minio/cmd/common-main.go

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/*
* Minio Cloud Storage, (C) 2017 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 (
"errors"
"os"
"path/filepath"
"strings"
"time"
"github.com/minio/cli"
"github.com/minio/minio/pkg/auth"
)
// Check for updates and print a notification message
func checkUpdate(mode string) {
// Its OK to ignore any errors during getUpdateInfo() here.
if older, downloadURL, err := getUpdateInfo(1*time.Second, mode); err == nil {
if updateMsg := computeUpdateMessage(downloadURL, older); updateMsg != "" {
log.Println(updateMsg)
}
}
}
func enableLoggers() {
fileLogTarget := serverConfig.Logger.GetFile()
if fileLogTarget.Enable {
err := InitFileLogger(&fileLogTarget)
fatalIf(err, "Unable to initialize file logger")
log.AddTarget(fileLogTarget)
}
consoleLogTarget := serverConfig.Logger.GetConsole()
if consoleLogTarget.Enable {
InitConsoleLogger(&consoleLogTarget)
}
log.SetConsoleTarget(consoleLogTarget)
}
func initConfig() {
// Config file does not exist, we create it fresh and return upon success.
if isFile(getConfigFile()) {
fatalIf(migrateConfig(), "Config migration failed.")
fatalIf(loadConfig(), "Unable to load config version: '%s'.", v19)
} else {
fatalIf(newConfig(), "Unable to initialize minio config for the first time.")
log.Println("Created minio configuration file successfully at " + getConfigDir())
}
}
func handleCommonCmdArgs(ctx *cli.Context) {
// Set configuration directory.
{
// Get configuration directory from command line argument.
configDir := ctx.String("config-dir")
if !ctx.IsSet("config-dir") && ctx.GlobalIsSet("config-dir") {
configDir = ctx.GlobalString("config-dir")
}
if configDir == "" {
fatalIf(errors.New("empty directory"), "Configuration directory cannot be empty.")
}
// Disallow relative paths, figure out absolute paths.
configDirAbs, err := filepath.Abs(configDir)
fatalIf(err, "Unable to fetch absolute path for config directory %s", configDir)
setConfigDir(configDirAbs)
}
}
func handleCommonEnvVars() {
// Start profiler if env is set.
if profiler := os.Getenv("_MINIO_PROFILER"); profiler != "" {
globalProfiler = startProfiler(profiler)
}
// Check if object cache is disabled.
globalXLObjCacheDisabled = strings.EqualFold(os.Getenv("_MINIO_CACHE"), "off")
accessKey := os.Getenv("MINIO_ACCESS_KEY")
secretKey := os.Getenv("MINIO_SECRET_KEY")
if accessKey != "" && secretKey != "" {
cred, err := auth.CreateCredentials(accessKey, secretKey)
fatalIf(err, "Invalid access/secret Key set in environment.")
// credential Envs are set globally.
globalIsEnvCreds = true
globalActiveCred = cred
}
if browser := os.Getenv("MINIO_BROWSER"); browser != "" {
browserFlag, err := ParseBrowserFlag(browser)
if err != nil {
fatalIf(errors.New("invalid value"), "Unknown value %s in MINIO_BROWSER environment variable.", browser)
}
// browser Envs are set globally, this does not represent
// if browser is turned off or on.
globalIsEnvBrowser = true
globalIsBrowserEnabled = bool(browserFlag)
}
globalHTTPTrace = os.Getenv("MINIO_HTTP_TRACE") != ""
}