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cli: new flag to skip phases of upgrade (#2310)

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Co-authored-by: Daniel Weiße <66256922+daniel-weisse@users.noreply.github.com>
Co-authored-by: Thomas Tendyck <51411342+thomasten@users.noreply.github.com>
This commit is contained in:
Adrian Stobbe 2023-09-08 14:55:07 +02:00 committed by GitHub
parent 7376c6a998
commit 5960025da7
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 207 additions and 75 deletions
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1
cli/internal/cmd/BUILD.bazel
View File

@ -164,6 +164,7 @@ go_test(
"@com_github_spf13_afero//:afero",
"@com_github_spf13_cobra//:cobra",
"@com_github_stretchr_testify//assert",
"@com_github_stretchr_testify//mock",
"@com_github_stretchr_testify//require",
"@io_k8s_api//core/v1:core",
"@io_k8s_apiextensions_apiserver//pkg/apis/apiextensions/v1:apiextensions",

102
cli/internal/cmd/upgradeapply.go
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@ -12,6 +12,7 @@ import (
"fmt"
"io"
"path/filepath"
"strings"
"time"
"github.com/edgelesssys/constellation/v2/cli/internal/cloudcmd"
@ -37,6 +38,20 @@ import (
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
)
const (
// skipInfrastructurePhase skips the terraform apply of the upgrade process.
skipInfrastructurePhase skipPhase = "infrastructure"
// skipHelmPhase skips the helm upgrade of the upgrade process.
skipHelmPhase skipPhase = "helm"
// skipImagePhase skips the image upgrade of the upgrade process.
skipImagePhase skipPhase = "image"
// skipK8sPhase skips the k8s upgrade of the upgrade process.
skipK8sPhase skipPhase = "k8s"
)
// skipPhase is a phase of the upgrade process that can be skipped.
type skipPhase string
func newUpgradeApplyCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "apply",
@ -53,6 +68,8 @@ func newUpgradeApplyCmd() *cobra.Command {
"Might be useful for slow connections or big clusters.")
cmd.Flags().Bool("conformance", false, "enable conformance mode")
cmd.Flags().Bool("skip-helm-wait", false, "install helm charts without waiting for deployments to be ready")
cmd.Flags().StringSlice("skip-phases", nil, "comma-separated list of upgrade phases to skip\n"+
"one or multiple of { infrastructure | helm | image | k8s }")
if err := cmd.Flags().MarkHidden("timeout"); err != nil {
panic(err)
}
@ -172,9 +189,17 @@ func (u *upgradeApplyCmd) upgradeApply(cmd *cobra.Command, upgradeDir string, fl
return fmt.Errorf("upgrading measurements: %w", err)
}
tfOutput, err := u.migrateTerraform(cmd, conf, upgradeDir, flags)
if err != nil {
return fmt.Errorf("performing Terraform migrations: %w", err)
var tfOutput terraform.ApplyOutput
if flags.skipPhases.contains(skipInfrastructurePhase) {
tfOutput, err = u.clusterShower.ShowCluster(cmd.Context(), conf.GetProvider())
if err != nil {
return fmt.Errorf("getting Terraform output: %w", err)
}
} else {
tfOutput, err = u.migrateTerraform(cmd, conf, upgradeDir, flags)
if err != nil {
return fmt.Errorf("performing Terraform migrations: %w", err)
}
}
// reload idFile after terraform migration
// it might have been updated by the migration
@ -197,26 +222,31 @@ func (u *upgradeApplyCmd) upgradeApply(cmd *cobra.Command, upgradeDir string, fl
}
var upgradeErr *compatibility.InvalidUpgradeError
err = u.handleServiceUpgrade(cmd, conf, idFile, tfOutput, validK8sVersion, upgradeDir, flags)
switch {
case errors.As(err, &upgradeErr):
cmd.PrintErrln(err)
case err == nil:
cmd.Println("Successfully upgraded Constellation services.")
case err != nil:
return fmt.Errorf("upgrading services: %w", err)
if !flags.skipPhases.contains(skipHelmPhase) {
err = u.handleServiceUpgrade(cmd, conf, idFile, tfOutput, validK8sVersion, upgradeDir, flags)
switch {
case errors.As(err, &upgradeErr):
cmd.PrintErrln(err)
case err == nil:
cmd.Println("Successfully upgraded Constellation services.")
case err != nil:
return fmt.Errorf("upgrading services: %w", err)
}
}
err = u.kubeUpgrader.UpgradeNodeVersion(cmd.Context(), conf, flags.force)
switch {
case errors.Is(err, kubecmd.ErrInProgress):
cmd.PrintErrln("Skipping image and Kubernetes upgrades. Another upgrade is in progress.")
case errors.As(err, &upgradeErr):
cmd.PrintErrln(err)
case err != nil:
return fmt.Errorf("upgrading NodeVersion: %w", err)
skipImageUpgrade := flags.skipPhases.contains(skipImagePhase)
skipK8sUpgrade := flags.skipPhases.contains(skipK8sPhase)
if !(skipImageUpgrade && skipK8sUpgrade) {
err = u.kubeUpgrader.UpgradeNodeVersion(cmd.Context(), conf, flags.force, skipImageUpgrade, skipK8sUpgrade)
switch {
case errors.Is(err, kubecmd.ErrInProgress):
cmd.PrintErrln("Skipping image and Kubernetes upgrades. Another upgrade is in progress.")
case errors.As(err, &upgradeErr):
cmd.PrintErrln(err)
case err != nil:
return fmt.Errorf("upgrading NodeVersion: %w", err)
}
}
return nil
}
@ -516,6 +546,21 @@ func parseUpgradeApplyFlags(cmd *cobra.Command) (upgradeApplyFlags, error) {
if skipHelmWait {
helmWaitMode = helm.WaitModeNone
}
rawSkipPhases, err := cmd.Flags().GetStringSlice("skip-phases")
if err != nil {
return upgradeApplyFlags{}, fmt.Errorf("parsing skip-phases flag: %w", err)
}
var skipPhases []skipPhase
for _, phase := range rawSkipPhases {
switch skipPhase(phase) {
case skipInfrastructurePhase, skipHelmPhase, skipImagePhase, skipK8sPhase:
skipPhases = append(skipPhases, skipPhase(phase))
default:
return upgradeApplyFlags{}, fmt.Errorf("invalid phase %s", phase)
}
}
return upgradeApplyFlags{
pf: pathprefix.New(workDir),
yes: yes,
@ -524,6 +569,7 @@ func parseUpgradeApplyFlags(cmd *cobra.Command) (upgradeApplyFlags, error) {
terraformLogLevel: logLevel,
conformance: conformance,
helmWaitMode: helmWaitMode,
skipPhases: skipPhases,
}, nil
}
@ -558,10 +604,24 @@ type upgradeApplyFlags struct {
terraformLogLevel terraform.LogLevel
conformance bool
helmWaitMode helm.WaitMode
skipPhases skipPhases
}
// skipPhases is a list of phases that can be skipped during the upgrade process.
type skipPhases []skipPhase
// contains returns true if the list of phases contains the given phase.
func (s skipPhases) contains(phase skipPhase) bool {
for _, p := range s {
if strings.EqualFold(string(p), string(phase)) {
return true
}
}
return false
}
type kubernetesUpgrader interface {
UpgradeNodeVersion(ctx context.Context, conf *config.Config, force bool) error
UpgradeNodeVersion(ctx context.Context, conf *config.Config, force, skipImage, skipK8s bool) error
ExtendClusterConfigCertSANs(ctx context.Context, alternativeNames []string) error
GetClusterAttestationConfig(ctx context.Context, variant variant.Variant) (config.AttestationCfg, error)
ApplyJoinConfig(ctx context.Context, newAttestConfig config.AttestationCfg, measurementSalt []byte) error

91
cli/internal/cmd/upgradeapply_test.go
View File

@ -13,6 +13,7 @@ import (
"testing"
"github.com/edgelesssys/constellation/v2/cli/internal/clusterid"
"github.com/edgelesssys/constellation/v2/cli/internal/helm"
"github.com/edgelesssys/constellation/v2/cli/internal/kubecmd"
"github.com/edgelesssys/constellation/v2/cli/internal/terraform"
"github.com/edgelesssys/constellation/v2/internal/attestation/variant"
@ -22,17 +23,19 @@ import (
"github.com/edgelesssys/constellation/v2/internal/file"
"github.com/edgelesssys/constellation/v2/internal/kms/uri"
"github.com/edgelesssys/constellation/v2/internal/logger"
"github.com/edgelesssys/constellation/v2/internal/versions"
"github.com/spf13/afero"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/require"
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
)
func TestUpgradeApply(t *testing.T) {
testCases := map[string]struct {
helmUpgrader stubApplier
helmUpgrader helmApplier
kubeUpgrader *stubKubernetesUpgrader
terraformUpgrader *stubTerraformUpgrader
terraformUpgrader clusterUpgrader
wantErr bool
flags upgradeApplyFlags
stdin string
@ -101,6 +104,28 @@ func TestUpgradeApply(t *testing.T) {
wantErr: true,
flags: upgradeApplyFlags{yes: true},
},
"skip all upgrade phases": {
kubeUpgrader: &stubKubernetesUpgrader{
currentConfig: config.DefaultForAzureSEVSNP(),
},
helmUpgrader: &mockApplier{}, // mocks ensure that no methods are called
terraformUpgrader: &mockTerraformUpgrader{},
flags: upgradeApplyFlags{
skipPhases: []skipPhase{skipInfrastructurePhase, skipHelmPhase, skipK8sPhase, skipImagePhase},
yes: true,
},
},
"skip all phases except node upgrade": {
kubeUpgrader: &stubKubernetesUpgrader{
currentConfig: config.DefaultForAzureSEVSNP(),
},
helmUpgrader: &mockApplier{}, // mocks ensure that no methods are called
terraformUpgrader: &mockTerraformUpgrader{},
flags: upgradeApplyFlags{
skipPhases: []skipPhase{skipInfrastructurePhase, skipHelmPhase, skipK8sPhase},
yes: true,
},
},
}
for name, tc := range testCases {
@ -134,46 +159,63 @@ func TestUpgradeApply(t *testing.T) {
return
}
assert.NoError(err)
assert.Equal(!tc.flags.skipPhases.contains(skipImagePhase), tc.kubeUpgrader.calledNodeUpgrade,
"incorrect node upgrade skipping behavior")
})
}
}
type stubKubernetesUpgrader struct {
nodeVersionErr error
currentConfig config.AttestationCfg
func TestUpgradeApplyFlagsForSkipPhases(t *testing.T) {
cmd := newUpgradeApplyCmd()
cmd.Flags().String("workspace", "", "") // register persistent flag manually
cmd.Flags().Bool("force", true, "") // register persistent flag manually
cmd.Flags().String("tf-log", "NONE", "") // register persistent flag manually
require.NoError(t, cmd.Flags().Set("skip-phases", "infrastructure,helm,k8s,image"))
result, err := parseUpgradeApplyFlags(cmd)
if err != nil {
t.Fatalf("Error while parsing flags: %v", err)
}
assert.ElementsMatch(t, []skipPhase{skipInfrastructurePhase, skipHelmPhase, skipK8sPhase, skipImagePhase}, result.skipPhases)
}
func (u stubKubernetesUpgrader) BackupCRDs(_ context.Context, _ string) ([]apiextensionsv1.CustomResourceDefinition, error) {
type stubKubernetesUpgrader struct {
nodeVersionErr error
currentConfig config.AttestationCfg
calledNodeUpgrade bool
}
func (u *stubKubernetesUpgrader) BackupCRDs(_ context.Context, _ string) ([]apiextensionsv1.CustomResourceDefinition, error) {
return []apiextensionsv1.CustomResourceDefinition{}, nil
}
func (u stubKubernetesUpgrader) BackupCRs(_ context.Context, _ []apiextensionsv1.CustomResourceDefinition, _ string) error {
func (u *stubKubernetesUpgrader) BackupCRs(_ context.Context, _ []apiextensionsv1.CustomResourceDefinition, _ string) error {
return nil
}
func (u stubKubernetesUpgrader) UpgradeNodeVersion(_ context.Context, _ *config.Config, _ bool) error {
func (u *stubKubernetesUpgrader) UpgradeNodeVersion(_ context.Context, _ *config.Config, _, _, _ bool) error {
u.calledNodeUpgrade = true
return u.nodeVersionErr
}
func (u stubKubernetesUpgrader) ApplyJoinConfig(_ context.Context, _ config.AttestationCfg, _ []byte) error {
func (u *stubKubernetesUpgrader) ApplyJoinConfig(_ context.Context, _ config.AttestationCfg, _ []byte) error {
return nil
}
func (u stubKubernetesUpgrader) GetClusterAttestationConfig(_ context.Context, _ variant.Variant) (config.AttestationCfg, error) {
func (u *stubKubernetesUpgrader) GetClusterAttestationConfig(_ context.Context, _ variant.Variant) (config.AttestationCfg, error) {
return u.currentConfig, nil
}
func (u stubKubernetesUpgrader) ExtendClusterConfigCertSANs(_ context.Context, _ []string) error {
func (u *stubKubernetesUpgrader) ExtendClusterConfigCertSANs(_ context.Context, _ []string) error {
return nil
}
// TODO(v2.11): Remove this function.
func (u stubKubernetesUpgrader) RemoveAttestationConfigHelmManagement(_ context.Context) error {
func (u *stubKubernetesUpgrader) RemoveAttestationConfigHelmManagement(_ context.Context) error {
return nil
}
// TODO(v2.12): Remove this function.
func (u stubKubernetesUpgrader) RemoveHelmKeepAnnotation(_ context.Context) error {
func (u *stubKubernetesUpgrader) RemoveHelmKeepAnnotation(_ context.Context) error {
return nil
}
@ -190,3 +232,26 @@ func (u stubTerraformUpgrader) PlanClusterUpgrade(_ context.Context, _ io.Writer
func (u stubTerraformUpgrader) ApplyClusterUpgrade(_ context.Context, _ cloudprovider.Provider) (terraform.ApplyOutput, error) {
return terraform.ApplyOutput{}, u.applyTerraformErr
}
type mockTerraformUpgrader struct {
mock.Mock
}
func (m *mockTerraformUpgrader) PlanClusterUpgrade(ctx context.Context, w io.Writer, variables terraform.Variables, provider cloudprovider.Provider) (bool, error) {
args := m.Called(ctx, w, variables, provider)
return args.Bool(0), args.Error(1)
}
func (m *mockTerraformUpgrader) ApplyClusterUpgrade(ctx context.Context, provider cloudprovider.Provider) (terraform.ApplyOutput, error) {
args := m.Called(ctx, provider)
return args.Get(0).(terraform.ApplyOutput), args.Error(1)
}
type mockApplier struct {
mock.Mock
}
func (m *mockApplier) PrepareApply(cfg *config.Config, k8sVersion versions.ValidK8sVersion, clusterID clusterid.File, helmOpts helm.Options, terraformOut terraform.ApplyOutput, str string, masterSecret uri.MasterSecret) (helm.Applier, bool, error) {
args := m.Called(cfg, k8sVersion, clusterID, helmOpts, terraformOut, str, masterSecret)
return args.Get(0).(helm.Applier), args.Bool(1), args.Error(2)
}

72
cli/internal/kubecmd/kubecmd.go
View File

@ -99,7 +99,8 @@ func New(outWriter io.Writer, kubeConfigPath string, fileHandler file.Handler, l
// UpgradeNodeVersion upgrades the cluster's NodeVersion object and in turn triggers image & k8s version upgrades.
// The versions set in the config are validated against the versions running in the cluster.
func (k *KubeCmd) UpgradeNodeVersion(ctx context.Context, conf *config.Config, force bool) error {
// TODO(elchead): AB#3434 Split K8s and image upgrade of UpgradeNodeVersion.
func (k *KubeCmd) UpgradeNodeVersion(ctx context.Context, conf *config.Config, force, skipImage, skipK8s bool) error {
provider := conf.GetProvider()
attestationVariant := conf.GetAttestationConfig().GetVariant()
region := conf.GetRegion()
@ -120,40 +121,43 @@ func (k *KubeCmd) UpgradeNodeVersion(ctx context.Context, conf *config.Config, f
upgradeErrs := []error{}
var upgradeErr *compatibility.InvalidUpgradeError
err = k.isValidImageUpgrade(nodeVersion, imageVersion.Version(), force)
switch {
case errors.As(err, &upgradeErr):
upgradeErrs = append(upgradeErrs, fmt.Errorf("skipping image upgrades: %w", err))
case err != nil:
return fmt.Errorf("updating image version: %w", err)
}
k.log.Debugf("Updating local copy of nodeVersion image version from %s to %s", nodeVersion.Spec.ImageVersion, imageVersion.Version())
nodeVersion.Spec.ImageReference = imageReference
nodeVersion.Spec.ImageVersion = imageVersion.Version()
// We have to allow users to specify outdated k8s patch versions.
// Therefore, this code has to skip k8s updates if a user configures an outdated (i.e. invalid) k8s version.
var components *corev1.ConfigMap
currentK8sVersion, err := versions.NewValidK8sVersion(conf.KubernetesVersion, true)
if err != nil {
innerErr := fmt.Errorf("unsupported Kubernetes version, supported versions are %s", strings.Join(versions.SupportedK8sVersions(), ", "))
err = compatibility.NewInvalidUpgradeError(nodeVersion.Spec.KubernetesClusterVersion, conf.KubernetesVersion, innerErr)
} else {
versionConfig := versions.VersionConfigs[currentK8sVersion]
components, err = k.updateK8s(&nodeVersion, versionConfig.ClusterVersion, versionConfig.KubernetesComponents, force)
}
switch {
case err == nil:
err := k.applyComponentsCM(ctx, components)
if err != nil {
return fmt.Errorf("applying k8s components ConfigMap: %w", err)
if !skipImage {
err = k.isValidImageUpgrade(nodeVersion, imageVersion.Version(), force)
switch {
case errors.As(err, &upgradeErr):
upgradeErrs = append(upgradeErrs, fmt.Errorf("skipping image upgrades: %w", err))
case err != nil:
return fmt.Errorf("updating image version: %w", err)
}
k.log.Debugf("Updating local copy of nodeVersion image version from %s to %s", nodeVersion.Spec.ImageVersion, imageVersion.Version())
nodeVersion.Spec.ImageReference = imageReference
nodeVersion.Spec.ImageVersion = imageVersion.Version()
}
if !skipK8s {
// We have to allow users to specify outdated k8s patch versions.
// Therefore, this code has to skip k8s updates if a user configures an outdated (i.e. invalid) k8s version.
var components *corev1.ConfigMap
currentK8sVersion, err := versions.NewValidK8sVersion(conf.KubernetesVersion, true)
if err != nil {
innerErr := fmt.Errorf("unsupported Kubernetes version, supported versions are %s", strings.Join(versions.SupportedK8sVersions(), ", "))
err = compatibility.NewInvalidUpgradeError(nodeVersion.Spec.KubernetesClusterVersion, conf.KubernetesVersion, innerErr)
} else {
versionConfig := versions.VersionConfigs[currentK8sVersion]
components, err = k.updateK8s(&nodeVersion, versionConfig.ClusterVersion, versionConfig.KubernetesComponents, force)
}
switch {
case err == nil:
err := k.applyComponentsCM(ctx, components)
if err != nil {
return fmt.Errorf("applying k8s components ConfigMap: %w", err)
}
case errors.As(err, &upgradeErr):
upgradeErrs = append(upgradeErrs, fmt.Errorf("skipping Kubernetes upgrades: %w", err))
default:
return fmt.Errorf("updating Kubernetes version: %w", err)
}
case errors.As(err, &upgradeErr):
upgradeErrs = append(upgradeErrs, fmt.Errorf("skipping Kubernetes upgrades: %w", err))
default:
return fmt.Errorf("updating Kubernetes version: %w", err)
}
if len(upgradeErrs) == 2 {

2
cli/internal/kubecmd/kubecmd_test.go
View File

@ -332,7 +332,7 @@ func TestUpgradeNodeVersion(t *testing.T) {
outWriter: io.Discard,
}
err = upgrader.UpgradeNodeVersion(context.Background(), tc.conf, tc.force)
err = upgrader.UpgradeNodeVersion(context.Background(), tc.conf, tc.force, false, false)
// Check upgrades first because if we checked err first, UpgradeImage may error due to other reasons and still trigger an upgrade.
if tc.wantUpdate {
assert.NotNil(unstructuredClient.updatedObject)

14
docs/docs/reference/cli.md
View File

@ -472,12 +472,14 @@ constellation upgrade apply [flags]
### Options
```
--conformance enable conformance mode
-h, --help help for apply
--skip-helm-wait install helm charts without waiting for deployments to be ready
-y, --yes run upgrades without further confirmation
WARNING: might delete your resources in case you are using cert-manager in your cluster. Please read the docs.
WARNING: might unintentionally overwrite measurements in the running cluster.
--conformance enable conformance mode
-h, --help help for apply
--skip-helm-wait install helm charts without waiting for deployments to be ready
--skip-phases strings comma-separated list of upgrade phases to skip
one or multiple of { infrastructure | helm | image | k8s }
-y, --yes run upgrades without further confirmation
WARNING: might delete your resources in case you are using cert-manager in your cluster. Please read the docs.
WARNING: might unintentionally overwrite measurements in the running cluster.
```
### Options inherited from parent commands