JezK

Edit File: team2bond

#!/usr/bin/python3 # vim: sts=4 ts=4 sw=4 expandtab : from optparse import OptionParser, OptionGroup import subprocess import json import sys def handle_cmd_line(): parser = OptionParser() parser.add_option('--config', dest='config', default = '', help = "convert the team JSON format configuration file " \ + "to NetworkManager connection profile, please use " \ + "'teamdctl TEAM config dump [actual]' to dump the config file." \ + " Note the script only convert config file. IP " \ + "address configurations still need to be set manually.") parser.add_option('--rename', dest='rename', default = '', help = "rename the default team interface name." \ + " Careful: firewall rules, aliases interfaces, etc., " \ + "will break after the renaming because the tool " \ + "will only change the config file, nothing else.") group = OptionGroup(parser, 'Dangerous Options', "Caution: You need to dump the team configuration " \ "file first and then delete old team device to avoid " \ "device name conflicts.") group.add_option('--exec-cmd', dest='exec_cmd', action='store_true', default = False, help = "exec nmcli and add the connections directly " \ + "instead of printing the nmcli cmd to screen. " \ + "This parameter is NOT recommended, it would be good " \ + "to double check the cmd before apply.") parser.add_option_group(group) (options, args) = parser.parse_args() if subprocess.run(['nmcli', '-v'], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL).returncode != 0: print("Warn: NetworkManager is needed for this script!"); sys.exit(1) return options def convert_runner_opts(runner_opts): bond_opts = "" if runner_opts['name'] == 'broadcast': bond_opts = "mode=broadcast" elif runner_opts['name'] == 'roundrobin': bond_opts = "mode=balance-rr" elif runner_opts['name'] == 'activebackup': bond_opts = "mode=active-backup" if 'hwaddr_policy' in runner_opts: if runner_opts['hwaddr_policy'] == 'same_all': bond_opts += ",fail_over_mac=none" elif runner_opts['hwaddr_policy'] == 'by_active': bond_opts += ",fail_over_mac=active" elif runner_opts['hwaddr_policy'] == 'only_active': bond_opts += ",fail_over_mac=follow" else: print("# Warn: invalid runner.hwaddr_policy: " + runner_opts['hwaddr_policy']) elif runner_opts['name'] == 'loadbalance': bond_opts = "mode=balance-tlb" elif runner_opts['name'] == 'lacp': bond_opts = "mode=802.3ad" if 'active' in runner_opts: print("# Warn: option runner.active: %r is not supported by bonding" % runner_opts['active']) if 'fast_rate' in runner_opts: if runner_opts['fast_rate']: bond_opts += ",lacp_rate=1" else: bond_opts += ",lacp_rate=0" if 'sys_prio' in runner_opts: bond_opts += ",ad_actor_sys_prio=" + str(runner_opts['sys_prio']) if 'min_ports' in runner_opts: bond_opts += ",min_links=" + str(runner_opts['min_ports']) if 'agg_select_policy' in runner_opts: if runner_opts['agg_select_policy'] == 'bandwidth': bond_opts += ",ad_select=bandwidth" elif runner_opts['agg_select_policy'] == 'count': bond_opts += ",ad_select=count" else: print("# Warn: Option runner.agg_select_policy: %s is not supported by bonding" % runner_opts['agg_select_policy']) sys.exit(1) else: print("Error: Unsupported runner.name: %s for bonding" % runner_opts['name']) sys.exit(1) if 'tx_hash' in runner_opts: print("# Warn: tx_hash ipv4, ipv6, tcp, udp, sctp are not supported by bonding") if 'vlan' in runner_opts['tx_hash']: bond_opts +=",xmit_hash_policy=vlan+srcmac" if 'eth' in runner_opts['tx_hash']: bond_opts +=",xmit_hash_policy=layer2" if 'l3' in runner_opts['tx_hash'] or 'ip' in runner_opts['tx_hash']: bond_opts +="+3" elif ('l3' in runner_opts['tx_hash'] or 'ip' in runner_opts['tx_hash']) \ and 'l4' in runner_opts['tx_hash']: bond_opts +=",xmit_hash_policy=layer3+4" if 'tx_balancer' in runner_opts: if 'name' in runner_opts['tx_balancer']: if runner_opts['tx_balancer']['name'] == 'basic': bond_opts += ",tlb_dynamic_lb=1" if 'balancing_interval' in runner_opts['tx_balancer']: print("# Warn: option runner.tx_balancer.balancing_interval: %d is not supported by bonding" % runner_opts['tx_balancer']['balancing_interval']) return bond_opts # arp_target is used to store multi targets # exist_opts is used to check if there are duplicated arp_intervals def convert_link_watch(link_watch_opts, arp_target, exist_opts): bond_opts="" if 'name' not in link_watch_opts: print("Error: no link_watch.name in team config file!") sys.exit(1) if link_watch_opts['name'] == 'ethtool': if exist_opts.find("arp_interval") >= 0: print("# Warn: detecte miimon(ethtool) setting, but arp_interval(arp_ping) already set, will ignore.") return bond_opts if exist_opts.find("miimon") >= 0: print("# Warn: duplicated miimon detected, bonding supports only one.") else: bond_opts += ",miimon=100" if 'delay_up' in link_watch_opts: if exist_opts.find('updelay') >= 0: print("# Warn: duplicated updelay detected, bonding supports only one.") else: bond_opts += ",updelay=" + str(link_watch_opts['delay_up']) if 'delay_down' in link_watch_opts: if exist_opts.find('downdelay') >= 0: print("# Warn: duplicated downdelay detected, bonding supports only one.") else: bond_opts += ",downdelay=" + str(link_watch_opts['delay_down']) elif link_watch_opts['name'] == 'arp_ping': if exist_opts.find("miimon") >= 0: print("# Warn: detecte arp_interval(arp_ping) setting, but miimon(ethtool) already set, will ignore.") return bond_opts if 'interval' in link_watch_opts: if exist_opts.find('arp_interval') >= 0: print("# Warn: duplicated arp_interval detected, bonding supports only one.") else: bond_opts += ",arp_interval=" + str(link_watch_opts['interval']) if 'target_host' in link_watch_opts: arp_target.append(link_watch_opts['target_host']) if 'validate_active' in link_watch_opts and link_watch_opts['validate_active'] and \ 'validate_inactive' in link_watch_opts and link_watch_opts['validate_inactive']: if exist_opts.find('arp_validate') >= 0: print("# Warn: duplicated arp_validate detected, bonding supports only one.") else: bond_opts += ",arp_validate=all" elif 'validate_active' in link_watch_opts and link_watch_opts['validate_active']: if exist_opts.find('arp_validate') >= 0: print("# Warn: duplicated arp_validate detected, bonding supports only one.") else: bond_opts += ",arp_validate=active" elif 'validate_inactive' in link_watch_opts and link_watch_opts['validate_inactive']: if exist_opts.find('arp_validate') >= 0: print("# Warn: duplicated arp_validate detected, bonding supports only one.") else: bond_opts += ",arp_validate=backup" if 'init_wait' in link_watch_opts: print("# Warn: option link_watch.init_wait: %d is not supported by bonding" % link_watch_opts['init_wait']) if 'missed_max' in link_watch_opts: print("# Warn: option link_watch.missed_max: %d is not supported by bonding" % link_watch_opts['missed_max']) if 'source_host' in link_watch_opts: print("# Warn: option link_watch.source_host: %s is not supported by bonding" % link_watch_opts['source_host']) if 'vlanid' in link_watch_opts: print("# Warn: option link_watch.vlanid: %d is not supported by bonding" % link_watch_opts['vlanid']) if 'send_always' in link_watch_opts: print("# Warn: option link_watch.send_always: %r is not supported by bonding" % link_watch_opts['send_always']) else: print("# Error: Option link_watch.name: %s is not supported by bonding" % link_watch_opts['name']) sys.exit(1) return bond_opts def convert_opts(bond_name, team_opts, exec_cmd): bond_opts = "" # Check runner/mode first if 'runner' in team_opts: bond_opts = convert_runner_opts(team_opts['runner']) else: print("Error: No runner in team config file!") sys.exit(1) if 'hwaddr' in team_opts: print("# Warn: option hwaddr: %s is not supported by bonding" % team_opts['hwaddr']) if 'notify_peers' in team_opts: if 'count' in team_opts['notify_peers']: bond_opts += ",num_grat_arp=" + str(team_opts['notify_peers']['count']) bond_opts += ",num_unsol_na=" + str(team_opts['notify_peers']['count']) if 'interval' in team_opts['notify_peers']: bond_opts += ",peer_notif_delay=" + str(team_opts['notify_peers']['interval']) if 'mcast_rejoin' in team_opts: if 'count' in team_opts['mcast_rejoin']: bond_opts += ",resend_igmp=" + str(team_opts['mcast_rejoin']['count']) if 'interval' in team_opts['mcast_rejoin']: print("# Warn: option mcast_rejoin.interval: %d is not supported by bonding" % team_opts['mcast_rejoin']['count']) # The link_watch maybe a dict or list arp_target = list() if 'link_watch' in team_opts: if isinstance(team_opts['link_watch'], list): for link_watch_opts in team_opts['link_watch']: bond_opts += convert_link_watch(link_watch_opts, arp_target, bond_opts) elif isinstance(team_opts['link_watch'], dict): bond_opts += convert_link_watch(team_opts['link_watch'], arp_target, bond_opts) # Check link watch in team ports if we don't have global link_watch elif 'ports' in team_opts: for iface in team_opts['ports']: if 'link_watch' in team_opts['ports'][iface]: bond_opts += convert_link_watch(team_opts['ports'][iface]['link_watch'], arp_target, bond_opts) else: print("Warn: No link_watch in team config file, use miimon=100 by default") bond_opts += ",miimon=100" if arp_target: bond_opts += ",arp_ip_target=" + " ".join(arp_target) if exec_cmd: subprocess.run(['nmcli', 'con', 'add', 'type', 'bond', 'ifname', bond_name, 'bond.options', bond_opts]) else: print('nmcli con add type bond ifname ' + bond_name \ + ' bond.options "' + bond_opts + '"') def setup_ports(bond_name, team_opts, exec_cmd): primary = {'name': "", 'prio': -2**63, 'sticky': False} bond_ports = [] lacp_key = 0 prio = 0 if 'ports' in team_opts: for iface in team_opts['ports']: bond_ports.append(iface) if 'link_watch' in team_opts['ports'][iface] and \ 'link_watch' in team_opts: print("# Warn: Option link_watch in interface %s will be ignored as we have global link_watch set!" % iface) if 'queue_id' in team_opts['ports'][iface]: print("# Warn: Option queue_id: %d on interface %s is not supported by NM yet, please see rhbz:1949127" % (team_opts['ports'][iface]['queue_id'], iface)) if 'lacp_prio' in team_opts['ports'][iface]: print("# Warn: Option lacp_prio: %d on interface %s is not supported by bonding" % (team_opts['ports'][iface]['lacp_prio'], iface)) if 'lacp_key' in team_opts['ports'][iface]: if lacp_key == 0: lacp_key = team_opts['ports'][iface]['lacp_key'] if lacp_key < 0 or lacp_key > 1023: lacp_key = 0 print("# Warn: Option lacp_key: Invalid value %d for port %s" % (lacp_key, iface)) else: print("# Warn: Option lacp_key: already has one key %d, ignore the new one %d" % (lacp_key, team_opts['ports'][iface]['lacp_key'])) if 'prio' in team_opts['ports'][iface]: prio = int(team_opts['ports'][iface]['prio']) if prio > primary['prio'] and primary['sticky'] is False: primary['name'] = iface primary['prio'] = prio if 'sticky' in team_opts['ports'][iface] and \ team_opts['ports'][iface]['sticky']: primary['name'] = iface primary['sticky'] = True for port in bond_ports: ret = subprocess.run(['nmcli', '-g', 'general.type', 'dev', 'show', port], stderr=subprocess.PIPE, stdout=subprocess.PIPE) if ret.returncode != 0: print("# Warn: Get dev %s type failed, will use type ethernet by default" % port) if_type = 'ethernet' elif ret.stdout.find(b'ethernet') != 0: print("# Warn: %s is not a ethernet device, please make sure the type is correct" % port) if_type = str(ret.stdout, 'utf-8').strip() else: if_type = str(ret.stdout, 'utf-8').strip() if exec_cmd: subprocess.run(['nmcli', 'con', 'add', 'type', if_type, 'ifname', port, 'master', bond_name]) else: print('nmcli con add type %s ifname %s master %s' % (if_type, port, bond_name)) if lacp_key != 0: if exec_cmd: subprocess.run(['nmcli', 'con', 'mod', 'bond-' + bond_name, '+bond.options', "ad_user_port_key=" + str(lacp_key)]) else: print('nmcli con mod bond-' + bond_name \ + ' +bond.options "ad_user_port_key=' + str(lacp_key) + '"') if primary['name']: if exec_cmd: subprocess.run(['nmcli', 'con', 'mod', 'bond-' + bond_name, '+bond.options', "primary=" + primary['name']]) else: print('nmcli con mod bond-' + bond_name \ + ' +bond.options "primary=' + primary['name'] + '"') def main(): options = handle_cmd_line() team_opts = dict() if options.config: try: with open(options.config, 'r') as f: team_opts = json.load(f) except OSError as e: print(e) sys.exit(1) else: print("Error: Please supply a team config file") sys.exit(1) if not team_opts['device']: print("Error: No team device name in team config file") sys.exit(1) if not options.exec_cmd: print("### These are the commands to configure a bond interface " + "similar to this team config (remember to remove the old team " + "device before exec the following cmds):") if options.rename: bond_name = options.rename else: bond_name = team_opts['device'] convert_opts(bond_name, team_opts, options.exec_cmd) setup_ports(bond_name, team_opts, options.exec_cmd) if not options.exec_cmd: print("### After this, IP addresses, routes, and so on, need to be configured.") if __name__ == '__main__': main()