gohai

README

Gohai

Gohai is a tool which collects an inventory of system information. It aims to implement some parts of features from facter and ohai. It's forked from Kentaro Kuribayashi's verity.

Usage

Gohai will build and install with go get. We require at least Go 1.7.

go get github.com/DataDog/datadog-agent/pkg/gohai

Running it will dump json formatted output:

$ gohai | jq .
{
  "cpu": {
    "cpu_cores": "2",
    "family": "6",
    "mhz": "2600",
    "model": "58",
    "model_name": "Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz",
    "stepping": "9",
    "vendor_id": "GenuineIntel"
  },
  "filesystem": [
    {
      "kb_size": "244277768",
      "mounted_on": "/",
      "name": "/dev/disk0s2"
    }
  ],
  "memory": {
    "swap_total": "4096.00M",
    "total": "8589934592"
  },
  "network": {
    "ipaddress": "192.168.1.6",
    "ipaddressv6": "fe80::5626:96ff:fed3:5811",
    "macaddress": "54:26:96:d3:58:11"
  },
  "platform": {
    "GOOARCH": "amd64",
    "GOOS": "darwin",
    "goV": "1.2.1",
    "hostname": "new-host.home",
    "kernel_name": "Darwin",
    "kernel_release": "12.5.0",
    "kernel_version": "Darwin Kernel Version 12.5.0: Sun Sep 29 13:33:47 PDT 2013; root:xnu-2050.48.12~1/RELEASE_X86_64",
    "machine": "x86_64",
    "os": "Darwin",
    "processor": "i386",
    "pythonV": "2.7.2"
  }
}

Pipe it through eg. jq or python -m json.tool for pretty output.

How to build

Just run go build!

Build with version info

To build Gohai with version information, use make.go:

go run make.go

It will build gohai using the go build command, with the version info passed through -ldflags.

Updating CPU Information

Some information about CPUs is drawn from the source of the util-linux utility lscpu. To update this information, such as when new processors are released, run

python cpu/from-lscpu-arm.py /path/to/lscpu-arm.c > cpu/lscpu_linux_arm64.go

See Also

• facter
• ohai

Author

• Kentaro Kuribayashi

License

• MIT http://kentaro.mit-license.org/

Documentation

Overview

Package main contains the binary related functions, eg. cli parameters