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config: Migrate to the new version. Remove backend details.

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Migrate to new config format v4.
```
{
	"version": "4",
	"credential": {
		"accessKey": "WLGDGYAQYIGI833EV05A",
		"secretKey": "BYvgJM101sHngl2uzjXS/OBF/aMxAN06JrJ3qJlF"
	},
	"region": "us-east-1",
	"logger": {
		"console": {
			"enable": true,
			"level": "fatal"
		},
		"file": {
			"enable": false,
			"fileName": "",
			"level": "error"
		},
		"syslog": {
			"enable": false,
			"address": "",
			"level": "debug"
		}
	}
}
```

This patch also updates [minio cli spec](./minio.md)
This commit is contained in:
Harshavardhana
2016-04-01 19:19:44 -07:00
parent 6037fe66e9
commit 484ba91b08
10 changed files with 255 additions and 227 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
config-migrate.go
View File

@@ -23,6 +23,7 @@ import (
"github.com/minio/mc/pkg/console"
"github.com/minio/minio/pkg/probe"
"github.com/minio/minio/pkg/quick"
)
func migrateConfig() {
@@ -30,6 +31,8 @@ func migrateConfig() {
purgeV1()
// Migrate version '2' to '3'.
migrateV2ToV3()
// Migrate version '3' to '4'.
migrateV3ToV4()
}
// Version '1' is not supported anymore and deprecated, safe to delete.
@@ -54,6 +57,8 @@ func purgeV1() {
fatalIf(probe.NewError(errors.New("")), "Unexpected version found ‘"+cv1.Version+"’, cannot migrate.", nil)
}
// Version '2' to '3' config migration adds new fields and re-orders
// previous fields. Simplifies config for future additions.
func migrateV2ToV3() {
cv2, err := loadConfigV2()
if err != nil {
@@ -65,23 +70,25 @@ func migrateV2ToV3() {
if cv2.Version != "2" {
return
}
serverConfig.SetAddr(":9000")
serverConfig.SetCredential(credential{
srvConfig := &configV3{}
srvConfig.Version = "3"
srvConfig.Addr = ":9000"
srvConfig.Credential = credential{
AccessKeyID: cv2.Credentials.AccessKeyID,
SecretAccessKey: cv2.Credentials.SecretAccessKey,
})
serverConfig.SetRegion(cv2.Credentials.Region)
serverConfig.SetConsoleLogger(consoleLogger{
}
srvConfig.Region = cv2.Credentials.Region
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
}
serverConfig.SetFileLogger(flogger)
srvConfig.Logger.File = flogger
slogger := syslogLogger{}
slogger.Level = "debug"
@@ -89,10 +96,52 @@ func migrateV2ToV3() {
slogger.Enable = true
slogger.Addr = cv2.SyslogLogger.Addr
}
serverConfig.SetSyslogLogger(slogger)
srvConfig.Logger.Syslog = slogger
err = serverConfig.Save()
fatalIf(err.Trace(), "Migrating from version ‘"+cv2.Version+"’ to ‘"+serverConfig.GetVersion()+"’ failed.", nil)
qc, err := quick.New(srvConfig)
fatalIf(err.Trace(), "Unable to initialize config.", nil)
console.Println("Migration from version ‘" + cv2.Version + "’ to ‘" + serverConfig.GetVersion() + "’ completed successfully.")
configFile, err := getConfigFile()
fatalIf(err.Trace(), "Unable to get config file.", nil)
// Migrate the config.
err = qc.Save(configFile)
fatalIf(err.Trace(), "Migrating from version ‘"+cv2.Version+"’ to ‘"+srvConfig.Version+"’ failed.", nil)
console.Println("Migration from version ‘" + cv2.Version + "’ to ‘" + srvConfig.Version + "’ completed successfully.")
}
// 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() {
cv3, err := loadConfigV3()
if err != nil {
if os.IsNotExist(err.ToGoError()) {
return
}
}
fatalIf(err.Trace(), "Unable to load config version ‘3’.", nil)
if cv3.Version != "3" {
return
}
// Save only the new fields, ignore the rest.
srvConfig := &serverConfigV4{}
srvConfig.Version = globalMinioConfigVersion
srvConfig.Credential = cv3.Credential
srvConfig.Region = cv3.Region
srvConfig.Logger.Console = cv3.Logger.Console
srvConfig.Logger.File = cv3.Logger.File
srvConfig.Logger.Syslog = cv3.Logger.Syslog
qc, err := quick.New(srvConfig)
fatalIf(err.Trace(), "Unable to initialize the quick config.", nil)
configFile, err := getConfigFile()
fatalIf(err.Trace(), "Unable to get config file.", nil)
err = qc.Save(configFile)
fatalIf(err.Trace(), "Migrating from version ‘"+cv3.Version+"’ to ‘"+srvConfig.Version+"’ failed.", nil)
console.Println("Migration from version ‘" + cv3.Version + "’ to ‘" + srvConfig.Version + "’ completed successfully.")
}