#!/usr/bin/python from gearman import GearmanWorker import subprocess import json import time import re def osWorker(worker, job): ret = {"rawoutput": "", "rc": -1} target = job.data.strip() validIpAddressRegex = "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$" validHostnameRegex = "^(([a-zA-Z]|[a-zA-Z][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z]|[A-Za-z][A-Za-z0-9\-]*[A-Za-z0-9])$" if not (re.match(validIpAddressRegex, target) or re.match(validHostnameRegex, target)): print 'malformed request' return json.dumps({"err":"invalid parameter - must be ip or host address", "alive":False}) + "\n" host = target port = 22 user = "root" sshopts = "-o PasswordAuthentication=no -a" keyfile = "/etc/systemd/workers.ssh/id_rsa" remotecmd = "lsb_release -a" cmd = "ssh -p {p} -l {l} -i {i} {o} {h} {r}".format(p=port, l=user, i=keyfile, o=sshopts, h=host, r=remotecmd) print cmd sshCommand = subprocess.Popen(["sh", "-c", "%s" % cmd], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE) while sshCommand.returncode == None: out = sshCommand.stdout.readline() if out != "": ret['rawoutput'] += out time.sleep(0.05) sshCommand.poll() while True: out = sshCommand.stdout.readline() if out != "": ret['rawoutput'] += out else: break ret['rawoutput'] = ret['rawoutput'].strip() # get rid of newlines rc = ret['rc'] = sshCommand.returncode if rc == 0: lines = ret['rawoutput'].splitlines() for l in xrange(len(lines)): (key, value) = lines[l].split(":") ret[key.strip()] = value.strip() print 'remote command successful.' return json.dumps(ret) + "\n" else: ret['err'] = "" while True: out = sshCommand.stderr.readline() if out != "": ret['err'] += out else: break print 'remote command failed' return json.dumps(ret) + "\n" worker = GearmanWorker(["127.0.0.1"]) worker.register_task('os', osWorker) worker.work()