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Copy pathgateway-nas.go
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124 lines (104 loc) · 3.22 KB
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/*
* Minio Cloud Storage, (C) 2018 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 nas
import (
"context"
"github.com/minio/cli"
"github.com/minio/minio-go/pkg/policy"
minio "github.com/minio/minio/cmd"
"github.com/minio/minio/pkg/auth"
)
const (
nasBackend = "nas"
)
func init() {
const nasGatewayTemplate = `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} {{if .VisibleFlags}}[FLAGS]{{end}} PATH
{{if .VisibleFlags}}
FLAGS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}
PATH:
path to NAS mount point.
ENVIRONMENT VARIABLES:
ACCESS:
MINIO_ACCESS_KEY: Username or access key of minimum 3 characters in length.
MINIO_SECRET_KEY: Password or secret key of minimum 8 characters in length.
BROWSER:
MINIO_BROWSER: To disable web browser access, set this value to "off".
UPDATE:
MINIO_UPDATE: To turn off in-place upgrades, set this value to "off".
DOMAIN:
MINIO_DOMAIN: To enable virtual-host-style requests. Set this value to Minio host domain name.
EXAMPLES:
1. Start minio gateway server for NAS backend.
$ export MINIO_ACCESS_KEY=accesskey
$ export MINIO_SECRET_KEY=secretkey
$ {{.HelpName}} /shared/nasvol
`
minio.RegisterGatewayCommand(cli.Command{
Name: nasBackend,
Usage: "Network-attached storage (NAS).",
Action: nasGatewayMain,
CustomHelpTemplate: nasGatewayTemplate,
HideHelpCommand: true,
})
}
// Handler for 'minio gateway nas' command line.
func nasGatewayMain(ctx *cli.Context) {
// Validate gateway arguments.
host := ctx.Args().First()
if host == "help" {
cli.ShowCommandHelpAndExit(ctx, nasBackend, 1)
}
// Validate gateway arguments.
minio.StartGateway(ctx, &NAS{host})
}
// NAS implements Gateway.
type NAS struct {
host string
}
// Name implements Gateway interface.
func (g *NAS) Name() string {
return nasBackend
}
// NewGatewayLayer returns nas gatewaylayer.
func (g *NAS) NewGatewayLayer(creds auth.Credentials) (minio.ObjectLayer, error) {
var err error
newObject, err := minio.NewFSObjectLayer(g.host)
if err != nil {
return nil, err
}
return &nasObjects{newObject.(*minio.FSObjects)}, nil
}
// Production - nas gateway is production ready.
func (g *NAS) Production() bool {
return true
}
// nasObjects implements gateway for Minio and S3 compatible object storage servers.
type nasObjects struct {
*minio.FSObjects
}
// IsNotificationSupported returns whether notifications are applicable for this layer.
func (l *nasObjects) IsNotificationSupported() bool {
return false
}
// GetBucketPolicy will get policy on bucket
func (l *nasObjects) GetBucketPolicy(ctx context.Context, bucket string) (policy.BucketAccessPolicy, error) {
return minio.ReadBucketPolicy(bucket, l)
}