constellation/keyservice/cmd/main.go
Daniel Weiße 3a7b829107
internal: use go-kms-wrapping for KMS backends (#1012)
* Replace external KMS backend logic for AWS, Azure, and GCP with go-kms-wrapping

* Move kms client setup config into its own package for easier parsing

* Update kms integration flag naming

* Error if nil storage is passed to external KMS

---------

Signed-off-by: Daniel Weiße <dw@edgeless.systems>
2023-02-08 12:03:54 +01:00

70 lines
2.5 KiB
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package main
import (
"context"
"errors"
"flag"
"path/filepath"
"strconv"
"time"
"github.com/edgelesssys/constellation/v2/internal/constants"
"github.com/edgelesssys/constellation/v2/internal/crypto"
"github.com/edgelesssys/constellation/v2/internal/file"
"github.com/edgelesssys/constellation/v2/internal/kms/setup"
"github.com/edgelesssys/constellation/v2/internal/logger"
"github.com/edgelesssys/constellation/v2/keyservice/internal/server"
"github.com/spf13/afero"
"go.uber.org/zap"
)
func main() {
port := flag.String("port", strconv.Itoa(constants.KeyServicePort), "Port gRPC server listens on")
masterSecretPath := flag.String("master-secret", filepath.Join(constants.ServiceBasePath, constants.ConstellationMasterSecretKey), "Path to the Constellation master secret")
saltPath := flag.String("salt", filepath.Join(constants.ServiceBasePath, constants.ConstellationSaltKey), "Path to the Constellation salt")
verbosity := flag.Int("v", 0, logger.CmdLineVerbosityDescription)
flag.Parse()
log := logger.New(logger.JSONLog, logger.VerbosityFromInt(*verbosity))
log.With(zap.String("version", constants.VersionInfo)).
Infof("Constellation Key Management Service")
// read master secret and salt
file := file.NewHandler(afero.NewOsFs())
masterKey, err := file.Read(*masterSecretPath)
if err != nil {
log.With(zap.Error(err)).Fatalf("Failed to read master secret")
}
if len(masterKey) < crypto.MasterSecretLengthMin {
log.With(zap.Error(errors.New("invalid key length"))).Fatalf("Provided master secret is smaller than the required minimum of %d bytes", crypto.MasterSecretLengthMin)
}
salt, err := file.Read(*saltPath)
if err != nil {
log.With(zap.Error(err)).Fatalf("Failed to read salt")
}
if len(salt) < crypto.RNGLengthDefault {
log.With(zap.Error(errors.New("invalid salt length"))).Fatalf("Expected salt to be %d bytes, but got %d", crypto.RNGLengthDefault, len(salt))
}
masterSecret := setup.MasterSecret{Key: masterKey, Salt: salt}
// set up Key Management Service
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Minute)
defer cancel()
conKMS, err := setup.KMS(ctx, setup.NoStoreURI, masterSecret.EncodeToURI())
if err != nil {
log.With(zap.Error(err)).Fatalf("Failed to setup KMS")
}
defer conKMS.Close()
if err := server.New(log.Named("keyService"), conKMS).Run(*port); err != nil {
log.With(zap.Error(err)).Fatalf("Failed to run key-service server")
}
}