Enable controller tests

The controller test suite was disabled due to missing kubebuilder
assets. These are now installed before running the tests.
A simple sanity check test is also added to confirm that envTest is
working.

Author: lentzi90

Makefile

@@ -39,6 +39,7 @@ E2E_DATA_DIR ?= $(REPO_ROOT)/test/e2e/data
 E2E_CONF_PATH  ?= $(E2E_DATA_DIR)/e2e_conf.yaml
 KUBETEST_CONF_PATH ?= $(abspath $(E2E_DATA_DIR)/kubetest/conformance.yaml)
 KUBETEST_FAST_CONF_PATH ?= $(abspath $(E2E_DATA_DIR)/kubetest/conformance-fast.yaml)
+GO_INSTALL := ./scripts/go_install.sh
 
 # Binaries.
 CONTROLLER_GEN := $(TOOLS_BIN_DIR)/controller-gen
@@ -53,6 +54,17 @@ KUSTOMIZE := $(TOOLS_BIN_DIR)/kustomize
 MOCKGEN := $(TOOLS_BIN_DIR)/mockgen
 RELEASE_NOTES := $(TOOLS_BIN_DIR)/release-notes
 
+# Setup-envtest
+SETUP_ENVTEST_VER := v0.0.0-20211110210527-619e6b92dab9
+SETUP_ENVTEST_BIN := setup-envtest
+SETUP_ENVTEST := $(abspath $(TOOLS_BIN_DIR)/$(SETUP_ENVTEST_BIN)-$(SETUP_ENVTEST_VER))
+SETUP_ENVTEST_PKG := sigs.k8s.io/controller-runtime/tools/setup-envtest
+
+# Kubebuilder
+export KUBEBUILDER_ENVTEST_KUBERNETES_VERSION ?= 1.23.3
+export KUBEBUILDER_CONTROLPLANE_START_TIMEOUT ?= 60s
+export KUBEBUILDER_CONTROLPLANE_STOP_TIMEOUT ?= 60s
+
 PATH := $(abspath $(TOOLS_BIN_DIR)):$(PATH)
 export PATH
 export DOCKER_CLI_EXPERIMENTAL=enabled
@@ -116,9 +128,15 @@ E2E_ARGS ?=
 $(ARTIFACTS):
 	mkdir -p $@
 
+ifeq ($(shell go env GOOS),darwin) # Use the darwin/amd64 binary until an arm64 version is available
+  KUBEBUILDER_ASSETS ?= $(shell $(SETUP_ENVTEST) use --use-env -p path --arch amd64 $(KUBEBUILDER_ENVTEST_KUBERNETES_VERSION))
+else
+  KUBEBUILDER_ASSETS ?= $(shell $(SETUP_ENVTEST) use --use-env -p path $(KUBEBUILDER_ENVTEST_KUBERNETES_VERSION))
+endif
+
 .PHONY: test
-test: ## Run tests
-	go test -v ./...
+test: $(SETUP_ENVTEST) ## Run tests
+	KUBEBUILDER_ASSETS="$(KUBEBUILDER_ASSETS)" go test -v ./... $(TEST_ARGS)
 
 # Can be run manually, e.g. via:
 # export OPENSTACK_CLOUD_YAML_FILE="$(pwd)/clouds.yaml"
@@ -167,6 +185,12 @@ managers:
 manager-openstack-infrastructure: ## Build manager binary.
 	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags "${LDFLAGS} -extldflags '-static'" -o $(BIN_DIR)/manager .
 
+$(SETUP_ENVTEST): # Build setup-envtest from tools folder.
+	GOBIN=$(abspath $(TOOLS_BIN_DIR)) $(GO_INSTALL) $(SETUP_ENVTEST_PKG) $(SETUP_ENVTEST_BIN) $(SETUP_ENVTEST_VER)
+
+.PHONY: $(SETUP_ENVTEST_BIN)
+	$(SETUP_ENVTEST_BIN): $(SETUP_ENVTEST) ## Build a local copy of setup-envtest.
+
 ## --------------------------------------
 ## Linting
 ## --------------------------------------

controllers/suite_test.go

@@ -17,13 +17,18 @@ limitations under the License.
 package controllers
 
 import (
+	"context"
 	"path/filepath"
 	"testing"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/client-go/kubernetes/scheme"
 	"k8s.io/client-go/rest"
+	"sigs.k8s.io/cluster-api/test/framework"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/envtest"
 	"sigs.k8s.io/controller-runtime/pkg/envtest/printer"
@@ -41,10 +46,6 @@ var (
 )
 
 func TestAPIs(t *testing.T) {
-	// TODO(sbueringer) controller don't work yet because kubebuilder is not installed correctly
-	// and therefore no etcd is available inside the path
-	t.Skip()
-
 	RegisterFailHandler(Fail)
 
 	RunSpecsWithDefaultAndCustomReporters(t,
@@ -83,3 +84,32 @@ var _ = AfterSuite(func() {
 	err := testEnv.Stop()
 	Expect(err).ToNot(HaveOccurred())
 })
+
+var _ = Describe("EnvTest sanity check", func() {
+	ctx := context.TODO()
+	It("should be able to create a namespace", func() {
+		testNamespace := "capo-test"
+		namespacedName := types.NamespacedName{
+			Name: testNamespace,
+		}
+		namespaceInput := framework.CreateNamespaceInput{
+			Creator: k8sClient,
+			Name:    testNamespace,
+		}
+
+		// Create the namespace
+		namespace := framework.CreateNamespace(ctx, namespaceInput)
+		// Check the result
+		namespaceResult := &corev1.Namespace{}
+		err := k8sClient.Get(ctx, namespacedName, namespaceResult)
+		Expect(err).To(BeNil())
+		Expect(namespaceResult).To(Equal(namespace))
+
+		// Clean up
+		foregroundDeletePropagation := metav1.DeletePropagationForeground
+		err = k8sClient.Delete(ctx, namespace, &client.DeleteOptions{PropagationPolicy: &foregroundDeletePropagation})
+		Expect(err).To(BeNil())
+		// Note: Since the controller-manager is not part of envtest the namespace
+		// will actually stay in "Terminating" state and never be completely gone.
+	})
+})

scripts/go_install.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+# Copyright 2021 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
+
+if [ -z "${1}" ]; then
+  echo "must provide module as first parameter"
+  exit 1
+fi
+
+if [ -z "${2}" ]; then
+  echo "must provide binary name as second parameter"
+  exit 1
+fi
+
+if [ -z "${3}" ]; then
+  echo "must provide version as third parameter"
+  exit 1
+fi
+
+if [ -z "${GOBIN}" ]; then
+  echo "GOBIN is not set. Must set GOBIN to install the bin in a specified directory."
+  exit 1
+fi
+
+rm "${GOBIN}/${2}"* || true
+
+# install the golang module specified as the first argument
+go install -tags tools "${1}@${3}"
+mv "${GOBIN}/${2}" "${GOBIN}/${2}-${3}"
+ln -sf "${GOBIN}/${2}-${3}" "${GOBIN}/${2}"