'Reads the settings from the ec2.ini file'

def read_settings(self):

    config = ConfigParser.SafeConfigParser()
    config.read(self.args.inifile)
    self.eucalyptus_host = None
    self.eucalyptus = False
    if config.has_option('ec2', 'eucalyptus'):
        self.eucalyptus = config.getboolean('ec2', 'eucalyptus')
    if (self.eucalyptus and config.has_option('ec2', 'eucalyptus_host')):
        self.eucalyptus_host = config.get('ec2', 'eucalyptus_host')
    self.regions = []
    configRegions = config.get('ec2', 'regions')
    configRegions_exclude = config.get('ec2', 'regions_exclude')
    if (configRegions == 'all'):
        if self.eucalyptus_host:
            self.regions.append(boto.connect_euca(host=self.eucalyptus_host).region.name)
        else:
            for regionInfo in ec2.regions():
                if (regionInfo.name not in configRegions_exclude):
                    self.regions.append(regionInfo.name)
    else:
        self.regions = configRegions.split(',')
    self.destination_variable = config.get('ec2', 'destination_variable')
    self.vpc_destination_variable = config.get('ec2', 'vpc_destination_variable')
    self.route53_enabled = config.getboolean('ec2', 'route53')
    self.route53_excluded_zones = []
    if config.has_option('ec2', 'route53_excluded_zones'):
        self.route53_excluded_zones.extend(config.get('ec2', 'route53_excluded_zones', '').split(','))
    if ('EC2_CACHE_PATH' in os.environ):
        cache_path = os.environ['EC2_CACHE_PATH']
    elif self.args.cache_path:
        cache_path = self.args.cache_path
    else:
        cache_path = config.get('ec2', 'cache_path')
    if (not os.path.exists(cache_path)):
        os.makedirs(cache_path)
    if ('AWS_PROFILE' in os.environ):
        aws_profile = '{}-'.format(os.environ.get('AWS_PROFILE'))
    else:
        aws_profile = ''
    self.cache_path_cache = (cache_path + '/{}ansible-ec2.cache'.format(aws_profile))
    self.cache_path_tags = (cache_path + '/{}ansible-ec2.tags.cache'.format(aws_profile))
    self.cache_path_index = (cache_path + '/{}ansible-ec2.index'.format(aws_profile))
    self.cache_max_age = config.getint('ec2', 'cache_max_age')
