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Monday, November 9, 2009

Websphere Application Deployment Script

This jython Script will Install and Update Application on cluster of Websphere Application Server:

WRITTEN BY CHARANJEET SINGH

This Script install Application on cluster and map modules to Virtual Hosts

import sys,java
from java.util import Properties
from java.io import FileInputStream
from org.python.modules import time
lineSep = java.lang.System.getProperty('line.separator')


def appinstall(appfile,apppath,cluster,map_modules_cluster,map_modules_vh):

global AdminApp
global AdminConfig
global AdminControl

print " Getting Cell Name .."

cell = AdminControl.getCell()

print " Cell name is --> "+ cell

print " ----------------------------------------------------------------------------------------- "

###############################################################################################

## checking for the existence of application , is application exists then updating it and if it does not exists then installing it

application = AdminConfig.getid("/Deployment:"+appfile+"/")

if len(application) > 0:

print " ----------------------------------------------------------------------------------------- "

print " Application ---> " +appfile+ " is installed on cluster --> " + cluster

print " ----------------------------------------------------------------------------------------- "

print " Updating application --> " + appfile

pathToEAR = apppath

option1 = appfile

option2 = "\'app\'"

option3 = "-operation update -contents " + apppath + " -MapModulesToServers " + map_modules_cluster + " -MapWebModToVH " + map_modules_vh

print AdminApp.update(option1,'app',option3)

AdminConfig.save()

else :

print " Installing App on cluster --> " + cluster

print AdminApp.install(apppath , '[-appname '+appfile+' -cell '+cell+' -cluster '+cluster+' -MapModulesToServers '+map_modules_cluster+' -MapWebModToVH '+map_modules_vh+']')

print " ----------------------------------------------------------------------------- "

print " Application --> " +appfile+ " installed on cluster--> " +cluster

print " ----------------------------------------------------------------------------- "

print " Saving Configuration "

print " ----------------------------------------------------------------------------- "

AdminConfig.save()

print " ----------------------------------------------------------------------------- "

#####################Waiting for the application to expand and then starting the server################

print " Sleeping for 300 seconds after deploying application "

time.sleep(300)

app = AdminApp.isAppReady(appfile)

while (app == 'false'):

app = AdminApp.isAppReady(appfile)

if (app == 'true'):

print " Expansion of ear completed "

###########################Syncronizing Node######################

nodelist = AdminTask.listManagedNodes().split(lineSep)

for nodename in nodelist :

print " Syncronizing node.......... "

####################Identifying the ConfigRepository MBean and assign it to variable######################

repo = AdminControl.completeObjectName('type=ConfigRepository,process=nodeagent,node='+ nodename +',*')

print AdminControl.invoke(repo, 'refreshRepositoryEpoch')

sync = AdminControl.completeObjectName('cell='+ cell +',node='+ nodename +',type=NodeSync,*')

print AdminControl.invoke(sync , 'sync')

print " ----------------------------------------------------------------------------------------- "

print " Full Resyncronization completed "

print " ----------------------------------------------------------------------------------------- "


########################################################################################################

arglen=len(sys.argv)

num_exp_args=3

if (arglen != num_exp_args):

print "Three arguments are required. Two arguments should be a properties file."

print " ----------------------------------------------------------------------------------------- "

sys.exit(-1)

propFile=sys.argv[0]
propFile1=sys.argv[1]

properties=Properties();


try:

properties.load(FileInputStream(propFile))
properties.load(FileInputStream(propFile1))

print " ----------------------------------------------------------------------------------------- "

print "Succesfully read property file "+propFile
print "Succesfully read property file "+propFile1

print " ----------------------------------------------------------------------------------------- "

except:

print "Cannot read property file "+propFile
print "Cannot read property file "+propFile1
sys.exit(-1)

print " ----------------------------------------------------------------------------------------- "


appfile = str(properties.getProperty("APPLICATION_NAME"))

apppath = sys.argv[2]

cluster = str(properties.getProperty("CLUSTER_NAME"))

map_modules_cluster = str(properties.getProperty("MAP_MODULES_TO_SERVER"))

map_modules_vh = str(properties.getProperty("MAP_MODULES_TO_VH"))

print " app file " + appfile
print " apppath " + apppath
print " cluster " + cluster
print " map_modules_cluster " + map_modules_cluster
print " map_modules_vh " + map_modules_vh

appinstall(appfile,apppath,cluster,map_modules_cluster,map_modules_vh)

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