399 lines
13 KiB
Python
Executable File
399 lines
13 KiB
Python
Executable File
#! /usr/bin/env python
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"""
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This is the MoltenIron Command Line client that speaks to
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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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from __future__ import print_function
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import argparse
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import json
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import os
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import sys
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import yaml
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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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DEBUG = False
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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.argv = 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_argv(self, _argv):
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"""Sets the class variable to what is passed in. """
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self.argv = _argv
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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 _setup_response(self):
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""" """
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if self.request is not None:
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return
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# Call the function specified on the command line!
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self.request = self.argv.func()
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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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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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return response.read()
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def get_response(self):
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"""Returns the response from the server """
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self._setup_response()
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return self.response_str
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def get_response_map(self):
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"""Returns the response from the server """
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self._setup_response()
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return self.response_json
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@command
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def add(self, subparsers=None):
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"""Generate a request to add a node to the MoltenIron database """
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if subparsers is not None:
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sp = subparsers.add_parser("add",
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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.set_defaults(func=self.add)
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return
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# Make a map of our arguments
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request = vars(self.argv)
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# But delete the class function pointer. json can't serialize it!
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del request['func']
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request['method'] = 'add'
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return request
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@command
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def allocate(self, subparsers=None):
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"""Generate request to 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.set_defaults(func=self.allocate)
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return
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# Make a map of our arguments
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request = vars(self.argv)
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# But delete the class function pointer. json can't serialize it!
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del request['func']
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request['method'] = 'allocate'
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return request
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@command
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def release(self, subparsers=None):
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"""Generate a request to release an allocated node from the MoltenIron
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database
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"""
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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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# Make a map of our arguments
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request = vars(self.argv)
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# But delete the class function pointer. json can't serialize it!
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del request['func']
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request['method'] = 'release'
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return request
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@command
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def get_field(self, subparsers=None):
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"""Generate a request to return a field of data from an owned node from
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the MoltenIron database
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"""
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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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# Make a map of our arguments
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request = vars(self.argv)
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# But delete the class function pointer. json can't serialize it!
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del request['func']
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request['method'] = 'get_field'
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return request
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@command
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def set_field(self, subparsers=None):
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"""Generate request to set a field of data from an id in the MoltenIron
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database
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"""
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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.set_defaults(func=self.set_field)
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return
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# Make a map of our arguments
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request = vars(self.argv)
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# But delete the class function pointer. json can't serialize it!
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del request['func']
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request['method'] = 'set_field'
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return request
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@command
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def status(self, subparsers=None):
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"""Return 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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# Make a map of our arguments
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request = vars(self.argv)
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# But delete the class function pointer. json can't serialize it!
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del request['func']
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request['method'] = 'status'
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return request
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@command
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def delete_db(self, 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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# Make a map of our arguments
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request = vars(self.argv)
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# But delete the class function pointer. json can't serialize it!
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del request['func']
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request['method'] = 'delete_db'
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return request
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if __name__ == "__main__":
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mi = MoltenIron()
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parser = argparse.ArgumentParser(description="Molteniron CLI tool")
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parser.add_argument("-c",
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"--conf-dir",
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action="store",
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type=str,
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dest="conf_dir",
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help="The directory where configuration is stored")
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parser.add_argument("-o",
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"--output",
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action="store",
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type=str,
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default="json",
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dest="output",
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help="The output should be json (the default)"
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" or result (only the result string)")
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subparsers = parser.add_subparsers(help="sub-command help")
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# Register all decorated class functions by telling them argparse
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# is running
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for (cmd_name, cmd_func) in list(command.all.items()):
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func = getattr(mi, cmd_name)
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func(subparsers) # Tell the function to setup for argparse
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args = parser.parse_args()
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output = args.output.upper().lower()
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if output == "json":
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pass
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elif output == "result":
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pass
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else:
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parser.error("Unknown output type %s" % (output, ))
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if args.conf_dir:
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if not os.path.isdir(args.conf_dir):
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msg = "Error: %s is not a valid directory" % (args.conf_dir, )
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print(msg, file=sys.stderr)
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sys.exit(1)
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yaml_file = os.path.realpath("%s/conf.yaml" % (args.conf_dir, ))
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else:
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yaml_file = "/usr/local/etc/molteniron/conf.yaml"
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with open(yaml_file, "r") as fobj:
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conf = yaml.load(fobj)
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mi.setup_conf(conf)
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mi.setup_argv(args)
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mi.setup_parser(parser)
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ret = mi.get_response()
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json_ret = json.loads(ret)
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if output == "json":
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print(json_ret)
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elif output == "result":
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print(json_ret["result"])
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try:
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rc = mi.get_response_map()['status']
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except KeyError:
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print("Error: Server returned: %s" % (mi.get_response_map(),))
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rc = 444
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if rc == 200:
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exit(0)
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else:
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exit(rc)
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