⚠️ Stop serving v1alpha4 API Versions

Makefile

@@ -504,15 +504,11 @@ generate-modules: ## Run go mod tidy to ensure modules are up to date
 	cd $(TEST_DIR); go mod tidy
 
 .PHONY: generate-e2e-templates
-generate-e2e-templates: $(KUSTOMIZE) $(addprefix generate-e2e-templates-, v0.4 v1.0 v1.3 v1.4 main) ## Generate cluster templates for all versions
+generate-e2e-templates: $(KUSTOMIZE) $(addprefix generate-e2e-templates-, v1.0 v1.3 v1.4 main) ## Generate cluster templates for all versions
 
 DOCKER_TEMPLATES := test/e2e/data/infrastructure-docker
 INMEMORY_TEMPLATES := test/e2e/data/infrastructure-inmemory
 
-.PHONY: generate-e2e-templates-v0.4
-generate-e2e-templates-v0.4: $(KUSTOMIZE)
-	$(KUSTOMIZE) build $(DOCKER_TEMPLATES)/v0.4/cluster-template --load-restrictor LoadRestrictionsNone > $(DOCKER_TEMPLATES)/v0.4/cluster-template.yaml
-
 .PHONY: generate-e2e-templates-v1.0
 generate-e2e-templates-v1.0: $(KUSTOMIZE)
 	$(KUSTOMIZE) build $(DOCKER_TEMPLATES)/v1.0/cluster-template --load-restrictor LoadRestrictionsNone > $(DOCKER_TEMPLATES)/v1.0/cluster-template.yaml

api/v1alpha4/cluster_types.go

@@ -276,6 +276,7 @@ func (v APIEndpoint) String() string {
 // ANCHOR_END: APIEndpoint
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=clusters,shortName=cl,scope=Namespaced,categories=cluster-api
 // +kubebuilder:subresource:status

api/v1alpha4/clusterclass_types.go

@@ -22,6 +22,7 @@ import (
 )
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=clusterclasses,shortName=cc,scope=Namespaced,categories=cluster-api
 // +kubebuilder:printcolumn:name="Age",type="date",JSONPath=".metadata.creationTimestamp",description="Time duration since creation of ClusterClass"

api/v1alpha4/machine_types.go

@@ -234,6 +234,7 @@ type Bootstrap struct {
 // ANCHOR_END: Bootstrap
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=machines,shortName=ma,scope=Namespaced,categories=cluster-api
 // +kubebuilder:subresource:status

api/v1alpha4/machinedeployment_types.go

@@ -270,6 +270,7 @@ func (md *MachineDeploymentStatus) GetTypedPhase() MachineDeploymentPhase {
 }
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=machinedeployments,shortName=md,scope=Namespaced,categories=cluster-api
 // +kubebuilder:subresource:status

api/v1alpha4/machinehealthcheck_types.go

@@ -125,6 +125,7 @@ type MachineHealthCheckStatus struct {
 // ANCHOR_END: MachineHealthCheckStatus
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=machinehealthchecks,shortName=mhc;mhcs,scope=Namespaced,categories=cluster-api
 // +kubebuilder:subresource:status

api/v1alpha4/machineset_types.go

@@ -195,6 +195,7 @@ func (m *MachineSet) Validate() field.ErrorList {
 }
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=machinesets,shortName=ms,scope=Namespaced,categories=cluster-api
 // +kubebuilder:subresource:status

bootstrap/kubeadm/api/v1alpha4/kubeadmconfig_types.go

@@ -124,6 +124,7 @@ type KubeadmConfigStatus struct {
 }
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=kubeadmconfigs,scope=Namespaced,categories=cluster-api
 // +kubebuilder:subresource:status

bootstrap/kubeadm/api/v1alpha4/kubeadmconfigtemplate_types.go

@@ -31,6 +31,7 @@ type KubeadmConfigTemplateResource struct {
 }
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=kubeadmconfigtemplates,scope=Namespaced,categories=cluster-api
 // +kubebuilder:printcolumn:name="Age",type="date",JSONPath=".metadata.creationTimestamp",description="Time duration since creation of KubeadmConfigTemplate"

controlplane/kubeadm/api/v1alpha4/kubeadm_control_plane_types.go

@@ -198,6 +198,7 @@ type KubeadmControlPlaneStatus struct {
 }
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=kubeadmcontrolplanes,shortName=kcp,scope=Namespaced,categories=cluster-api
 // +kubebuilder:subresource:status

controlplane/kubeadm/api/v1alpha4/kubeadmcontrolplanetemplate_types.go

@@ -26,6 +26,7 @@ type KubeadmControlPlaneTemplateSpec struct {
 }
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=kubeadmcontrolplanetemplates,scope=Namespaced,categories=cluster-api
 // +kubebuilder:printcolumn:name="Age",type="date",JSONPath=".metadata.creationTimestamp",description="Time duration since creation of KubeadmControlPlaneTemplate"

docs/book/src/SUMMARY.md

@@ -90,6 +90,7 @@
           - [v1.2 to v1.3](./developer/providers/migrations/v1.2-to-v1.3.md)
           - [v1.3 to v1.4](./developer/providers/migrations/v1.3-to-v1.4.md)
           - [v1.4 to v1.5](./developer/providers/migrations/v1.4-to-v1.5.md)
+          - [v1.5 to v1.6](./developer/providers/migrations/v1.5-to-v1.6.md)
         - [Provider contracts](./developer/providers/contracts.md)
           - [Cluster Infrastructure](./developer/providers/cluster-infrastructure.md)
           - [Machine Infrastructure](./developer/providers/machine-infrastructure.md)

docs/book/src/clusterctl/commands/upgrade.md

@@ -83,11 +83,10 @@ Cluster API only tests a subset of possible clusterctl upgrade paths as otherwis
 Untested upgrade paths are not blocked by clusterctl and should work in general, they are just not tested. Users 
 intending to use an upgrade path not tested by us should do their own validation to ensure the operation works correctly.
 
-The following is an example of the tested upgrade paths while v1.5 is being developed:
+The following is an example of the tested upgrade paths while v1.6 is being developed:
 
 | From | To     | Note                                                                                                                                                                     |
 |------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| v0.4 | latest | v0.4 is the latest supported minor release with the v1alpha4 contract (v0.4 is EOL since 2022-04-06). This test will be removed once the v1alpha4 apiVersion is removed. |
 | v1.0 | latest | v1.0 is the first release with the v1beta1 contract.                                                                                                                     |
 | v1.3 | latest | v1.3 is a currently supported release. This test will be removed when v1.5 is released and a new test for v1.5 is added.                                                 |
 | v1.4 | latest | v1.4 is a currently supported release. This test will be removed when v1.6 is released and a new test for v1.6 is added.                                                 |

docs/book/src/developer/providers/migrations/v1.5-to-v1.6.md

@@ -0,0 +1,33 @@
+# Cluster API v1.5 compared to v1.6
+
+This document provides an overview over relevant changes between Cluster API v1.5 and v1.6 for
+maintainers of providers and consumers of our Go API.
+
+## Go version
+
+- The Go version used by Cluster API is Go 1.20.x
+
+## Dependencies
+
+**Note**: Only the most relevant dependencies are listed, `k8s.io/` and `ginkgo`/`gomega` dependencies in Cluster API are kept in sync with the versions used by `sigs.k8s.io/controller-runtime`.
+
+- sigs.k8s.io/kind: v0.20.x
+- sigs.k8s.io/controller-runtime: v0.15.x
+- sigs.k8s.io/controller-tools: v0.12.x
+
+## Changes by Kind
+
+### Deprecation
+
+### Removals
+
+- API version `v1alpha4` is not served in v1.6 (users can enable it manually in case they are lagging behind with deprecation cycles). Important: `v1alpha4` will be completely removed in 1.7.
+
+### API Changes
+
+
+### Other
+
+
+### Suggested changes for providers
+

docs/release/release-tasks.md

@@ -22,6 +22,7 @@ This document details the responsibilities and tasks for each role in the releas
       - [Prepare main branch for development of the new release](#prepare-main-branch-for-development-of-the-new-release)
       - [Create a new GitHub milestone for the next release](#create-a-new-github-milestone-for-the-next-release)
       - [\[Track\] Remove previously deprecated code](#track-remove-previously-deprecated-code)
+      - 
       - [\[Track\] Bump dependencies](#track-bump-dependencies)
       - [Create a release branch](#create-a-release-branch)
       - [\[Continuously\] Maintain the GitHub release milestone](#continuously-maintain-the-github-release-milestone)
@@ -94,7 +95,6 @@ is used for e.g. local development and e2e tests. We also modify tests so that t
 This comes down to changing occurrences of the old version to the new version, e.g. `v1.3` to `v1.4`:
 1. Setup E2E tests for the new release:
    1. Goal is that we have clusterctl upgrade tests for the latest stable versions of each contract / for each supported branch. For `v1.5` this means:
-      * v1alpha4: `v0.4`
       * v1beta1: `v1.0`, `v1.3`, `v1.4` (will change with each new release)
    2. Update providers in `docker.yaml`:
        1. Add a new `v1.4.0` entry.

exp/addons/api/v1alpha4/clusterresourceset_types.go

@@ -112,6 +112,7 @@ func (m *ClusterResourceSet) SetConditions(conditions clusterv1alpha4.Conditions
 }
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=clusterresourcesets,scope=Namespaced,categories=cluster-api
 // +kubebuilder:subresource:status

exp/addons/api/v1alpha4/clusterresourcesetbinding_types.go

@@ -101,6 +101,7 @@ func (c *ClusterResourceSetBinding) DeleteBinding(clusterResourceSet *ClusterRes
 }
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=clusterresourcesetbindings,scope=Namespaced,categories=cluster-api
 // +kubebuilder:subresource:status

exp/api/v1alpha4/machinepool_types.go

@@ -199,6 +199,7 @@ func (m *MachinePoolStatus) GetTypedPhase() MachinePoolPhase {
 }
 
 // +kubebuilder:object:root=true
+// +kubebuilder:unservedversion
 // +kubebuilder:deprecatedversion
 // +kubebuilder:resource:path=machinepools,shortName=mp,scope=Namespaced,categories=cluster-api
 // +kubebuilder:subresource:status

test/e2e/clusterctl_upgrade_test.go

@@ -26,37 +26,6 @@ import (
 	"sigs.k8s.io/cluster-api/test/framework"
 )
 
-var _ = Describe("When testing clusterctl upgrades (v0.4=>current)", func() {
-	ClusterctlUpgradeSpec(ctx, func() ClusterctlUpgradeSpecInput {
-		return ClusterctlUpgradeSpecInput{
-			E2EConfig:                 e2eConfig,
-			ClusterctlConfigPath:      clusterctlConfigPath,
-			BootstrapClusterProxy:     bootstrapClusterProxy,
-			ArtifactFolder:            artifactFolder,
-			SkipCleanup:               skipCleanup,
-			InfrastructureProvider:    pointer.String("docker"),
-			InitWithBinary:            "https://github.com/kubernetes-sigs/cluster-api/releases/download/v0.4.8/clusterctl-{OS}-{ARCH}",
-			InitWithProvidersContract: "v1alpha4",
-			// NOTE: If this version is changed here the image and SHA must also be updated in all DockerMachineTemplates in `test/data/infrastructure-docker/v0.4/bases.
-			InitWithKubernetesVersion: "v1.23.17",
-			WorkloadKubernetesVersion: "v1.23.17",
-			MgmtFlavor:                "topology",
-			WorkloadFlavor:            "",
-			// This check ensures that ownerReference apiVersions are updated for all types after the upgrade.
-			PostUpgrade: func(proxy framework.ClusterProxy, namespace, clusterName string) {
-				framework.ValidateOwnerReferencesOnUpdate(proxy, namespace,
-					framework.CoreOwnerReferenceAssertion,
-					framework.ExpOwnerReferenceAssertions,
-					framework.DockerInfraOwnerReferenceAssertions,
-					framework.KubeadmBootstrapOwnerReferenceAssertions,
-					framework.KubeadmControlPlaneOwnerReferenceAssertions,
-					framework.KubernetesReferenceAssertions,
-				)
-			},
-		}
-	})
-})
-
 var _ = Describe("When testing clusterctl upgrades (v1.0=>current)", func() {
 	ClusterctlUpgradeSpec(ctx, func() ClusterctlUpgradeSpecInput {
 		return ClusterctlUpgradeSpecInput{