382 lines
14 KiB
Python
382 lines
14 KiB
Python
#! /usr/bin/env python
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"""
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This is the MoltenIron client class that speaks to a MoltenIron server.
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"""
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# Copyright (c) 2016 IBM Corporation.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# pylint: disable-msg=C0103
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# pylint: disable=redefined-outer-name
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import argparse
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import json
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import sys
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if sys.version_info >= (3, 0):
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import http.client # noqa
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else:
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import httplib # noqa
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# Create a decorator pattern that maintains a registry
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def makeRegistrar():
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"""Decorator that keeps track of tagged functions."""
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registry = {}
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def registrar(func):
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"""Store the function pointer."""
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registry[func.__name__] = func
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# normally a decorator returns a wrapped function,
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# but here we return func unmodified, after registering it
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return func
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registrar.all = registry
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return registrar
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# Create the decorator
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command = makeRegistrar()
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class MoltenIron(object):
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"""This is the MoltenIron client object."""
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def __init__(self):
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self.conf = None
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self.parser = None
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self.request = None
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self.response_str = None
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self.response_json = None
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def setup_conf(self, _conf):
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"""Sets the class variable to what is passed in."""
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self.conf = _conf
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def setup_parser(self, _parser):
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"""Sets the class variable to what is passed in."""
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self.parser = _parser
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def call_function(self, args):
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"""Calls the function supplied on the server."""
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if self.request is not None:
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return False
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# Save the previously defined function pointer
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func = args['func']
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# But delete the class function pointer. json can't serialize it!
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del args['func']
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# Call the function specified on the command line!
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self.request = func(args=args)
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# Send the request and print the response
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self.response_str = self.send(self.request)
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self.response_json = json.loads(self.response_str)
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return True
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def send(self, request):
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"""Send the generated request"""
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ip = str(self.conf['serverIP'])
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port = int(self.conf['mi_port'])
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if sys.version_info > (3, 0):
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connection = http.client.HTTPConnection(ip, port) # noqa
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else:
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connection = httplib.HTTPConnection(ip, port) # noqa
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connection.request('POST', '/', json.dumps(request))
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response = connection.getresponse()
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data = response.read()
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if sys.version_info > (3, 0):
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# We actually receive bytes instead of a string!
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data = data.decode("utf-8")
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return data
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def get_response(self):
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"""Returns the response from the server"""
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if self.request is None:
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raise Exception("Call call_function first")
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return self.response_str
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def get_response_map(self):
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"""Returns the response map from the server"""
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if self.request is None:
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raise Exception("Call call_function first")
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return self.response_json
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@command
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def add_baremetal(self, args=None, subparsers=None):
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"""Add a node to the MoltenIron database.
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All parameters are manditory.
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"""
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if subparsers is not None:
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sp = subparsers.add_parser("add_baremetal",
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help="Add a node to the MoltenIron"
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" database.")
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sp.add_argument("name",
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help="Name of the baremetal node")
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sp.add_argument("ipmi_ip",
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help="IP for issuing IPMI commands to"
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" this node")
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sp.add_argument("ipmi_user",
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help="IPMI username used when issuing"
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" IPMI commands to this node")
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sp.add_argument("ipmi_password",
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help="IPMI password used when"
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" issuing IPMI commands to this node")
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sp.add_argument("allocation_pool",
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help="Comma separated list of"
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" IPs to be used in deployment")
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sp.add_argument("port_hwaddr",
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help="MAC address of port on"
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" machine to use during deployment")
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sp.add_argument("cpu_arch",
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help="Architecture of the node")
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sp.add_argument("cpus",
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type=int,
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help="Number of CPUs on the node")
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sp.add_argument("ram_mb",
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type=int,
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help="Amount of RAM (in MiB)"
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" that the node has")
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sp.add_argument("disk_gb",
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type=int,
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help="Amount of disk (in GiB)"
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" that the node has")
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sp.add_argument("node_pool",
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type=str,
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default="default",
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nargs='?',
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help="Node pool name")
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sp.set_defaults(func=self.add_baremetal)
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return
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args['method'] = 'add_baremetal'
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return args
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@command
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def add_keyvalue_pairs(self, args=None, subparsers=None):
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"""Add a node to the MoltenIron database.
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args are a list of key=value pairs.
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"""
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if subparsers is not None:
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sp = subparsers.add_parser("add_keyvalue_pairs",
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help="Add a node to the MoltenIron"
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" database.")
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sp.add_argument("name",
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help="Name of the baremetal node")
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sp.add_argument("ipmi_ip",
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help="IP for issuing IPMI commands to"
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" this node")
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sp.add_argument("allocation_pool",
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help="Comma separated list of"
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" IPs to be used in deployment")
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sp.add_argument("args",
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nargs=argparse.REMAINDER,
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help="Architecture of the node")
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sp.add_argument("node_pool",
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type=str,
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default="default",
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nargs='?',
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help="Node pool name")
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sp.set_defaults(func=self.add_keyvalue_pairs)
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return
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args['method'] = 'add_keyvalue_pairs'
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return args
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@command
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def add_json_blob(self, args=None, subparsers=None):
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"""Add a node to the MoltenIron database.
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blob is a JSON encoded string.
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"""
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if subparsers is not None:
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sp = subparsers.add_parser("add_json_blob",
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help="Add a node to the MoltenIron"
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" database.")
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sp.add_argument("name",
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help="Name of the baremetal node")
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sp.add_argument("ipmi_ip",
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help="IP for issuing IPMI commands to"
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" this node")
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sp.add_argument("allocation_pool",
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help="Comma separated list of"
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" IPs to be used in deployment")
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sp.add_argument("blob",
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help="JSON encoded string")
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sp.add_argument("node_pool",
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type=str,
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default="default",
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nargs='?',
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help="Node pool name")
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sp.set_defaults(func=self.add_json_blob)
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return
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args['method'] = 'add_json_blob'
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return args
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@command
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def allocate(self, args=None, subparsers=None):
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"""Checkout a node from the MoltenIron database"""
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if subparsers is not None:
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sp = subparsers.add_parser("allocate",
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help="Checkout a node in MoltenIron."
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" Returns the node's info.")
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sp.add_argument("owner_name",
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help="Name of the requester")
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sp.add_argument("number_of_nodes",
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type=int,
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help="How many nodes to reserve")
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sp.add_argument("node_pool",
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type=str,
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default="default",
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nargs='?',
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help="Node pool name")
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sp.set_defaults(func=self.allocate)
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return
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args['method'] = 'allocate'
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return args
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@command
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def release(self, args=None, subparsers=None):
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"""Release an allocated node from the MoltenIron database."""
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if subparsers is not None:
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sp = subparsers.add_parser("release",
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help="Given an owner name, release the"
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" allocated node, returning it to"
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" the available state.")
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sp.add_argument("owner_name",
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help="Name of the owner who"
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" currently owns the nodes to be released")
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sp.set_defaults(func=self.release)
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return
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args['method'] = 'release'
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return args
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@command
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def get_field(self, args=None, subparsers=None):
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"""Return a field of data from an owned node from the MoltenIron db."""
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if subparsers is not None:
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sp = subparsers.add_parser("get_field",
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help="Given an owner name and the name"
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" of a field, get the value of"
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" the field.")
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sp.add_argument("owner_name",
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help="Name of the owner who currently"
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" owns the nodes to get the field from")
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sp.add_argument("field_name",
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help="Name of the field to retrieve"
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" the value from")
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sp.set_defaults(func=self.get_field)
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return
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args['method'] = 'get_field'
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return args
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@command
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def set_field(self, args=None, subparsers=None):
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"""Set a field of data from an id in the MoltenIron database."""
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if subparsers is not None:
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sp = subparsers.add_parser("set_field",
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help="Given an id, set a field with a"
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" value.")
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sp.add_argument("id",
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help="Id of the entry")
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sp.add_argument("key",
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help="Field name to set")
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sp.add_argument("value",
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help="Field value to set")
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sp.add_argument("type",
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help="Field Python type to set")
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sp.set_defaults(func=self.set_field)
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return
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args['method'] = 'set_field'
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return args
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@command
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def status(self, args=None, subparsers=None):
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"""Return the nodes as a status"""
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if subparsers is not None:
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sp = subparsers.add_parser("status",
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help="Return a list of current"
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" MoltenIron Node database"
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" entries.")
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sp.add_argument("-t",
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"--type",
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action="store",
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type=str,
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default="human",
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dest="type",
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help="Either human (the default) or csv")
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sp.set_defaults(func=self.status)
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return
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args['method'] = 'status'
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return args
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@command
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def status_baremetal(self, args=None, subparsers=None):
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"""Return the nodes as a status"""
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if subparsers is not None:
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sp = subparsers.add_parser("status_baremetal",
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help="Return a list of current"
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" MoltenIron Node database"
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" entries.")
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sp.add_argument("-t",
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"--type",
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action="store",
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type=str,
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default="human",
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dest="type",
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help="Either human (the default) or csv")
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sp.set_defaults(func=self.status_baremetal)
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return
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args['method'] = 'status_baremetal'
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return args
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@command
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def delete_db(self, args=None, subparsers=None):
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"""Delete all database entries"""
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if subparsers is not None:
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sp = subparsers.add_parser("delete_db",
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help="Delete every entry in the"
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" MoltenIron Node database.")
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sp.set_defaults(func=self.delete_db)
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return
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args['method'] = 'delete_db'
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return args
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