minio/cmd/config-migrate.go
2016-09-21 09:44:57 -07:00

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/*
* Minio Cloud Storage, (C) 2016 Minio, Inc.
*
* 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.
*/
package cmd
import (
"fmt"
"os"
"path/filepath"
"github.com/minio/mc/pkg/console"
"github.com/minio/minio/pkg/quick"
)
func migrateConfig() error {
// Purge all configs with version '1'.
if err := purgeV1(); err != nil {
return err
}
// Migrate version '2' to '3'.
if err := migrateV2ToV3(); err != nil {
return err
}
// Migrate version '3' to '4'.
if err := migrateV3ToV4(); err != nil {
return err
}
// Migrate version '4' to '5'.
if err := migrateV4ToV5(); err != nil {
return err
}
// Migrate version '5' to '6.
if err := migrateV5ToV6(); err != nil {
return err
}
// Migrate version '6' to '7'.
if err := migrateV6ToV7(); err != nil {
return err
}
return nil
}
// Version '1' is not supported anymore and deprecated, safe to delete.
func purgeV1() error {
cv1, err := loadConfigV1()
if err != nil {
if os.IsNotExist(err) {
return nil
}
return fmt.Errorf("Unable to load config version 1. %v", err)
}
if cv1.Version == "1" {
console.Println("Removed unsupported config version 1.")
/// Purge old fsUsers.json file
configPath, err := getConfigPath()
if err != nil {
return fmt.Errorf("Unable to retrieve config path. %v", err)
}
configFile := filepath.Join(configPath, "fsUsers.json")
removeAll(configFile)
return nil
}
return fmt.Errorf("Failed to migrate unrecognized config version " + cv1.Version + ".")
}
// Version '2' to '3' config migration adds new fields and re-orders
// previous fields. Simplifies config for future additions.
func migrateV2ToV3() error {
cv2, err := loadConfigV2()
if err != nil {
if os.IsNotExist(err) {
return nil
}
return fmt.Errorf("Unable to load config version 2. %v", err)
}
if cv2.Version != "2" {
return nil
}
srvConfig := &configV3{}
srvConfig.Version = "3"
srvConfig.Addr = ":9000"
srvConfig.Credential = credential{
AccessKeyID: cv2.Credentials.AccessKeyID,
SecretAccessKey: cv2.Credentials.SecretAccessKey,
}
srvConfig.Region = cv2.Credentials.Region
if srvConfig.Region == "" {
// Region needs to be set for AWS Signature V4.
srvConfig.Region = "us-east-1"
}
srvConfig.Logger.Console = consoleLogger{
Enable: true,
Level: "fatal",
}
flogger := fileLogger{}
flogger.Level = "error"
if cv2.FileLogger.Filename != "" {
flogger.Enable = true
flogger.Filename = cv2.FileLogger.Filename
}
srvConfig.Logger.File = flogger
slogger := syslogLogger{}
slogger.Level = "debug"
if cv2.SyslogLogger.Addr != "" {
slogger.Enable = true
slogger.Addr = cv2.SyslogLogger.Addr
}
srvConfig.Logger.Syslog = slogger
qc, err := quick.New(srvConfig)
if err != nil {
return fmt.Errorf("Unable to initialize config. %v", err)
}
configFile, err := getConfigFile()
if err != nil {
return fmt.Errorf("Unable to get config file. %v", err)
}
// Migrate the config.
err = qc.Save(configFile)
if err != nil {
return fmt.Errorf("Failed to migrate config from "+cv2.Version+" to "+srvConfig.Version+" failed. %v", err)
}
console.Println("Migration from version " + cv2.Version + " to " + srvConfig.Version + " completed successfully.")
return nil
}
// Version '3' to '4' migrates config, removes previous fields related
// to backend types and server address. This change further simplifies
// the config for future additions.
func migrateV3ToV4() error {
cv3, err := loadConfigV3()
if err != nil {
if os.IsNotExist(err) {
return nil
}
return fmt.Errorf("Unable to load config version 3. %v", err)
}
if cv3.Version != "3" {
return nil
}
// Save only the new fields, ignore the rest.
srvConfig := &configV4{}
srvConfig.Version = "4"
srvConfig.Credential = cv3.Credential
srvConfig.Region = cv3.Region
if srvConfig.Region == "" {
// Region needs to be set for AWS Signature Version 4.
srvConfig.Region = "us-east-1"
}
srvConfig.Logger.Console = cv3.Logger.Console
srvConfig.Logger.File = cv3.Logger.File
srvConfig.Logger.Syslog = cv3.Logger.Syslog
qc, err := quick.New(srvConfig)
if err != nil {
return fmt.Errorf("Unable to initialize the quick config. %v", err)
}
configFile, err := getConfigFile()
if err != nil {
return fmt.Errorf("Unable to get config file. %v", err)
}
err = qc.Save(configFile)
if err != nil {
return fmt.Errorf("Failed to migrate config from "+cv3.Version+" to "+srvConfig.Version+" failed. %v", err)
}
console.Println("Migration from version " + cv3.Version + " to " + srvConfig.Version + " completed successfully.")
return nil
}
// Version '4' to '5' migrates config, removes previous fields related
// to backend types and server address. This change further simplifies
// the config for future additions.
func migrateV4ToV5() error {
cv4, err := loadConfigV4()
if err != nil {
if os.IsNotExist(err) {
return nil
}
return fmt.Errorf("Unable to load config version 4. %v", err)
}
if cv4.Version != "4" {
return nil
}
// Save only the new fields, ignore the rest.
srvConfig := &configV5{}
srvConfig.Version = "5"
srvConfig.Credential = cv4.Credential
srvConfig.Region = cv4.Region
if srvConfig.Region == "" {
// Region needs to be set for AWS Signature Version 4.
srvConfig.Region = "us-east-1"
}
srvConfig.Logger.Console = cv4.Logger.Console
srvConfig.Logger.File = cv4.Logger.File
srvConfig.Logger.Syslog = cv4.Logger.Syslog
srvConfig.Logger.AMQP.Enable = false
srvConfig.Logger.ElasticSearch.Enable = false
srvConfig.Logger.Redis.Enable = false
qc, err := quick.New(srvConfig)
if err != nil {
return fmt.Errorf("Unable to initialize the quick config. %v", err)
}
configFile, err := getConfigFile()
if err != nil {
return fmt.Errorf("Unable to get config file. %v", err)
}
err = qc.Save(configFile)
if err != nil {
return fmt.Errorf("Failed to migrate config from "+cv4.Version+" to "+srvConfig.Version+" failed. %v", err)
}
console.Println("Migration from version " + cv4.Version + " to " + srvConfig.Version + " completed successfully.")
return nil
}
// Version '5' to '6' migrates config, removes previous fields related
// to backend types and server address. This change further simplifies
// the config for future additions.
func migrateV5ToV6() error {
cv5, err := loadConfigV5()
if err != nil {
if os.IsNotExist(err) {
return nil
}
return fmt.Errorf("Unable to load config version 5. %v", err)
}
if cv5.Version != "5" {
return nil
}
// Save only the new fields, ignore the rest.
srvConfig := &configV6{}
srvConfig.Version = "6"
srvConfig.Credential = cv5.Credential
srvConfig.Region = cv5.Region
if srvConfig.Region == "" {
// Region needs to be set for AWS Signature Version 4.
srvConfig.Region = "us-east-1"
}
srvConfig.Logger.Console = cv5.Logger.Console
srvConfig.Logger.File = cv5.Logger.File
srvConfig.Logger.Syslog = cv5.Logger.Syslog
srvConfig.Notify.AMQP = map[string]amqpNotify{
"1": {
Enable: cv5.Logger.AMQP.Enable,
URL: cv5.Logger.AMQP.URL,
Exchange: cv5.Logger.AMQP.Exchange,
RoutingKey: cv5.Logger.AMQP.RoutingKey,
Mandatory: cv5.Logger.AMQP.Mandatory,
Immediate: cv5.Logger.AMQP.Immediate,
Durable: cv5.Logger.AMQP.Durable,
Internal: cv5.Logger.AMQP.Internal,
NoWait: cv5.Logger.AMQP.NoWait,
AutoDeleted: cv5.Logger.AMQP.AutoDeleted,
},
}
srvConfig.Notify.ElasticSearch = map[string]elasticSearchNotify{
"1": {
Enable: cv5.Logger.ElasticSearch.Enable,
URL: cv5.Logger.ElasticSearch.URL,
Index: cv5.Logger.ElasticSearch.Index,
},
}
srvConfig.Notify.Redis = map[string]redisNotify{
"1": {
Enable: cv5.Logger.Redis.Enable,
Addr: cv5.Logger.Redis.Addr,
Password: cv5.Logger.Redis.Password,
Key: cv5.Logger.Redis.Key,
},
}
qc, err := quick.New(srvConfig)
if err != nil {
return fmt.Errorf("Unable to initialize the quick config. %v", err)
}
configFile, err := getConfigFile()
if err != nil {
return fmt.Errorf("Unable to get config file. %v", err)
}
err = qc.Save(configFile)
if err != nil {
return fmt.Errorf("Failed to migrate config from "+cv5.Version+" to "+srvConfig.Version+" failed. %v", err)
}
console.Println("Migration from version " + cv5.Version + " to " + srvConfig.Version + " completed successfully.")
return nil
}
// Version '6' to '7' migrates config, removes previous fields related
// to backend types and server address. This change further simplifies
// the config for future additions.
func migrateV6ToV7() error {
cv6, err := loadConfigV6()
if err != nil {
if os.IsNotExist(err) {
return nil
}
return fmt.Errorf("Unable to load config version 6. %v", err)
}
if cv6.Version != "6" {
return nil
}
// Save only the new fields, ignore the rest.
srvConfig := &serverConfigV7{}
srvConfig.Version = globalMinioConfigVersion
srvConfig.Credential = cv6.Credential
srvConfig.Region = cv6.Region
if srvConfig.Region == "" {
// Region needs to be set for AWS Signature Version 4.
srvConfig.Region = "us-east-1"
}
srvConfig.Logger.Console = cv6.Logger.Console
srvConfig.Logger.File = cv6.Logger.File
srvConfig.Logger.Syslog = cv6.Logger.Syslog
srvConfig.Notify.AMQP = make(map[string]amqpNotify)
srvConfig.Notify.ElasticSearch = make(map[string]elasticSearchNotify)
srvConfig.Notify.Redis = make(map[string]redisNotify)
if len(cv6.Notify.AMQP) == 0 {
srvConfig.Notify.AMQP["1"] = amqpNotify{}
} else {
srvConfig.Notify.AMQP = cv6.Notify.AMQP
}
if len(cv6.Notify.ElasticSearch) == 0 {
srvConfig.Notify.ElasticSearch["1"] = elasticSearchNotify{}
} else {
srvConfig.Notify.ElasticSearch = cv6.Notify.ElasticSearch
}
if len(cv6.Notify.Redis) == 0 {
srvConfig.Notify.Redis["1"] = redisNotify{}
} else {
srvConfig.Notify.Redis = cv6.Notify.Redis
}
qc, err := quick.New(srvConfig)
if err != nil {
return fmt.Errorf("Unable to initialize the quick config. %v", err)
}
configFile, err := getConfigFile()
if err != nil {
return fmt.Errorf("Unable to get config file. %v", err)
}
err = qc.Save(configFile)
if err != nil {
return fmt.Errorf("Failed to migrate config from "+cv6.Version+" to "+srvConfig.Version+" failed. %v", err)
}
console.Println("Migration from version " + cv6.Version + " to " + srvConfig.Version + " completed successfully.")
return nil
}