Add must_gather tests

Signed-off-by: Mario Fernandez <mariofer@redhat.com>

functests/6_mustgather_testing/mustgather.go

@@ -0,0 +1,201 @@
+package pao_mustgather
+
+import (
+	"archive/tar"
+	"compress/gzip"
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
+
+	testutils "github.com/openshift-kni/performance-addon-operators/functests/utils"
+	testclient "github.com/openshift-kni/performance-addon-operators/functests/utils/client"
+	"github.com/openshift-kni/performance-addon-operators/functests/utils/nodes"
+	"github.com/openshift-kni/performance-addon-operators/functests/utils/profiles"
+	machineconfigv1 "github.com/openshift/machine-config-operator/pkg/apis/machineconfiguration.openshift.io/v1"
+	corev1 "k8s.io/api/core/v1"
+
+	. "github.com/onsi/ginkgo"
+	"github.com/onsi/gomega"
+	. "github.com/onsi/gomega"
+)
+
+const destDir = "must-gather"
+
+var _ = Describe("[rfe_id: 50649] Performance Addon Operator Must Gather", func() {
+	mgContentFolder := ""
+
+	testutils.BeforeAll(func() {
+		destDirContent, err := ioutil.ReadDir(destDir)
+		gomega.Expect(err).NotTo(gomega.HaveOccurred(), "unable to read contents from destDir:%s. error: %w", destDir, err)
+
+		for _, content := range destDirContent {
+			if !content.IsDir() {
+				continue
+			}
+			mgContentFolder = filepath.Join(destDir, content.Name())
+		}
+	})
+
+	Context("with a freshly executed must-gather command", func() {
+		It("Verify Generic cluster resource definitions are captured", func() {
+
+			var genericFiles = []string{
+				"version",
+				"cluster-scoped-resources/config.openshift.io/featuregates/cluster.yaml",
+				"namespaces/openshift-cluster-node-tuning-operator/tuned.openshift.io/tuneds/default.yaml",
+				"namespaces/openshift-cluster-node-tuning-operator/tuned.openshift.io/tuneds/rendered.yaml",
+			}
+
+			By(fmt.Sprintf("Checking Folder: %q\n", mgContentFolder))
+			By("\tLooking for generic files")
+			err := checkfilesExist(genericFiles, mgContentFolder)
+			Expect(err).ToNot(gomega.HaveOccurred())
+		})
+
+		It("Verify PAO cluster resources are captured", func() {
+			profile, _ := profiles.GetByNodeLabels(testutils.NodeSelectorLabels)
+			if profile == nil {
+				Skip("No Performance Profile found")
+			}
+			//replace peformance.yaml for profile.Name when data is generated in the node
+			ClusterSpecificFiles := []string{
+				"cluster-scoped-resources/performance.openshift.io/performanceprofiles/performance.yaml",
+				"cluster-scoped-resources/machineconfiguration.openshift.io/kubeletconfigs/performance-performance.yaml",
+				"namespaces/openshift-cluster-node-tuning-operator/tuned.openshift.io/tuneds/openshift-node-performance-performance.yaml",
+			}
+
+			By(fmt.Sprintf("Checking Folder: %q\n", mgContentFolder))
+			By("\tLooking for generic files")
+			err := checkfilesExist(ClusterSpecificFiles, mgContentFolder)
+			Expect(err).ToNot(gomega.HaveOccurred())
+		})
+
+		It("Verify hardware related information are captured", func() {
+			nodeSpecificFiles := []string{
+				"proc/cpuinfo",
+				"cpu_affinities.json",
+				"dmesg",
+				"irq_affinities.json",
+				"lscpu",
+				"machineinfo.json",
+				"podresources.json",
+				"proc_cmdline",
+				"sysinfo.log",
+			}
+
+			var workerRTNodes []corev1.Node
+
+			workerRTNodes, err := nodes.GetByLabels(testutils.NodeSelectorLabels)
+			Expect(err).ToNot(HaveOccurred())
+
+			workerRTNodes, err = nodes.MatchingOptionalSelector(workerRTNodes)
+			Expect(err).ToNot(HaveOccurred())
+			cnfWorkerNode := workerRTNodes[0].ObjectMeta.Name
+
+			// find the path of sysinfo.tgz of the correct node
+			snapShotName := ""
+			err = filepath.Walk(mgContentFolder,
+				func(path string, info os.FileInfo, err error) error {
+					if err != nil {
+						return err
+					}
+					if !info.IsDir() && info.Name() == "sysinfo.tgz" {
+						if strings.Contains(path, cnfWorkerNode) {
+							snapShotName = path
+						}
+					}
+					return nil
+				})
+			if err != nil {
+				log.Println(err)
+			}
+
+			snapShotPath := filepath.Dir(snapShotName)
+
+			err = Untar(snapShotPath, snapShotName)
+			Expect(err).ToNot(HaveOccurred(), "failed to read the %s: %v", snapShotName, err)
+
+			err = checkfilesExist(nodeSpecificFiles, snapShotPath)
+			Expect(err).ToNot(gomega.HaveOccurred())
+		})
+
+		It("Verify machineconfig resources are captured", func() {
+			mcps := &machineconfigv1.MachineConfigPoolList{}
+			err := testclient.Client.List(context.TODO(), mcps)
+			Expect(err).ToNot(HaveOccurred())
+			mcpFiles := make([]string, len(mcps.Items))
+			for _, item := range mcps.Items {
+				mcpFiles = append(mcpFiles, fmt.Sprintf("cluster-scoped-resources/machineconfiguration.openshift.io/machineconfigpools/%s.yaml", item.Name))
+			}
+			err = checkfilesExist(mcpFiles, mgContentFolder)
+			Expect(err).ToNot(HaveOccurred())
+		})
+	})
+})
+
+func checkfilesExist(listOfFiles []string, path string) error {
+	for _, f := range listOfFiles {
+		file := filepath.Join(path, f)
+		if _, err := os.Stat(file); errors.Is(err, os.ErrNotExist) {
+			return err
+		}
+	}
+	return nil
+}
+
+func Untar(root string, snapshotName string) error {
+	var err error
+	r, err := os.Open(snapshotName)
+	if err != nil {
+		return err
+	}
+	defer r.Close()
+
+	gzr, err := gzip.NewReader(r)
+	if err != nil {
+		return err
+	}
+	defer gzr.Close()
+
+	tr := tar.NewReader(gzr)
+	for {
+		header, err := tr.Next()
+		if err == io.EOF {
+			return nil
+		}
+
+		if err != nil {
+			return err
+		}
+
+		target := filepath.Join(root, header.Name)
+		mode := os.FileMode(header.Mode)
+
+		switch header.Typeflag {
+		case tar.TypeDir:
+			err = os.MkdirAll(target, mode)
+			if err != nil {
+				return err
+			}
+
+		case tar.TypeReg:
+			dst, err := os.OpenFile(target, os.O_CREATE|os.O_RDWR, mode)
+			if err != nil {
+				return err
+			}
+
+			_, err = io.Copy(dst, tr)
+			if err != nil {
+				return err
+			}
+
+			dst.Close()
+		}
+	}
+}

functests/6_mustgather_testing/test_suite_mustgather_test.go

@@ -0,0 +1,61 @@
+package pao_mustgather
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"testing"
+
+	"github.com/onsi/ginkgo"
+	. "github.com/onsi/ginkgo"
+	"github.com/onsi/gomega"
+	. "github.com/onsi/gomega"
+	"github.com/openshift-kni/performance-addon-operators/functests/utils/junit"
+
+	ginkgo_reporters "kubevirt.io/qe-tools/pkg/ginkgo-reporters"
+)
+
+var _ = BeforeSuite(func() {
+	By("Looking for oc tool")
+	ocExec, err := exec.LookPath("oc")
+	if err != nil {
+		fmt.Fprintf(ginkgo.GinkgoWriter, "Unable to find oc executable: %v\n", err)
+		Skip(fmt.Sprintf("unable to find 'oc' executable %v\n", err))
+	}
+
+	mgImage := "quay.io/openshift-kni/performance-addon-operator-must-gather"
+	mgTag := "4.10-snapshot"
+
+	mgImageParam := fmt.Sprintf("--image=%s:%s", mgImage, mgTag)
+	mgDestDirParam := fmt.Sprintf("--dest-dir=%s", destDir)
+
+	cmdline := []string{
+		ocExec,
+		"adm",
+		"must-gather",
+		mgImageParam,
+		mgDestDirParam,
+	}
+	ginkgo.By(fmt.Sprintf("running: %v\n", cmdline))
+
+	cmd := exec.Command(cmdline[0], cmdline[1:]...)
+	cmd.Stderr = ginkgo.GinkgoWriter
+
+	_, err = cmd.Output()
+	gomega.Expect(err).ToNot(gomega.HaveOccurred())
+})
+
+var _ = AfterSuite(func() {
+	os.RemoveAll(destDir)
+})
+
+func TestPaoMustgatherTests(t *testing.T) {
+	RegisterFailHandler(Fail)
+
+	rr := []Reporter{}
+	if ginkgo_reporters.Polarion.Run {
+		rr = append(rr, &ginkgo_reporters.Polarion)
+	}
+	rr = append(rr, junit.NewJUnitReporter("must-gather"))
+	RunSpecsWithDefaultAndCustomReporters(t, "PAO must-gather tests", rr)
+}