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from Exceptions import *
import utils


def Run( vars, log ):
    """
    Initialize the node:
    - runs planetlabconf

    Except the following variables from the store:
    SYSIMG_PATH             the path where the system image will be mounted
    (always starts with TEMP_PATH)

    Sets the following variables:
    None
    
    """

    log.write( "\n\nStep: Install: Final node initialization.\n" )

    # make sure we have the variables we need
    try:
        SYSIMG_PATH= vars["SYSIMG_PATH"]
        if SYSIMG_PATH == "":
            raise ValueError, "SYSIMG_PATH"

    except KeyError, var:
        raise BootManagerException, "Missing variable in vars: %s\n" % var
    except ValueError, var:
        raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var


    log.write( "Running PlanetLabConf to update any configuration files\n" )

    if not utils.sysexec( "chroot %s PlanetLabConf.py noscripts" %
                          SYSIMG_PATH, log ):
        log.write( "PlanetLabConf failed, install incomplete.\n" )
        return 0
                
    services= [ "netfs", "rawdevices", "cpuspeed", "smartd" ]
    for service in services:
        log.write( "Disabling unneeded service: %s\n" % service )
        utils.sysexec( "chroot %s chkconfig --level 12345 %s off" %
                       (SYSIMG_PATH,service), log )
            
    return 1