def installPackage( self, package, hostId ):
# hostId can be either numeric (the actual id) or it can be
# the name. In the latter case, try to find the host by its
# name
host = None
try:
if hostId.isdigit():
host = self.hosts[ int( hostId )]
else:
for next in self.hosts.values():
if hostId == next.hostname:
host = next
break
if not host:
raise Exception('Host not found')
except:
raise Exception( 'Host %s not found' % hostId )
self.log.info('Installing package %s on host %s' %( package, host.hostname ))
command = 'screen -S "install" sudo apt-get -y install "%s"\r\nexit\r\n' % package
channel = host.invokeShell()
screenReader = ScreenReader(self.name, channel, self.log)
screenReader.start()
channel.send( command )
screenReader.join( 60.0 )
log = screenReader.getBuffer()
self.log.info( 'Package %s installed' % package )
escapedPackageName = package.replace( "'", "\'" )
startScript = '/opt/webportal/%s/start.sh' % escapedPackageName
stopScript = '/opt/webportal/%s/stop.sh' % escapedPackageName
command = 'screen -S installer\r\n[ -e \'%s\' ]; echo "Start$?"\r\n \
[ -e \'%s\' ]; echo "Stop$?"\r\nexit\r\nexit\r\n' % ( startScript, stopScript )
channel = host.invokeShell()
screenReader = ScreenReader(self.name, channel, self.log)
screenReader.start()
channel.send( command )
screenReader.join( 30.0 )
output = screenReader.getBuffer()
startCommand = startScript if output.find( 'Start0' ) >= 0 else ''
stopCommand = stopScript if output.find( 'Stop0' ) >= 0 else ''
self.log.info( 'StartScript found: %s, StopScript found: %s' % ( startCommand, \
stopCommand ))
#self.log.info( output )
return log, startCommand, stopCommand
def loadParameters( self, component, action ):
host = component.host
channel = host.invokeShell()
channel.send( 'screen -S load_parameters\r\n' )
screenReader = ScreenReader( 'load_parameters', channel, self.log )
screenReader.start()
channel.send( action.parameterFile + ' load\r\n' )
channel.send( 'exit\r\n' )
screenReader.join( 15.0 )
rawData = screenReader.getBuffer()
try:
start = rawData.lower().index( '<configuration>' )
end = rawData.lower().index( '</configuration>' ) + len( '</configuration>' )
return rawData[ start:end ]
except ValueError,e:
raise ValueError( 'Invalid xml format' )
def saveParameters( self, component, action, data ):
host = component.host
channel = host.invokeShell()
channel.send( 'screen -S save_parameters\r\n' )
screenReader = ScreenReader( 'save_parameters', channel, self.log )
screenReader.start()
xml = '<configuration>'
nodes = []
for key,value in data.iteritems():
nodes.append( '<param name=\\"%s\\" value=\\"%s\\" />' % (
self.escapeXMLValue( key ), self.escapeXMLValue( value )))
xml += ''.join( nodes )
xml += '</configuration>'
command = action.parameterFile + ' save "%s"\r\n' % xml
self.log.debug( 'Sending command %s' % command )
channel.send( command )
channel.send( 'exit\r\n' )
screenReader.join( 10.0 )
rawData = screenReader.getBuffer()
return True