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Code Issues Packages Projects Releases Wiki Activity

avoid attempting to migrate old configs (#17004)

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This commit is contained in:
Harshavardhana 2023-04-21 13:56:08 -07:00 committed by GitHub
parent d1737199ed
commit 477230c82e
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 143 additions and 739 deletions
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215
cmd/config-encrypted.go
View file

@ -1,215 +0,0 @@
// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"bytes"
"context"
"fmt"
"path"
"time"
"unicode/utf8"
"github.com/minio/madmin-go/v2"
"github.com/minio/minio/internal/config"
"github.com/minio/minio/internal/kms"
"github.com/minio/minio/internal/logger"
etcd "go.etcd.io/etcd/client/v3"
)
func handleEncryptedConfigBackend(objAPI ObjectLayer) error {
encrypted, err := checkBackendEncrypted(objAPI)
if err != nil {
return fmt.Errorf("Unable to encrypt config %w", err)
}
if !encrypted {
return nil
}
if err = migrateConfigPrefixToEncrypted(objAPI); err != nil {
return fmt.Errorf("Unable to migrate all config at .minio.sys/config/: %w", err)
}
return nil
}
const backendEncryptedFile = "backend-encrypted"
var backendEncryptedMigrationComplete = []byte("encrypted")
func checkBackendEtcdEncrypted(ctx context.Context, client *etcd.Client) (bool, error) {
bootstrapTrace("check if etcd backend is encrypted")
data, err := readKeyEtcd(ctx, client, backendEncryptedFile)
if err != nil && err != errConfigNotFound {
return false, err
}
return err == nil && bytes.Equal(data, backendEncryptedMigrationComplete), nil
}
func checkBackendEncrypted(objAPI ObjectLayer) (bool, error) {
bootstrapTrace("check if the config backend is encrypted")
data, err := readConfig(GlobalContext, objAPI, backendEncryptedFile)
if err != nil && err != errConfigNotFound {
return false, err
}
return err == nil && bytes.Equal(data, backendEncryptedMigrationComplete), nil
}
func migrateIAMConfigsEtcdToEncrypted(ctx context.Context, client *etcd.Client) error {
encrypted, err := checkBackendEtcdEncrypted(ctx, client)
if err != nil {
return err
}
// If backend doesn't have this file means we have already
// attempted then migration
if !encrypted {
return nil
}
bootstrapTrace("encrypt etcd config")
if GlobalKMS != nil {
stat, err := GlobalKMS.Stat(ctx)
if err != nil {
return err
}
logger.Info(fmt.Sprintf("Attempting to re-encrypt IAM users and policies on etcd with %q (%s)", stat.DefaultKey, stat.Name))
}
listCtx, cancel := context.WithTimeout(ctx, 1*time.Minute)
defer cancel()
r, err := client.Get(listCtx, minioConfigPrefix, etcd.WithPrefix(), etcd.WithKeysOnly())
if err != nil {
return err
}
for _, kv := range r.Kvs {
data, err := readKeyEtcd(ctx, client, string(kv.Key))
if err == errConfigNotFound { // Perhaps not present or someone deleted it.
continue
}
if err != nil {
return err
}
if !utf8.Valid(data) {
pdata, err := madmin.DecryptData(globalActiveCred.String(), bytes.NewReader(data))
if err != nil {
if GlobalKMS != nil {
pdata, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: path.Join(minioMetaBucket, string(kv.Key)),
})
if err != nil {
pdata, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: string(kv.Key),
})
if err != nil {
return fmt.Errorf("Decrypting IAM config failed %w, possibly credentials are incorrect", err)
}
}
} else {
return fmt.Errorf("Decrypting IAM config failed %w, possibly credentials are incorrect", err)
}
}
data = pdata
}
if GlobalKMS != nil {
data, err = config.EncryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: path.Join(minioMetaBucket, string(kv.Key)),
})
if err != nil {
return err
}
}
if err = saveKeyEtcd(ctx, client, string(kv.Key), data); err != nil {
return err
}
}
if GlobalKMS != nil {
logger.Info("Migration of encrypted IAM config data completed. All data is now encrypted on etcd.")
}
return deleteKeyEtcd(ctx, client, backendEncryptedFile)
}
func migrateConfigPrefixToEncrypted(objAPI ObjectLayer) error {
bootstrapTrace("migrating config prefix to encrypted")
if GlobalKMS != nil {
stat, err := GlobalKMS.Stat(context.Background())
if err != nil {
return err
}
logger.Info(fmt.Sprintf("Attempting to re-encrypt config, IAM users and policies on MinIO with %q (%s)", stat.DefaultKey, stat.Name))
}
results := make(chan ObjectInfo)
if err := objAPI.Walk(GlobalContext, minioMetaBucket, minioConfigPrefix, results, ObjectOptions{}); err != nil {
return err
}
for obj := range results {
data, err := readConfig(GlobalContext, objAPI, obj.Name)
if err != nil {
return err
}
if !utf8.Valid(data) {
pdata, err := madmin.DecryptData(globalActiveCred.String(), bytes.NewReader(data))
if err != nil {
if GlobalKMS != nil {
pdata, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: path.Join(minioMetaBucket, obj.Name),
})
if err != nil {
pdata, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: obj.Name,
})
if err != nil {
return fmt.Errorf("Decrypting IAM config failed %w, possibly credentials are incorrect", err)
}
}
} else {
return fmt.Errorf("Decrypting IAM config failed %w, possibly credentials are incorrect", err)
}
}
data = pdata
}
if GlobalKMS != nil {
data, err = config.EncryptBytes(GlobalKMS, data, kms.Context{
obj.Bucket: path.Join(obj.Bucket, obj.Name),
})
if err != nil {
return err
}
}
if err = saveConfig(GlobalContext, objAPI, obj.Name, data); err != nil {
return err
}
}
if GlobalKMS != nil {
logger.Info("Migration of encrypted config data completed. All config data is now encrypted.")
}
return deleteConfig(GlobalContext, objAPI, backendEncryptedFile)
}

341
cmd/config-migrate.go
View file

@ -18,16 +18,15 @@
package cmd
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"os"
"path"
"path/filepath"
"strings"
"unicode/utf8"
"github.com/minio/madmin-go/v2"
"github.com/minio/minio/internal/auth"
"github.com/minio/minio/internal/config"
"github.com/minio/minio/internal/config/cache"
@ -39,7 +38,6 @@ import (
"github.com/minio/minio/internal/config/storageclass"
"github.com/minio/minio/internal/event"
"github.com/minio/minio/internal/event/target"
"github.com/minio/minio/internal/kms"
"github.com/minio/minio/internal/logger"
"github.com/minio/minio/internal/logger/target/http"
xnet "github.com/minio/pkg/net"
@ -2471,284 +2469,91 @@ func migrateConfigToMinioSys(objAPI ObjectLayer) (err error) {
return saveServerConfig(GlobalContext, objAPI, config)
}
// Migrates '.minio.sys/config.json' to v33.
func migrateMinioSysConfig(objAPI ObjectLayer) error {
bootstrapTrace("migrate .minio.sys/config/config.json to latest version")
func readConfigWithoutMigrate(ctx context.Context, objAPI ObjectLayer) (config.Config, error) {
// Construct path to config.json for the given bucket.
configFile := path.Join(minioConfigPrefix, minioConfigFile)
// Check if the config version is latest, if not migrate.
ok, _, err := checkConfigVersion(objAPI, configFile, "33")
if err != nil {
return err
}
if ok {
return nil
configFiles := []string{
getConfigFile(),
getConfigFile() + ".deprecated",
configFile,
}
if err := migrateV27ToV28MinioSys(objAPI); err != nil {
return err
}
if err := migrateV28ToV29MinioSys(objAPI); err != nil {
return err
}
if err := migrateV29ToV30MinioSys(objAPI); err != nil {
return err
}
if err := migrateV30ToV31MinioSys(objAPI); err != nil {
return err
}
if err := migrateV31ToV32MinioSys(objAPI); err != nil {
return err
}
return migrateV32ToV33MinioSys(objAPI)
}
newServerCfg := func() (config.Config, error) {
// Initialize server config.
srvCfg := newServerConfig()
func checkConfigVersion(objAPI ObjectLayer, configFile string, version string) (bool, []byte, error) {
data, err := readConfig(GlobalContext, objAPI, configFile)
if err != nil {
return false, nil, err
return srvCfg, saveServerConfig(ctx, objAPI, srvCfg)
}
if !utf8.Valid(data) {
if GlobalKMS != nil {
data, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: path.Join(minioMetaBucket, configFile),
})
}
var data []byte
var err error
if GlobalKMS == nil && err != nil {
data, err = madmin.DecryptData(globalActiveCred.String(), bytes.NewReader(data))
if err != nil {
if err == madmin.ErrMaliciousData || err == madmin.ErrUnexpectedHeader {
return false, nil, config.ErrInvalidConfigDecryptionKey(nil)
}
return false, nil, err
cfg := &serverConfigV33{}
for _, cfgFile := range configFiles {
if _, err = Load(cfgFile, cfg); err != nil {
if !osIsNotExist(err) && !osIsPermission(err) {
return nil, err
}
continue
}
data, _ = json.Marshal(cfg)
break
}
if osIsPermission(err) {
logger.Info("Older config found but is not readable %s, proceeding to read config from other places", err)
}
if osIsNotExist(err) || osIsPermission(err) || len(data) == 0 {
data, err = readConfig(GlobalContext, objAPI, configFile)
if err != nil {
// when config.json is not found, then we freshly initialize.
if errors.Is(err, errConfigNotFound) {
return newServerCfg()
}
return nil, err
}
data, err = decryptData(data, configFile)
if err != nil {
return nil, err
}
newCfg, err := readServerConfig(GlobalContext, objAPI, data)
if err == nil {
return newCfg, nil
}
// Read older `.minio.sys/config/config.json`, if not
// possible just fail.
if err = json.Unmarshal(data, cfg); err != nil {
// Unable to parse old JSON simply re-initialize a new one.
return newServerCfg()
}
}
if version == "kvs" {
// Check api config values are present.
var vcfg struct {
API struct {
E []struct {
Key string `json:"key"`
Value string `json:"value"`
} `json:"_"`
} `json:"api"`
// Init compression config. For future migration, Compression config needs to be copied over from previous version.
switch cfg.Version {
case "29":
// V29 -> V30
cfg.Compression.Enabled = false
cfg.Compression.Extensions = strings.Split(compress.DefaultExtensions, config.ValueSeparator)
cfg.Compression.MimeTypes = strings.Split(compress.DefaultMimeTypes, config.ValueSeparator)
case "30":
// V30 -> V31
cfg.OpenID = openid.Config{}
cfg.Policy.OPA = opa.Args{
URL: &xnet.URL{},
AuthToken: "",
}
if err = json.Unmarshal(data, &vcfg); err != nil {
return false, nil, nil
}
return len(vcfg.API.E) > 0, data, nil
}
var versionConfig struct {
Version string `json:"version"`
}
vcfg := &versionConfig
if err = json.Unmarshal(data, vcfg); err != nil {
return false, nil, err
}
return vcfg.Version == version, data, nil
}
func migrateV27ToV28MinioSys(objAPI ObjectLayer) error {
configFile := path.Join(minioConfigPrefix, minioConfigFile)
ok, data, err := checkConfigVersion(objAPI, configFile, "27")
if err == errConfigNotFound {
return nil
} else if err != nil {
return fmt.Errorf("Unable to load config file. %w", err)
}
if !ok {
return nil
}
cfg := &serverConfigV28{}
if err = json.Unmarshal(data, cfg); err != nil {
return err
}
cfg.Version = "28"
if err = saveServerConfig(GlobalContext, objAPI, cfg); err != nil {
return fmt.Errorf("Failed to migrate config from ‘27’ to ‘28’. %w", err)
}
logger.Info(configMigrateMSGTemplate, configFile, "27", "28")
return nil
}
func migrateV28ToV29MinioSys(objAPI ObjectLayer) error {
configFile := path.Join(minioConfigPrefix, minioConfigFile)
ok, data, err := checkConfigVersion(objAPI, configFile, "28")
if err == errConfigNotFound {
return nil
} else if err != nil {
return fmt.Errorf("Unable to load config file. %w", err)
}
if !ok {
return nil
}
cfg := &serverConfigV29{}
if err = json.Unmarshal(data, cfg); err != nil {
return err
}
cfg.Version = "29"
if err = saveServerConfig(GlobalContext, objAPI, cfg); err != nil {
return fmt.Errorf("Failed to migrate config from ‘28’ to ‘29’. %w", err)
}
logger.Info(configMigrateMSGTemplate, configFile, "28", "29")
return nil
}
func migrateV29ToV30MinioSys(objAPI ObjectLayer) error {
configFile := path.Join(minioConfigPrefix, minioConfigFile)
ok, data, err := checkConfigVersion(objAPI, configFile, "29")
if err == errConfigNotFound {
return nil
} else if err != nil {
return fmt.Errorf("Unable to load config file. %w", err)
}
if !ok {
return nil
}
cfg := &serverConfigV30{}
if err = json.Unmarshal(data, cfg); err != nil {
return err
}
cfg.Version = "30"
// Init compression config.For future migration, Compression config needs to be copied over from previous version.
cfg.Compression.Enabled = false
cfg.Compression.Extensions = strings.Split(compress.DefaultExtensions, config.ValueSeparator)
cfg.Compression.MimeTypes = strings.Split(compress.DefaultMimeTypes, config.ValueSeparator)
if err = saveServerConfig(GlobalContext, objAPI, cfg); err != nil {
return fmt.Errorf("Failed to migrate config from ‘29’ to ‘30’. %w", err)
}
logger.Info(configMigrateMSGTemplate, configFile, "29", "30")
return nil
}
func migrateV30ToV31MinioSys(objAPI ObjectLayer) error {
configFile := path.Join(minioConfigPrefix, minioConfigFile)
ok, data, err := checkConfigVersion(objAPI, configFile, "30")
if err == errConfigNotFound {
return nil
} else if err != nil {
return fmt.Errorf("Unable to load config file. %w", err)
}
if !ok {
return nil
}
cfg := &serverConfigV31{}
if err = json.Unmarshal(data, cfg); err != nil {
return err
}
cfg.Version = "31"
cfg.OpenID = openid.Config{}
cfg.Policy.OPA = opa.Args{
URL: &xnet.URL{},
AuthToken: "",
}
if err = saveServerConfig(GlobalContext, objAPI, cfg); err != nil {
return fmt.Errorf("Failed to migrate config from ‘30’ to ‘31’. %w", err)
}
logger.Info(configMigrateMSGTemplate, configFile, "30", "31")
return nil
}
func migrateV31ToV32MinioSys(objAPI ObjectLayer) error {
configFile := path.Join(minioConfigPrefix, minioConfigFile)
ok, data, err := checkConfigVersion(objAPI, configFile, "31")
if err == errConfigNotFound {
return nil
} else if err != nil {
return fmt.Errorf("Unable to load config file. %w", err)
}
if !ok {
return nil
}
cfg := &serverConfigV32{}
if err = json.Unmarshal(data, cfg); err != nil {
return err
}
cfg.Version = "32"
cfg.Notify.NSQ = make(map[string]target.NSQArgs)
cfg.Notify.NSQ["1"] = target.NSQArgs{}
if err = saveServerConfig(GlobalContext, objAPI, cfg); err != nil {
return fmt.Errorf("Failed to migrate config from ‘31’ to ‘32’. %w", err)
}
logger.Info(configMigrateMSGTemplate, configFile, "31", "32")
return nil
}
func migrateV32ToV33MinioSys(objAPI ObjectLayer) error {
configFile := path.Join(minioConfigPrefix, minioConfigFile)
ok, data, err := checkConfigVersion(objAPI, configFile, "32")
if err == errConfigNotFound {
return nil
} else if err != nil {
return fmt.Errorf("Unable to load config file. %w", err)
}
if !ok {
return nil
}
cfg := &serverConfigV33{}
if err = json.Unmarshal(data, cfg); err != nil {
return err
case "31":
// V31 -> V32
cfg.Notify.NSQ = make(map[string]target.NSQArgs)
cfg.Notify.NSQ["1"] = target.NSQArgs{}
}
// Move to latest.
cfg.Version = "33"
if err = saveServerConfig(GlobalContext, objAPI, cfg); err != nil {
return fmt.Errorf("Failed to migrate config from '32' to '33' . %w", err)
}
logger.Info(configMigrateMSGTemplate, configFile, "32", "33")
return nil
}
func migrateMinioSysConfigToKV(objAPI ObjectLayer) error {
bootstrapTrace("migrate config to KV style")
configFile := path.Join(minioConfigPrefix, minioConfigFile)
// Check if the config version is latest, if not migrate.
ok, data, err := checkConfigVersion(objAPI, configFile, "33")
if err != nil {
return err
}
if !ok {
return nil
}
cfg := &serverConfigV33{}
if err = json.Unmarshal(data, cfg); err != nil {
return err
}
newCfg := newServerConfig()
config.SetRegion(newCfg, cfg.Region)
@ -2797,11 +2602,5 @@ func migrateMinioSysConfigToKV(objAPI ObjectLayer) error {
notify.SetNotifyWebhook(newCfg, k, args)
}
if err = saveServerConfig(GlobalContext, objAPI, newCfg); err != nil {
return err
}
logger.Info("Configuration file %s migrated from version '%s' to new KV format successfully.",
configFile, "33")
return nil
return newCfg, nil
}

5
cmd/config-migrate_test.go
View file

@ -196,11 +196,12 @@ func TestServerConfigMigrateV2toV33(t *testing.T) {
t.Fatal("Unexpected error: ", err)
}
if err := migrateMinioSysConfig(objLayer); err != nil {
srvCfg, err := readConfigWithoutMigrate(context.Background(), objLayer)
if err != nil {
t.Fatal("Unexpected error: ", err)
}
if err := migrateMinioSysConfigToKV(objLayer); err != nil {
if err = saveServerConfig(GlobalContext, objLayer, srvCfg); err != nil {
t.Fatal("Unexpected error: ", err)
}

101
cmd/config-versions.go
View file

@ -717,107 +717,6 @@ type serverConfigV28 struct {
Logger logger.Config `json:"logger"`
}
// serverConfigV29 is just like version '28'.
type serverConfigV29 serverConfigV28
// serverConfigV30 is just like version '29', stores additionally
// extensions and mimetypes fields for compression.
type serverConfigV30 struct {
Version string `json:"version"`
// S3 API configuration.
Credential auth.Credentials `json:"credential"`
Region string `json:"region"`
Worm config.BoolFlag `json:"worm"`
// Storage class configuration
StorageClass storageclass.Config `json:"storageclass"`
// Cache configuration
Cache cache.Config `json:"cache"`
// Notification queue configuration.
Notify notifierV3 `json:"notify"`
// Logger configuration
Logger logger.Config `json:"logger"`
// Compression configuration
Compression compress.Config `json:"compress"`
}
// serverConfigV31 is just like version '30', with OPA and OpenID configuration.
type serverConfigV31 struct {
Version string `json:"version"`
// S3 API configuration.
Credential auth.Credentials `json:"credential"`
Region string `json:"region"`
Worm config.BoolFlag `json:"worm"`
// Storage class configuration
StorageClass storageclass.Config `json:"storageclass"`
// Cache configuration
Cache cache.Config `json:"cache"`
// Notification queue configuration.
Notify notifierV3 `json:"notify"`
// Logger configuration
Logger logger.Config `json:"logger"`
// Compression configuration
Compression compress.Config `json:"compress"`
// OpenID configuration
OpenID openid.Config `json:"openid"`
// External policy enforcements.
Policy struct {
// OPA configuration.
OPA opa.Args `json:"opa"`
// Add new external policy enforcements here.
} `json:"policy"`
}
// serverConfigV32 is just like version '31' with added nsq notifer.
type serverConfigV32 struct {
Version string `json:"version"`
// S3 API configuration.
Credential auth.Credentials `json:"credential"`
Region string `json:"region"`
Worm config.BoolFlag `json:"worm"`
// Storage class configuration
StorageClass storageclass.Config `json:"storageclass"`
// Cache configuration
Cache cache.Config `json:"cache"`
// Notification queue configuration.
Notify notify.Config `json:"notify"`
// Logger configuration
Logger logger.Config `json:"logger"`
// Compression configuration
Compression compress.Config `json:"compress"`
// OpenID configuration
OpenID openid.Config `json:"openid"`
// External policy enforcements.
Policy struct {
// OPA configuration.
OPA opa.Args `json:"opa"`
// Add new external policy enforcements here.
} `json:"policy"`
}
// serverConfigV33 is just like version '32', removes clientID from NATS and MQTT, and adds queueDir, queueLimit in all notification targets.
type serverConfigV33 struct {
quick.Config `json:"-"` // ignore interfaces

83
cmd/config.go
View file

@ -25,7 +25,6 @@ import (
"path"
"sort"
"strings"
"unicode/utf8"
jsoniter "github.com/json-iterator/go"
"github.com/minio/madmin-go/v2"
@ -65,16 +64,16 @@ func listServerConfigHistory(ctx context.Context, objAPI ObjectLayer, withData b
if withData {
data, err := readConfig(ctx, objAPI, obj.Name)
if err != nil {
return nil, err
// ignore history file if not readable.
continue
}
if GlobalKMS != nil {
data, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
obj.Bucket: path.Join(obj.Bucket, obj.Name),
})
if err != nil {
return nil, err
}
data, err = decryptData(data, obj.Name)
if err != nil {
// ignore history file that cannot be loaded.
continue
}
cfgEntry.Data = string(data)
}
configHistory = append(configHistory, cfgEntry)
@ -110,12 +109,7 @@ func readServerConfigHistory(ctx context.Context, objAPI ObjectLayer, uuidKV str
return nil, err
}
if GlobalKMS != nil {
data, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: path.Join(minioMetaBucket, historyFile),
})
}
return data, err
return decryptData(data, historyFile)
}
func saveServerConfigHistory(ctx context.Context, objAPI ObjectLayer, kv []byte) error {
@ -167,14 +161,10 @@ func readServerConfig(ctx context.Context, objAPI ObjectLayer, data []byte) (con
return nil, err
}
if GlobalKMS != nil && !utf8.Valid(data) {
data, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: path.Join(minioMetaBucket, configFile),
})
if err != nil {
lookupConfigs(srvCfg, objAPI)
return nil, err
}
data, err = decryptData(data, configFile)
if err != nil {
lookupConfigs(srvCfg, objAPI)
return nil, err
}
}
@ -205,47 +195,32 @@ func NewConfigSys() *ConfigSys {
}
// Initialize and load config from remote etcd or local config directory
func initConfig(objAPI ObjectLayer) error {
func initConfig(objAPI ObjectLayer) (err error) {
bootstrapTrace("load the configuration")
defer func() {
if err != nil {
bootstrapTrace(fmt.Sprintf("loading configuration failed: %v", err))
}
}()
if objAPI == nil {
return errServerNotInitialized
}
if isFile(getConfigFile()) {
if err := migrateConfig(); err != nil {
return err
}
}
// Check if the config version is latest (kvs), if not migrate.
ok, data, err := checkConfigVersion(objAPI, path.Join(minioConfigPrefix, minioConfigFile), "kvs")
if err != nil && !errors.Is(err, errConfigNotFound) {
srvCfg, err := readConfigWithoutMigrate(GlobalContext, objAPI)
if err != nil {
return err
}
if ok {
return loadConfig(objAPI, data)
}
// Migrates ${HOME}/.minio/config.json or config.json.deprecated
// to '<export_path>/.minio.sys/config/config.json'
// ignore if the file doesn't exist.
// If etcd is set then migrates /config/config.json
// to '<export_path>/.minio.sys/config/config.json'
if err := migrateConfigToMinioSys(objAPI); err != nil {
return fmt.Errorf("migrateConfigToMinioSys: %w", err)
}
bootstrapTrace("lookup the configuration")
// Migrates backend '<export_path>/.minio.sys/config/config.json' to latest version.
if err := migrateMinioSysConfig(objAPI); err != nil {
return fmt.Errorf("migrateMinioSysConfig: %w", err)
}
// Override any values from ENVs.
lookupConfigs(srvCfg, objAPI)
// Migrates backend '<export_path>/.minio.sys/config/config.json' to
// latest config format.
if err := migrateMinioSysConfigToKV(objAPI); err != nil {
return fmt.Errorf("migrateMinioSysConfigToKV: %w", err)
}
// hold the mutex lock before a new config is assigned.
globalServerConfigMu.Lock()
globalServerConfig = srvCfg
globalServerConfigMu.Unlock()
return loadConfig(objAPI, nil)
return nil
}

21
cmd/iam-etcd-store.go
View file

@ -25,7 +25,6 @@ import (
"strings"
"sync"
"time"
"unicode/utf8"
jsoniter "github.com/json-iterator/go"
"github.com/minio/minio-go/v7/pkg/set"
@ -115,26 +114,6 @@ func (ies *IAMEtcdStore) saveIAMConfig(ctx context.Context, item interface{}, it
return saveKeyEtcd(ctx, ies.client, itemPath, data, opts...)
}
func decryptData(data []byte, itemPath string) ([]byte, error) {
var err error
if !utf8.Valid(data) && GlobalKMS != nil {
data, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: path.Join(minioMetaBucket, itemPath),
})
if err != nil {
// This fallback is needed because of a bug, in kms.Context{}
// construction during migration.
data, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: itemPath,
})
if err != nil {
return nil, err
}
}
}
return data, nil
}
func getIAMConfig(item interface{}, data []byte, itemPath string) error {
data, err := decryptData(data, itemPath)
if err != nil {

38
cmd/iam-object-store.go
View file

@ -18,6 +18,7 @@
package cmd
import (
"bytes"
"context"
"errors"
"fmt"
@ -27,6 +28,7 @@ import (
"unicode/utf8"
jsoniter "github.com/json-iterator/go"
"github.com/minio/madmin-go/v2"
"github.com/minio/minio/internal/config"
"github.com/minio/minio/internal/kms"
"github.com/minio/minio/internal/logger"
@ -91,18 +93,40 @@ func (iamOS *IAMObjectStore) saveIAMConfig(ctx context.Context, item interface{}
return saveConfig(ctx, iamOS.objAPI, objPath, data)
}
func decryptData(data []byte, objPath string) ([]byte, error) {
if utf8.Valid(data) {
return data, nil
}
pdata, err := madmin.DecryptData(globalActiveCred.String(), bytes.NewReader(data))
if err == nil {
return pdata, nil
}
if GlobalKMS != nil {
pdata, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: path.Join(minioMetaBucket, objPath),
})
if err == nil {
return pdata, nil
}
pdata, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: objPath,
})
if err == nil {
return pdata, nil
}
}
return nil, err
}
func (iamOS *IAMObjectStore) loadIAMConfigBytesWithMetadata(ctx context.Context, objPath string) ([]byte, ObjectInfo, error) {
data, meta, err := readConfigWithMetadata(ctx, iamOS.objAPI, objPath, ObjectOptions{})
if err != nil {
return nil, meta, err
}
if !utf8.Valid(data) && GlobalKMS != nil {
data, err = config.DecryptBytes(GlobalKMS, data, kms.Context{
minioMetaBucket: path.Join(minioMetaBucket, objPath),
})
if err != nil {
return nil, meta, err
}
data, err = decryptData(data, objPath)
if err != nil {
return nil, meta, err
}
return data, meta, nil
}

15
cmd/iam.go
View file

@ -286,21 +286,6 @@ func (sys *IAMSys) Init(ctx context.Context, objAPI ObjectLayer, etcdClient *etc
// Migrate storage format if needed.
for {
if etcdClient != nil {
// **** WARNING ****
// Migrating to encrypted backend on etcd should happen before initialization of
// IAM sub-system, make sure that we do not move the above codeblock elsewhere.
if err := migrateIAMConfigsEtcdToEncrypted(retryCtx, etcdClient); err != nil {
if errors.Is(err, errEtcdUnreachable) {
logger.Info("Connection to etcd timed out. Retrying..")
continue
}
logger.LogIf(ctx, fmt.Errorf("Unable to decrypt an encrypted ETCD backend for IAM users and policies: %w", err))
logger.LogIf(ctx, errors.New("IAM sub-system is partially initialized, some users may not be available"))
return
}
}
// Migrate IAM configuration, if necessary.
if err := saveIAMFormat(retryCtx, sys.store); err != nil {
if configRetriableErrors(err) {

63
cmd/server-main.go
View file

@ -382,17 +382,8 @@ func initServer(ctx context.Context, newObject ObjectLayer) error {
// Once the config is fully loaded, initialize the new object layer.
setObjectLayer(newObject)
// **** WARNING ****
// Migrating to encrypted backend should happen before initialization of any
// sub-systems, make sure that we do not move the above codeblock elsewhere.
r := rand.New(rand.NewSource(time.Now().UnixNano()))
lockTimeout := newDynamicTimeoutWithOpts(dynamicTimeoutOpts{
timeout: 5 * time.Second,
minimum: 3 * time.Second,
})
for {
select {
case <-ctx.Done():
@ -401,57 +392,23 @@ func initServer(ctx context.Context, newObject ObjectLayer) error {
default:
}
bootstrapTrace("trying to acquire transaction.lock")
// Make sure to hold lock for entire migration to avoid
// such that only one server should migrate the entire config
// at a given time, this big transaction lock ensures this
// appropriately. This is also true for rotation of encrypted
// content.
txnLk := newObject.NewNSLock(minioMetaBucket, minioConfigPrefix+"/transaction.lock")
// let one of the server acquire the lock, if not let them timeout.
// which shall be retried again by this loop.
lkctx, err := txnLk.GetLock(ctx, lockTimeout)
if err != nil {
logger.Info("Waiting for all MinIO sub-systems to be initialized.. trying to acquire lock")
waitDuration := time.Duration(r.Float64() * 5 * float64(time.Second))
bootstrapTrace(fmt.Sprintf("lock not available. error: %v. sleeping for %v before retry", err, waitDuration))
// Sleep 0 -> 5 seconds, provider a higher range such that sleeps()
// and retries for lock are more spread out, needed orchestrated
// systems take 30s minimum to respond to DNS resolvers.
//
// Do not change this value.
time.Sleep(waitDuration)
continue
}
// These messages only meant primarily for distributed setup, so only log during distributed setup.
if globalIsDistErasure {
logger.Info("Waiting for all MinIO sub-systems to be initialized.. lock acquired")
logger.Info("Waiting for all MinIO sub-systems to be initialize...")
}
// Migrate all backend configs to encrypted backend configs, optionally
// handles rotating keys for encryption, if there is any retriable failure
// that shall be retried if there is an error.
if err = handleEncryptedConfigBackend(newObject); err == nil {
// Upon success migrating the config, initialize all sub-systems
// if all sub-systems initialized successfully return right away
if err = initConfigSubsystem(lkctx.Context(), newObject); err == nil {
txnLk.Unlock(lkctx)
// All successful return.
if globalIsDistErasure {
// These messages only meant primarily for distributed setup, so only log during distributed setup.
logger.Info("All MinIO sub-systems initialized successfully in %s", time.Since(t1))
}
return nil
// Upon success migrating the config, initialize all sub-systems
// if all sub-systems initialized successfully return right away
err := initConfigSubsystem(ctx, newObject)
if err == nil {
// All successful return.
if globalIsDistErasure {
// These messages only meant primarily for distributed setup, so only log during distributed setup.
logger.Info("All MinIO sub-systems initialized successfully in %s", time.Since(t1))
}
return nil
}
// Unlock the transaction lock and allow other nodes to acquire the lock if possible.
txnLk.Unlock(lkctx)
if configRetriableErrors(err) {
logger.Info("Waiting for all MinIO sub-systems to be initialized.. possible cause (%v)", err)
time.Sleep(time.Duration(r.Float64() * float64(5*time.Second)))