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#!/usr/bin/python
##
#
# Copyright (c) 2011 Gluster, Inc. <http://www.gluster.com>
# This file is part of GlusterFS.
#
# Licensed under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied. See the License for the specific language governing
# permissions and limitations under the License.
#
##
import getopt
import glob
import sys, os
import shutil
import subprocess, shlex
def usage():
print "usage: python build-deploy-jar.py [-b/--build] -d/--dir <hadoop-home> [-c/--core] [-m/--mapred] [-h/--henv]"
def addSlash(s):
if not (s[-1] == '/'):
s = s + '/'
return s
def whereis(program):
abspath = None
for path in (os.environ.get('PATH', '')).split(':'):
abspath = os.path.join(path, program)
if os.path.exists(abspath) and not os.path.isdir(abspath):
return abspath
return None
def getLatestJar(targetdir):
latestJar = None
glusterfsJar = glob.glob(targetdir + "*.jar")
if len(glusterfsJar) == 0:
print "No GlusterFS jar file found in %s ... exiting" % (targetdir)
return None
# pick up the latest jar file - just in case ...
stat = latestJar = None
ctime = 0
for jar in glusterfsJar:
stat = os.stat(jar)
if stat.st_ctime > ctime:
latestJar = jar
ctime = stat.st_ctime
return latestJar
# build the glusterfs hadoop plugin using maven
def build_jar():
location = whereis('mvn')
if location == None:
print "Cannot find maven to build glusterfs hadoop jar"
print "please install maven or if it's already installed then fix your PATH environ"
return None
# do a clean packaging
targetdir = "./target/"
if os.path.exists(targetdir) and os.path.isdir(targetdir):
print "Cleaning up directories ... [ " + targetdir + " ]"
shutil.rmtree(targetdir)
print "Building glusterfs jar ..."
process = subprocess.Popen(['package'], shell=True,
executable=location, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
try:
(pout, perr) = process.communicate()
except:
process.wait()
if not process.returncode == 0:
print "Building glusterfs jar failed"
return None
latestJar = getLatestJar(targetdir)
return latestJar
def rcopy(f, host, libdir):
print " * doing remote copy to host %s" % (host)
scpCmd = "scp %s %s:%s" % (f, host, libdir)
os.system(scpCmd);
def deployInSlave(f, confdir, libdir, cc, cm, he):
slavefile = confdir + "slaves"
ccFile = confdir + "core-site.xml"
cmFile = confdir + "mapred-site.xml"
heFile = confdir + "hadoop-env.sh"
sf = open(slavefile, 'r')
for host in sf:
host = host.rstrip('\n')
print " >>> Deploying %s on %s ..." % (os.path.basename(f), host)
rcopy(f, host, libdir)
if cc:
print " >>> Deploying [%s] on %s ..." % (os.path.basename(ccFile), host)
rcopy(ccFile, host, confdir)
if cm:
print " >>> Deploying [%s] on %s ..." % (os.path.basename(cmFile), host)
rcopy(cmFile, host, confdir)
if he:
print " >>> Deploying [%s] on %s ..." % (os.path.basename(heFile), host)
rcopy(heFile, host, confdir);
print "<<< Done\n"
sf.close()
def deployInMaster(f, confdir, libdir):
import socket
masterfile = confdir + "masters"
mf = open(masterfile, 'r')
for host in mf:
host = host.rstrip('\n')
print " >>> Deploying %s on %s ..." % (os.path.basename(f), host)
h = host
try:
socket.inet_aton(host)
h = socket.getfqdn(host)
except socket.error:
# host is not a ip adddress
pass
if h == socket.gethostname() or h == 'localhost':
# local cp
print " * doing local copy"
shutil.copy(f, libdir)
else:
# scp the file
rcopy(f, h, libdir)
print "<<< Done\n"
mf.close()
if __name__ == '__main__':
opt = args = []
try:
opt, args = getopt.getopt(sys.argv[1:], "bd:cmh", ["build", "dir=", "core", "mapred", "henv"]);
except getopt.GetoptError, err:
print str(err)
usage()
sys.exit(1)
needbuild = hadoop_dir = copyCore = copyMapred = copyHadoopEnv = None
for k, v in opt:
if k in ("-b", "--build"):
needbuild = True
elif k in ("-d", "--dir"):
hadoop_dir = v
elif k in ("-c", "--core"):
copyCore = True
elif k in ("-m", "--mapred"):
copyMapred = True
elif k in ("-h", "--henv"):
copyHadoopEnv = True
else:
assert False, "unhandled option"
assert not hadoop_dir == None, "hadoop directory missing"
if needbuild:
jar = build_jar()
if jar == None:
sys.exit(1)
else:
jar = getLatestJar('./target/')
if jar == None:
print "Maybe you want to build it ? -b option"
sys.exit(1)
print ""
print "*** Deploying %s *** " % (jar)
# copy jar to local hadoop distribution (master)
hadoop_home = addSlash(hadoop_dir)
if not (os.path.exists(hadoop_home) and os.path.isdir(hadoop_home)):
print "path " + hadoop_home + " does not exist or is not adiretory";
sys.exit(1);
hadoop_conf = hadoop_home + "conf/"
hadoop_lib = hadoop_home + "lib/"
print " >>> Scanning hadoop master file for host(s) to deploy"
deployInMaster(jar, hadoop_conf, hadoop_lib)
print ""
print " >>> Scanning hadoop slave file for host(s) to deploy"
deployInSlave(jar, hadoop_conf, hadoop_lib, copyCore, copyMapred, copyHadoopEnv)
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