sysinfo

by zcalusic

zcalusic / sysinfo

Sysinfo is a Go library providing Linux OS / kernel / hardware system information.

213 Stars 40 Forks Last release: Not found Other 49 Commits 0 Releases

Available items

No Items, yet!

The developer of this repository has not created any items for sale yet. Need a bug fixed? Help with integration? A different license? Create a request here:

Sysinfo

Build Status Go Report Card GoDoc License Powered by Platform

Package sysinfo is a Go library providing Linux OS / kernel / hardware system information. It's completely standalone, has no dependencies on the host system, doesn't execute external programs, doesn't even import other Go libraries. It collects only "inventory type" information, things that don't change often.

Code Example

package main

import ( "encoding/json" "fmt" "log" "os/user"

"github.com/zcalusic/sysinfo"

)

func main() { current, err := user.Current() if err != nil { log.Fatal(err) }

if current.Uid != "0" {
    log.Fatal("requires superuser privilege")
}

var si sysinfo.SysInfo

si.GetSysInfo()

data, err := json.MarshalIndent(&si, "", "  ")
if err != nil {
    log.Fatal(err)
}

fmt.Println(string(data))

}

Motivation

I couldn't find any self-contained library that would provide set of data/features I needed. So another sysinfo was born.

The purpose of the library is to collect only inventory info. No metrics like CPU usage or load average will be added. The rule of thumb is, if it's changing during the day, every day, it doesn't belong in the library.

The library should work well on any Linux distribution. Here's just a small list of distributions on which the library has been successfully tested. If your favorite distro is not on the list, feel free to open an issue and report success.

  • [x] Fedora 28
  • [x] CentOS 6, 7
  • [x] Debian 7, 8, 9, 10...
  • [x] Ubuntu 12.04, 14.04, 16.04, 18.04...

While older distributions can be a bit problematic, all newer should work out of the box thanks to modern kernels with more features and standardization efforts of the systemd team (think /etc/os-release and stuff like that).

Requirements

Sysinfo requires:

  • Linux kernel 2.6.23 or later (actually, this is what Go's run-time requires)
  • access to /sys & /proc Linux virtual file systems
  • access to various files in /etc, /var, /run FS hierarchy
  • access to DMI system data via /dev/mem virtual device (requires superuser privilege)

Sysinfo doesn't require ANY other external utility on the target system, which is its primary strength, IMHO.

It heavily depends on Linux internals, so there are no plans to support other operating systems.

Installation

Just use go get.

go get github.com/zcalusic/sysinfo

There's also a very simple utility demonstrating sysinfo library capabilities. Start it (as superuser) to get pretty formatted JSON output of all the info that sysinfo library provides. Due to its simplicity, the source code of the utility also doubles down as an example of how to use the library.

go get github.com/zcalusic/sysinfo/cmd/sysinfo

Sample output

{
  "sysinfo": {
    "version": "0.9.1",
    "timestamp": "2016-09-24T13:30:28.369498856+02:00"
  },
  "node": {
    "hostname": "web12",
    "machineid": "04aa55927ebd390829367c1757b98cac",
    "timezone": "Europe/Zagreb"
  },
  "os": {
    "name": "CentOS Linux 7 (Core)",
    "vendor": "centos",
    "version": "7",
    "release": "7.2.1511",
    "architecture": "amd64"
  },
  "kernel": {
    "release": "3.10.0-327.13.1.el7.x86_64",
    "version": "#1 SMP Thu Mar 31 16:04:38 UTC 2016",
    "architecture": "x86_64"
  },
  "product": {
    "name": "RH2288H V3",
    "vendor": "Huawei",
    "version": "V100R003",
    "serial": "2103711GEL10F3430658"
  },
  "board": {
    "name": "BC11HGSA0",
    "vendor": "Huawei",
    "version": "V100R003",
    "serial": "033HXVCNG3107624"
  },
  "chassis": {
    "type": 17,
    "vendor": "Huawei"
  },
  "bios": {
    "vendor": "Insyde Corp.",
    "version": "3.16",
    "date": "03/16/2016"
  },
  "cpu": {
    "vendor": "GenuineIntel",
    "model": "Intel(R) Xeon(R) CPU E5-2630 v3 @ 2.40GHz",
    "speed": 2400,
    "cache": 20480,
    "cpus": 1,
    "cores": 8,
    "threads": 16
  },
  "memory": {
    "type": "DRAM",
    "speed": 2133,
    "size": 65536
  },
  "storage": [
    {
      "name": "sda",
      "driver": "sd",
      "vendor": "ATA",
      "model": "ST9500620NS",
      "serial": "9XF2HZ9K",
      "size": 500
    }
  ],
  "network": [
    {
      "name": "enp3s0f1",
      "driver": "ixgbe",
      "macaddress": "84:ad:5a:e3:79:71",
      "port": "fibre",
      "speed": 10000
    }
  ]
}

Contributors

Contributors are welcome, just open a new issue / pull request.

License

The MIT License (MIT)

Copyright © 2016 Zlatko Čalušić

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

We use cookies. If you continue to browse the site, you agree to the use of cookies. For more information on our use of cookies please see our Privacy Policy.