855 lines
28 KiB
Python
855 lines
28 KiB
Python
#!/usr/bin/python
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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DOCUMENTATION = '''
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---
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module: nxos_ospf_vrf
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version_added: "2.2"
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short_description: Manages a VRF for an OSPF router.
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description:
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- Manages a VRF for an OSPF router.
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author: Gabriele Gerbino (@GGabriele)
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extends_documentation_fragment: nxos
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notes:
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- Value I(default) restores params default value, if any.
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Otherwise it removes the existing param configuration.
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options:
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vrf:
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description:
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- Name of the resource instance. Valid value is a string.
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The name 'default' is a valid VRF representing the global OSPF.
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required: false
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default: default
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ospf:
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description:
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- Name of the OSPF instance.
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required: true
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default: null
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router_id:
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description:
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- Router Identifier (ID) of the OSPF router VRF instance.
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required: false
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default: null
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default_metric:
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description:
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- Specify the default Metric value. Valid values are an integer
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or the keyword 'default'.
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required: false
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default: null
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log_adjacency:
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description:
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- Controls the level of log messages generated whenever a
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neighbor changes state. Valid values are 'log', 'detail',
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and 'default'.
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required: false
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choices: ['log','detail','default']
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default: null
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timer_throttle_lsa_start:
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description:
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- Specify the start interval for rate-limiting Link-State
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Advertisement (LSA) generation. Valid values are an integer,
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in milliseconds, or the keyword 'default'.
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required: false
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default: null
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timer_throttle_lsa_hold:
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description:
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- Specify the hold interval for rate-limiting Link-State
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Advertisement (LSA) generation. Valid values are an integer,
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in milliseconds, or the keyword 'default'.
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required: false
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default: null
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timer_throttle_lsa_max:
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description:
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- Specify the max interval for rate-limiting Link-State
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Advertisement (LSA) generation. Valid values are an integer,
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in milliseconds, or the keyword 'default'.
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required: false
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default: null
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timer_throttle_spf_start:
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description:
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- Specify initial Shortest Path First (SPF) schedule delay.
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Valid values are an integer, in milliseconds, or
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the keyword 'default'.
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required: false
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default: null
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timer_throttle_spf_hold:
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description:
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- Specify minimum hold time between Shortest Path First (SPF)
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calculations. Valid values are an integer, in milliseconds,
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or the keyword 'default'.
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required: false
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default: null
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timer_throttle_spf_max:
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description:
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- Specify the maximum wait time between Shortest Path First (SPF)
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calculations. Valid values are an integer, in milliseconds,
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or the keyword 'default'.
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required: false
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default: null
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auto_cost:
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description:
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- Specifies the reference bandwidth used to assign OSPF cost.
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Valid values are an integer, in Mbps, or the keyword 'default'.
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required: false
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default: null
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m_facts:
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description:
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- Used to print module facts
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required: false
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default: false
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choices: ['true','false']
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'''
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EXAMPLES = '''
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- nxos_ospf_vrf:
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ospf: 1
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timer_throttle_spf_start: 50
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timer_throttle_spf_hold: 1000
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timer_throttle_spf_max: 2000
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timer_throttle_lsa_start: 60
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timer_throttle_lsa_hold: 1100
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timer_throttle_lsa_max: 3000
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vrf: test
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m_facts: true
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state: present
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username: "{{ un }}"
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password: "{{ pwd }}"
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host: "{{ inventory_hostname }}"
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'''
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RETURN = '''
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proposed:
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description: k/v pairs of parameters passed into module
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returned: when I(m_facts)=true
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type: dict
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sample: {"ospf": "1", "timer_throttle_lsa_hold": "1100",
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"timer_throttle_lsa_max": "3000", "timer_throttle_lsa_start": "60",
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"timer_throttle_spf_hold": "1000",
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"timer_throttle_spf_max": "2000", "timer_throttle_spf_start": "50",
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"vrf": "test"}
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existing:
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description: k/v pairs of existing configuration
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returned: when I(m_facts)=true
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type: dict
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sample: {"auto_cost": "40000", "default_metric": "", "log_adjacency": "",
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"ospf": "1", "router_id": "", "timer_throttle_lsa_hold": "5000",
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"timer_throttle_lsa_max": "5000", "timer_throttle_lsa_start": "0",
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"timer_throttle_spf_hold": "1000",
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"timer_throttle_spf_max": "5000",
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"timer_throttle_spf_start": "200", "vrf": "test"}
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end_state:
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description: k/v pairs of configuration after module execution
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returned: when I(m_facts)=true
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type: dict
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sample: {"auto_cost": "40000", "default_metric": "", "log_adjacency": "",
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"ospf": "1", "router_id": "", "timer_throttle_lsa_hold": "1100",
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"timer_throttle_lsa_max": "3000", "timer_throttle_lsa_start": "60",
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"timer_throttle_spf_hold": "1000",
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"timer_throttle_spf_max": "2000", "timer_throttle_spf_start": "50",
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"vrf": "test"}
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updates:
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description: commands sent to the device
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returned: always
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type: list
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sample: ["router ospf 1", "vrf test", "timers throttle lsa 60 1100 3000",
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"timers throttle spf 50 1000 2000"]
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changed:
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description: check to see if a change was made on the device
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returned: always
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type: boolean
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sample: true
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'''
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# COMMON CODE FOR MIGRATION
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import re
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import time
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import collections
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import itertools
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import shlex
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import itertools
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from ansible.module_utils.basic import BOOLEANS_TRUE, BOOLEANS_FALSE
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DEFAULT_COMMENT_TOKENS = ['#', '!']
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class ConfigLine(object):
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def __init__(self, text):
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self.text = text
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self.children = list()
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self.parents = list()
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self.raw = None
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@property
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def line(self):
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line = ['set']
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line.extend([p.text for p in self.parents])
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line.append(self.text)
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return ' '.join(line)
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def __str__(self):
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return self.raw
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def __eq__(self, other):
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if self.text == other.text:
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return self.parents == other.parents
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def __ne__(self, other):
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return not self.__eq__(other)
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def ignore_line(text, tokens=None):
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for item in (tokens or DEFAULT_COMMENT_TOKENS):
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if text.startswith(item):
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return True
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def get_next(iterable):
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item, next_item = itertools.tee(iterable, 2)
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next_item = itertools.islice(next_item, 1, None)
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return itertools.izip_longest(item, next_item)
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def parse(lines, indent, comment_tokens=None):
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toplevel = re.compile(r'\S')
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childline = re.compile(r'^\s*(.+)$')
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ancestors = list()
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config = list()
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for line in str(lines).split('\n'):
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text = str(re.sub(r'([{};])', '', line)).strip()
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cfg = ConfigLine(text)
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cfg.raw = line
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if not text or ignore_line(text, comment_tokens):
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continue
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# handle top level commands
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if toplevel.match(line):
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ancestors = [cfg]
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# handle sub level commands
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else:
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match = childline.match(line)
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line_indent = match.start(1)
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level = int(line_indent / indent)
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parent_level = level - 1
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cfg.parents = ancestors[:level]
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if level > len(ancestors):
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config.append(cfg)
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continue
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for i in range(level, len(ancestors)):
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ancestors.pop()
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ancestors.append(cfg)
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ancestors[parent_level].children.append(cfg)
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config.append(cfg)
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return config
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class CustomNetworkConfig(object):
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def __init__(self, indent=None, contents=None, device_os=None):
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self.indent = indent or 1
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self._config = list()
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self._device_os = device_os
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if contents:
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self.load(contents)
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@property
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def items(self):
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return self._config
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@property
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def lines(self):
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lines = list()
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for item, next_item in get_next(self.items):
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if next_item is None:
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lines.append(item.line)
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elif not next_item.line.startswith(item.line):
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lines.append(item.line)
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return lines
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def __str__(self):
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text = ''
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for item in self.items:
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if not item.parents:
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expand = self.get_section(item.text)
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text += '%s\n' % self.get_section(item.text)
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return str(text).strip()
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def load(self, contents):
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self._config = parse(contents, indent=self.indent)
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def load_from_file(self, filename):
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self.load(open(filename).read())
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def get(self, path):
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if isinstance(path, basestring):
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path = [path]
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for item in self._config:
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if item.text == path[-1]:
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parents = [p.text for p in item.parents]
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if parents == path[:-1]:
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return item
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def search(self, regexp, path=None):
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regex = re.compile(r'^%s' % regexp, re.M)
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if path:
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parent = self.get(path)
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if not parent or not parent.children:
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return
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children = [c.text for c in parent.children]
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data = '\n'.join(children)
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else:
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data = str(self)
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match = regex.search(data)
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if match:
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if match.groups():
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values = match.groupdict().values()
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groups = list(set(match.groups()).difference(values))
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return (groups, match.groupdict())
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else:
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return match.group()
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def findall(self, regexp):
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regexp = r'%s' % regexp
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return re.findall(regexp, str(self))
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def expand(self, obj, items):
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block = [item.raw for item in obj.parents]
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block.append(obj.raw)
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current_level = items
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for b in block:
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if b not in current_level:
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current_level[b] = collections.OrderedDict()
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current_level = current_level[b]
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for c in obj.children:
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if c.raw not in current_level:
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current_level[c.raw] = collections.OrderedDict()
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def to_lines(self, section):
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lines = list()
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for entry in section[1:]:
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line = ['set']
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line.extend([p.text for p in entry.parents])
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line.append(entry.text)
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lines.append(' '.join(line))
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return lines
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def to_block(self, section):
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return '\n'.join([item.raw for item in section])
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def get_section(self, path):
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try:
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section = self.get_section_objects(path)
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if self._device_os == 'junos':
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return self.to_lines(section)
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return self.to_block(section)
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except ValueError:
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return list()
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def get_section_objects(self, path):
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if not isinstance(path, list):
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path = [path]
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obj = self.get_object(path)
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if not obj:
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raise ValueError('path does not exist in config')
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return self.expand_section(obj)
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def expand_section(self, configobj, S=None):
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if S is None:
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S = list()
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S.append(configobj)
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for child in configobj.children:
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if child in S:
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continue
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self.expand_section(child, S)
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return S
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def flatten(self, data, obj=None):
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if obj is None:
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obj = list()
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for k, v in data.items():
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obj.append(k)
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self.flatten(v, obj)
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return obj
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def get_object(self, path):
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for item in self.items:
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if item.text == path[-1]:
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parents = [p.text for p in item.parents]
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if parents == path[:-1]:
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return item
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def get_children(self, path):
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obj = self.get_object(path)
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if obj:
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return obj.children
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def difference(self, other, path=None, match='line', replace='line'):
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updates = list()
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config = self.items
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if path:
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config = self.get_children(path) or list()
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if match == 'line':
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for item in config:
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if item not in other.items:
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updates.append(item)
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elif match == 'strict':
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if path:
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current = other.get_children(path) or list()
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else:
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current = other.items
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for index, item in enumerate(config):
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try:
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if item != current[index]:
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updates.append(item)
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except IndexError:
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updates.append(item)
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elif match == 'exact':
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if path:
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current = other.get_children(path) or list()
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else:
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current = other.items
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if len(current) != len(config):
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updates.extend(config)
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else:
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for ours, theirs in itertools.izip(config, current):
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if ours != theirs:
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updates.extend(config)
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break
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if self._device_os == 'junos':
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return updates
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diffs = collections.OrderedDict()
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for update in updates:
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if replace == 'block' and update.parents:
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update = update.parents[-1]
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self.expand(update, diffs)
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return self.flatten(diffs)
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def replace(self, replace, text=None, regex=None, parents=None,
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add_if_missing=False, ignore_whitespace=False):
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match = None
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parents = parents or list()
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if text is None and regex is None:
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raise ValueError('missing required arguments')
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if not regex:
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regex = ['^%s$' % text]
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patterns = [re.compile(r, re.I) for r in to_list(regex)]
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for item in self.items:
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for regexp in patterns:
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if ignore_whitespace is True:
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string = item.text
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else:
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string = item.raw
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if regexp.search(item.text):
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if item.text != replace:
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if parents == [p.text for p in item.parents]:
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match = item
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break
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if match:
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match.text = replace
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indent = len(match.raw) - len(match.raw.lstrip())
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match.raw = replace.rjust(len(replace) + indent)
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elif add_if_missing:
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self.add(replace, parents=parents)
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def add(self, lines, parents=None):
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"""Adds one or lines of configuration
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"""
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ancestors = list()
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offset = 0
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obj = None
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## global config command
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if not parents:
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for line in to_list(lines):
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item = ConfigLine(line)
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item.raw = line
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if item not in self.items:
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self.items.append(item)
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else:
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for index, p in enumerate(parents):
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try:
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i = index + 1
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obj = self.get_section_objects(parents[:i])[0]
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ancestors.append(obj)
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except ValueError:
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# add parent to config
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offset = index * self.indent
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obj = ConfigLine(p)
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obj.raw = p.rjust(len(p) + offset)
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if ancestors:
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obj.parents = list(ancestors)
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ancestors[-1].children.append(obj)
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self.items.append(obj)
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ancestors.append(obj)
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# add child objects
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for line in to_list(lines):
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# check if child already exists
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for child in ancestors[-1].children:
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if child.text == line:
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break
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else:
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offset = len(parents) * self.indent
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item = ConfigLine(line)
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item.raw = line.rjust(len(line) + offset)
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item.parents = ancestors
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ancestors[-1].children.append(item)
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self.items.append(item)
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def argument_spec():
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return dict(
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# config options
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running_config=dict(aliases=['config']),
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save_config=dict(type='bool', default=False, aliases=['save'])
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)
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nxos_argument_spec = argument_spec()
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def get_config(module):
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config = module.params['running_config']
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if not config:
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config = module.get_config()
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return CustomNetworkConfig(indent=2, contents=config)
|
|
|
|
def load_config(module, candidate):
|
|
config = get_config(module)
|
|
|
|
commands = candidate.difference(config)
|
|
commands = [str(c).strip() for c in commands]
|
|
|
|
save_config = module.params['save_config']
|
|
|
|
result = dict(changed=False)
|
|
|
|
if commands:
|
|
if not module.check_mode:
|
|
module.configure(commands)
|
|
if save_config:
|
|
module.config.save_config()
|
|
|
|
result['changed'] = True
|
|
result['updates'] = commands
|
|
|
|
return result
|
|
# END OF COMMON CODE
|
|
|
|
PARAM_TO_COMMAND_KEYMAP = {
|
|
'router_id': 'router-id',
|
|
'default_metric': 'default-metric',
|
|
'log_adjacency': 'log-adjacency-changes',
|
|
'timer_throttle_lsa_start': 'timers throttle lsa',
|
|
'timer_throttle_lsa_max': 'timers throttle lsa',
|
|
'timer_throttle_lsa_hold': 'timers throttle lsa',
|
|
'timer_throttle_spf_max': 'timers throttle spf',
|
|
'timer_throttle_spf_start': 'timers throttle spf',
|
|
'timer_throttle_spf_hold': 'timers throttle spf',
|
|
'auto_cost': 'auto-cost reference-bandwidth'
|
|
}
|
|
PARAM_TO_DEFAULT_KEYMAP = {
|
|
'timer_throttle_lsa_start': '0',
|
|
'timer_throttle_lsa_max': '5000',
|
|
'timer_throttle_lsa_hold': '5000',
|
|
'timer_throttle_spf_start': '200',
|
|
'timer_throttle_spf_max': '5000',
|
|
'timer_throttle_spf_hold': '1000',
|
|
'auto_cost': '40000'
|
|
}
|
|
|
|
|
|
def invoke(name, *args, **kwargs):
|
|
func = globals().get(name)
|
|
if func:
|
|
return func(*args, **kwargs)
|
|
|
|
|
|
def get_value(arg, config, module):
|
|
REGEX = re.compile(r'(?:{0}\s)(?P<value>.*)$'.format(PARAM_TO_COMMAND_KEYMAP[arg]), re.M)
|
|
value = ''
|
|
|
|
if PARAM_TO_COMMAND_KEYMAP[arg] in config:
|
|
if arg == 'log_adjacency':
|
|
if 'log-adjacency-changes detail' in config:
|
|
value = 'detail'
|
|
else:
|
|
value = 'log'
|
|
else:
|
|
value_list = REGEX.search(config).group('value').split()
|
|
if 'hold' in arg:
|
|
value = value_list[1]
|
|
elif 'max' in arg:
|
|
value = value_list[2]
|
|
elif 'auto' in arg:
|
|
if 'Gbps' in value_list:
|
|
value = str(int(value_list[0]) * 1000)
|
|
else:
|
|
value = value_list[0]
|
|
else:
|
|
value = value_list[0]
|
|
return value
|
|
|
|
|
|
def get_existing(module, args):
|
|
existing = {}
|
|
netcfg = get_config(module)
|
|
parents = ['router ospf {0}'.format(module.params['ospf'])]
|
|
|
|
if module.params['vrf'] != 'default':
|
|
parents.append('vrf {0}'.format(module.params['vrf']))
|
|
|
|
config = netcfg.get_section(parents)
|
|
if config:
|
|
if module.params['vrf'] == 'default':
|
|
splitted_config = config.splitlines()
|
|
vrf_index = False
|
|
for index in range(0, len(splitted_config) - 1):
|
|
if 'vrf' in splitted_config[index].strip():
|
|
vrf_index = index
|
|
break
|
|
if vrf_index:
|
|
config = '\n'.join(splitted_config[0:vrf_index])
|
|
|
|
for arg in args:
|
|
if arg not in ['ospf', 'vrf']:
|
|
existing[arg] = get_value(arg, config, module)
|
|
|
|
existing['vrf'] = module.params['vrf']
|
|
existing['ospf'] = module.params['ospf']
|
|
|
|
return existing
|
|
|
|
|
|
def apply_key_map(key_map, table):
|
|
new_dict = {}
|
|
for key, value in table.items():
|
|
new_key = key_map.get(key)
|
|
if new_key:
|
|
value = table.get(key)
|
|
if value:
|
|
new_dict[new_key] = value
|
|
else:
|
|
new_dict[new_key] = value
|
|
return new_dict
|
|
|
|
|
|
def state_present(module, existing, proposed, candidate):
|
|
commands = list()
|
|
proposed_commands = apply_key_map(PARAM_TO_COMMAND_KEYMAP, proposed)
|
|
existing_commands = apply_key_map(PARAM_TO_COMMAND_KEYMAP, existing)
|
|
|
|
for key, value in proposed_commands.iteritems():
|
|
if value is True:
|
|
commands.append(key)
|
|
|
|
elif value is False:
|
|
commands.append('no {0}'.format(key))
|
|
|
|
elif value == 'default':
|
|
if existing_commands.get(key):
|
|
existing_value = existing_commands.get(key)
|
|
commands.append('no {0} {1}'.format(key, existing_value))
|
|
else:
|
|
if key == 'timers throttle lsa':
|
|
command = '{0} {1} {2} {3}'.format(
|
|
key,
|
|
proposed['timer_throttle_lsa_start'],
|
|
proposed['timer_throttle_lsa_hold'],
|
|
proposed['timer_throttle_lsa_max'])
|
|
elif key == 'timers throttle spf':
|
|
command = '{0} {1} {2} {3}'.format(
|
|
key,
|
|
proposed['timer_throttle_spf_start'],
|
|
proposed['timer_throttle_spf_hold'],
|
|
proposed['timer_throttle_spf_max'])
|
|
elif key == 'log-adjacency-changes':
|
|
if value == 'log':
|
|
command = key
|
|
elif value == 'detail':
|
|
command = '{0} {1}'.format(key, value)
|
|
elif key == 'auto-cost reference-bandwidth':
|
|
if len(value) < 5:
|
|
command = '{0} {1} Mbps'.format(key, value)
|
|
else:
|
|
value = str(int(value) / 1000)
|
|
command = '{0} {1} Gbps'.format(key, value)
|
|
else:
|
|
command = '{0} {1}'.format(key, value.lower())
|
|
|
|
if command not in commands:
|
|
commands.append(command)
|
|
|
|
if commands:
|
|
parents = ['router ospf {0}'.format(module.params['ospf'])]
|
|
if module.params['vrf'] != 'default':
|
|
parents.append('vrf {0}'.format(module.params['vrf']))
|
|
|
|
candidate.add(commands, parents=parents)
|
|
|
|
|
|
def state_absent(module, existing, proposed, candidate):
|
|
commands = []
|
|
parents = ['router ospf {0}'.format(module.params['ospf'])]
|
|
if module.params['vrf'] == 'default':
|
|
existing_commands = apply_key_map(PARAM_TO_COMMAND_KEYMAP, existing)
|
|
for key, value in existing_commands.iteritems():
|
|
if value:
|
|
if key == 'timers throttle lsa':
|
|
command = 'no {0} {1} {2} {3}'.format(
|
|
key,
|
|
existing['timer_throttle_lsa_start'],
|
|
existing['timer_throttle_lsa_hold'],
|
|
existing['timer_throttle_lsa_max'])
|
|
elif key == 'timers throttle spf':
|
|
command = 'no {0} {1} {2} {3}'.format(
|
|
key,
|
|
existing['timer_throttle_spf_start'],
|
|
existing['timer_throttle_spf_hold'],
|
|
existing['timer_throttle_spf_max'])
|
|
else:
|
|
existing_value = existing_commands.get(key)
|
|
command = 'no {0} {1}'.format(key, existing_value)
|
|
|
|
if command not in commands:
|
|
commands.append(command)
|
|
else:
|
|
commands = ['no vrf {0}'.format(module.params['vrf'])]
|
|
candidate.add(commands, parents=parents)
|
|
|
|
|
|
def main():
|
|
argument_spec = dict(
|
|
vrf=dict(required=False, type='str', default='default'),
|
|
ospf=dict(required=True, type='str'),
|
|
router_id=dict(required=False, type='str'),
|
|
default_metric=dict(required=False, type='str'),
|
|
log_adjacency=dict(required=False, type='str',
|
|
choices=['log', 'detail', 'default']),
|
|
timer_throttle_lsa_start=dict(required=False, type='str'),
|
|
timer_throttle_lsa_hold=dict(required=False, type='str'),
|
|
timer_throttle_lsa_max=dict(required=False, type='str'),
|
|
timer_throttle_spf_start=dict(required=False, type='str'),
|
|
timer_throttle_spf_hold=dict(required=False, type='str'),
|
|
timer_throttle_spf_max=dict(required=False, type='str'),
|
|
auto_cost=dict(required=False, type='str'),
|
|
m_facts=dict(required=False, default=False, type='bool'),
|
|
state=dict(choices=['present', 'absent'], default='present',
|
|
required=False),
|
|
include_defaults=dict(default=True)
|
|
)
|
|
argument_spec.update(nxos_argument_spec)
|
|
module = get_module(argument_spec=argument_spec,
|
|
supports_check_mode=True)
|
|
|
|
state = module.params['state']
|
|
args = [
|
|
'vrf',
|
|
'ospf',
|
|
'router_id',
|
|
'default_metric',
|
|
'log_adjacency',
|
|
'timer_throttle_lsa_start',
|
|
'timer_throttle_lsa_hold',
|
|
'timer_throttle_lsa_max',
|
|
'timer_throttle_spf_start',
|
|
'timer_throttle_spf_hold',
|
|
'timer_throttle_spf_max',
|
|
'auto_cost'
|
|
]
|
|
|
|
existing = invoke('get_existing', module, args)
|
|
end_state = existing
|
|
proposed_args = dict((k, v) for k, v in module.params.iteritems()
|
|
if v is not None and k in args)
|
|
|
|
proposed = {}
|
|
for key, value in proposed_args.iteritems():
|
|
if key != 'interface':
|
|
if str(value).lower() == 'true':
|
|
value = True
|
|
elif str(value).lower() == 'false':
|
|
value = False
|
|
elif str(value).lower() == 'default':
|
|
value = PARAM_TO_DEFAULT_KEYMAP.get(key)
|
|
if value is None:
|
|
value = 'default'
|
|
if existing.get(key) or (not existing.get(key) and value):
|
|
proposed[key] = value
|
|
|
|
result = {}
|
|
if state == 'present' or (state == 'absent' and existing):
|
|
candidate = CustomNetworkConfig(indent=3)
|
|
invoke('state_%s' % state, module, existing, proposed, candidate)
|
|
|
|
try:
|
|
response = load_config(module, candidate)
|
|
result.update(response)
|
|
except ShellError:
|
|
exc = get_exception()
|
|
module.fail_json(msg=str(exc))
|
|
else:
|
|
result['updates'] = []
|
|
|
|
result['connected'] = module.connected
|
|
if module.params['m_facts']:
|
|
end_state = invoke('get_existing', module, args)
|
|
result['end_state'] = end_state
|
|
result['existing'] = existing
|
|
result['proposed'] = proposed_args
|
|
|
|
module.exit_json(**result)
|
|
|
|
|
|
from ansible.module_utils.basic import *
|
|
from ansible.module_utils.urls import *
|
|
from ansible.module_utils.shell import *
|
|
from ansible.module_utils.netcfg import *
|
|
from ansible.module_utils.nxos import *
|
|
|
|
if __name__ == '__main__':
|
|
main()
|