import textwrap from optparse import make_option from os import path from django.core.management.base import BaseCommand from orchestra.utils.paths import get_site_root, get_orchestra_root from orchestra.utils.system import run, check_root class Command(BaseCommand): def __init__(self, *args, **kwargs): super(Command, self).__init__(*args, **kwargs) self.option_list = BaseCommand.option_list + ( make_option('--username', dest='username', default='orchestra', help='Specifies the system user that would run celeryd.'), make_option('--processes', dest='processes', default=2, help='Number of celeryd processes.'), make_option('--noinput', action='store_false', dest='interactive', default=True, help='Tells Django to NOT prompt the user for input of any kind. ' 'You must use --username with --noinput, and must contain the ' 'cleleryd process owner, which is the user how will perform tincd updates'), ) option_list = BaseCommand.option_list help = 'Configure Celeryd to run with your orchestra instance.' @check_root def handle(self, *args, **options): context = { 'site_root': get_site_root(), 'username': options.get('username'), 'bin_path': path.join(get_orchestra_root(), 'bin'), 'processes': options.get('processes'), } celery_config = textwrap.dedent("""\ # Name of nodes to start, here we have a single node CELERYD_NODES="w1" # Where to chdir at start. CELERYD_CHDIR="%(site_root)s" # How to call "manage.py celeryd_multi" CELERYD_MULTI="$CELERYD_CHDIR/manage.py celeryd_multi" # Extra arguments to celeryd CELERYD_OPTS="-P:w1 processes -c:w1 %(processes)s -Q:w1 celery" # Name of the celery config module. CELERY_CONFIG_MODULE="celeryconfig" # %%n will be replaced with the nodename. CELERYD_LOG_FILE="/var/log/celery/%%n.log" CELERYD_PID_FILE="/var/run/celery/%%n.pid" CELERY_CREATE_DIRS=1 # Full path to the celeryd logfile. CELERYEV_LOG_FILE="/var/log/celery/celeryev.log" CELERYEV_PID_FILE="/var/run/celery/celeryev.pid" # Workers should run as an unprivileged user. CELERYD_USER="%(username)s" CELERYD_GROUP="$CELERYD_USER" # Persistent revokes CELERYD_STATE_DB="$CELERYD_CHDIR/persistent_revokes" # Celeryev CELERYEV="$CELERYD_CHDIR/manage.py" CELERYEV_CAM="djcelery.snapshot.Camera" CELERYEV_USER="$CELERYD_USER" CELERYEV_GROUP="$CELERYD_USER" CELERYEV_OPTS="celerycam" # Celerybeat CELERYBEAT="${CELERYD_CHDIR}/manage.py celerybeat" CELERYBEAT_USER="$CELERYD_USER" CELERYBEAT_GROUP="$CELERYD_USER" CELERYBEAT_CHDIR="$CELERYD_CHDIR" CELERYBEAT_OPTS="--schedule=/var/run/celerybeat-schedule --scheduler=djcelery.schedulers.DatabaseScheduler" """ % context ) run("echo '%s' > /etc/default/celeryd" % celery_config) # https://raw.github.com/celery/celery/master/extra/generic-init.d/ for script in ['celeryevcam', 'celeryd', 'celerybeat']: context['script'] = script run('cp %(bin_path)s/%(script)s /etc/init.d/%(script)s' % context) run('chmod +x /etc/init.d/%(script)s' % context) run('update-rc.d %(script)s defaults' % context) rotate = textwrap.dedent("""\ /var/log/celery/*.log { weekly missingok rotate 10 compress delaycompress notifempty copytruncate }""" ) run("echo '%s' > /etc/logrotate.d/celeryd" % rotate)