Tuesday, December 16, 2014

Simple LXC status indicator

Here is a simple indicator to monitor the status of the LXC running on the machine, works perfectly on Ubuntu 14.04: 
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#!/usr/bin/env python

"""LXC monitor indicator."""

import appindicator
import commands
import gtk

if __name__ == "__main__":

    def on_timer(args=None):
      lxc_number = str(len(commands.getstatusoutput("lxc-ls --running")[1].split("\n")))
      ind.set_label(lxc_number)
      item.set_label(commands.getstatusoutput("lxc-ls -f")[1])
      return True

    ind = appindicator.Indicator(
        "lxc-monitor", 
        "monitor",
        appindicator.CATEGORY_APPLICATION_STATUS)
    ind.set_status (appindicator.STATUS_ACTIVE)
    ind.set_label("...");    
    menu = gtk.Menu()
    item = gtk.MenuItem("...")    
    item.show()
    menu.append(item)
    ind.set_menu(menu)
    gtk.timeout_add(1000, on_timer)    
    gtk.main()
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