servicemanager/seaman.py

122 lines
4.0 KiB
Python

# -*- coding: utf-8 -*-
# *****************************************************************************
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Module authors:
# Markus Zolliker <markus.zolliker@psi.ch>
#
# *****************************************************************************
import sys
import time
import termios
import subprocess
import os
from servicemanager.base import ServiceManager, ServiceDown
from servicemanager.sicsclient import sics_client
def run_command(cmd, wait=False):
if wait:
old = termios.tcgetattr(sys.stdin)
proc = subprocess.Popen(cmd.split())
try:
proc.wait()
except KeyboardInterrupt:
proc.terminate()
finally:
# in case cmd changed tty attributes
termios.tcsetattr(sys.stdin, termios.TCSAFLUSH, old)
print('')
else:
subprocess.Popen(cmd.split(), stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
class SeaManager(ServiceManager):
group = 'sea'
services = ('sea', 'graph')
USAGE = """
Usage:
sea gui <instance>
sea <instance> # the same as sea gui <instance>
sea cli <instance> # the same as old seacmd
sea start <instance> [<service>] # the same as old 'monit start sea'
sea restart <instance> [<service>]
sea stop <instance> [<service>]
sea list [<instance>]
<service> is one of sea, graph
%s
"""
def do_cli(self, ins):
try:
self.check_running(ins, 'sea')
except ServiceDown as e:
self.do_help()
print(str(e))
except KeyError: # running on an other machine?
self.do_help()
run_command('six -sea %s' % ins, wait=True)
def do_gui(self, ins=''):
try:
self.check_running(ins, 'sea')
except ServiceDown as e:
self.do_help()
print(str(e))
return
except KeyError: # running on an other machine?
self.do_help()
run_command('SeaClient %s' % ins)
print('starting sea gui %s' % ins)
time.sleep(5)
def get_cfg(self, ins, service):
"""return cfg info about running programs, if relevant
return samenv name
"""
if service != 'sea': # ignore when service == 'graph'
return ''
try:
return sics_client(('localhost', self.info[ins]['sea']), 'samenv name')
except Exception as e:
print(self.info)
return repr(e)
def treat_args(self, argdict, unknown=(), extra=()):
if len(unknown) == 1:
insts = set()
filename = os.environ.get('InstrumentHostList')
if filename:
with open(filename) as fil:
for line in fil:
inst = None
sea = False
for item in line.split():
key, _, value = item.partition('=')
if key == 'instr':
inst = value
elif key == 'sea':
sea = True
if inst and sea:
insts.add(inst)
if unknown[0] in insts:
return super().treat_args(argdict, (), unknown)
return super().treat_args(argdict, unknown, extra)