[release-1.6] 🐛 Restore v1alpha3/v1alpha4 conversion to fix SSA issue & add e2e test coverage

.golangci.yml

@@ -7,6 +7,8 @@ run:
   skip-files:
     - "zz_generated.*\\.go$"
     - "vendored_openapi\\.go$"
+    # We don't want to invest time to fix new linter findings in old API types.
+    - "internal/apis/.*"
   allow-parallel-runners: true
 
 linters:
@@ -115,26 +117,36 @@ linters-settings:
       - pkg: sigs.k8s.io/controller-runtime
         alias: ctrl
       # CABPK
+      - pkg: sigs.k8s.io/cluster-api/internal/apis/bootstrap/kubeadm/v1alpha3
+        alias: bootstrapv1alpha3
       - pkg: sigs.k8s.io/cluster-api/bootstrap/kubeadm/api/v1alpha4
         alias: bootstrapv1alpha4
       - pkg: sigs.k8s.io/cluster-api/bootstrap/kubeadm/api/v1beta1
         alias: bootstrapv1
       # KCP
+      - pkg: sigs.k8s.io/cluster-api/internal/apis/controlplane/kubeadm/v1alpha3
+        alias: controlplanev1alpha3
       - pkg: sigs.k8s.io/cluster-api/controlplane/kubeadm/api/v1alpha4
         alias: controlplanev1alpha4
       - pkg: sigs.k8s.io/cluster-api/controlplane/kubeadm/api/v1beta1
         alias: controlplanev1
       # CAPI
+      - pkg: sigs.k8s.io/cluster-api/internal/apis/core/v1alpha3
+        alias: clusterv1alpha3
       - pkg: sigs.k8s.io/cluster-api/api/v1alpha4
         alias: clusterv1alpha4
       - pkg: sigs.k8s.io/cluster-api/api/v1beta1
         alias: clusterv1
       # CAPI exp
+      - pkg: sigs.k8s.io/cluster-api/internal/apis/core/exp/v1alpha3
+        alias: expv1alpha3
       - pkg: sigs.k8s.io/cluster-api/exp/api/v1alpha4
         alias: expv1alpha4
       - pkg: sigs.k8s.io/cluster-api/exp/api/v1beta1
         alias: expv1
       # CAPI exp addons
+      - pkg: sigs.k8s.io/cluster-api/internal/apis/core/exp/addons/v1alpha3
+        alias: addonsv1alpha3
       - pkg: sigs.k8s.io/cluster-api/exp/addons/api/v1alpha4
         alias: addonsv1alpha4
       - pkg: sigs.k8s.io/cluster-api/exp/addons/api/v1beta1
@@ -158,11 +170,15 @@ linters-settings:
       - pkg: sigs.k8s.io/cluster-api/internal/webhooks/runtime
         alias: runtimewebhooks
       # CAPD
+      - pkg: sigs.k8s.io/cluster-api/test/infrastructure/docker/api/v1alpha3
+        alias: infrav1alpha3
       - pkg: sigs.k8s.io/cluster-api/test/infrastructure/docker/api/v1alpha4
         alias: infrav1alpha4
       - pkg: sigs.k8s.io/cluster-api/test/infrastructure/docker/api/v1beta1
         alias: infrav1
       # CAPD exp
+      - pkg: sigs.k8s.io/cluster-api/test/infrastructure/docker/exp/api/v1alpha3
+        alias: infraexpv1alpha3
       - pkg: sigs.k8s.io/cluster-api/test/infrastructure/docker/exp/api/v1alpha4
         alias: infraexpv1alpha4
       - pkg: sigs.k8s.io/cluster-api/test/infrastructure/docker/exp/api/v1beta1
@@ -226,7 +242,7 @@ issues:
   # should be removed as the referenced deprecated types are removed from the project.
   - linters:
     - staticcheck
-    text: "SA1019: (clusterv1alpha4.*) is deprecated: This type will be removed in one of the next releases."
+    text: "SA1019: (clusterv1alpha3.*|clusterv1alpha4.*) is deprecated: This type will be removed in one of the next releases."
   - linters:
     - revive
     text: "exported: exported method .*\\.(Reconcile|SetupWithManager|SetupWebhookWithManager) should have comment or be unexported"

Makefile

@@ -280,6 +280,7 @@ generate-manifests-core: $(CONTROLLER_GEN) $(KUSTOMIZE) ## Generate manifests e.
 	$(CONTROLLER_GEN) \
 		paths=./ \
 		paths=./api/... \
+		paths=./internal/apis/core/... \
 		paths=./internal/controllers/... \
 		paths=./internal/webhooks/... \
 		paths=./$(EXP_DIR)/api/... \
@@ -311,6 +312,7 @@ generate-manifests-kubeadm-bootstrap: $(CONTROLLER_GEN) ## Generate manifests e.
 		paths=./bootstrap/kubeadm/api/... \
 		paths=./bootstrap/kubeadm/internal/controllers/... \
 		paths=./bootstrap/kubeadm/internal/webhooks/... \
+		paths=./internal/apis/bootstrap/kubeadm/... \
 		crd:crdVersions=v1 \
 		rbac:roleName=manager-role \
 		output:crd:dir=./bootstrap/kubeadm/config/crd/bases \
@@ -326,6 +328,7 @@ generate-manifests-kubeadm-control-plane: $(CONTROLLER_GEN) ## Generate manifest
 		paths=./controlplane/kubeadm/api/... \
 		paths=./controlplane/kubeadm/internal/controllers/... \
 		paths=./controlplane/kubeadm/internal/webhooks/... \
+		paths=./internal/apis/controlplane/kubeadm/... \
 		crd:crdVersions=v1 \
 		rbac:roleName=manager-role \
 		output:crd:dir=./controlplane/kubeadm/config/crd/bases \
@@ -438,19 +441,24 @@ generate-go-conversions-core: ## Run all generate-go-conversions-core-* targets
 
 .PHONY: generate-go-conversions-core-api
 generate-go-conversions-core-api: $(CONVERSION_GEN) ## Generate conversions go code for core api
-	$(MAKE) clean-generated-conversions SRC_DIRS="./api/v1alpha4"
+	$(MAKE) clean-generated-conversions SRC_DIRS="./internal/apis/core/v1alpha3,./api/v1alpha4"
 	$(CONVERSION_GEN) \
+		--input-dirs=./internal/apis/core/v1alpha3 \
 		--input-dirs=./api/v1alpha4 \
 		--build-tag=ignore_autogenerated_core \
 		--output-file-base=zz_generated.conversion $(CONVERSION_GEN_OUTPUT_BASE) \
 		--go-header-file=./hack/boilerplate/boilerplate.generatego.txt
 
 .PHONY: generate-go-conversions-core-exp
 generate-go-conversions-core-exp: $(CONVERSION_GEN) ## Generate conversions go code for core exp
-	$(MAKE) clean-generated-conversions SRC_DIRS="./$(EXP_DIR)/api/v1alpha4,./$(EXP_DIR)/addons/api/v1alpha4"
+	$(MAKE) clean-generated-conversions SRC_DIRS="./internal/apis/core/exp/v1alpha3,./internal/apis/core/exp/addons/v1alpha3,./$(EXP_DIR)/api/v1alpha4,./$(EXP_DIR)/addons/api/v1alpha4"
 	$(CONVERSION_GEN) \
+		--input-dirs=./internal/apis/core/exp/v1alpha3 \
 		--input-dirs=./$(EXP_DIR)/api/v1alpha4 \
+		--input-dirs=./internal/apis/core/exp/addons/v1alpha3 \
 		--input-dirs=./$(EXP_DIR)/addons/api/v1alpha4 \
+		--build-tag=ignore_autogenerated_core_exp \
+		--extra-peer-dirs=sigs.k8s.io/cluster-api/internal/apis/core/v1alpha3 \
 		--extra-peer-dirs=sigs.k8s.io/cluster-api/api/v1alpha4 \
 		--output-file-base=zz_generated.conversion $(CONVERSION_GEN_OUTPUT_BASE) \
 		--go-header-file=./hack/boilerplate/boilerplate.generatego.txt
@@ -460,6 +468,7 @@ generate-go-conversions-core-exp-ipam: $(CONVERSION_GEN) ## Generate conversions
 	$(MAKE) clean-generated-conversions SRC_DIRS="./$(EXP_DIR)/ipam/api/v1alpha1"
 	$(CONVERSION_GEN) \
 		--input-dirs=./$(EXP_DIR)/ipam/api/v1alpha1 \
+		--build-tag=ignore_autogenerated_core_exp_ipam \
 		--output-file-base=zz_generated.conversion $(CONVERSION_GEN_OUTPUT_BASE) \
 		--go-header-file=./hack/boilerplate/boilerplate.generatego.txt
 
@@ -469,16 +478,18 @@ generate-go-conversions-core-runtime: $(CONVERSION_GEN) ## Generate conversions
 	$(CONVERSION_GEN) \
 		--input-dirs=./internal/runtime/test/v1alpha1 \
 		--input-dirs=./internal/runtime/test/v1alpha2 \
-		--build-tag=ignore_autogenerated_runtime \
+		--build-tag=ignore_autogenerated_core_runtime \
 		--output-file-base=zz_generated.conversion $(CONVERSION_GEN_OUTPUT_BASE) \
 		--go-header-file=./hack/boilerplate/boilerplate.generatego.txt
 
 .PHONY: generate-go-conversions-kubeadm-bootstrap
 generate-go-conversions-kubeadm-bootstrap: $(CONVERSION_GEN) ## Generate conversions go code for kubeadm bootstrap
-	$(MAKE) clean-generated-conversions SRC_DIRS="./bootstrap/kubeadm/api"
+	$(MAKE) clean-generated-conversions SRC_DIRS="./bootstrap/kubeadm/api,./internal/apis/bootstrap/kubeadm"
 	$(CONVERSION_GEN) \
+		--input-dirs=./internal/apis/bootstrap/kubeadm/v1alpha3 \
 		--input-dirs=./bootstrap/kubeadm/api/v1alpha4 \
 		--build-tag=ignore_autogenerated_kubeadm_bootstrap \
+		--extra-peer-dirs=sigs.k8s.io/cluster-api/internal/apis/core/v1alpha3 \
 		--extra-peer-dirs=sigs.k8s.io/cluster-api/api/v1alpha4 \
 		--output-file-base=zz_generated.conversion $(CONVERSION_GEN_OUTPUT_BASE) \
 		--go-header-file=./hack/boilerplate/boilerplate.generatego.txt
@@ -492,21 +503,27 @@ generate-go-conversions-kubeadm-bootstrap: $(CONVERSION_GEN) ## Generate convers
 
 .PHONY: generate-go-conversions-kubeadm-control-plane
 generate-go-conversions-kubeadm-control-plane: $(CONVERSION_GEN) ## Generate conversions go code for kubeadm control plane
-	$(MAKE) clean-generated-conversions SRC_DIRS="./controlplane/kubeadm/api"
+	$(MAKE) clean-generated-conversions SRC_DIRS="./controlplane/kubeadm/api,./internal/apis/controlplane/kubeadm"
 	$(CONVERSION_GEN) \
+		--input-dirs=./internal/apis/controlplane/kubeadm/v1alpha3 \
 		--input-dirs=./controlplane/kubeadm/api/v1alpha4 \
 		--build-tag=ignore_autogenerated_kubeadm_controlplane \
+		--extra-peer-dirs=sigs.k8s.io/cluster-api/internal/apis/core/v1alpha3 \
 		--extra-peer-dirs=sigs.k8s.io/cluster-api/api/v1alpha4 \
+		--extra-peer-dirs=sigs.k8s.io/cluster-api/internal/apis/bootstrap/kubeadm/v1alpha3 \
 		--extra-peer-dirs=sigs.k8s.io/cluster-api/bootstrap/kubeadm/api/v1alpha4 \
 		--output-file-base=zz_generated.conversion $(CONVERSION_GEN_OUTPUT_BASE) \
 		--go-header-file=./hack/boilerplate/boilerplate.generatego.txt
 
 .PHONY: generate-go-conversions-docker-infrastructure
 generate-go-conversions-docker-infrastructure: $(CONVERSION_GEN) ## Generate conversions go code for docker infrastructure provider
 	cd $(CAPD_DIR); $(CONVERSION_GEN) \
+		--input-dirs=./api/v1alpha3 \
 		--input-dirs=./api/v1alpha4 \
+		--input-dirs=./$(EXP_DIR)/api/v1alpha3 \
 		--input-dirs=./$(EXP_DIR)/api/v1alpha4 \
 		--build-tag=ignore_autogenerated_capd \
+		--extra-peer-dirs=sigs.k8s.io/cluster-api/internal/apis/core/v1alpha3 \
 		--extra-peer-dirs=sigs.k8s.io/cluster-api/api/v1alpha4 \
 		--output-file-base=zz_generated.conversion $(CONVERSION_GEN_OUTPUT_BASE_CAPD) \
 		--go-header-file=../../../hack/boilerplate/boilerplate.generatego.txt
@@ -544,11 +561,19 @@ generate-doctoc:
 	TRACE=$(TRACE) ./hack/generate-doctoc.sh
 
 .PHONY: generate-e2e-templates
-generate-e2e-templates: $(KUSTOMIZE) $(addprefix generate-e2e-templates-, v1.0 v1.4 v1.5 main) ## Generate cluster templates for all versions
+generate-e2e-templates: $(KUSTOMIZE) $(addprefix generate-e2e-templates-, v0.3 v0.4 v1.0 v1.4 v1.5 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-v0.3
+generate-e2e-templates-v0.3: $(KUSTOMIZE)
+	$(KUSTOMIZE) build $(DOCKER_TEMPLATES)/v0.3/cluster-template --load-restrictor LoadRestrictionsNone > $(DOCKER_TEMPLATES)/v0.3/cluster-template.yaml
+
+.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