxy, workloadClusterNamespace string) {

test/e2e/frmwrk/config/capi-e2e-config.yaml

@@ -125,6 +125,7 @@ providers:
       - sourcePath: "../../../../config/clusterctl-templates/cluster-template-calico.yaml"
       - sourcePath: "../../../../config/clusterctl-templates/cluster-template-pre-v1.33.yaml"
       - sourcePath: "../data/clusterctl-templates/cluster-template-upgrade.yaml"
+      - sourcePath: "../data/clusterctl-templates/cluster-template-upgrade-workerless.yaml"
     replacements:
       - old: --metrics-addr=127.0.0.1:8080
         new: --metrics-addr=:8080

test/e2e/frmwrk/data/clusterctl-templates/upgrade-workerless/kustomization.yaml

@@ -0,0 +1,3 @@
+resources:
+  - ../../../../../../config/clusterctl-templates/cluster-template-calico.yaml
+  - ../bases/cluster-template-mt-control-plane-upgrade-to.yaml