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28d526bc68
During startup until the object layer is initialized logger is disabled to provide for a cleaner UI error message. CriticalIf is disabled, use FatalIf instead. Also never call os.Exit(1) on running servers where you can return error to client in handlers.
128 lines
4.0 KiB
Go
128 lines
4.0 KiB
Go
/*
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* Minio Cloud Storage, (C) 2016, 2017, 2018 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"context"
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"path"
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"time"
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"github.com/gorilla/mux"
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"github.com/minio/minio/cmd/logger"
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xrpc "github.com/minio/minio/cmd/rpc"
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)
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const adminServiceName = "Admin"
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const adminServiceSubPath = "/admin"
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var adminServicePath = path.Join(minioReservedBucketPath, adminServiceSubPath)
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// adminRPCReceiver - Admin RPC receiver for admin RPC server.
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type adminRPCReceiver struct {
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local *localAdminClient
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}
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// SignalServiceArgs - provides the signal argument to SignalService RPC
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type SignalServiceArgs struct {
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AuthArgs
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Sig serviceSignal
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}
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// SignalService - Send a restart or stop signal to the service
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func (receiver *adminRPCReceiver) SignalService(args *SignalServiceArgs, reply *VoidReply) error {
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return receiver.local.SignalService(args.Sig)
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}
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// ListLocksQuery - wraps ListLocks API's query values to send over RPC.
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type ListLocksQuery struct {
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AuthArgs
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Bucket string
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Prefix string
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Duration time.Duration
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}
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// ListLocks - lists locks held by requests handled by this server instance.
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func (receiver *adminRPCReceiver) ListLocks(args *ListLocksQuery, reply *[]VolumeLockInfo) (err error) {
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*reply, err = receiver.local.ListLocks(args.Bucket, args.Prefix, args.Duration)
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return err
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}
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// ServerInfo - returns the server info when object layer was initialized on this server.
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func (receiver *adminRPCReceiver) ServerInfo(args *AuthArgs, reply *ServerInfoData) (err error) {
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*reply, err = receiver.local.ServerInfo()
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return err
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}
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// GetConfig - returns the config.json of this server.
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func (receiver *adminRPCReceiver) GetConfig(args *AuthArgs, reply *[]byte) (err error) {
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*reply, err = receiver.local.GetConfig()
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return err
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}
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// ReInitFormatArgs - provides dry-run information to re-initialize format.json
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type ReInitFormatArgs struct {
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AuthArgs
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DryRun bool
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}
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// ReInitFormat - re-init 'format.json'
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func (receiver *adminRPCReceiver) ReInitFormat(args *ReInitFormatArgs, reply *VoidReply) error {
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return receiver.local.ReInitFormat(args.DryRun)
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}
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// WriteConfigArgs - wraps the bytes to be written and temporary file name.
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type WriteConfigArgs struct {
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AuthArgs
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TmpFileName string
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Buf []byte
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}
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// WriteTmpConfig - writes the supplied config contents onto the
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// supplied temporary file.
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func (receiver *adminRPCReceiver) WriteTmpConfig(args *WriteConfigArgs, reply *VoidReply) error {
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return receiver.local.WriteTmpConfig(args.TmpFileName, args.Buf)
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}
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// CommitConfigArgs - wraps the config file name that needs to be
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// committed into config.json on this node.
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type CommitConfigArgs struct {
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AuthArgs
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FileName string
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}
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// CommitConfig - Renames the temporary file into config.json on this node.
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func (receiver *adminRPCReceiver) CommitConfig(args *CommitConfigArgs, reply *VoidReply) error {
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return receiver.local.CommitConfig(args.FileName)
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}
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// NewAdminRPCServer - returns new admin RPC server.
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func NewAdminRPCServer() (*xrpc.Server, error) {
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rpcServer := xrpc.NewServer()
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if err := rpcServer.RegisterName(adminServiceName, &adminRPCReceiver{&localAdminClient{}}); err != nil {
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return nil, err
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}
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return rpcServer, nil
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}
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// registerAdminRPCRouter - creates and registers Admin RPC server and its router.
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func registerAdminRPCRouter(router *mux.Router) {
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rpcServer, err := NewAdminRPCServer()
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logger.FatalIf(err, "Unable to initialize Lock RPC Server", context.Background())
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subrouter := router.PathPrefix(minioReservedBucketPath).Subrouter()
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subrouter.Path(adminServiceSubPath).Handler(rpcServer)
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}
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