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initial support for parallel running

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Signed-off-by: Nico Schottelius <nico@kr.ethz.ch>
This commit is contained in:
Nico Schottelius 2011-09-12 01:14:35 +02:00
parent 4aff176106
commit e07328f569
1 changed files with 34 additions and 9 deletions
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43
bin/cdist
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@ -23,6 +23,7 @@
import argparse import argparse
import datetime import datetime
import logging import logging
import multiprocessing
import os import os
import subprocess import subprocess
import shutil import shutil
@ -573,6 +574,15 @@ class Cdist:
self.target_host, self.target_host,
duration.total_seconds()) duration.total_seconds())
def deploy_and_cleanup(self):
"""Do what is most often done: deploy & cleanup"""
self.deploy_to()
self.cleanup()
def foo():
print("test")
if __name__ == "__main__": if __name__ == "__main__":
parser = argparse.ArgumentParser(description='cdist ' + VERSION) parser = argparse.ArgumentParser(description='cdist ' + VERSION)
parser.add_argument('host', nargs='*', help='one or more hosts to operate on') parser.add_argument('host', nargs='*', help='one or more hosts to operate on')
@ -587,13 +597,12 @@ if __name__ == "__main__":
parser.add_argument('-i', '--initial-manifest', parser.add_argument('-i', '--initial-manifest',
help='Path to a cdist manifest or - to read from stdin', help='Path to a cdist manifest or - to read from stdin',
dest='manifest', required=False) dest='manifest', required=False)
# parser.add_argument('-p', '--parallel', parser.add_argument('-p', '--parallel',
# help='Operate on multiple hosts in parallel', help='Operate on multiple hosts in parallel',
# action='store_true', dest='parallel') action='store_true', dest='parallel')
# parser.add_argument('-s', '--sequential', parser.add_argument('-s', '--sequential',
# help='Operate on multiple hosts sequentially', help='Operate on multiple hosts sequentially',
# action='store_false', dest='parallel') action='store_false', dest='parallel')
parser.add_argument('-V', '--version', help='Show version', parser.add_argument('-V', '--version', help='Show version',
action='version', version='%(prog)s ' + VERSION) action='version', version='%(prog)s ' + VERSION)
@ -606,10 +615,26 @@ if __name__ == "__main__":
banner() banner()
sys.exit(0) sys.exit(0)
process = {}
time_start = datetime.datetime.now()
try: try:
for host in args.host: for host in args.host:
c = Cdist(host, initial_manifest=args.manifest, home=args.cdist_home) c = Cdist(host, initial_manifest=args.manifest, home=args.cdist_home)
c.deploy_to() if args.parallel:
c.cleanup() log.info("Starting child process for %s", host)
process[host] = multiprocessing.Process(target=c.deploy_and_cleanup)
process[host].start()
log.debug("After process for %s", host)
else:
c.deploy_and_cleanup()
if args.parallel:
for p in process.keys():
log.debug("Joining %s", p)
process[p].join()
time_end = datetime.datetime.now()
log.info("Total processing time: %s", (time_end - time_start).total_seconds())
except KeyboardInterrupt: except KeyboardInterrupt:
sys.exit(0) sys.exit(0)