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minio/pkg/controller/rpc/server.go

119 lines
3.1 KiB

/*
* Minio Cloud Storage, (C) 2015 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 rpc
import (
"net/http"
"os"
"runtime"
"syscall"
"github.com/minio/minio/pkg/probe"
)
// MinioServer - container for minio server data
type MinioServer struct {
Name string `json:"name"`
IP string `json:"ip"`
ID string `json:"id"`
}
// ServerArg - server arg
type ServerArg struct {
MinioServer
}
// ServerAddReply - server add reply
type ServerAddReply struct {
Server MinioServer `json:"server"`
Status string `json:"status"`
}
// MemStatsReply memory statistics
type MemStatsReply struct {
runtime.MemStats `json:"memstats"`
}
// DiskStatsReply disk statistics
type DiskStatsReply struct {
DiskStats syscall.Statfs_t `json:"diskstats"`
}
// SysInfoReply system info
type SysInfoReply struct {
Hostname string `json:"hostname"`
SysARCH string `json:"sys.arch"`
SysOS string `json:"sys.os"`
SysCPUS int `json:"sys.ncpus"`
Routines int `json:"goroutines"`
GOVersion string `json:"goversion"`
}
// ServerListReply list of minio servers
type ServerListReply struct {
ServerList []MinioServer `json:"servers"`
}
// ServerService server json rpc service
type ServerService struct {
serverList []MinioServer
}
// Add - add new server
func (s *ServerService) Add(r *http.Request, arg *ServerArg, reply *ServerAddReply) error {
reply.Server = MinioServer{arg.Name, arg.IP, arg.ID}
reply.Status = "connected"
s.serverList = append(s.serverList, reply.Server)
return nil
}
// MemStats - memory statistics on the server
func (s *ServerService) MemStats(r *http.Request, arg *ServerArg, reply *MemStatsReply) error {
runtime.ReadMemStats(&reply.MemStats)
return nil
}
// DiskStats - disk statistics on the server
func (s *ServerService) DiskStats(r *http.Request, arg *ServerArg, reply *DiskStatsReply) error {
syscall.Statfs("/", &reply.DiskStats)
return nil
}
// SysInfo - system info for the server
func (s *ServerService) SysInfo(r *http.Request, arg *ServerArg, reply *SysInfoReply) error {
reply.SysARCH = runtime.GOARCH
reply.SysOS = runtime.GOOS
reply.SysCPUS = runtime.NumCPU()
reply.Routines = runtime.NumGoroutine()
reply.GOVersion = runtime.Version()
var err error
reply.Hostname, err = os.Hostname()
if err != nil {
return probe.WrapError(probe.NewError(err))
}
return nil
}
// List of servers in the cluster
func (s *ServerService) List(r *http.Request, arg *ServerArg, reply *ServerListReply) error {
reply.ServerList = []MinioServer{
{"server.one", "192.168.1.1", "192.168.1.1"},
{"server.two", "192.168.1.2", "192.168.1.2"},
{"server.three", "192.168.1.3", "192.168.1.3"},
}
return nil
}