def run(self):
# make sure no other haproxy process running
if self.__status == HaproxyProcess.RUNNING or self.check_haproxy_process(
) == 0:
raise ServoError("haproxy already running")
haproxy_cmd = '%s -f %s -p %s -V -C %s -D' % (
self.__haproxy_bin, self.__conf_file, self.__pid_path, RUN_ROOT)
if servo.run_as_sudo(haproxy_cmd) != 0:
raise ServoError("failed to launch haproxy process")
self.__status = HaproxyProcess.RUNNING
def __init__(self,
haproxy_bin='/usr/local/sbin/haproxy',
conf_file=None,
pid_path=None):
self.__conf_file = conf_file
self.__pid_path = pid_path
self.__haproxy_bin = haproxy_bin
if not os.path.exists(haproxy_bin):
raise ServoError("%s not found in the system" % haproxy_bin)
if not os.path.exists(conf_file):
raise ServoError("%s not found in the system" % conf_file)
if self.check_haproxy_process() == 0:
self.__status = HaproxyProcess.RUNNING
else:
self.__status = HaproxyProcess.TERMINATED
def get_pids(self):
proc = subprocess.Popen(['ps', '-C', 'haproxy'],
stdout=subprocess.PIPE)
pids = []
if not (proc and proc.stdout):
raise ServoError("Failed to obtain haproxy's process id using ps")
else:
while True:
line = proc.stdout.readline()
if not line or len(line) <= 0:
break
elif line.find('haproxy') >= 0:
tokens = line.split()
pids.append(tokens[0])
if not pids:
raise ServoError("No pid is found for haproxy process")
return pids
def __init__(self,
haproxy_bin='/usr/local/sbin/haproxy',
conf_file=None,
pid_path=None,
use_sudo=False):
self.__conf_file = conf_file
self.__pid_path = pid_path
self.__haproxy_bin = haproxy_bin
self.__use_sudo = use_sudo
if not os.path.exists(haproxy_bin):
raise ServoError("%s not found in the system" % haproxy_bin)
if not os.path.exists(conf_file):
raise ServoError("%s not found in the system" % conf_file)
if subprocess.call('ps ax | grep haproxy | grep -v grep',
shell=True) == 0:
self.__status = HaproxyProcess.RUNNING
else:
self.__status = HaproxyProcess.TERMINATED
def terminate(self):
kill_cmd = 'kill -9 %s' % self.get_pid()
if os.path.isfile(self.__pid_path):
servo.run_as_sudo(kill_cmd)
if self.check_haproxy_process() == 0:
raise ServoError("haproxy still running")
self.__status = HaproxyProcess.TERMINATED
def terminate(self):
pids = self.get_pids()
for pid in pids:
kill_cmd = 'kill -9 %s' % pid
servo.run_as_sudo(kill_cmd)
if self.check_haproxy_process() == 0:
raise ServoError("haproxy still running")
self.__status = HaproxyProcess.TERMINATED
def run(self):
# make sure no other haproxy process running
if self.__status == HaproxyProcess.RUNNING or subprocess.call(
'ps ax | grep haproxy | grep -v grep', shell=True) == 0:
raise ServoError("haproxy already running")
haproxy_cmd = '%s -f %s -p %s -V -C %s -D'
haproxy_args = [
self.__haproxy_bin, self.__conf_file, self.__pid_path, RUN_ROOT
]
# Insert sudo command if we are using sudo. The '-n' argument is
# included so if we are prompted for a password, the command will
# return an error code instead of prompting us.
if self.__use_sudo:
haproxy_args.insert(0, SUDO_BIN)
haproxy_cmd = '%s -n -- ' + haproxy_cmd
if subprocess.call(haproxy_cmd % tuple(haproxy_args), shell=True) != 0:
raise ServoError("failed to launch haproxy process")
self.__status = HaproxyProcess.RUNNING
def restart(self):
if self.check_haproxy_process() != 0:
servo.log.warning('on restart, no running haproxy process found')
haproxy_cmd = '%s -f %s -p %s -V -C %s -D -sf %s)' % (
self.__haproxy_bin, self.__conf_file, self.__pid_path, RUN_ROOT,
self.get_pid())
if servo.run_as_sudo(haproxy_cmd) != 0:
raise ServoError("failed to restart haproxy process")
self.__status = HaproxyProcess.RUNNING
def terminate(self):
kill_args = [self.__pid_path]
kill_cmd = 'kill -9 $(<%s)'
if self.__use_sudo:
kill_args.insert(0, SUDO_BIN)
kill_cmd = '%s -n -- ' + kill_cmd
if os.path.isfile(self.__pid_path):
subprocess.call(kill_cmd % tuple(kill_args), shell=True)
if subprocess.call('ps ax | grep haproxy | grep -v grep',
shell=True) == 0:
raise ServoError("haproxy still running")
self.__status = HaproxyProcess.TERMINATED
def restart(self):
if subprocess.call('ps ax | grep haproxy | grep -v grep',
shell=True) != 0:
servo.log.warning('on restart, no running haproxy process found')
haproxy_cmd = '%s -f %s -p %s -V -C %s -D -sf $(<%s)'
haproxy_args = [
self.__haproxy_bin, self.__conf_file, self.__pid_path, RUN_ROOT,
self.__pid_path
]
# Insert sudo command if we are using sudo. The '-n' argument is
# included so if we are prompted for a password, the command will
# return an error code instead of prompting us.
if self.__use_sudo:
haproxy_args.insert(0, SUDO_BIN)
haproxy_cmd = '%s -n -- ' + haproxy_cmd
if subprocess.call(haproxy_cmd % tuple(haproxy_args), shell=True) != 0:
raise ServoError("failed to restart haproxy process")
self.__status = HaproxyProcess.RUNNING