mirror of
https://github.com/minio/minio.git
synced 2024-12-27 07:35:55 -05:00
121 lines
3.7 KiB
Go
121 lines
3.7 KiB
Go
// Copyright (c) 2015-2024 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/>.
|
|
|
|
//go:build fmtgen
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"encoding/json"
|
|
"log"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"github.com/klauspost/compress/zip"
|
|
"github.com/minio/cli"
|
|
)
|
|
|
|
var fmtGenFlags = []cli.Flag{
|
|
cli.IntFlag{
|
|
Name: "parity",
|
|
Usage: "specify erasure code parity",
|
|
},
|
|
cli.StringFlag{
|
|
Name: "deployment-id",
|
|
Usage: "deployment-id of the MinIO cluster for which format.json is needed",
|
|
},
|
|
cli.StringFlag{
|
|
Name: "address",
|
|
Value: ":" + GlobalMinioDefaultPort,
|
|
Usage: "bind to a specific ADDRESS:PORT, ADDRESS can be an IP or hostname",
|
|
EnvVar: "MINIO_ADDRESS",
|
|
},
|
|
}
|
|
|
|
var fmtGenCmd = cli.Command{
|
|
Name: "fmt-gen",
|
|
Usage: "Generate format.json files for an erasure server pool",
|
|
Flags: append(fmtGenFlags, GlobalFlags...),
|
|
Action: fmtGenMain,
|
|
CustomHelpTemplate: `NAME:
|
|
{{.HelpName}} - {{.Usage}}
|
|
|
|
USAGE:
|
|
{{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}DIR1 [DIR2..]
|
|
{{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}DIR{1...64}
|
|
{{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}DIR{1...64} DIR{65...128}
|
|
|
|
DIR:
|
|
DIR points to a directory on a filesystem. When you want to combine
|
|
multiple drives into a single large system, pass one directory per
|
|
filesystem separated by space. You may also use a '...' convention
|
|
to abbreviate the directory arguments. Remote directories in a
|
|
distributed setup are encoded as HTTP(s) URIs.
|
|
{{if .VisibleFlags}}
|
|
FLAGS:
|
|
{{range .VisibleFlags}}{{.}}
|
|
{{end}}{{end}}
|
|
EXAMPLES:
|
|
1. Generate format.json.zip containing format.json files for all drives in a distributed MinIO server pool of 32 nodes with 32 drives each.
|
|
{{.Prompt}} {{.HelpName}} http://node{1...32}.example.com/mnt/export{1...32}
|
|
|
|
`,
|
|
}
|
|
|
|
func fmtGenMain(ctxt *cli.Context) {
|
|
deploymentID := ctxt.String("deployment-id")
|
|
err := buildServerCtxt(ctxt, &globalServerCtxt)
|
|
if err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
handleCommonArgs(globalServerCtxt)
|
|
pools, _, err := createServerEndpoints(globalMinioAddr, globalServerCtxt.Layout.pools, globalServerCtxt.Layout.legacy)
|
|
if err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
zipFile, err := os.Create("format.json.zip")
|
|
if err != nil {
|
|
log.Fatalf("failed to create format.json.zip: %v", err)
|
|
}
|
|
defer zipFile.Close()
|
|
fmtZipW := zip.NewWriter(zipFile)
|
|
defer fmtZipW.Close()
|
|
for _, pool := range pools { // for each pool
|
|
setCount, setDriveCount := pool.SetCount, pool.DrivesPerSet
|
|
format := newFormatErasureV3(setCount, setDriveCount)
|
|
format.ID = deploymentID
|
|
for i := 0; i < setCount; i++ { // for each erasure set
|
|
for j := 0; j < setDriveCount; j++ {
|
|
newFormat := format.Clone()
|
|
newFormat.Erasure.This = format.Erasure.Sets[i][j]
|
|
if deploymentID != "" {
|
|
newFormat.ID = deploymentID
|
|
}
|
|
drive := pool.Endpoints[i*setDriveCount+j]
|
|
fmtBytes, err := json.Marshal(newFormat)
|
|
if err != nil {
|
|
//nolint:gocritic
|
|
log.Fatalf("failed to marshal format.json for %s: %v", drive.String(), err)
|
|
}
|
|
fmtJSON := filepath.Join(drive.Host, drive.Path, minioMetaBucket, "format.json")
|
|
embedFileInZip(fmtZipW, fmtJSON, fmtBytes, 0o600)
|
|
}
|
|
}
|
|
}
|
|
}
|