planetstack/tools/openstack-healthcheck.py

   1 #! /usr/bin/python
   2
   3 """
   4     Check the status of libvirt, openstack-nova-compute, and
   5     quantum-openvswitch-agent. If these services are enabled and have failed,
   6     then restart them.
   7 """
   8
   9 import os
  10 import sys
  11 import subprocess
  12 import time
  13
  14 def get_systemd_status(service):
  15     p=subprocess.Popen(["/bin/systemctl", "is-active", service], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  16     (out, err) = p.communicate()
  17     out = out.strip()
  18     return out
  19
  20 libvirt_enabled = os.system("systemctl -q is-enabled libvirtd.service")==0
  21 nova_compute_enabled = os.system("systemctl -q is-enabled openstack-nova-compute.service")==0
  22 openvswitch_agent_enabled = os.system("systemctl -q is-enabled quantum-openvswitch-agent.service")==0
  23
  24 print "enabled:"
  25 print "  libvirtd=", libvirt_enabled
  26 print "  openstack-nova-compute=", nova_compute_enabled
  27 print "  quantum-openvswitch-agent=", openvswitch_agent_enabled
  28
  29 if (not libvirt_enabled) or (not nova_compute_enabled) or (not openvswitch_agent_enabled):
  30     print "services are not enabled. exiting"
  31     sys.exit(0)
  32
  33 libvirt_status = get_systemd_status("libvirtd.service")
  34 nova_compute_status = get_systemd_status("openstack-nova-compute.service")
  35 openvswitch_agent_status = get_systemd_status("quantum-openvswitch-agent.service")
  36
  37 print "status:"
  38 print "  libvirtd=", libvirt_status
  39 print "  openstack-nova-compute=", nova_compute_status
  40 print "  quantum-openvswitch-agent=", openvswitch_agent_status
  41
  42 if (libvirt_status=="failed") or (nova_compute_status=="failed") or (openvswitch_agent_status=="failed"):
  43     print "services have failed. doing the big restart"
  44     os.system("systemctl stop openstack-nova-compute.service")
  45     os.system("systemctl stop quantum-openvswitch-agent.service")
  46     os.system("systemctl stop libvirtd.service")
  47     time.sleep(5)
  48     os.system("systemctl start libvirtd.service")
  49     time.sleep(5)
  50     os.system("systemctl start quantum-openvswitch-agent.service")
  51     time.sleep(5)
  52     os.system("systemctl start openstack-nova-compute.service")
  53     print "done"
  54
  55
  56
  57