1 ##############################################################################
2 # Copyright (c) 2015 Huawei Technologies Co.,Ltd and others.
4 # All rights reserved. This program and the accompanying materials
5 # are made available under the terms of the Apache License, Version 2.0
6 # which accompanies this distribution, and is available at
7 # http://www.apache.org/licenses/LICENSE-2.0
8 ##############################################################################
12 from vstf.common.utils import randomMAC
14 LOG = logging.getLogger(__name__)
17 class IntentParser(object):
19 def __init__(self, cfg_file):
20 self.cfg_file = cfg_file
21 with file(cfg_file) as fp:
22 self.cfg_intent = json.load(fp)
24 def parse_cfg_file(self):
28 return self.cfg_intent
30 def set_default(self):
31 for host_cfg in self.cfg_intent['env-build']:
32 host_cfg.setdefault("scheme", 'libvirt')
33 host_cfg.setdefault("drivers", [])
34 host_cfg.setdefault("vms", [])
35 host_cfg.setdefault("bridges", [])
36 for vm_cfg in host_cfg["vms"]:
37 vm_cfg.setdefault("init_config", {})
38 vm_cfg["init_config"].setdefault('amqp_port', 5672)
39 vm_cfg["init_config"].setdefault('amqp_user', "guest")
40 vm_cfg["init_config"].setdefault('amqp_passwd', "guest")
41 vm_cfg["init_config"].setdefault('amqp_id', "")
43 def _nomornize_boolean(self, flag):
44 if isinstance(flag, bool):
51 raise Exception("flag %s cannot be nomonized to bool value" % flag)
53 def parse_br_type(self):
54 for host_cfg in self.cfg_intent['env-build']:
55 br_cfgs = host_cfg['bridges']
57 for br_cfg in br_cfgs:
58 br_type_set.add(br_cfg["type"])
59 for vm_cfg in host_cfg['vms']:
60 for tap_cfg in vm_cfg['taps']:
61 br_type_set.add(tap_cfg["br_type"])
62 if len(br_type_set) > 1:
64 "specified more than one type of vswitchfor host:%s" %
66 if len(br_type_set) > 0:
67 br_type = br_type_set.pop()
68 host_cfg['br_type'] = br_type
70 def parse_vms_cfg(self):
71 for host_cfg in self.cfg_intent['env-build']:
72 vm_cfgs = host_cfg["vms"]
73 self._parse_vm_init_cfg(vm_cfgs)
74 self._parse_vm_ctrl_cfg(vm_cfgs)
75 for vm_cfg in vm_cfgs:
76 self._parse_taps_cfg(vm_cfg['taps'])
78 def _parse_taps_cfg(self, tap_cfgs):
82 for tap_cfg in tap_cfgs:
84 tap_name_set.add(tap_cfg["tap_mac"])
85 tap_mac_set.add(tap_cfg["tap_name"])
86 if len(tap_mac_set) != len(tap_name_set) != count:
87 raise Exception('config same tap_mac/tap_name for different taps')
88 LOG.info("tap_name_set: %s", tap_name_set)
89 LOG.info("tap_mac_set: %s", tap_mac_set)
91 def _parse_vm_init_cfg(self, vm_cfgs):
95 required_options = {"ctrl_ip_setting", "ctrl_gw", "amqp_server"}
96 for vm_cfg in vm_cfgs:
97 init_cfg = vm_cfg["init_config"]
98 sub = required_options - set(init_cfg.keys())
100 raise Exception("unset required options:%s" % sub)
102 ip_set.add(init_cfg["ctrl_ip_setting"])
103 gw_set.add(init_cfg["ctrl_gw"])
105 raise Exception("cannot config more than one gw for vm")
106 if len(ip_set) < count:
107 raise Exception("config same ip for different vm")
108 LOG.info("ip_set: %s", ip_set)
109 LOG.info("gw_set: %s", gw_set)
111 def _parse_vm_ctrl_cfg(self, vm_cfgs):
115 for vm_cfg in vm_cfgs:
117 vm_cfg.setdefault("ctrl_mac", randomMAC())
118 vm_cfg.setdefault("ctrl_br", 'br0')
119 ctrl_mac_set.add(vm_cfg['ctrl_mac'])
120 ctrl_br_set.add(vm_cfg['ctrl_br'])
121 if len(ctrl_br_set) > 1:
122 raise Exception("cannot config more than one ctrl_br_set.")
123 if len(ctrl_mac_set) < count:
124 raise Exception("config same ctrl_mac_set for different vm.")
125 LOG.info("ctrl_mac_set: %s", ctrl_mac_set)
126 LOG.info("ctrl_br_set: %s", ctrl_br_set)
129 if __name__ == '__main__':
132 parser = argparse.ArgumentParser()
133 parser.add_argument('--config', help='config file to parse')
134 args = parser.parse_args()
135 logging.basicConfig(level=logging.INFO)
136 p = IntentParser(args.config)
137 LOG.info(json.dumps(p.parse_cfg_file(), indent=4))