fabric 1.x script to install an openvpn router

fabfile.py

#!/usr/bin/env python

from fabric.api import *
from fabric.contrib.files import exists,append,comment,upload_template,sed

def openvpn_router_client(cfgpath):
    sysctlcmd='net.ipv4.ip_forward=1'
    run('sysctl -w %s'%sysctlcmd)
    run('echo "%s" > /etc/sysctl.d/90-openvpn-router-ip-forward.conf'%sysctlcmd)
    run('apt install -q -y openvpn ufw')
    put(cfgpath+'/*','/etc/openvpn/')
    append('/etc/default/openvpn','AUTOSTART=client')
    run('systemctl daemon-reload')
    run('service openvpn restart')

    sed('/etc/default/ufw','DEFAULT_FORWARD_POLICY="DROP"','DEFAULT_FORWARD_POLICY="ACCEPT"')
    run('ufw allow 22')
    run('ufw enable')