Add longhorn storage test (#6445)

Signed-off-by: Brooks Newberry <brooks@newberry.com>
pull/7371/head
Brooks Newberry 2023-04-28 11:17:19 -07:00 committed by GitHub
parent 0247794aa9
commit bbda54b332
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 4485 additions and 2 deletions

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@ -162,12 +162,12 @@ func CheckDeployments(deployments []string) error {
return nil
}
func ParsePods(opts metav1.ListOptions) ([]corev1.Pod, error) {
func ParsePods(namespace string, opts metav1.ListOptions) ([]corev1.Pod, error) {
clientSet, err := k8sClient()
if err != nil {
return nil, err
}
pods, err := clientSet.CoreV1().Pods("").List(context.Background(), opts)
pods, err := clientSet.CoreV1().Pods(namespace).List(context.Background(), opts)
if err != nil {
return nil, err
}
@ -188,6 +188,30 @@ func ParseNodes() ([]corev1.Node, error) {
return nodes.Items, nil
}
func GetPod(namespace, name string) (*corev1.Pod, error) {
client, err := k8sClient()
if err != nil {
return nil, err
}
return client.CoreV1().Pods(namespace).Get(context.Background(), name, metav1.GetOptions{})
}
func GetPersistentVolumeClaim(namespace, name string) (*corev1.PersistentVolumeClaim, error) {
client, err := k8sClient()
if err != nil {
return nil, err
}
return client.CoreV1().PersistentVolumeClaims(namespace).Get(context.Background(), name, metav1.GetOptions{})
}
func GetPersistentVolume(name string) (*corev1.PersistentVolume, error) {
client, err := k8sClient()
if err != nil {
return nil, err
}
return client.CoreV1().PersistentVolumes().Get(context.Background(), name, metav1.GetOptions{})
}
func FindStringInCmdAsync(scanner *bufio.Scanner, target string) bool {
for scanner.Scan() {
if strings.Contains(scanner.Text(), target) {

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@ -0,0 +1,154 @@
package longhorn
import (
"fmt"
"os/exec"
"strings"
"testing"
testutil "github.com/k3s-io/k3s/tests/integration"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
var server *testutil.K3sServer
var serverArgs = []string{"--cluster-init"}
var testLock int
var _ = BeforeSuite(func() {
if _, err := exec.LookPath("iscsiadm"); err != nil {
Skip("Test needs open-iscsi to be installed")
} else if !testutil.IsExistingServer() {
var err error
testLock, err = testutil.K3sTestLock()
Expect(err).ToNot(HaveOccurred())
server, err = testutil.K3sStartServer(serverArgs...)
Expect(err).ToNot(HaveOccurred())
}
})
var _ = Describe("longhorn", Ordered, func() {
BeforeEach(func() {
if testutil.IsExistingServer() && !testutil.ServerArgsPresent(serverArgs) {
Skip("Test needs k3s server with: " + strings.Join(serverArgs, " "))
}
})
When("a new cluster is created", func() {
It("starts up with no problems", func() {
Eventually(func() error {
return testutil.K3sDefaultDeployments()
}, "120s", "5s").Should(Succeed())
})
})
When("longhorn is installed", func() {
It("installs components into the longhorn-system namespace", func() {
result, err := testutil.K3sCmd("kubectl apply -f ./testdata/longhorn.yaml")
Expect(err).NotTo(HaveOccurred())
Expect(result).To(ContainSubstring("namespace/longhorn-system created"))
Expect(result).To(ContainSubstring("daemonset.apps/longhorn-manager created"))
Expect(result).To(ContainSubstring("deployment.apps/longhorn-driver-deployer created"))
Expect(result).To(ContainSubstring("deployment.apps/longhorn-recovery-backend created"))
Expect(result).To(ContainSubstring("deployment.apps/longhorn-ui created"))
Expect(result).To(ContainSubstring("deployment.apps/longhorn-conversion-webhook created"))
Expect(result).To(ContainSubstring("deployment.apps/longhorn-admission-webhook created"))
})
It("starts the longhorn pods with no problems", func() {
Eventually(func() error {
pods, err := testutil.ParsePods("longhorn-system", metav1.ListOptions{})
if err != nil {
return err
}
for _, pod := range pods {
if pod.Status.Phase != "Running" && pod.Status.Phase != "Succeeded" {
return fmt.Errorf("pod %s failing", pod.Name)
}
}
return nil
}, "120s", "5s").Should(Succeed())
})
})
When("persistent volume claim is created", func() {
It("creates the pv and pvc", func() {
result, err := testutil.K3sCmd("kubectl create -f ./testdata/pvc.yaml")
Expect(err).NotTo(HaveOccurred())
Expect(result).To(ContainSubstring("persistentvolumeclaim/longhorn-volv-pvc created"))
Eventually(func() error {
pvc, err := testutil.GetPersistentVolumeClaim("default", "longhorn-volv-pvc")
if err != nil {
return fmt.Errorf("failed to get pvc longhorn-volv-pvc")
}
if pvc.Status.Phase != "Bound" {
return fmt.Errorf("pvc longhorn-volv-pvc not bound")
}
pv, err := testutil.GetPersistentVolume(pvc.Spec.VolumeName)
if err != nil {
return fmt.Errorf("failed to get pv %s", pvc.Spec.VolumeName)
}
if pv.Status.Phase != "Bound" {
return fmt.Errorf("pv %s not bound", pv.Name)
}
return nil
}, "300s", "5s").Should(Succeed())
})
It("creates a pod with the pvc", func() {
result, err := testutil.K3sCmd("kubectl create -f ./testdata/pod.yaml")
Expect(err).NotTo(HaveOccurred())
Expect(result).To(ContainSubstring("pod/volume-test created"))
Eventually(func() error {
pod, err := testutil.GetPod("default", "volume-test")
if err != nil {
return fmt.Errorf("failed to get pod volume-test")
}
if pod.Status.Phase != "Running" {
return fmt.Errorf("pod volume-test \"%s\" reason: \"%s\" message \"%s\"", pod.Status.Phase, pod.Status.Reason, pod.Status.Message)
}
return nil
}, "60s", "5s").Should(Succeed())
})
})
When("the pvc is deleted", func() {
It("the pv is deleted according to the default reclaim policy", func() {
result, err := testutil.K3sCmd("kubectl delete pod volume-test")
Expect(err).NotTo(HaveOccurred())
Expect(result).To(ContainSubstring("pod \"volume-test\" deleted"))
result, err = testutil.K3sCmd("kubectl delete pvc longhorn-volv-pvc")
Expect(err).NotTo(HaveOccurred())
Expect(result).To(ContainSubstring("persistentvolumeclaim \"longhorn-volv-pvc\" deleted"))
Eventually(func() error {
result, err = testutil.K3sCmd("kubectl get pv")
if err != nil {
return fmt.Errorf("failed get persistent volumes")
}
if !strings.Contains(result, "No resources found") {
return fmt.Errorf("persistent volumes still exist")
}
return nil
}, "60s", "5s").Should(Succeed())
})
})
})
var failed bool
var _ = AfterEach(func() {
failed = failed || CurrentSpecReport().Failed()
})
var _ = AfterSuite(func() {
if !testutil.IsExistingServer() {
if failed {
testutil.K3sSaveLog(server, false)
}
Expect(testutil.K3sKillServer(server)).To(Succeed())
Expect(testutil.K3sCleanup(testLock, "")).To(Succeed())
}
})
func Test_IntegrationLonghorn(t *testing.T) {
RegisterFailHandler(Fail)
RunSpecs(t, "Longhorn Suite")
}

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@ -0,0 +1,19 @@
apiVersion: v1
kind: Pod
metadata:
name: volume-test
namespace: default
spec:
containers:
- name: volume-test
image: nginx:stable-alpine
imagePullPolicy: IfNotPresent
volumeMounts:
- name: volv
mountPath: /data
ports:
- containerPort: 80
volumes:
- name: volv
persistentVolumeClaim:
claimName: longhorn-volv-pvc

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@ -0,0 +1,11 @@
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: longhorn-volv-pvc
spec:
accessModes:
- ReadWriteOnce
storageClassName: longhorn
resources:
requests:
storage: 1Gi