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#!/usr/bin/env python3
#
# Copyright (C) 2016 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# 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/>.
#
# File: vyos-show-version
# Purpose:
# Displays image version and system information.
# Used by the "run show version" command.
import os
import sys
import subprocess
import argparse
import json
import pystache
import vyos.version
import vyos.limericks
parser = argparse.ArgumentParser()
parser.add_argument("-f", "--funny", action="store_true", help="Add something funny to the output")
parser.add_argument("-j", "--json", action="store_true", help="Produce JSON output")
def read_file(name):
try:
with open (name, "r") as f:
data = f.read()
return data.strip()
except:
# This works since we only read /sys/class/* stuff
# with this function
return "Unknown"
version_output_tmpl = """
Version: VyOS {{version}}
Release Train: {{release_train}}
Built by: {{built_by}}
Built on: {{built_on}}
Build UUID: {{build_uuid}}
Build Commit ID: {{build_git}}
Architecture: {{system_arch}}
Boot via: {{boot_via}}
System type: {{system_type}}
Hardware vendor: {{hardware_vendor}}
Hardware model: {{hardware_model}}
Hardware S/N: {{hardware_serial}}
Hardware UUID: {{hardware_uuid}}
Copyright: VyOS maintainers and contributors
"""
if __name__ == '__main__':
args = parser.parse_args()
version_data = vyos.version.get_version_data()
# Get system architecture (well, kernel architecture rather)
version_data['system_arch'] = subprocess.check_output('uname -m', shell=True).decode().strip()
# Get hypervisor name, if any
system_type = "bare metal"
try:
hypervisor = subprocess.check_output('hvinfo 2>/dev/null', shell=True).decode().strip()
system_type = "{0} guest".format(hypervisor)
except subprocess.CalledProcessError:
# hvinfo returns 1 if it cannot detect any hypervisor
pass
version_data['system_type'] = system_type
# Get boot type, it can be livecd, installed image, or, possible, a system installed
# via legacy "install system" mechanism
# In installed images, the squashfs image file is named after its image version,
# while on livecd it's just "filesystem.squashfs", that's how we tell a livecd boot
# from an installed image
boot_via = "installed image"
if subprocess.call(""" grep -e '^overlay.*/filesystem.squashfs' /proc/mounts >/dev/null""", shell=True) == 0:
boot_via = "livecd"
elif subprocess.call(""" grep '^overlay /' /proc/mounts >/dev/null """, shell=True) != 0:
boot_via = "legacy non-image installation"
version_data['boot_via'] = boot_via
# Get hardware details from DMI
version_data['hardware_vendor'] = read_file('/sys/class/dmi/id/sys_vendor')
version_data['hardware_model'] = read_file('/sys/class/dmi/id/product_name')
# These two assume script is run as root, normal users can't access those files
version_data['hardware_serial'] = read_file('/sys/class/dmi/id/subsystem/id/product_serial')
version_data['hardware_uuid'] = read_file('/sys/class/dmi/id/subsystem/id/product_uuid')
if args.json:
print(json.dumps(version_data))
sys.exit(0)
else:
output = pystache.render(version_output_tmpl, version_data).strip()
print(output)
if args.funny:
print(vyos.limericks.get_random())
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