up
This commit is contained in:
parent
a17bd53183
commit
07de84e764
1 changed files with 407 additions and 407 deletions
|
|
@ -1,407 +1,407 @@
|
|||
# coding: utf-8
|
||||
|
||||
import subprocess
|
||||
import logging
|
||||
import threading
|
||||
import select
|
||||
import pty
|
||||
import os
|
||||
import signal
|
||||
|
||||
|
||||
class ContainerAlreadyExists(Exception):
|
||||
pass
|
||||
|
||||
|
||||
class ContainerAlreadyRunning(Exception):
|
||||
pass
|
||||
|
||||
|
||||
class ContainerNotExists(Exception):
|
||||
pass
|
||||
|
||||
|
||||
_logger = logging.getLogger("pylxc")
|
||||
_monitor = None
|
||||
|
||||
|
||||
class _LXCMonitor(threading.Thread):
|
||||
def __init__(self):
|
||||
threading.Thread.__init__(self)
|
||||
self._process = None
|
||||
self._monitors = {}
|
||||
|
||||
def run(self):
|
||||
master, slave = pty.openpty()
|
||||
cmd = ['/usr/bin/lxc-monitor', '-n', '.*']
|
||||
self._process = subprocess.Popen(cmd, stdout=slave, bufsize=1)
|
||||
stdout = os.fdopen(master)
|
||||
while self._process.poll() is None:
|
||||
ready, _, _ = select.select([stdout], [], [], 0.1)
|
||||
if ready:
|
||||
logging.debug("Waiting for state change")
|
||||
state = stdout.readline()
|
||||
inf = state.strip().split()
|
||||
container = inf[0].strip("'")
|
||||
state = inf[-1].strip('[]')
|
||||
if container in self._monitors:
|
||||
logging.debug("State of container '%s' changed to '%s'", container, state)
|
||||
self._monitors[container](state)
|
||||
_logger.info("LXC Monitor stopped!")
|
||||
|
||||
def add_monitor(self, name, callback):
|
||||
self._monitors[name] = callback
|
||||
|
||||
def rm_monitor(self, name):
|
||||
self._monitors.pop(name)
|
||||
|
||||
def is_monitored(self, name):
|
||||
return name in self._monitors
|
||||
|
||||
def kill(self):
|
||||
try:
|
||||
self._process.terminate()
|
||||
self._process.wait()
|
||||
except:
|
||||
pass
|
||||
self.join()
|
||||
|
||||
|
||||
class lxc():
|
||||
def __init__(self):
|
||||
logging.debug("")
|
||||
|
||||
def list(self, status=None):
|
||||
"""
|
||||
:return: ['container_first', 'container_second']
|
||||
"""
|
||||
if status in ['active', 'frozen', 'running', 'stopped', 'nesting']:
|
||||
path = "--%s" % status
|
||||
else:
|
||||
path = ""
|
||||
|
||||
cmd = ['/usr/bin/lxc-ls', path]
|
||||
out = subprocess.check_output(cmd).splitlines()
|
||||
# print out
|
||||
return out
|
||||
|
||||
def exists(self, name):
|
||||
"""
|
||||
checks if a given container is defined or not
|
||||
"""
|
||||
if name in self.list():
|
||||
return True
|
||||
return False
|
||||
|
||||
def start(self, name, config_file=None):
|
||||
"""
|
||||
starts a container in daemon mode
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
|
||||
if name in self.list("running"):
|
||||
raise ContainerAlreadyRunning('The container %s is already started!' % name)
|
||||
|
||||
cmd = ['lxc-start', '-n', name, '-d']
|
||||
if config_file:
|
||||
cmd += ['-f', config_file]
|
||||
|
||||
return subprocess.check_call(cmd)
|
||||
|
||||
def stop(self, name):
|
||||
"""
|
||||
stops a container
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
|
||||
cmd = ['/usr/bin/lxc-stop', '-n', name]
|
||||
|
||||
try:
|
||||
result = subprocess.check_call(cmd)
|
||||
return True
|
||||
except Exception as e:
|
||||
return False
|
||||
|
||||
def destroy(self, name):
|
||||
"""
|
||||
removes a container [stops a container if it's running and]
|
||||
raises ContainerNotExists exception if the specified name is not created
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
|
||||
# todo: check status. If status not STOPPED - run method self.stop(name)
|
||||
# todo: add condition
|
||||
self.stop(name)
|
||||
|
||||
cmd = ['/usr/bin/lxc-destroy', '-f', '-n', name]
|
||||
|
||||
return subprocess.check_call(cmd)
|
||||
|
||||
def info(self, name):
|
||||
"""
|
||||
returns info dict about the specified container
|
||||
"""
|
||||
#
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
#
|
||||
cmd = ['/usr/bin/lxc-info', '-n', name, "-H"]
|
||||
out = subprocess.check_output(cmd).splitlines()
|
||||
clean = []
|
||||
info = {}
|
||||
#
|
||||
for line in out:
|
||||
if line not in clean:
|
||||
clean.append(line)
|
||||
#
|
||||
for line in clean:
|
||||
key, value = line.split(":")
|
||||
|
||||
# strip
|
||||
key = key.lstrip()
|
||||
value = value.lstrip()
|
||||
#
|
||||
key = key.replace(" ", "_")
|
||||
|
||||
info[key.lower()] = value
|
||||
|
||||
# get container size
|
||||
info['size'] = self.__get_container_size(name)
|
||||
return info
|
||||
|
||||
def __get_container_size(self, name):
|
||||
cmd = ['/usr/bin/du', '--total', '-s', '/var/lib/lxc/%s' % name]
|
||||
out = subprocess.check_output(cmd).splitlines()
|
||||
size = 0
|
||||
for l in out:
|
||||
key, value = l.split('\t')
|
||||
if value == 'total':
|
||||
size = key
|
||||
return int(key)
|
||||
|
||||
def freeze(self, name):
|
||||
"""
|
||||
freezes the container
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
cmd = ['/usr/bin/lxc-freeze', '-n', name]
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
def unfreeze(self, name):
|
||||
"""
|
||||
unfreezes the container
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
cmd = ['lxc-unfreeze', '-n', name]
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
def notify(self, name, states, callback):
|
||||
"""
|
||||
executes the callback function with no parameters when the container reaches the specified state or states
|
||||
states can be or-ed or and-ed
|
||||
notify('test', 'STOPPED', letmeknow)
|
||||
|
||||
notify('test', 'STOPPED|RUNNING', letmeknow)
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
|
||||
cmd = ['lxc-wait', '-n', name, '-s', states]
|
||||
def th():
|
||||
subprocess.check_call(cmd)
|
||||
callback()
|
||||
_logger.info("Waiting on states %s for container %s", states, name)
|
||||
threading.Thread(target=th).start()
|
||||
|
||||
def checkconfig(self):
|
||||
"""
|
||||
returns the output of lxc-checkconfig
|
||||
"""
|
||||
cmd = ['lxc-checkconfig']
|
||||
return subprocess.check_output(cmd).replace('[1;32m', '').replace('[1;33m', '').replace('[0;39m', '').replace('[1;32m', '').replace(' ', '').split('\n')
|
||||
|
||||
def create(self, name, config_file=None, template=None, backing_store=None, template_options=None):
|
||||
"""
|
||||
Create a new container
|
||||
raises ContainerAlreadyExists exception if the container name is reserved already.
|
||||
|
||||
:param template_options: Options passed to the specified template
|
||||
:type template_options: list or None
|
||||
"""
|
||||
if self.exists(name):
|
||||
raise ContainerAlreadyExists("The Container %s is already created!" % name)
|
||||
|
||||
command = list()
|
||||
command.append("lxc-create -n %s" % name)
|
||||
|
||||
if config_file:
|
||||
command.append(' -f %s' % config_file)
|
||||
if template:
|
||||
command.append(' -t %s' % template)
|
||||
if backing_store:
|
||||
command.append(' -B %s' % backing_store)
|
||||
if template_options:
|
||||
command.append(' -- %s' % template_options)
|
||||
|
||||
print " ".join(command)
|
||||
print
|
||||
# create = subprocess.check_call(command, shell=True)
|
||||
create = subprocess.check_call(" ".join(command), shell=True)
|
||||
print
|
||||
print create
|
||||
print
|
||||
|
||||
# if create == 0:
|
||||
# if not self.exists(name):
|
||||
# _logger.critical("The Container %s doesn't seem to be created! (options: %s)", name, command[3:])
|
||||
# raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
#
|
||||
# _logger.info("Container %s has been created with options %s", name, command[3:])
|
||||
# return False
|
||||
return True
|
||||
|
||||
def reset_password(self, container_name, username, password):
|
||||
call = [
|
||||
'echo',
|
||||
'"%s:${PASSWORD:-%s}"' % (username, password),
|
||||
"|",
|
||||
"chroot",
|
||||
"/var/lib/lxc/%s/rootfs/ chpasswd" % container_name
|
||||
]
|
||||
subprocess.check_call(call, shell=True)
|
||||
# subprocess.call("echo \"ubuntu:${PASSWORD:-%(password)s}\" | chroot /var/lib/lxc/%(hostname)s/rootfs/ chpasswd" % task['parameters'], shell=True)
|
||||
return True
|
||||
|
||||
# def running():
|
||||
# '''
|
||||
# returns a list of the currently running containers
|
||||
# '''
|
||||
# return all_as_dict()['Running']
|
||||
|
||||
|
||||
# def stopped():
|
||||
# '''
|
||||
# returns a list of the stopped containers
|
||||
# '''
|
||||
# return all_as_dict()['Stopped']
|
||||
|
||||
|
||||
# def all_as_dict():
|
||||
# '''
|
||||
# returns a dict {'Running': ['cont1', 'cont2'],
|
||||
# 'Stopped': ['cont3', 'cont4']
|
||||
# }
|
||||
#
|
||||
# '''
|
||||
# cmd = ['lxc-ls']
|
||||
# out = subprocess.check_output(cmd).splitlines()
|
||||
# print out
|
||||
# stopped = []
|
||||
# running = []
|
||||
# frozen = []
|
||||
# current = None
|
||||
# for c in out:
|
||||
# c = c.strip()
|
||||
# if c == 'RUNNING':
|
||||
# current = running
|
||||
# continue
|
||||
# if c == 'STOPPED':
|
||||
# current = stopped
|
||||
# continue
|
||||
# if c == 'FROZEN':
|
||||
# current = frozen
|
||||
# continue
|
||||
# if not len(c):
|
||||
# continue
|
||||
# current.append(c)
|
||||
# return {'Running': running,
|
||||
# 'Stopped': stopped,
|
||||
# 'Frozen': frozen}
|
||||
|
||||
|
||||
# def all_as_list():
|
||||
# '''
|
||||
# returns a list of all defined containers
|
||||
# '''
|
||||
# as_dict = all_as_dict()
|
||||
# containers = as_dict['Running'] + as_dict['Frozen'] + as_dict['Stopped']
|
||||
# containers_list = []
|
||||
# for i in containers:
|
||||
# i = i.replace(' (auto)', '')
|
||||
# containers_list.append(i)
|
||||
# return containers_list
|
||||
|
||||
|
||||
# def kill(name, signal):
|
||||
# '''
|
||||
# sends a kill signal to process 1 of ths container <name>
|
||||
# :param signal: numeric signal
|
||||
# '''
|
||||
# if not exists(name):
|
||||
# raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
# cmd = ['lxc-kill', '--name=%s' % name, signal]
|
||||
# subprocess.check_call(cmd)
|
||||
|
||||
|
||||
# def shutdown(name, wait=False, reboot=False):
|
||||
# '''
|
||||
# graceful shutdown sent to the container
|
||||
# :param wait: should we wait for the shutdown to complete?
|
||||
# :param reboot: reboot a container, ignores wait
|
||||
# '''
|
||||
# if not exists(name):
|
||||
# raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
# cmd = ['lxc-shutdown', '-n', name]
|
||||
# if wait:
|
||||
# cmd += ['-w']
|
||||
# if reboot:
|
||||
# cmd += ['-r']
|
||||
#
|
||||
# subprocess.check_call(cmd)
|
||||
|
||||
|
||||
# def monitor(name, callback):
|
||||
# '''
|
||||
# monitors actions on the specified container,
|
||||
# callback is a function to be called on
|
||||
# '''
|
||||
# global _monitor
|
||||
# if not exists(name):
|
||||
# raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
# if _monitor:
|
||||
# if _monitor.is_monitored(name):
|
||||
# raise Exception("You are already monitoring this container (%s)" % name)
|
||||
# else:
|
||||
# _monitor = _LXCMonitor()
|
||||
# logging.info("Starting LXC Monitor")
|
||||
# _monitor.start()
|
||||
# def kill_handler(sg, fr):
|
||||
# stop_monitor()
|
||||
# signal.signal(signal.SIGTERM, kill_handler)
|
||||
# signal.signal(signal.SIGINT, kill_handler)
|
||||
# _monitor.add_monitor(name, callback)
|
||||
|
||||
|
||||
# def unmonitor(name):
|
||||
# if not exists(name):
|
||||
# raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
# if not _monitor:
|
||||
# raise Exception("LXC Monitor is not started!")
|
||||
# if not _monitor.is_monitored(name):
|
||||
# raise Exception("This container (%s) is not monitored!" % name)
|
||||
# _monitor.rm_monitor(name)
|
||||
|
||||
|
||||
# def stop_monitor():
|
||||
# global _monitor
|
||||
# if _monitor:
|
||||
# logging.info("Killing LXC Monitor")
|
||||
# _monitor.kill()
|
||||
# _monitor = None
|
||||
# signal.signal(signal.SIGTERM, signal.SIG_DFL)
|
||||
# signal.signal(signal.SIGINT, signal.SIG_DFL)
|
||||
# coding: utf-8
|
||||
|
||||
import subprocess
|
||||
import logging
|
||||
import threading
|
||||
import select
|
||||
import pty
|
||||
import os
|
||||
import signal
|
||||
|
||||
|
||||
class ContainerAlreadyExists(Exception):
|
||||
pass
|
||||
|
||||
|
||||
class ContainerAlreadyRunning(Exception):
|
||||
pass
|
||||
|
||||
|
||||
class ContainerNotExists(Exception):
|
||||
pass
|
||||
|
||||
|
||||
_logger = logging.getLogger("pylxc")
|
||||
_monitor = None
|
||||
|
||||
|
||||
class _LXCMonitor(threading.Thread):
|
||||
def __init__(self):
|
||||
threading.Thread.__init__(self)
|
||||
self._process = None
|
||||
self._monitors = {}
|
||||
|
||||
def run(self):
|
||||
master, slave = pty.openpty()
|
||||
cmd = ['/usr/bin/lxc-monitor', '-n', '.*']
|
||||
self._process = subprocess.Popen(cmd, stdout=slave, bufsize=1)
|
||||
stdout = os.fdopen(master)
|
||||
while self._process.poll() is None:
|
||||
ready, _, _ = select.select([stdout], [], [], 0.1)
|
||||
if ready:
|
||||
logging.debug("Waiting for state change")
|
||||
state = stdout.readline()
|
||||
inf = state.strip().split()
|
||||
container = inf[0].strip("'")
|
||||
state = inf[-1].strip('[]')
|
||||
if container in self._monitors:
|
||||
logging.debug("State of container '%s' changed to '%s'", container, state)
|
||||
self._monitors[container](state)
|
||||
_logger.info("LXC Monitor stopped!")
|
||||
|
||||
def add_monitor(self, name, callback):
|
||||
self._monitors[name] = callback
|
||||
|
||||
def rm_monitor(self, name):
|
||||
self._monitors.pop(name)
|
||||
|
||||
def is_monitored(self, name):
|
||||
return name in self._monitors
|
||||
|
||||
def kill(self):
|
||||
try:
|
||||
self._process.terminate()
|
||||
self._process.wait()
|
||||
except:
|
||||
pass
|
||||
self.join()
|
||||
|
||||
|
||||
class lxc():
|
||||
def __init__(self):
|
||||
logging.debug("")
|
||||
|
||||
def list(self, status=None):
|
||||
"""
|
||||
:return: ['container_first', 'container_second']
|
||||
"""
|
||||
if status in ['active', 'frozen', 'running', 'stopped', 'nesting']:
|
||||
path = "--%s" % status
|
||||
else:
|
||||
path = ""
|
||||
|
||||
cmd = ['/usr/bin/lxc-ls', path]
|
||||
out = subprocess.check_output(cmd).splitlines()
|
||||
# print out
|
||||
return out
|
||||
|
||||
def exists(self, name):
|
||||
"""
|
||||
checks if a given container is defined or not
|
||||
"""
|
||||
if name in self.list():
|
||||
return True
|
||||
return False
|
||||
|
||||
def start(self, name, config_file=None):
|
||||
"""
|
||||
starts a container in daemon mode
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
|
||||
if name in self.list("running"):
|
||||
raise ContainerAlreadyRunning('The container %s is already started!' % name)
|
||||
|
||||
cmd = ['lxc-start', '-n', name, '-d']
|
||||
if config_file:
|
||||
cmd += ['-f', config_file]
|
||||
|
||||
return subprocess.check_call(cmd)
|
||||
|
||||
def stop(self, name):
|
||||
"""
|
||||
stops a container
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
|
||||
cmd = ['/usr/bin/lxc-stop', '-n', name]
|
||||
|
||||
try:
|
||||
result = subprocess.check_call(cmd)
|
||||
return True
|
||||
except Exception as e:
|
||||
return False
|
||||
|
||||
def destroy(self, name):
|
||||
"""
|
||||
removes a container [stops a container if it's running and]
|
||||
raises ContainerNotExists exception if the specified name is not created
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
|
||||
# todo: check status. If status not STOPPED - run method self.stop(name)
|
||||
# todo: add condition
|
||||
self.stop(name)
|
||||
|
||||
cmd = ['/usr/bin/lxc-destroy', '-f', '-n', name]
|
||||
|
||||
return subprocess.check_call(cmd)
|
||||
|
||||
def info(self, name):
|
||||
"""
|
||||
returns info dict about the specified container
|
||||
"""
|
||||
#
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
#
|
||||
cmd = ['/usr/bin/lxc-info', '-n', name, "-H"]
|
||||
out = subprocess.check_output(cmd).splitlines()
|
||||
clean = []
|
||||
info = {}
|
||||
#
|
||||
for line in out:
|
||||
if line not in clean:
|
||||
clean.append(line)
|
||||
#
|
||||
for line in clean:
|
||||
key, value = line.split(":")
|
||||
|
||||
# strip
|
||||
key = key.lstrip()
|
||||
value = value.lstrip()
|
||||
#
|
||||
key = key.replace(" ", "_")
|
||||
|
||||
info[key.lower()] = value
|
||||
|
||||
# get container size
|
||||
info['size'] = self.__get_container_size(name)
|
||||
return info
|
||||
|
||||
def __get_container_size(self, name):
|
||||
cmd = ['/usr/bin/du', '--total', '-s', '/var/lib/lxc/%s' % name]
|
||||
out = subprocess.check_output(cmd).splitlines()
|
||||
size = 0
|
||||
for l in out:
|
||||
key, value = l.split('\t')
|
||||
if value == 'total':
|
||||
size = key
|
||||
return int(key)
|
||||
|
||||
def freeze(self, name):
|
||||
"""
|
||||
freezes the container
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
cmd = ['/usr/bin/lxc-freeze', '-n', name]
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
def unfreeze(self, name):
|
||||
"""
|
||||
unfreezes the container
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
cmd = ['lxc-unfreeze', '-n', name]
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
def notify(self, name, states, callback):
|
||||
"""
|
||||
executes the callback function with no parameters when the container reaches the specified state or states
|
||||
states can be or-ed or and-ed
|
||||
notify('test', 'STOPPED', letmeknow)
|
||||
|
||||
notify('test', 'STOPPED|RUNNING', letmeknow)
|
||||
"""
|
||||
if not self.exists(name):
|
||||
raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
|
||||
cmd = ['lxc-wait', '-n', name, '-s', states]
|
||||
def th():
|
||||
subprocess.check_call(cmd)
|
||||
callback()
|
||||
_logger.info("Waiting on states %s for container %s", states, name)
|
||||
threading.Thread(target=th).start()
|
||||
|
||||
def checkconfig(self):
|
||||
"""
|
||||
returns the output of lxc-checkconfig
|
||||
"""
|
||||
cmd = ['lxc-checkconfig']
|
||||
return subprocess.check_output(cmd).replace('[1;32m', '').replace('[1;33m', '').replace('[0;39m', '').replace('[1;32m', '').replace(' ', '').split('\n')
|
||||
|
||||
def create(self, name, config_file=None, template=None, backing_store=None, template_options=None):
|
||||
"""
|
||||
Create a new container
|
||||
raises ContainerAlreadyExists exception if the container name is reserved already.
|
||||
|
||||
:param template_options: Options passed to the specified template
|
||||
:type template_options: list or None
|
||||
"""
|
||||
if self.exists(name):
|
||||
raise ContainerAlreadyExists("The Container %s is already created!" % name)
|
||||
|
||||
command = list()
|
||||
command.append("lxc-create -n %s" % name)
|
||||
|
||||
if config_file:
|
||||
command.append(' -f %s' % config_file)
|
||||
if template:
|
||||
command.append(' -t %s' % template)
|
||||
if backing_store:
|
||||
command.append(' -B %s' % backing_store)
|
||||
if template_options:
|
||||
command.append(' -- %s' % template_options)
|
||||
|
||||
print " ".join(command)
|
||||
print
|
||||
# create = subprocess.check_call(command, shell=True)
|
||||
create = subprocess.check_call(" ".join(command), shell=True)
|
||||
print
|
||||
print create
|
||||
print
|
||||
|
||||
# if create == 0:
|
||||
# if not self.exists(name):
|
||||
# _logger.critical("The Container %s doesn't seem to be created! (options: %s)", name, command[3:])
|
||||
# raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
#
|
||||
# _logger.info("Container %s has been created with options %s", name, command[3:])
|
||||
# return False
|
||||
return True
|
||||
|
||||
def reset_password(self, container_name, username, password):
|
||||
call = [
|
||||
'echo',
|
||||
'"%s:${PASSWORD:-%s}"' % (username, password),
|
||||
"|",
|
||||
"chroot",
|
||||
"/var/lib/lxc/%s/rootfs/ chpasswd" % container_name
|
||||
]
|
||||
subprocess.check_call(call, shell=True)
|
||||
# subprocess.call("echo \"ubuntu:${PASSWORD:-%(password)s}\" | chroot /var/lib/lxc/%(hostname)s/rootfs/ chpasswd" % task['parameters'], shell=True)
|
||||
return True
|
||||
|
||||
# def running():
|
||||
# '''
|
||||
# returns a list of the currently running containers
|
||||
# '''
|
||||
# return all_as_dict()['Running']
|
||||
|
||||
|
||||
# def stopped():
|
||||
# '''
|
||||
# returns a list of the stopped containers
|
||||
# '''
|
||||
# return all_as_dict()['Stopped']
|
||||
|
||||
|
||||
# def all_as_dict():
|
||||
# '''
|
||||
# returns a dict {'Running': ['cont1', 'cont2'],
|
||||
# 'Stopped': ['cont3', 'cont4']
|
||||
# }
|
||||
#
|
||||
# '''
|
||||
# cmd = ['lxc-ls']
|
||||
# out = subprocess.check_output(cmd).splitlines()
|
||||
# print out
|
||||
# stopped = []
|
||||
# running = []
|
||||
# frozen = []
|
||||
# current = None
|
||||
# for c in out:
|
||||
# c = c.strip()
|
||||
# if c == 'RUNNING':
|
||||
# current = running
|
||||
# continue
|
||||
# if c == 'STOPPED':
|
||||
# current = stopped
|
||||
# continue
|
||||
# if c == 'FROZEN':
|
||||
# current = frozen
|
||||
# continue
|
||||
# if not len(c):
|
||||
# continue
|
||||
# current.append(c)
|
||||
# return {'Running': running,
|
||||
# 'Stopped': stopped,
|
||||
# 'Frozen': frozen}
|
||||
|
||||
|
||||
# def all_as_list():
|
||||
# '''
|
||||
# returns a list of all defined containers
|
||||
# '''
|
||||
# as_dict = all_as_dict()
|
||||
# containers = as_dict['Running'] + as_dict['Frozen'] + as_dict['Stopped']
|
||||
# containers_list = []
|
||||
# for i in containers:
|
||||
# i = i.replace(' (auto)', '')
|
||||
# containers_list.append(i)
|
||||
# return containers_list
|
||||
|
||||
|
||||
# def kill(name, signal):
|
||||
# '''
|
||||
# sends a kill signal to process 1 of ths container <name>
|
||||
# :param signal: numeric signal
|
||||
# '''
|
||||
# if not exists(name):
|
||||
# raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
# cmd = ['lxc-kill', '--name=%s' % name, signal]
|
||||
# subprocess.check_call(cmd)
|
||||
|
||||
|
||||
# def shutdown(name, wait=False, reboot=False):
|
||||
# '''
|
||||
# graceful shutdown sent to the container
|
||||
# :param wait: should we wait for the shutdown to complete?
|
||||
# :param reboot: reboot a container, ignores wait
|
||||
# '''
|
||||
# if not exists(name):
|
||||
# raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
# cmd = ['lxc-shutdown', '-n', name]
|
||||
# if wait:
|
||||
# cmd += ['-w']
|
||||
# if reboot:
|
||||
# cmd += ['-r']
|
||||
#
|
||||
# subprocess.check_call(cmd)
|
||||
|
||||
|
||||
# def monitor(name, callback):
|
||||
# '''
|
||||
# monitors actions on the specified container,
|
||||
# callback is a function to be called on
|
||||
# '''
|
||||
# global _monitor
|
||||
# if not exists(name):
|
||||
# raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
# if _monitor:
|
||||
# if _monitor.is_monitored(name):
|
||||
# raise Exception("You are already monitoring this container (%s)" % name)
|
||||
# else:
|
||||
# _monitor = _LXCMonitor()
|
||||
# logging.info("Starting LXC Monitor")
|
||||
# _monitor.start()
|
||||
# def kill_handler(sg, fr):
|
||||
# stop_monitor()
|
||||
# signal.signal(signal.SIGTERM, kill_handler)
|
||||
# signal.signal(signal.SIGINT, kill_handler)
|
||||
# _monitor.add_monitor(name, callback)
|
||||
|
||||
|
||||
# def unmonitor(name):
|
||||
# if not exists(name):
|
||||
# raise ContainerNotExists("The container (%s) does not exist!" % name)
|
||||
# if not _monitor:
|
||||
# raise Exception("LXC Monitor is not started!")
|
||||
# if not _monitor.is_monitored(name):
|
||||
# raise Exception("This container (%s) is not monitored!" % name)
|
||||
# _monitor.rm_monitor(name)
|
||||
|
||||
|
||||
# def stop_monitor():
|
||||
# global _monitor
|
||||
# if _monitor:
|
||||
# logging.info("Killing LXC Monitor")
|
||||
# _monitor.kill()
|
||||
# _monitor = None
|
||||
# signal.signal(signal.SIGTERM, signal.SIG_DFL)
|
||||
# signal.signal(signal.SIGINT, signal.SIG_DFL)
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue