/
info_linux.go
79 lines (69 loc) · 2.09 KB
/
info_linux.go
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// RAINBOND, Application Management Platform
// Copyright (C) 2014-2017 Goodrain Co., Ltd.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// +build linux
package info
import (
"bufio"
"io/ioutil"
"os"
"os/exec"
"runtime"
"strings"
"syscall"
"github.com/goodrain/rainbond/node/nodem/client"
)
//GetSystemInfo GetSystemInfo
func GetSystemInfo() (info client.NodeSystemInfo) {
info.Architecture = runtime.GOARCH
b, _ := ioutil.ReadFile("/etc/machine-id")
info.MachineID = string(b)
output, _ := exec.Command("uname", "-r").Output()
info.KernelVersion = string(output)
osInfo := readOS()
if name, ok := osInfo["NAME"]; ok {
info.OSImage = name
}
info.OperatingSystem = runtime.GOOS
info.MemorySize, _ = getMemory()
info.NumCPU = int64(runtime.NumCPU())
return info
}
func readOS() map[string]string {
f, err := os.Open("/etc/os-release")
if err != nil {
return nil
}
defer f.Close()
var info = make(map[string]string)
r := bufio.NewReader(f)
for {
line, _, err := r.ReadLine()
if err != nil {
return info
}
lines := strings.Split(string(line), "=")
if len(lines) >= 2 {
info[lines[0]] = lines[1]
}
}
}
func getMemory() (total uint64, free uint64) {
sysInfo := new(syscall.Sysinfo_t)
err := syscall.Sysinfo(sysInfo)
if err == nil {
return uint64(sysInfo.Totalram) * uint64(sysInfo.Unit), sysInfo.Freeram * uint64(syscall.Getpagesize())
}
return 0, 0
}