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constellation-lib: refactor init RPC to be shared (#2665)

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* constellation-lib: refactor init RPC

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* constellation-lib: pass io.Writer for collecting logs

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* constellation-lib: add init test

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* constellation-lib: bin dialer to struct

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* constellation-lib: set service CIDR on init

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

---------

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>
This commit is contained in:
Moritz Sanft 2023-12-04 13:40:24 +01:00 • committed by GitHub
parent db49093da7
commit 17aecaaf5f
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
12 changed files with 758 additions and 342 deletions
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18
cli/internal/cloudcmd/validators.go
View file

@ -23,7 +23,7 @@ import (
// NewValidator creates a new Validator.
func NewValidator(cmd *cobra.Command, config config.AttestationCfg, log debugLog) (atls.Validator, error) {
return choose.Validator(config, warnLogger{cmd: cmd, log: log})
return choose.Validator(config, WarnLogger{Cmd: cmd, Log: log})
}
// UpdateInitMeasurements sets the owner and cluster measurement values.
@ -102,21 +102,21 @@ func decodeMeasurement(encoded string) ([]byte, error) {
return decoded, nil
}
// warnLogger implements logging of warnings for validators.
type warnLogger struct {
cmd *cobra.Command
log debugLog
// WarnLogger implements logging of warnings for validators.
type WarnLogger struct {
Cmd *cobra.Command
Log debugLog
}
// Infof messages are reduced to debug messages, since we don't want
// the extra info when using the CLI without setting the debug flag.
func (wl warnLogger) Infof(fmtStr string, args ...any) {
wl.log.Debugf(fmtStr, args...)
func (wl WarnLogger) Infof(fmtStr string, args ...any) {
wl.Log.Debugf(fmtStr, args...)
}
// Warnf prints a formatted warning from the validator.
func (wl warnLogger) Warnf(fmtStr string, args ...any) {
wl.cmd.PrintErrf("Warning: %s\n", fmt.Sprintf(fmtStr, args...))
func (wl WarnLogger) Warnf(fmtStr string, args ...any) {
wl.Cmd.PrintErrf("Warning: %s\n", fmt.Sprintf(fmtStr, args...))
}
type debugLog interface {

3
cli/internal/cmd/BUILD.bazel
View file

@ -60,6 +60,7 @@ go_library(
"//internal/api/fetcher",
"//internal/api/versionsapi",
"//internal/atls",
"//internal/attestation/choose",
"//internal/attestation/measurements",
"//internal/attestation/snp",
"//internal/attestation/variant",
@ -76,7 +77,6 @@ go_library(
"//internal/featureset",
"//internal/file",
"//internal/grpc/dialer",
"//internal/grpc/grpclog",
"//internal/grpc/retry",
"//internal/helm",
"//internal/kms/uri",
@ -163,6 +163,7 @@ go_test(
"//internal/cloud/gcpshared",
"//internal/config",
"//internal/constants",
"//internal/constellation",
"//internal/crypto",
"//internal/crypto/testvector",
"//internal/file",

23
cli/internal/cmd/apply.go
View file

@ -19,6 +19,7 @@ import (
"strings"
"time"
"github.com/edgelesssys/constellation/v2/bootstrapper/initproto"
"github.com/edgelesssys/constellation/v2/cli/internal/cloudcmd"
"github.com/edgelesssys/constellation/v2/internal/api/attestationconfigapi"
"github.com/edgelesssys/constellation/v2/internal/atls"
@ -31,6 +32,7 @@ import (
"github.com/edgelesssys/constellation/v2/internal/file"
"github.com/edgelesssys/constellation/v2/internal/grpc/dialer"
"github.com/edgelesssys/constellation/v2/internal/helm"
"github.com/edgelesssys/constellation/v2/internal/kms/uri"
"github.com/edgelesssys/constellation/v2/internal/kubecmd"
"github.com/edgelesssys/constellation/v2/internal/state"
"github.com/edgelesssys/constellation/v2/internal/versions"
@ -252,12 +254,13 @@ func runApply(cmd *cobra.Command, _ []string) error {
)
}
applier := constellation.NewApplier(log)
applier := constellation.NewApplier(log, spinner, newDialer)
apply := &applyCmd{
fileHandler: fileHandler,
flags: flags,
log: log,
wLog: &cloudcmd.WarnLogger{Cmd: cmd, Log: log},
spinner: spinner,
merger: &kubeconfigMerger{log: log},
newHelmClient: newHelmClient,
@ -279,6 +282,7 @@ type applyCmd struct {
flags applyFlags
log debugLog
wLog warnLog
spinner spinnerInterf
merger configMerger
@ -293,6 +297,23 @@ type applyCmd struct {
type applier interface {
CheckLicense(ctx context.Context, csp cloudprovider.Provider, licenseID string) (int, error)
GenerateMasterSecret() (uri.MasterSecret, error)
GenerateMeasurementSalt() ([]byte, error)
Init(
ctx context.Context,
validator atls.Validator,
state *state.State,
clusterLogWriter io.Writer,
payload constellation.InitPayload,
) (
*initproto.InitSuccessResponse,
error,
)
}
type warnLog interface {
Warnf(format string, args ...any)
Infof(format string, args ...any)
}
/*

25
cli/internal/cmd/apply_test.go
View file

@ -11,15 +11,19 @@ import (
"context"
"errors"
"fmt"
"io"
"path/filepath"
"strings"
"testing"
"time"
"github.com/edgelesssys/constellation/v2/bootstrapper/initproto"
"github.com/edgelesssys/constellation/v2/internal/atls"
"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
"github.com/edgelesssys/constellation/v2/internal/cloud/gcpshared"
"github.com/edgelesssys/constellation/v2/internal/config"
"github.com/edgelesssys/constellation/v2/internal/constants"
"github.com/edgelesssys/constellation/v2/internal/constellation"
"github.com/edgelesssys/constellation/v2/internal/file"
"github.com/edgelesssys/constellation/v2/internal/helm"
"github.com/edgelesssys/constellation/v2/internal/kms/uri"
@ -488,8 +492,25 @@ func newPhases(phases ...skipPhase) skipPhases {
return skipPhases
}
type stubConstellApplier struct{}
type stubConstellApplier struct {
checkLicenseErr error
generateMasterSecretErr error
generateMeasurementSaltErr error
initErr error
}
func (s *stubConstellApplier) CheckLicense(context.Context, cloudprovider.Provider, string) (int, error) {
return 0, nil
return 0, s.checkLicenseErr
}
func (s *stubConstellApplier) GenerateMasterSecret() (uri.MasterSecret, error) {
return uri.MasterSecret{}, s.generateMasterSecretErr
}
func (s *stubConstellApplier) GenerateMeasurementSalt() ([]byte, error) {
return nil, s.generateMeasurementSaltErr
}
func (s *stubConstellApplier) Init(context.Context, atls.Validator, *state.State, io.Writer, constellation.InitPayload) (*initproto.InitSuccessResponse, error) {
return nil, s.initErr
}

100
cli/internal/cmd/applyinit.go
View file

@ -8,7 +8,6 @@ package cmd
import (
"bytes"
"context"
"encoding/hex"
"errors"
"fmt"
@ -16,22 +15,16 @@ import (
"net"
"net/url"
"path/filepath"
"strconv"
"text/tabwriter"
"time"
"github.com/edgelesssys/constellation/v2/bootstrapper/initproto"
"github.com/edgelesssys/constellation/v2/cli/internal/cloudcmd"
"github.com/edgelesssys/constellation/v2/internal/attestation/choose"
"github.com/edgelesssys/constellation/v2/internal/config"
"github.com/edgelesssys/constellation/v2/internal/constants"
"github.com/edgelesssys/constellation/v2/internal/crypto"
"github.com/edgelesssys/constellation/v2/internal/constellation"
"github.com/edgelesssys/constellation/v2/internal/file"
grpcRetry "github.com/edgelesssys/constellation/v2/internal/grpc/retry"
"github.com/edgelesssys/constellation/v2/internal/kms/uri"
"github.com/edgelesssys/constellation/v2/internal/retry"
"github.com/edgelesssys/constellation/v2/internal/state"
"github.com/edgelesssys/constellation/v2/internal/versions"
"github.com/spf13/afero"
"github.com/spf13/cobra"
"k8s.io/client-go/tools/clientcmd"
)
@ -41,51 +34,45 @@ import (
// On success, it writes the Kubernetes admin config file to disk.
// Therefore it is skipped if the Kubernetes admin config file already exists.
func (a *applyCmd) runInit(cmd *cobra.Command, conf *config.Config, stateFile *state.State) (*bytes.Buffer, error) {
a.log.Debugf("Running init RPC")
a.log.Debugf("Creating aTLS Validator for %s", conf.GetAttestationConfig().GetVariant())
validator, err := cloudcmd.NewValidator(cmd, conf.GetAttestationConfig(), a.log)
validator, err := choose.Validator(conf.GetAttestationConfig(), a.wLog)
if err != nil {
return nil, fmt.Errorf("creating new validator: %w", err)
return nil, fmt.Errorf("creating validator: %w", err)
}
a.log.Debugf("Generating master secret")
a.log.Debugf("Running init RPC")
masterSecret, err := a.generateAndPersistMasterSecret(cmd.OutOrStdout())
if err != nil {
return nil, fmt.Errorf("generating master secret: %w", err)
}
a.log.Debugf("Generated master secret key and salt values")
a.log.Debugf("Generating measurement salt")
measurementSalt, err := crypto.GenerateRandomBytes(crypto.RNGLengthDefault)
measurementSalt, err := a.applier.GenerateMeasurementSalt()
if err != nil {
return nil, fmt.Errorf("generating measurement salt: %w", err)
}
a.spinner.Start("Connecting ", false)
req := &initproto.InitRequest{
KmsUri: masterSecret.EncodeToURI(),
StorageUri: uri.NoStoreURI,
MeasurementSalt: measurementSalt,
KubernetesVersion: versions.VersionConfigs[conf.KubernetesVersion].ClusterVersion,
KubernetesComponents: versions.VersionConfigs[conf.KubernetesVersion].KubernetesComponents.ToInitProto(),
ConformanceMode: a.flags.conformance,
InitSecret: stateFile.Infrastructure.InitSecret,
ClusterName: stateFile.Infrastructure.Name,
ApiserverCertSans: stateFile.Infrastructure.APIServerCertSANs,
ServiceCidr: conf.ServiceCIDR,
clusterLogs := &bytes.Buffer{}
resp, err := a.applier.Init(
cmd.Context(), validator, stateFile, clusterLogs,
constellation.InitPayload{
MasterSecret: masterSecret,
MeasurementSalt: measurementSalt,
K8sVersion: conf.KubernetesVersion,
ConformanceMode: a.flags.conformance,
ServiceCIDR: conf.ServiceCIDR,
})
if len(clusterLogs.Bytes()) > 0 {
if err := a.fileHandler.Write(constants.ErrorLog, clusterLogs.Bytes(), file.OptAppend); err != nil {
return nil, fmt.Errorf("writing bootstrapper logs: %w", err)
}
}
a.log.Debugf("Sending initialization request")
resp, err := a.initCall(cmd.Context(), a.newDialer(validator), stateFile.Infrastructure.ClusterEndpoint, req)
a.spinner.Stop()
a.log.Debugf("Initialization request finished")
if err != nil {
var nonRetriable *nonRetriableError
var nonRetriable *constellation.NonRetriableInitError
if errors.As(err, &nonRetriable) {
cmd.PrintErrln("Cluster initialization failed. This error is not recoverable.")
cmd.PrintErrln("Terminate your cluster and try again.")
if nonRetriable.logCollectionErr != nil {
cmd.PrintErrf("Failed to collect logs from bootstrapper: %s\n", nonRetriable.logCollectionErr)
if nonRetriable.LogCollectionErr != nil {
cmd.PrintErrf("Failed to collect logs from bootstrapper: %s\n", nonRetriable.LogCollectionErr)
} else {
cmd.PrintErrf("Fetched bootstrapper logs are stored in %q\n", a.flags.pathPrefixer.PrefixPrintablePath(constants.ErrorLog))
}
@ -103,49 +90,14 @@ func (a *applyCmd) runInit(cmd *cobra.Command, conf *config.Config, stateFile *s
return bufferedOutput, nil
}
// initCall performs the gRPC call to the bootstrapper to initialize the cluster.
func (a *applyCmd) initCall(ctx context.Context, dialer grpcDialer, ip string, req *initproto.InitRequest) (*initproto.InitSuccessResponse, error) {
doer := &initDoer{
dialer: dialer,
endpoint: net.JoinHostPort(ip, strconv.Itoa(constants.BootstrapperPort)),
req: req,
log: a.log,
spinner: a.spinner,
fh: file.NewHandler(afero.NewOsFs()),
}
// Create a wrapper function that allows logging any returned error from the retrier before checking if it's the expected retriable one.
serviceIsUnavailable := func(err error) bool {
isServiceUnavailable := grpcRetry.ServiceIsUnavailable(err)
a.log.Debugf("Encountered error (retriable: %t): %s", isServiceUnavailable, err)
return isServiceUnavailable
}
a.log.Debugf("Making initialization call, doer is %+v", doer)
retrier := retry.NewIntervalRetrier(doer, 30*time.Second, serviceIsUnavailable)
if err := retrier.Do(ctx); err != nil {
return nil, err
}
return doer.resp, nil
}
// generateAndPersistMasterSecret generates a 32 byte master secret and saves it to disk.
func (a *applyCmd) generateAndPersistMasterSecret(outWriter io.Writer) (uri.MasterSecret, error) {
// No file given, generate a new secret, and save it to disk
key, err := crypto.GenerateRandomBytes(crypto.MasterSecretLengthDefault)
secret, err := a.applier.GenerateMasterSecret()
if err != nil {
return uri.MasterSecret{}, err
}
salt, err := crypto.GenerateRandomBytes(crypto.RNGLengthDefault)
if err != nil {
return uri.MasterSecret{}, err
}
secret := uri.MasterSecret{
Key: key,
Salt: salt,
return uri.MasterSecret{}, fmt.Errorf("generating master secret: %w", err)
}
if err := a.fileHandler.WriteJSON(constants.MasterSecretFilename, secret, file.OptNone); err != nil {
return uri.MasterSecret{}, err
return uri.MasterSecret{}, fmt.Errorf("writing master secret: %w", err)
}
fmt.Fprintf(outWriter, "Your Constellation master secret was successfully written to %q\n", a.flags.pathPrefixer.PrefixPrintablePath(constants.MasterSecretFilename))
return secret, nil

157
cli/internal/cmd/init.go
View file

@ -8,11 +8,9 @@ package cmd
import (
"context"
"errors"
"fmt"
"io"
"os"
"sync"
"time"
"github.com/spf13/cobra"
@ -22,13 +20,10 @@ import (
clientcodec "k8s.io/client-go/tools/clientcmd/api/latest"
"sigs.k8s.io/yaml"
"github.com/edgelesssys/constellation/v2/bootstrapper/initproto"
"github.com/edgelesssys/constellation/v2/internal/attestation/variant"
"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
"github.com/edgelesssys/constellation/v2/internal/config"
"github.com/edgelesssys/constellation/v2/internal/constants"
"github.com/edgelesssys/constellation/v2/internal/file"
"github.com/edgelesssys/constellation/v2/internal/grpc/grpclog"
"github.com/edgelesssys/constellation/v2/internal/helm"
"github.com/edgelesssys/constellation/v2/internal/kms/uri"
"github.com/edgelesssys/constellation/v2/internal/semver"
@ -61,142 +56,6 @@ func NewInitCmd() *cobra.Command {
return cmd
}
type initDoer struct {
dialer grpcDialer
endpoint string
req *initproto.InitRequest
resp *initproto.InitSuccessResponse
log debugLog
spinner spinnerInterf
connectedOnce bool
fh file.Handler
}
func (d *initDoer) Do(ctx context.Context) error {
// connectedOnce is set in handleGRPCStateChanges when a connection was established in one retry attempt.
// This should cancel any other retry attempts when the connection is lost since the bootstrapper likely won't accept any new attempts anymore.
if d.connectedOnce {
return &nonRetriableError{
logCollectionErr: errors.New("init already connected to the remote server in a previous attempt - resumption is not supported"),
err: errors.New("init already connected to the remote server in a previous attempt - resumption is not supported"),
}
}
conn, err := d.dialer.Dial(ctx, d.endpoint)
if err != nil {
d.log.Debugf("Dialing init server failed: %s. Retrying...", err)
return fmt.Errorf("dialing init server: %w", err)
}
defer conn.Close()
var wg sync.WaitGroup
defer wg.Wait()
grpcStateLogCtx, grpcStateLogCancel := context.WithCancel(ctx)
defer grpcStateLogCancel()
d.handleGRPCStateChanges(grpcStateLogCtx, &wg, conn)
protoClient := initproto.NewAPIClient(conn)
d.log.Debugf("Created protoClient")
resp, err := protoClient.Init(ctx, d.req)
if err != nil {
return &nonRetriableError{
logCollectionErr: errors.New("rpc failed before first response was received - no logs available"),
err: fmt.Errorf("init call: %w", err),
}
}
res, err := resp.Recv() // get first response, either success or failure
if err != nil {
if e := d.getLogs(resp); e != nil {
d.log.Debugf("Failed to collect logs: %s", e)
return &nonRetriableError{
logCollectionErr: e,
err: err,
}
}
return &nonRetriableError{err: err}
}
switch res.Kind.(type) {
case *initproto.InitResponse_InitFailure:
if e := d.getLogs(resp); e != nil {
d.log.Debugf("Failed to get logs from cluster: %s", e)
return &nonRetriableError{
logCollectionErr: e,
err: errors.New(res.GetInitFailure().GetError()),
}
}
return &nonRetriableError{err: errors.New(res.GetInitFailure().GetError())}
case *initproto.InitResponse_InitSuccess:
d.resp = res.GetInitSuccess()
case nil:
d.log.Debugf("Cluster returned nil response type")
err = errors.New("empty response from cluster")
if e := d.getLogs(resp); e != nil {
d.log.Debugf("Failed to collect logs: %s", e)
return &nonRetriableError{
logCollectionErr: e,
err: err,
}
}
return &nonRetriableError{err: err}
default:
d.log.Debugf("Cluster returned unknown response type")
err = errors.New("unknown response from cluster")
if e := d.getLogs(resp); e != nil {
d.log.Debugf("Failed to collect logs: %s", e)
return &nonRetriableError{
logCollectionErr: e,
err: err,
}
}
return &nonRetriableError{err: err}
}
return nil
}
func (d *initDoer) getLogs(resp initproto.API_InitClient) error {
d.log.Debugf("Attempting to collect cluster logs")
for {
res, err := resp.Recv()
if err == io.EOF {
break
}
if err != nil {
return err
}
switch res.Kind.(type) {
case *initproto.InitResponse_InitFailure:
return errors.New("trying to collect logs: received init failure response, expected log response")
case *initproto.InitResponse_InitSuccess:
return errors.New("trying to collect logs: received init success response, expected log response")
case nil:
return errors.New("trying to collect logs: received nil response, expected log response")
}
log := res.GetLog().GetLog()
if log == nil {
return errors.New("received empty logs")
}
if err := d.fh.Write(constants.ErrorLog, log, file.OptAppend); err != nil {
return err
}
}
return nil
}
func (d *initDoer) handleGRPCStateChanges(ctx context.Context, wg *sync.WaitGroup, conn *grpc.ClientConn) {
grpclog.LogStateChangesUntilReady(ctx, conn, d.log, wg, func() {
d.connectedOnce = true
d.spinner.Stop()
d.spinner.Start("Initializing cluster ", false)
})
}
func writeRow(wr io.Writer, col1 string, col2 string) {
fmt.Fprint(wr, col1, "\t", col2, "\n")
}
@ -257,22 +116,6 @@ func (c *kubeconfigMerger) kubeconfigEnvVar() string {
type grpcDialer interface {
Dial(ctx context.Context, target string) (*grpc.ClientConn, error)
}
type nonRetriableError struct {
logCollectionErr error
err error
}
// Error returns the error message.
func (e *nonRetriableError) Error() string {
return e.err.Error()
}
// Unwrap returns the wrapped error.
func (e *nonRetriableError) Unwrap() error {
return e.err
}
type helmApplier interface {
PrepareApply(
csp cloudprovider.Provider, attestationVariant variant.Variant, k8sVersion versions.ValidK8sVersion, microserviceVersion semver.Semver, stateFile *state.State,

104
cli/internal/cmd/init_test.go
View file

@ -29,6 +29,7 @@ import (
"github.com/edgelesssys/constellation/v2/internal/cloud/gcpshared"
"github.com/edgelesssys/constellation/v2/internal/config"
"github.com/edgelesssys/constellation/v2/internal/constants"
"github.com/edgelesssys/constellation/v2/internal/constellation"
"github.com/edgelesssys/constellation/v2/internal/file"
"github.com/edgelesssys/constellation/v2/internal/grpc/atlscredentials"
"github.com/edgelesssys/constellation/v2/internal/grpc/dialer"
@ -126,7 +127,7 @@ func TestInitialize(t *testing.T) {
"non retriable error": {
provider: cloudprovider.QEMU,
stateFile: preInitStateFile(cloudprovider.QEMU),
initServerAPI: &stubInitServer{initErr: &nonRetriableError{err: assert.AnError}},
initServerAPI: &stubInitServer{initErr: &constellation.NonRetriableInitError{Err: assert.AnError}},
retriable: false,
masterSecretShouldExist: true,
wantErr: true,
@ -279,7 +280,11 @@ func TestInitialize(t *testing.T) {
getClusterAttestationConfigErr: k8serrors.NewNotFound(schema.GroupResource{}, ""),
}, nil
},
applier: &stubConstellApplier{},
applier: constellation.NewApplier(
logger.NewTest(t),
&nopSpinner{},
newDialer,
),
}
err := i.apply(cmd, stubAttestationFetcher{}, "test")
@ -330,63 +335,6 @@ func (s stubRunner) SaveCharts(_ string, _ file.Handler) error {
return s.saveChartsErr
}
func TestGetLogs(t *testing.T) {
someErr := errors.New("failed")
testCases := map[string]struct {
resp initproto.API_InitClient
fh file.Handler
wantedOutput []byte
wantErr bool
}{
"success": {
resp: stubInitClient{res: bytes.NewReader([]byte("asdf"))},
fh: file.NewHandler(afero.NewMemMapFs()),
wantedOutput: []byte("asdf"),
},
"receive error": {
resp: stubInitClient{err: someErr},
fh: file.NewHandler(afero.NewMemMapFs()),
wantErr: true,
},
"nil log": {
resp: stubInitClient{res: bytes.NewReader([]byte{1}), setResNil: true},
fh: file.NewHandler(afero.NewMemMapFs()),
wantErr: true,
},
"failed write": {
resp: stubInitClient{res: bytes.NewReader([]byte("asdf"))},
fh: file.NewHandler(afero.NewReadOnlyFs(afero.NewMemMapFs())),
wantErr: true,
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
assert := assert.New(t)
doer := initDoer{
fh: tc.fh,
log: logger.NewTest(t),
}
err := doer.getLogs(tc.resp)
if tc.wantErr {
assert.Error(err)
}
text, err := tc.fh.Read(constants.ErrorLog)
if tc.wantedOutput == nil {
assert.Error(err)
}
assert.Equal(tc.wantedOutput, text)
})
}
}
func TestWriteOutput(t *testing.T) {
assert := assert.New(t)
require := require.New(t)
@ -545,6 +493,7 @@ func TestGenerateMasterSecret(t *testing.T) {
i := &applyCmd{
fileHandler: fileHandler,
log: logger.NewTest(t),
applier: constellation.NewApplier(logger.NewTest(t), &nopSpinner{}, nil),
}
secret, err := i.generateAndPersistMasterSecret(&out)
@ -647,6 +596,7 @@ func TestAttestation(t *testing.T) {
return &stubKubernetesUpgrader{}, nil
},
newDialer: newDialer,
applier: constellation.NewApplier(logger.NewTest(t), &nopSpinner{}, newDialer),
}
_, err := i.runInit(cmd, cfg, existingStateFile)
assert.Error(err)
@ -781,39 +731,3 @@ func defaultConfigWithExpectedMeasurements(t *testing.T, conf *config.Config, cs
return conf
}
type stubInitClient struct {
res io.Reader
err error
setResNil bool
grpc.ClientStream
}
func (c stubInitClient) Recv() (*initproto.InitResponse, error) {
if c.err != nil {
return &initproto.InitResponse{}, c.err
}
text := make([]byte, 1024)
n, err := c.res.Read(text)
text = text[:n]
res := &initproto.InitResponse{
Kind: &initproto.InitResponse_Log{
Log: &initproto.LogResponseType{
Log: text,
},
},
}
if c.setResNil {
res = &initproto.InitResponse{
Kind: &initproto.InitResponse_Log{
Log: &initproto.LogResponseType{
Log: nil,
},
},
}
}
return res, err
}