/
admin-bucket-remote-add.go
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/
admin-bucket-remote-add.go
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// Copyright (c) 2015-2021 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/>.
package cmd
import (
"fmt"
"net/url"
"regexp"
"strings"
"time"
humanize "github.com/dustin/go-humanize"
"github.com/fatih/color"
"github.com/minio/cli"
json "github.com/minio/colorjson"
"github.com/minio/madmin-go"
"github.com/filswan/fs3-mc/pkg/probe"
"github.com/minio/minio/pkg/console"
)
var adminBucketRemoteAddFlags = []cli.Flag{
cli.StringFlag{
Name: "path",
Value: "auto",
Usage: "bucket path lookup supported by the server. Valid options are '[on,off,auto]'",
},
cli.StringFlag{
Name: "service",
Usage: "type of service. Valid options are '[replication]'",
},
cli.StringFlag{
Name: "region",
Usage: "region of the destination bucket (optional)",
},
cli.StringFlag{
Name: "bandwidth",
Usage: "Set bandwidth limit in bits per second (K,B,G,T for metric and Ki,Bi,Gi,Ti for IEC units)",
},
cli.BoolFlag{
Name: "sync",
Usage: "enable synchronous replication for this target. Default is async",
},
cli.UintFlag{
Name: "healthcheck-seconds",
Usage: "health check duration in seconds",
Value: 60,
},
}
var adminBucketRemoteAddCmd = cli.Command{
Name: "add",
Usage: "add a new remote target",
Action: mainAdminBucketRemoteAdd,
OnUsageError: onUsageError,
Before: setGlobalsFromContext,
Flags: append(globalFlags, adminBucketRemoteAddFlags...),
CustomHelpTemplate: `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} TARGET http(s)://ACCESSKEY:SECRETKEY@DEST_URL/DEST_BUCKET [--path | --region | --bandwidth] --service
TARGET:
Also called as alias/sourcebucketname
DEST_BUCKET:
Also called as remote target bucket.
DEST_URL:
Also called as remote endpoint.
ACCESSKEY:
Also called as username.
SECRETKEY:
Also called as password.
FLAGS:
{{range .VisibleFlags}}{{.}}
{{end}}
EXAMPLES:
1. Set a new remote replication target "targetbucket" in region "us-west-1" on https://minio.siteb.example.com for bucket 'sourcebucket'.
{{.Prompt}} {{.HelpName}} sitea/sourcebucket https://foobar:foo12345@minio.siteb.example.com/targetbucket \
--service "replication" --region "us-west-1"
2. Set a new remote replication target 'targetbucket' in region "us-west-1" on https://minio.siteb.example.com for
bucket 'sourcebucket' with bandwidth set to 2 gigabits per second. Enable synchronous replication to the target
and perform health check of target every 100 seconds
{{.Prompt}} {{.HelpName}} sitea/sourcebucket https://foobar:foo12345@minio.siteb.example.com/targetbucket \
--service "replication" --region "us-west-1 --bandwidth "2G" --sync
`,
}
// checkAdminBucketRemoteAddSyntax - validate all the passed arguments
func checkAdminBucketRemoteAddSyntax(ctx *cli.Context) {
argsNr := len(ctx.Args())
if argsNr < 2 {
cli.ShowCommandHelpAndExit(ctx, ctx.Command.Name, 1) // last argument is exit code
}
if argsNr > 2 {
fatalIf(errInvalidArgument().Trace(ctx.Args().Tail()...),
"Incorrect number of arguments for remote add command.")
}
}
// RemoteMessage container for content message structure
type RemoteMessage struct {
op string
Status string `json:"status"`
AccessKey string `json:"accessKey,omitempty"`
SecretKey string `json:"secretKey,omitempty"`
SourceBucket string `json:"sourceBucket"`
TargetURL string `json:"TargetURL,omitempty"`
TargetBucket string `json:"TargetBucket,omitempty"`
RemoteARN string `json:"RemoteARN,omitempty"`
Path string `json:"path,omitempty"`
Region string `json:"region,omitempty"`
ServiceType string `json:"service"`
Bandwidth int64 `json:"bandwidth"`
ReplicationSync bool `json:"replicationSync"`
HealthCheckDuration time.Duration `json:"healthcheckDuration"`
}
func (r RemoteMessage) String() string {
switch r.op {
case "ls":
message := console.Colorize("TargetURL", fmt.Sprintf("%s ", r.TargetURL))
message += console.Colorize("SourceBucket", r.SourceBucket)
message += console.Colorize("Arrow", "->")
message += console.Colorize("TargetBucket", r.TargetBucket)
message += " "
message += console.Colorize("ARN", r.RemoteARN)
if r.ReplicationSync && r.ServiceType == string(madmin.ReplicationService) {
message += " "
message += console.Colorize("SyncLabel", "sync")
}
return message
case "rm":
return console.Colorize("RemoteMessage", "Removed remote target for `"+r.SourceBucket+"` bucket successfully.")
case "add":
return console.Colorize("RemoteMessage", "Remote ARN = `"+r.RemoteARN+"`.")
case "edit":
return console.Colorize("RemoteMessage", "Credentials updated successfully for target with ARN:`"+r.RemoteARN+"`.")
}
return ""
}
// JSON returns jsonified message
func (r RemoteMessage) JSON() string {
r.Status = "success"
jsonMessageBytes, e := json.MarshalIndent(r, "", " ")
fatalIf(probe.NewError(e), "Unable to marshal into JSON.")
return string(jsonMessageBytes)
}
var targetKeys = regexp.MustCompile("^(https?://)(.*?):(.*?)@(.*?)/(.*?)$")
// fetchRemoteTarget - returns the dest bucket, dest endpoint, access and secret key
func fetchRemoteTarget(cli *cli.Context) (sourceBucket string, bktTarget *madmin.BucketTarget) {
args := cli.Args()
argCount := len(args)
if argCount < 2 {
fatalIf(probe.NewError(fmt.Errorf("Missing Remote target configuration")), "Unable to parse remote target")
}
_, sourceBucket = url2Alias(args[0])
TargetURL := args[1]
path := cli.String("path")
if !isValidPath(path) {
fatalIf(errInvalidArgument().Trace(path),
"Unrecognized bucket path style. Valid options are `[on,off, auto]`.")
}
parts := targetKeys.FindStringSubmatch(TargetURL)
if len(parts) != 6 {
fatalIf(probe.NewError(fmt.Errorf("invalid url format")), "Malformed Remote target URL")
}
accessKey := parts[2]
secretKey := parts[3]
parsedURL := fmt.Sprintf("%s%s", parts[1], parts[4])
TargetBucket := strings.TrimSuffix(parts[5], slashSeperator)
TargetBucket = strings.TrimPrefix(TargetBucket, slashSeperator)
u, cerr := url.Parse(parsedURL)
if cerr != nil {
fatalIf(probe.NewError(cerr), "Malformed Remote target URL")
}
serviceType := cli.String("service")
if !madmin.ServiceType(serviceType).IsValid() {
fatalIf(errInvalidArgument().Trace(serviceType), "Invalid service type. Valid option is `[replication]`.")
}
if cli.IsSet("sync") && serviceType != string(madmin.ReplicationService) {
fatalIf(errInvalidArgument(), "Invalid usage. --sync flag applies only to replication service")
}
bandwidthStr := cli.String("bandwidth")
bandwidth, err := getBandwidthInBytes(bandwidthStr)
if err != nil {
fatalIf(errInvalidArgument().Trace(bandwidthStr), "Invalid bandwidth number")
}
console.SetColor(cred, color.New(color.FgYellow, color.Italic))
creds := &madmin.Credentials{AccessKey: accessKey, SecretKey: secretKey}
bktTarget = &madmin.BucketTarget{
TargetBucket: TargetBucket,
Secure: u.Scheme == "https",
Credentials: creds,
Endpoint: u.Host,
Path: path,
API: "s3v4",
Type: madmin.ServiceType(serviceType),
Region: cli.String("region"),
BandwidthLimit: int64(bandwidth),
ReplicationSync: cli.Bool("sync"),
HealthCheckDuration: time.Duration(cli.Uint("healthcheck-seconds")) * time.Second,
}
return sourceBucket, bktTarget
}
func getBandwidthInBytes(bandwidthStr string) (bandwidth uint64, err error) {
if bandwidthStr != "" {
bandwidth, err = humanize.ParseBytes(bandwidthStr)
if err != nil {
return
}
}
bandwidth = bandwidth / 8
return
}
// mainAdminBucketRemoteAdd is the handle for "mc admin bucket remote set" command.
func mainAdminBucketRemoteAdd(ctx *cli.Context) error {
checkAdminBucketRemoteAddSyntax(ctx)
console.SetColor("RemoteMessage", color.New(color.FgGreen))
// Get the alias parameter from cli
args := ctx.Args()
aliasedURL := args.Get(0)
// Create a new MinIO Admin Client
client, cerr := newAdminClient(aliasedURL)
fatalIf(cerr, "Unable to initialize admin connection.")
sourceBucket, bktTarget := fetchRemoteTarget(ctx)
arn, e := client.SetRemoteTarget(globalContext, sourceBucket, bktTarget)
if e != nil {
fatalIf(probe.NewError(e).Trace(args...), "Unable to configure remote target")
}
printMsg(RemoteMessage{
op: ctx.Command.Name,
TargetURL: bktTarget.URL().String(),
TargetBucket: bktTarget.TargetBucket,
AccessKey: bktTarget.Credentials.AccessKey,
SourceBucket: sourceBucket,
RemoteARN: arn,
ReplicationSync: bktTarget.ReplicationSync,
})
return nil
}