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minio/cmd/globals.go

160 lines
4.7 KiB

/*
* Minio Cloud Storage, (C) 2015, 2016, 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 (
"crypto/x509"
"net/url"
"os"
"runtime"
"strings"
"time"
humanize "github.com/dustin/go-humanize"
"github.com/fatih/color"
"github.com/minio/cli"
"github.com/minio/mc/pkg/console"
"github.com/minio/minio/pkg/objcache"
)
// Global constants for Minio.
const (
minGoVersion = ">= 1.7" // Minio requires at least Go v1.7
)
// minio configuration related constants.
const (
globalMinioConfigVersion = "13"
globalMinioConfigDir = ".minio"
globalMinioCertsDir = "certs"
globalMinioCertsCADir = "CAs"
globalMinioCertFile = "public.crt"
globalMinioKeyFile = "private.key"
globalMinioConfigFile = "config.json"
globalMinioCertExpireWarnDays = time.Hour * 24 * 30 // 30 days.
globalMinioDefaultRegion = "us-east-1"
globalMinioDefaultOwnerID = "minio"
globalMinioDefaultStorageClass = "STANDARD"
globalWindowsOSName = "windows"
// Add new global values here.
)
const (
// Limit fields size (except file) to 1Mib since Policy document
// can reach that size according to https://aws.amazon.com/articles/1434
maxFormFieldSize = int64(1 * humanize.MiByte)
// Limit memory allocation to store multipart data
maxFormMemory = int64(5 * humanize.MiByte)
// The maximum allowed difference between the request generation time and the server processing time
globalMaxSkewTime = 15 * time.Minute
)
var (
globalQuiet = false // quiet flag set via command line.
globalConfigDir = mustGetConfigPath() // config-dir flag set via command line
// Add new global flags here.
// Indicates if the running minio server is distributed setup.
globalIsDistXL = false
// Indicates if the running minio server is an erasure-code backend.
globalIsXL = false
// This flag is set to 'true' by default, it is set to `false`
// when MINIO_BROWSER env is set to 'off'.
globalIsBrowserEnabled = !strings.EqualFold(os.Getenv("MINIO_BROWSER"), "off")
// Maximum cache size. Defaults to disabled.
// Caching is enabled only for RAM size > 8GiB.
globalMaxCacheSize = uint64(0)
// Maximum size of internal objects parts
globalPutPartSize = int64(64 * 1024 * 1024)
// Cache expiry.
globalCacheExpiry = objcache.DefaultExpiry
// Minio local server address (in `host:port` format)
globalMinioAddr = ""
// Minio default port, can be changed through command line.
globalMinioPort = "9000"
// Holds the host that was passed using --address
globalMinioHost = ""
// Holds the list of API endpoints for a given server.
globalAPIEndpoints = []string{}
// Peer communication struct
globalS3Peers = s3Peers{}
// CA root certificates, a nil value means system certs pool will be used
globalRootCAs *x509.CertPool
// IsSSL indicates if the server is configured with SSL.
globalIsSSL bool
// List of admin peers.
globalAdminPeers = adminPeers{}
// Minio server user agent string.
globalServerUserAgent = "Minio/" + ReleaseTag + " (" + runtime.GOOS + "; " + runtime.GOARCH + ")"
// Set to true if credentials were passed from env, default is false.
globalIsEnvCreds = false
// url.URL endpoints of disks that belong to the object storage.
globalEndpoints = []*url.URL{}
// Global server's network statistics
globalConnStats = newConnStats()
// Global HTTP request statisitics
globalHTTPStats = newHTTPStats()
// Add new variable global values here.
)
var (
// Keeps the connection active by waiting for following amount of time.
// Primarily used in ListenBucketNotification.
globalSNSConnAlive = 5 * time.Second
)
// global colors.
var (
colorBold = color.New(color.Bold).SprintFunc()
colorBlue = color.New(color.FgBlue).SprintfFunc()
)
// Parse command arguments and set global variables accordingly
func setGlobalsFromContext(c *cli.Context) {
// Set config dir
switch {
case c.IsSet("config-dir"):
globalConfigDir = c.String("config-dir")
case c.GlobalIsSet("config-dir"):
globalConfigDir = c.GlobalString("config-dir")
}
if globalConfigDir == "" {
console.Fatalf("Unable to get config file. Config directory is empty.")
}
// Set global quiet flag.
globalQuiet = c.Bool("quiet") || c.GlobalBool("quiet")
}