mysql.py 文件源码

def failover(self, *args, **kwargs):
        cred_file = self.config.get('failover_creds', '/etc/mysql/failover.cnf')
        master = kwargs.get('master_host')
        if not master:
            return False, "No master_host given"

        with settings(hide('running')):
            return local("/usr/bin/mysqlmaster.py switch --new-master {} --defaults-extra-file={} "
                         "--dead-master --assume-yes".format(master, cred_file)).return_code == 0, ""