feat: enable easier flavor creation

Author: devigned

Makefile

@@ -34,6 +34,7 @@ export GO111MODULE=on
 ROOT_DIR:=$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
 TOOLS_DIR := hack/tools
 TOOLS_BIN_DIR := $(TOOLS_DIR)/bin
+TEMPLATES_DIR := $(ROOT_DIR)/templates
 BIN_DIR := bin
 RELEASE_NOTES_BIN := bin/release-notes
 
@@ -69,6 +70,8 @@ RBAC_ROOT ?= $(MANIFEST_ROOT)/rbac
 # Allow overriding the imagePullPolicy
 PULL_POLICY ?= Always
 
+CLUSTER_TEMPLATE ?= cluster-template.yaml
+
 ## --------------------------------------
 ## Help
 ## --------------------------------------
@@ -165,6 +168,7 @@ modules: ## Runs go mod to ensure proper vendoring.
 generate: ## Generate code
 	$(MAKE) generate-go
 	$(MAKE) generate-manifests
+	$(MAKE) generate-flavors
 
 .PHONY: generate-go
 generate-go: $(CONTROLLER_GEN) $(MOCKGEN) $(CONVERSION_GEN) ## Runs Go related generate targets
@@ -191,6 +195,10 @@ generate-manifests: $(CONTROLLER_GEN) ## Generate manifests e.g. CRD, RBAC etc.
 		output:rbac:dir=$(RBAC_ROOT) \
 		rbac:roleName=manager-role
 
+.PHONY: generate-flavors ## Generate template flavors
+generate-flavors: $(KUSTOMIZE)
+	./hack/gen-flavors.sh
+
 ## --------------------------------------
 ## Docker
 ## --------------------------------------
@@ -260,11 +268,16 @@ release: clean-release  ## Builds and push container images using the latest git
 	$(MAKE) set-manifest-image MANIFEST_IMG=$(PROD_REGISTRY)/$(IMAGE_NAME) MANIFEST_TAG=$(RELEASE_TAG)
 	$(MAKE) set-manifest-pull-policy PULL_POLICY=IfNotPresent
 	$(MAKE) release-manifests
+	$(MAKE) release-templates
 
 .PHONY: release-manifests
 release-manifests: $(KUSTOMIZE) $(RELEASE_DIR) ## Builds the manifests to publish with a release
 	kustomize build config > $(RELEASE_DIR)/infrastructure-components.yaml
 
+.PHONY: release-templates
+release-templates: $(RELEASE_DIR)
+	cp templates/cluster-template* $(RELEASE_DIR)/
+
 .PHONY: release-binary
 release-binary: $(RELEASE_DIR)
 	docker run \
@@ -327,7 +340,7 @@ create-management-cluster: $(KUSTOMIZE) $(ENVSUBST)
 .PHONY: create-workload-cluster
 create-workload-cluster: $(KUSTOMIZE) $(ENVSUBST)
 	# Create workload Cluster.
-	$(KUSTOMIZE) build templates | $(ENVSUBST) | kubectl apply -f -
+	$(ENVSUBST) < $(TEMPLATES_DIR)/$(CLUSTER_TEMPLATE) | kubectl apply -f -
 
 	# Wait for the kubeconfig to become available.
 	timeout 300 bash -c "while ! kubectl get secrets | grep $(CLUSTER_NAME)-kubeconfig; do sleep 1; done"

hack/create-dev-cluster.sh

@@ -43,6 +43,7 @@ export AZURE_CONTROL_PLANE_MACHINE_TYPE="${CONTROL_PLANE_MACHINE_TYPE:-Standard_
 export AZURE_NODE_MACHINE_TYPE="${NODE_MACHINE_TYPE:-Standard_D2s_v3}"
 export WORKER_MACHINE_COUNT=${WORKER_MACHINE_COUNT:-2}
 export KUBERNETES_VERSION="${KUBERNETES_VERSION:-v1.17.4}"
+export TEMPLATE_PATH="${TEMPLATE_PATH:-cluster-template.yaml}"
 
 # Generate SSH key.
 SSH_KEY_FILE=${SSH_KEY_FILE:-""}

hack/gen-flavors.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+# Copyright 2014 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+#set -o verbose
+
+root=$(dirname "${BASH_SOURCE[0]}")/..
+kustomize="${root}/hack/tools/bin/kustomize"
+flavors_dir="${root}/templates/flavors/"
+test_dir="${root}/templates/test/"
+
+rm "${root}/templates/cluster-template"*
+find "${flavors_dir}"* -maxdepth 0 -type d -maxdepth 0 -print0 | xargs -0 -I {} basename {} | grep -v base | xargs -I {} sh -c "${kustomize} build ${flavors_dir}{} > ${root}/templates/cluster-template-{}.yaml"
+# move the default template to the default file expected by clusterctl
+mv "${root}/templates/cluster-template-default.yaml" "${root}/templates/cluster-template.yaml"
+
+rm -f "${test_dir}cluster-template"*
+find "${test_dir}"* -maxdepth 0 -type d -maxdepth 0 -print0 | xargs -0 -I {} basename {} | xargs -I {} sh -c "${kustomize} build ${test_dir}{} > ${test_dir}cluster-template-{}.yaml"

scripts/ci-conformance.sh

@@ -40,22 +40,6 @@ random-string() {
     cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w ${1:-32} | head -n 1
 }
 
-# generate manifests needed for creating the Azure cluster to run the tests
-add_kustomize_patch() {
-    if ! grep -i -wq "patchesStrategicMerge" "templates/kustomization.yaml"; then
-        echo "patchesStrategicMerge:" >> "templates/kustomization.yaml"
-    fi
-    if ! grep -i -wq "conformance-tags" "templates/kustomization.yaml"; then
-        echo "- conformance-tags.yaml" >> "templates/kustomization.yaml"
-    fi
-    # Enable the bits to inject a script that can pull newer versions of kubernetes
-    if [[ -n ${CI_VERSION:-} || -n ${USE_CI_ARTIFACTS:-} ]]; then
-        if ! grep -i -wq "ci-version" "templates/kustomization.yaml"; then
-            echo "- ci-version.yaml" >> "templates/kustomization.yaml"
-        fi
-    fi
-}
-
 # build Kubernetes E2E binaries
 build_k8s() {
     # possibly enable bazel build caching before building kubernetes
@@ -85,6 +69,13 @@ build_k8s() {
 }
 
 create_cluster() {
+    # export cluster template which contains the manifests needed for creating the Azure cluster to run the tests
+    if [[ -n ${CI_VERSION:-} || -n ${USE_CI_ARTIFACTS:-} ]]; then
+        export CLUSTER_TEMPLATE="test/cluster-template-conformance-ci-version"
+    else
+        export CLUSTER_TEMPLATE="test/cluster-template-conformance"
+    fi
+
     export CLUSTER_NAME="capz-conformance-$(head /dev/urandom | LC_ALL=C tr -dc a-z0-9 | head -c 6 ; echo '')"
     # Conformance test suite needs a cluster with at least 2 nodes
     export CONTROL_PLANE_MACHINE_COUNT=${CONTROL_PLANE_MACHINE_COUNT:-3}
@@ -163,7 +154,6 @@ mkdir -p "${ARTIFACTS}/logs"
 
 # create cluster
 if [[ -z "${SKIP_CREATE_CLUSTER:-}" ]]; then
-    add_kustomize_patch
     create_cluster
 fi