Add continuity check unit test

This test renders all manifests to extract deployable containers' names
and parses values.yaml from the helm chart to make sure that all
containers are represented in the helm chart
under the ResourceRequirements section

Signed-off-by: amaslennikov <[email protected]>

pkg/state/continuity_check_test.go

@@ -0,0 +1,179 @@
+/*
+2023 NVIDIA CORPORATION & AFFILIATES
+
+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.
+*/
+
+package state
+
+import (
+	"bufio"
+	"bytes"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+
+	"github.com/go-logr/logr"
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	"gopkg.in/yaml.v3"
+
+	mellanoxv1alpha1 "github.com/Mellanox/network-operator/api/v1alpha1"
+	"github.com/Mellanox/network-operator/pkg/render"
+	"github.com/Mellanox/network-operator/pkg/utils"
+)
+
+func extractContainerNamesFromHelmChart(path string) ([]string, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	var parsedData map[string]interface{}
+	err = yaml.Unmarshal(uncommentContainerResources(data), &parsedData)
+	if err != nil {
+		return nil, err
+	}
+
+	containerNames := extractContainerNamesFromSubsection(parsedData)
+
+	return containerNames, nil
+}
+
+// uncommentContainerResources iterates through the document and removes '#' comments from containerResources sections
+func uncommentContainerResources(fileData []byte) []byte {
+	var result bytes.Buffer
+	scanner := bufio.NewScanner(bytes.NewReader(fileData))
+	var processNextLines bool
+
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		if strings.TrimSpace(line) == "# containerResources:" {
+			// Remove "# " and set flag to process next lines
+			line = strings.Replace(line, "# ", "", 1)
+			processNextLines = true
+		} else if processNextLines && strings.HasPrefix(strings.TrimSpace(line), "#  ") {
+			// For subsequent lines starting with "#  ", remove "# "
+			line = strings.Replace(line, "# ", "", 1)
+		} else {
+			processNextLines = false
+		}
+
+		result.WriteString(line + "\n")
+	}
+
+	return result.Bytes()
+}
+
+//nolint:gocognit
+func extractContainerNamesFromSubsection(data interface{}) []string {
+	var names []string
+
+	switch v := data.(type) {
+	case []interface{}:
+		for _, item := range v {
+			names = append(names, extractContainerNamesFromSubsection(item)...)
+		}
+	case map[string]interface{}:
+		for key, value := range v {
+			if key == "containerResources" {
+				if resources, ok := value.([]interface{}); ok {
+					for _, resource := range resources {
+						if resMap, ok := resource.(map[string]interface{}); ok {
+							if name, ok := resMap["name"].(string); ok {
+								names = append(names, name)
+							}
+						}
+					}
+				}
+			} else {
+				names = append(names, extractContainerNamesFromSubsection(value)...)
+			}
+		}
+	}
+
+	return names
+}
+
+func extractContainerNamesFromState(manifestsDirectoryPath string, state ManifestRenderer,
+	cr *mellanoxv1alpha1.NicClusterPolicy, logger logr.Logger) ([]string, error) {
+	files, err := utils.GetFilesWithSuffix(manifestsDirectoryPath, render.ManifestFileSuffix...)
+	if err != nil {
+		return nil, err
+	}
+
+	state.SetRenderer(render.NewRenderer(files))
+
+	return ParseContainerNames(state, cr, logger)
+}
+
+var _ = Describe("Continuity check", func() {
+
+	Context("Resource requirements", func() {
+		It("Resource requirements from helm chart should cover all deployable containers", func() {
+			wd, err := os.Getwd()
+			Expect(err).NotTo(HaveOccurred())
+
+			chartPath := filepath.Join(wd, "..", "..", "deployment", "network-operator", "values.yaml")
+
+			namesFromChart, err := extractContainerNamesFromHelmChart(chartPath)
+			Expect(err).NotTo(HaveOccurred())
+
+			var namesFromManifests []string
+
+			cr := &mellanoxv1alpha1.NicClusterPolicy{}
+			cr.Name = "nic-cluster-policy"
+			imageSpec := mellanoxv1alpha1.ImageSpec{Image: "image", Repository: "", Version: "version"}
+			imageSpecWithConfig := mellanoxv1alpha1.ImageSpecWithConfig{ImageSpec: imageSpec}
+			cr.Spec.IBKubernetes = &mellanoxv1alpha1.IBKubernetesSpec{ImageSpec: imageSpec}
+			cr.Spec.OFEDDriver = &mellanoxv1alpha1.OFEDDriverSpec{ImageSpec: imageSpec}
+			cr.Spec.RdmaSharedDevicePlugin = &mellanoxv1alpha1.DevicePluginSpec{ImageSpecWithConfig: imageSpecWithConfig}
+			cr.Spec.SriovDevicePlugin = &mellanoxv1alpha1.DevicePluginSpec{ImageSpecWithConfig: imageSpecWithConfig}
+			cr.Spec.NvIpam = &mellanoxv1alpha1.NVIPAMSpec{ImageSpec: imageSpec}
+			cr.Spec.NicFeatureDiscovery = &mellanoxv1alpha1.NICFeatureDiscoverySpec{ImageSpec: imageSpec}
+			cr.Spec.SecondaryNetwork = &mellanoxv1alpha1.SecondaryNetworkSpec{}
+			cr.Spec.SecondaryNetwork.CniPlugins = &imageSpec
+			cr.Spec.SecondaryNetwork.IpamPlugin = &imageSpec
+			cr.Spec.SecondaryNetwork.IPoIB = &imageSpec
+			cr.Spec.SecondaryNetwork.Multus = &mellanoxv1alpha1.MultusSpec{ImageSpecWithConfig: imageSpecWithConfig}
+
+			stateMap := map[string]ManifestRenderer{
+				"state-ib-kubernetes":                &stateIBKubernetes{},
+				"state-ofed-driver":                  &stateOFED{},
+				"state-rdma-device-plugin":           &stateSharedDp{},
+				"state-sriov-device-plugin":          &stateSriovDp{},
+				"state-nv-ipam-cni":                  &stateNVIPAMCNI{},
+				"state-nic-feature-discovery":        &stateNICFeatureDiscovery{},
+				"state-container-networking-plugins": &stateCNIPlugins{},
+				"state-whereabouts-cni":              &stateWhereaboutsCNI{},
+				"state-ipoib-cni":                    &stateIPoIBCNI{},
+				"state-multus-cni":                   &stateMultusCNI{},
+			}
+
+			for manifestsDirectory, state := range stateMap {
+				names, err := extractContainerNamesFromState(
+					filepath.Join("..", "..", "manifests", manifestsDirectory), state, cr, testLogger)
+				Expect(err).NotTo(HaveOccurred())
+				namesFromManifests = append(namesFromManifests, names...)
+			}
+
+			sort.Strings(namesFromChart)
+			sort.Strings(namesFromManifests)
+
+			Expect(namesFromChart).To(Equal(namesFromManifests))
+
+		})
+	})
+})