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Merge pull request vmware-tanzu#4068 from ywk253100/210824_e2e_cli
Install/uninstall velero by CLI in the E2E test case
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/* | ||
Copyright the Velero contributors. | ||
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. | ||
*/ | ||
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package e2e | ||
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import ( | ||
"bytes" | ||
"context" | ||
"encoding/json" | ||
"fmt" | ||
"io/ioutil" | ||
"os" | ||
"os/exec" | ||
"time" | ||
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"github.com/pkg/errors" | ||
apps "k8s.io/api/apps/v1" | ||
corev1 "k8s.io/api/core/v1" | ||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" | ||
"k8s.io/apimachinery/pkg/util/wait" | ||
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"github.com/vmware-tanzu/velero/pkg/cmd/cli/install" | ||
velerexec "github.com/vmware-tanzu/velero/pkg/util/exec" | ||
) | ||
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// we provide more install options other than the standard install.InstallOptions in E2E test | ||
type installOptions struct { | ||
*install.InstallOptions | ||
RegistryCredentialFile string | ||
} | ||
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// TODO too many parameters for this function, better to make it a structure, we can introduces a structure `config` for the E2E to hold all configuration items | ||
func veleroInstall(ctx context.Context, cli, veleroImage string, veleroNamespace string, cloudProvider string, objectStoreProvider string, useVolumeSnapshots bool, | ||
cloudCredentialsFile string, bslBucket string, bslPrefix string, bslConfig string, vslConfig string, | ||
crdsVersion string, features string, registryCredentialFile string) error { | ||
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if cloudProvider != "kind" { | ||
if objectStoreProvider != "" { | ||
return errors.New("For cloud platforms, object store plugin cannot be overridden") // Can't set an object store provider that is different than your cloud | ||
} | ||
objectStoreProvider = cloudProvider | ||
} else { | ||
if objectStoreProvider == "" { | ||
return errors.New("No object store provider specified - must be specified when using kind as the cloud provider") // Gotta have an object store provider | ||
} | ||
} | ||
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// Fetch the plugins for the provider before checking for the object store provider below. | ||
providerPlugins := getProviderPlugins(objectStoreProvider) | ||
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// TODO - handle this better | ||
if cloudProvider == "vsphere" { | ||
// We overrider the objectStoreProvider here for vSphere because we want to use the aws plugin for the | ||
// backup, but needed to pick up the provider plugins earlier. vSphere plugin no longer needs a Volume | ||
// Snapshot location specified | ||
objectStoreProvider = "aws" | ||
} | ||
err := ensureClusterExists(ctx) | ||
if err != nil { | ||
return errors.WithMessage(err, "Failed to ensure Kubernetes cluster exists") | ||
} | ||
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veleroInstallOptions, err := getProviderVeleroInstallOptions(objectStoreProvider, cloudCredentialsFile, bslBucket, | ||
bslPrefix, bslConfig, vslConfig, providerPlugins, features) | ||
if err != nil { | ||
return errors.WithMessagef(err, "Failed to get Velero InstallOptions for plugin provider %s", objectStoreProvider) | ||
} | ||
veleroInstallOptions.UseVolumeSnapshots = useVolumeSnapshots | ||
veleroInstallOptions.UseRestic = !useVolumeSnapshots | ||
veleroInstallOptions.Image = veleroImage | ||
veleroInstallOptions.CRDsVersion = crdsVersion | ||
veleroInstallOptions.Namespace = veleroNamespace | ||
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err = installVeleroServer(ctx, cli, &installOptions{ | ||
InstallOptions: veleroInstallOptions, | ||
RegistryCredentialFile: registryCredentialFile, | ||
}) | ||
if err != nil { | ||
return errors.WithMessagef(err, "Failed to install Velero in the cluster") | ||
} | ||
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return nil | ||
} | ||
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func installVeleroServer(ctx context.Context, cli string, options *installOptions) error { | ||
args := []string{"install"} | ||
namespace := "velero" | ||
if len(options.Namespace) > 0 { | ||
args = append(args, "--namespace", options.Namespace) | ||
namespace = options.Namespace | ||
} | ||
if len(options.CRDsVersion) > 0 { | ||
args = append(args, "--crds-version", options.CRDsVersion) | ||
} | ||
if len(options.Image) > 0 { | ||
args = append(args, "--image", options.Image) | ||
} | ||
if options.UseRestic { | ||
args = append(args, "--use-restic") | ||
} | ||
if options.UseVolumeSnapshots { | ||
args = append(args, "--use-volume-snapshots") | ||
} | ||
if len(options.ProviderName) > 0 { | ||
args = append(args, "--provider", options.ProviderName) | ||
} | ||
if len(options.BackupStorageConfig.Data()) > 0 { | ||
args = append(args, "--backup-location-config", options.BackupStorageConfig.String()) | ||
} | ||
if len(options.BucketName) > 0 { | ||
args = append(args, "--bucket", options.BucketName) | ||
} | ||
if len(options.Prefix) > 0 { | ||
args = append(args, "--prefix", options.Prefix) | ||
} | ||
if len(options.SecretFile) > 0 { | ||
args = append(args, "--secret-file", options.SecretFile) | ||
} | ||
if len(options.VolumeSnapshotConfig.Data()) > 0 { | ||
args = append(args, "--snapshot-location-config", options.VolumeSnapshotConfig.String()) | ||
} | ||
if len(options.Plugins) > 0 { | ||
args = append(args, "--plugins", options.Plugins.String()) | ||
} | ||
if len(options.Features) > 0 { | ||
args = append(args, "--features", options.Features) | ||
} | ||
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if err := createVelereResources(ctx, cli, namespace, args, options.RegistryCredentialFile); err != nil { | ||
return err | ||
} | ||
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return waitVeleroReady(ctx, namespace, options.UseRestic) | ||
} | ||
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func createVelereResources(ctx context.Context, cli, namespace string, args []string, registryCredentialFile string) error { | ||
args = append(args, "--dry-run", "--output", "json", "--crds-only") | ||
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// get the CRD definitions | ||
cmd := exec.CommandContext(ctx, cli, args...) | ||
fmt.Printf("Running cmd %q \n", cmd.String()) | ||
stdout, stderr, err := velerexec.RunCommand(cmd) | ||
if err != nil { | ||
return errors.Wrapf(err, "failed to run velero install dry run command with \"--crds-only\" option, stdout=%s, stderr=%s", stdout, stderr) | ||
} | ||
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// apply the CRDs first | ||
cmd = exec.CommandContext(ctx, "kubectl", "apply", "-f", "-") | ||
cmd.Stdin = bytes.NewBufferString(stdout) | ||
cmd.Stdout = os.Stdout | ||
cmd.Stderr = os.Stderr | ||
fmt.Printf("Applying velero CRDs...\n") | ||
if err = cmd.Run(); err != nil { | ||
return errors.Wrapf(err, "failed to apply the CRDs") | ||
} | ||
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// wait until the CRDs are ready | ||
cmd = exec.CommandContext(ctx, "kubectl", "wait", "--for", "condition=established", "-f", "-") | ||
cmd.Stdin = bytes.NewBufferString(stdout) | ||
cmd.Stdout = os.Stdout | ||
cmd.Stderr = os.Stderr | ||
fmt.Printf("Waiting velero CRDs ready...\n") | ||
if err = cmd.Run(); err != nil { | ||
return errors.Wrapf(err, "failed to wait the CRDs be ready") | ||
} | ||
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// remove the "--crds-only" option from the args | ||
args = args[:len(args)-1] | ||
cmd = exec.CommandContext(ctx, cli, args...) | ||
fmt.Printf("Running cmd %q \n", cmd.String()) | ||
stdout, stderr, err = velerexec.RunCommand(cmd) | ||
if err != nil { | ||
return errors.Wrapf(err, "failed to run velero install dry run command, stdout=%s, stderr=%s", stdout, stderr) | ||
} | ||
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resources := &unstructured.UnstructuredList{} | ||
if err := json.Unmarshal([]byte(stdout), resources); err != nil { | ||
return errors.Wrapf(err, "failed to unmarshal the resources: %s", string(stdout)) | ||
} | ||
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if err = patchResources(ctx, resources, namespace, registryCredentialFile); err != nil { | ||
return errors.Wrapf(err, "failed to patch resources") | ||
} | ||
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data, err := json.Marshal(resources) | ||
if err != nil { | ||
return errors.Wrapf(err, "failed to marshal resources") | ||
} | ||
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cmd = exec.CommandContext(ctx, "kubectl", "apply", "-f", "-") | ||
cmd.Stdin = bytes.NewReader(data) | ||
cmd.Stdout = os.Stdout | ||
cmd.Stderr = os.Stderr | ||
fmt.Printf("Running cmd %q \n", cmd.String()) | ||
if err = cmd.Run(); err != nil { | ||
return errors.Wrapf(err, "failed to apply velere resources") | ||
} | ||
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return nil | ||
} | ||
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// patch the velero resources | ||
func patchResources(ctx context.Context, resources *unstructured.UnstructuredList, namespace, registryCredentialFile string) error { | ||
// apply the image pull secret to avoid the image pull limit of Docker Hub | ||
if len(registryCredentialFile) > 0 { | ||
credential, err := ioutil.ReadFile(registryCredentialFile) | ||
if err != nil { | ||
return errors.Wrapf(err, "failed to read the registry credential file %s", registryCredentialFile) | ||
} | ||
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imagePullSecret := corev1.Secret{ | ||
TypeMeta: metav1.TypeMeta{ | ||
Kind: "Secret", | ||
APIVersion: corev1.SchemeGroupVersion.String(), | ||
}, | ||
ObjectMeta: metav1.ObjectMeta{ | ||
Name: "image-pull-secret", | ||
Namespace: namespace, | ||
}, | ||
Type: corev1.SecretTypeDockerConfigJson, | ||
Data: map[string][]byte{ | ||
".dockerconfigjson": credential, | ||
}, | ||
} | ||
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for resourceIndex, resource := range resources.Items { | ||
if resource.GetKind() == "ServiceAccount" && resource.GetName() == "velero" { | ||
resource.Object["imagePullSecrets"] = []map[string]interface{}{ | ||
{ | ||
"name": "image-pull-secret", | ||
}, | ||
} | ||
resources.Items[resourceIndex] = resource | ||
fmt.Printf("image pull secret %q set for velero serviceaccount \n", "image-pull-secret") | ||
break | ||
} | ||
} | ||
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un, err := toUnstructured(imagePullSecret) | ||
if err != nil { | ||
return errors.Wrapf(err, "failed to convert pull secret to unstructure") | ||
} | ||
resources.Items = append(resources.Items, un) | ||
} | ||
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return nil | ||
} | ||
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func toUnstructured(res interface{}) (unstructured.Unstructured, error) { | ||
un := unstructured.Unstructured{} | ||
data, err := json.Marshal(res) | ||
if err != nil { | ||
return un, err | ||
} | ||
err = json.Unmarshal(data, &un) | ||
return un, err | ||
} | ||
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func waitVeleroReady(ctx context.Context, namespace string, useRestic bool) error { | ||
fmt.Println("Waiting for Velero deployment to be ready.") | ||
stdout, stderr, err := velerexec.RunCommand(exec.CommandContext(ctx, "kubectl", "wait", "--for=condition=available", | ||
"deployment/velero", "-n", namespace, "--timeout=600s")) | ||
if err != nil { | ||
return errors.Wrapf(err, "fail to wait for the velero deployment ready, stdout=%s, stderr=%s", stdout, stderr) | ||
} | ||
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if useRestic { | ||
fmt.Println("Waiting for Velero restic daemonset to be ready.") | ||
wait.PollImmediate(5*time.Second, 1*time.Minute, func() (bool, error) { | ||
stdout, stderr, err := velerexec.RunCommand(exec.CommandContext(ctx, "kubectl", "get", "daemonset/restic", | ||
"-o", "json", "-n", namespace)) | ||
if err != nil { | ||
return false, errors.Wrapf(err, "failed to get the restic daemonset, stdout=%s, stderr=%s", stdout, stderr) | ||
} | ||
restic := &apps.DaemonSet{} | ||
if err = json.Unmarshal([]byte(stdout), restic); err != nil { | ||
return false, errors.Wrapf(err, "failed to unmarshal the restic daemonset") | ||
} | ||
if restic.Status.DesiredNumberScheduled == restic.Status.NumberAvailable { | ||
return true, nil | ||
} | ||
return false, nil | ||
}) | ||
} | ||
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fmt.Printf("Velero is installed and ready to be tested in the %s namespace! ⛵ \n", namespace) | ||
return nil | ||
} | ||
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func veleroUninstall(ctx context.Context, cli, namespace string) error { | ||
stdout, stderr, err := velerexec.RunCommand(exec.CommandContext(ctx, cli, "uninstall", "--force", "-n", namespace)) | ||
if err != nil { | ||
return errors.Wrapf(err, "failed to uninstall velero, stdout=%s, stderr=%s", stdout, stderr) | ||
} | ||
fmt.Println("Velero uninstalled ⛵") | ||
return nil | ||
} |
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