604 lines
19 KiB
Python
604 lines
19 KiB
Python
import json
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import pynetbox
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import logging
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import argparse
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from uuid import uuid4
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from os.path import join as join_path
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from flask import Flask, request
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from flask_restful import Resource, Api
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from werkzeug.exceptions import HTTPException
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from uncloud.common import counters
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from uncloud.common.vm import VMStatus
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from uncloud.common.request import RequestEntry, RequestType
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from uncloud.common.settings import settings
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from uncloud.shared import shared
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from . import schemas
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from .helper import generate_mac, mac2ipv6
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from uncloud import UncloudException
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logger = logging.getLogger(__name__)
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app = Flask(__name__)
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api = Api(app)
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app.logger.handlers.clear()
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arg_parser = argparse.ArgumentParser('api', add_help=False)
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arg_parser.add_argument('--port', '-p')
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@app.errorhandler(Exception)
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def handle_exception(e):
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app.logger.error(e)
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# pass through HTTP errors
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if isinstance(e, HTTPException):
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return e
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# now you're handling non-HTTP exceptions only
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return {'message': 'Server Error'}, 500
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class CreateVM(Resource):
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"""API Request to Handle Creation of VM"""
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@staticmethod
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def post():
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data = request.json
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validator = schemas.CreateVMSchema(data)
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if validator.is_valid():
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vm_uuid = uuid4().hex
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vm_key = join_path(settings['etcd']['vm_prefix'], vm_uuid)
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specs = {
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'cpu': validator.specs['cpu'],
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'ram': validator.specs['ram'],
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'os-ssd': validator.specs['os-ssd'],
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'hdd': validator.specs['hdd'],
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}
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macs = [generate_mac() for _ in range(len(data['network']))]
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tap_ids = [
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counters.increment_etcd_counter(
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shared.etcd_client, settings['etcd']['counter']['tap']
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)
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for _ in range(len(data['network']))
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]
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vm_entry = {
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'name': data['vm_name'],
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'owner': data['name'],
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'owner_realm': data['realm'],
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'specs': specs,
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'hostname': '',
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'status': VMStatus.stopped,
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'image_uuid': validator.image_uuid,
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'log': [],
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'vnc_socket': '',
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'network': list(zip(data['network'], macs, tap_ids)),
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'metadata': {'ssh-keys': []},
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'in_migration': False,
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}
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shared.etcd_client.put(vm_key, vm_entry, value_in_json=True)
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# Create ScheduleVM Request
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r = RequestEntry.from_scratch(
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type=RequestType.ScheduleVM,
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uuid=vm_uuid,
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request_prefix=settings['etcd']['request_prefix'],
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)
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shared.request_pool.put(r)
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return {'message': 'VM Creation Queued'}, 200
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return validator.get_errors(), 400
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class VmStatus(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.VMStatusSchema(data)
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if validator.is_valid():
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vm = shared.vm_pool.get(
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join_path(settings['etcd']['vm_prefix'], data['uuid'])
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)
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vm_value = vm.value.copy()
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vm_value['ip'] = []
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for network_mac_and_tap in vm.network:
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network_name, mac, tap = network_mac_and_tap
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network = shared.etcd_client.get(
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join_path(
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settings['etcd']['network_prefix'],
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data['name'],
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network_name,
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),
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value_in_json=True,
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)
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ipv6_addr = (
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network.value.get('ipv6').split('::')[0] + '::'
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)
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vm_value['ip'].append(mac2ipv6(mac, ipv6_addr))
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vm.value = vm_value
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return vm.value
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else:
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return validator.get_errors(), 400
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class CreateImage(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.CreateImageSchema(data)
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if validator.is_valid():
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file_entry = shared.etcd_client.get(
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join_path(settings['etcd']['file_prefix'], data['uuid'])
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)
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file_entry_value = json.loads(file_entry.value)
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image_entry_json = {
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'status': 'TO_BE_CREATED',
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'owner': file_entry_value['owner'],
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'filename': file_entry_value['filename'],
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'name': data['name'],
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'store_name': data['image_store'],
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'visibility': 'public',
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}
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shared.etcd_client.put(
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join_path(
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settings['etcd']['image_prefix'], data['uuid']
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),
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json.dumps(image_entry_json),
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)
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return {'message': 'Image queued for creation.'}
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return validator.get_errors(), 400
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class ListPublicImages(Resource):
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@staticmethod
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def get():
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images = shared.etcd_client.get_prefix(
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settings['etcd']['image_prefix'], value_in_json=True
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)
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r = {'images': []}
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for image in images:
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image_key = '{}:{}'.format(
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image.value['store_name'], image.value['name']
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)
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r['images'].append(
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{'name': image_key, 'status': image.value['status']}
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)
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return r, 200
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class VMAction(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.VmActionSchema(data)
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if validator.is_valid():
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vm_entry = shared.vm_pool.get(
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join_path(settings['etcd']['vm_prefix'], data['uuid'])
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)
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action = data['action']
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if action == 'start':
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action = 'schedule'
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if action == 'delete' and vm_entry.hostname == '':
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if shared.storage_handler.is_vm_image_exists(
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vm_entry.uuid
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):
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r_status = shared.storage_handler.delete_vm_image(
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vm_entry.uuid
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)
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if r_status:
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shared.etcd_client.client.delete(vm_entry.key)
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return {'message': 'VM successfully deleted'}
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else:
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logger.error(
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'Some Error Occurred while deleting VM'
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)
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return {'message': 'VM deletion unsuccessfull'}
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else:
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shared.etcd_client.client.delete(vm_entry.key)
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return {'message': 'VM successfully deleted'}
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r = RequestEntry.from_scratch(
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type='{}VM'.format(action.title()),
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uuid=data['uuid'],
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hostname=vm_entry.hostname,
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request_prefix=settings['etcd']['request_prefix'],
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)
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shared.request_pool.put(r)
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return (
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{'message': 'VM {} Queued'.format(action.title())},
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200,
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)
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else:
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return validator.get_errors(), 400
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class VMMigration(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.VmMigrationSchema(data)
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if validator.is_valid():
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vm = shared.vm_pool.get(data['uuid'])
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r = RequestEntry.from_scratch(
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type=RequestType.InitVMMigration,
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uuid=vm.uuid,
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hostname=join_path(
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settings['etcd']['host_prefix'],
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validator.destination.value,
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),
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request_prefix=settings['etcd']['request_prefix'],
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)
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shared.request_pool.put(r)
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return (
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{'message': 'VM Migration Initialization Queued'},
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200,
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)
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else:
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return validator.get_errors(), 400
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class ListUserVM(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.OTPSchema(data)
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if validator.is_valid():
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vms = shared.etcd_client.get_prefix(
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settings['etcd']['vm_prefix'], value_in_json=True
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)
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return_vms = []
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user_vms = filter(
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lambda v: v.value['owner'] == data['name'], vms
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)
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for vm in user_vms:
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return_vms.append(
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{
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'name': vm.value['name'],
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'vm_uuid': vm.key.split('/')[-1],
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'specs': vm.value['specs'],
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'status': vm.value['status'],
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'hostname': vm.value['hostname'],
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'vnc_socket': vm.value.get('vnc_socket', None),
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}
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)
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if return_vms:
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return {'message': return_vms}, 200
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return {'message': 'No VM found'}, 404
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else:
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return validator.get_errors(), 400
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class ListUserFiles(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.OTPSchema(data)
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if validator.is_valid():
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files = shared.etcd_client.get_prefix(
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settings['etcd']['file_prefix'], value_in_json=True
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)
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return_files = []
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user_files = [f for f in files if f.value['owner'] == data['name']]
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for file in user_files:
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file_uuid = file.key.split('/')[-1]
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file = file.value
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file['uuid'] = file_uuid
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file.pop('sha512sum', None)
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file.pop('owner', None)
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return_files.append(file)
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return {'message': return_files}, 200
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else:
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return validator.get_errors(), 400
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class CreateHost(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.CreateHostSchema(data)
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if validator.is_valid():
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host_key = join_path(
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settings['etcd']['host_prefix'], uuid4().hex
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)
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host_entry = {
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'specs': data['specs'],
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'hostname': data['hostname'],
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'status': 'DEAD',
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'last_heartbeat': '',
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}
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shared.etcd_client.put(
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host_key, host_entry, value_in_json=True
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)
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return {'message': 'Host Created'}, 200
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return validator.get_errors(), 400
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class ListHost(Resource):
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@staticmethod
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def get():
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hosts = shared.host_pool.hosts
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r = {
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host.key: {
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'status': host.status,
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'specs': host.specs,
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'hostname': host.hostname,
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}
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for host in hosts
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}
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return r, 200
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class GetSSHKeys(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.GetSSHSchema(data)
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if validator.is_valid():
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if not validator.key_name.value:
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# {user_prefix}/{realm}/{name}/key/
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etcd_key = join_path(
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settings['etcd']['user_prefix'],
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data['realm'],
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data['name'],
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'key',
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)
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etcd_entry = shared.etcd_client.get_prefix(
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etcd_key, value_in_json=True
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)
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keys = {
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key.key.split('/')[-1]: key.value
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for key in etcd_entry
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}
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return {'keys': keys}
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else:
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# {user_prefix}/{realm}/{name}/key/{key_name}
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etcd_key = join_path(
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settings['etcd']['user_prefix'],
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data['realm'],
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data['name'],
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'key',
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data['key_name'],
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)
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etcd_entry = shared.etcd_client.get(
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etcd_key, value_in_json=True
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)
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if etcd_entry:
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return {
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'keys': {
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etcd_entry.key.split('/')[
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-1
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]: etcd_entry.value
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}
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}
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else:
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return {'keys': {}}
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else:
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return validator.get_errors(), 400
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class AddSSHKey(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.AddSSHSchema(data)
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if validator.is_valid():
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# {user_prefix}/{realm}/{name}/key/{key_name}
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etcd_key = join_path(
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settings['etcd']['user_prefix'],
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data['realm'],
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data['name'],
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'key',
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data['key_name'],
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)
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etcd_entry = shared.etcd_client.get(
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etcd_key, value_in_json=True
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)
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if etcd_entry:
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return {
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'message': 'Key with name "{}" already exists'.format(
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data['key_name']
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)
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}
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else:
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# Key Not Found. It implies user' haven't added any key yet.
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shared.etcd_client.put(
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etcd_key, data['key'], value_in_json=True
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)
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return {'message': 'Key added successfully'}
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else:
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return validator.get_errors(), 400
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class RemoveSSHKey(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.RemoveSSHSchema(data)
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if validator.is_valid():
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# {user_prefix}/{realm}/{name}/key/{key_name}
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etcd_key = join_path(
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settings['etcd']['user_prefix'],
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data['realm'],
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data['name'],
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'key',
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data['key_name'],
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)
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etcd_entry = shared.etcd_client.get(
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etcd_key, value_in_json=True
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)
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if etcd_entry:
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shared.etcd_client.client.delete(etcd_key)
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return {'message': 'Key successfully removed.'}
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else:
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return {
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'message': 'No Key with name "{}" Exists at all.'.format(
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data['key_name']
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)
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}
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else:
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return validator.get_errors(), 400
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class CreateNetwork(Resource):
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@staticmethod
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def post():
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data = request.json
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validator = schemas.CreateNetwork(data)
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if validator.is_valid():
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network_entry = {
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'id': counters.increment_etcd_counter(
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shared.etcd_client, settings['etcd']['counter']['vxlan']
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),
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'type': data['type'],
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}
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if validator.user.value:
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try:
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nb = pynetbox.api(
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url=settings['netbox']['url'],
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token=settings['netbox']['token'],
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)
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nb_prefix = nb.ipam.prefixes.get(
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prefix=settings['network']['prefix']
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)
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prefix = nb_prefix.available_prefixes.create(
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data={
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'prefix_length': int(
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settings['network']['prefix_length']
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),
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'description': '{}\'s network "{}"'.format(
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data['name'], data['network_name']
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),
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'is_pool': True,
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}
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)
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except Exception as err:
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app.logger.error(err)
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return {
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'message': 'Error occured while creating network.'
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}
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else:
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network_entry['ipv6'] = prefix['prefix']
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else:
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network_entry['ipv6'] = 'fd00::/64'
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network_key = join_path(
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settings['etcd']['network_prefix'],
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data['name'],
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data['network_name'],
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)
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shared.etcd_client.put(
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network_key, network_entry, value_in_json=True
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)
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return {'message': 'Network successfully added.'}
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else:
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return validator.get_errors(), 400
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|
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class ListUserNetwork(Resource):
|
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@staticmethod
|
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def post():
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data = request.json
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validator = schemas.OTPSchema(data)
|
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|
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if validator.is_valid():
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prefix = join_path(
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settings['etcd']['network_prefix'], data['name']
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)
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networks = shared.etcd_client.get_prefix(
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prefix, value_in_json=True
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)
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user_networks = []
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for net in networks:
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net.value['name'] = net.key.split('/')[-1]
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user_networks.append(net.value)
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return {'networks': user_networks}, 200
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else:
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return validator.get_errors(), 400
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api.add_resource(CreateVM, '/vm/create')
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api.add_resource(VmStatus, '/vm/status')
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api.add_resource(VMAction, '/vm/action')
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api.add_resource(VMMigration, '/vm/migrate')
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api.add_resource(CreateImage, '/image/create')
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api.add_resource(ListPublicImages, '/image/list-public')
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api.add_resource(ListUserVM, '/user/vms')
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api.add_resource(ListUserFiles, '/user/files')
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api.add_resource(ListUserNetwork, '/user/networks')
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api.add_resource(AddSSHKey, '/user/add-ssh')
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api.add_resource(RemoveSSHKey, '/user/remove-ssh')
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api.add_resource(GetSSHKeys, '/user/get-ssh')
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api.add_resource(CreateHost, '/host/create')
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api.add_resource(ListHost, '/host/list')
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api.add_resource(CreateNetwork, '/network/create')
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def main(debug=False, port=None):
|
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try:
|
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image_stores = list(
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shared.etcd_client.get_prefix(
|
|
settings['etcd']['image_store_prefix'], value_in_json=True
|
|
)
|
|
)
|
|
except KeyError:
|
|
image_stores = False
|
|
|
|
# Do not inject default values that might be very wrong
|
|
# fail when required, not before
|
|
#
|
|
# if not image_stores:
|
|
# data = {
|
|
# 'is_public': True,
|
|
# 'type': 'ceph',
|
|
# 'name': 'images',
|
|
# 'description': 'first ever public image-store',
|
|
# 'attributes': {'list': [], 'key': [], 'pool': 'images'},
|
|
# }
|
|
|
|
# shared.etcd_client.put(
|
|
# join_path(
|
|
# settings['etcd']['image_store_prefix'], uuid4().hex
|
|
# ),
|
|
# json.dumps(data),
|
|
# )
|
|
|
|
try:
|
|
app.run(host='::',
|
|
port=port,
|
|
debug=debug)
|
|
except OSError as e:
|
|
raise UncloudException('Failed to start Flask: {}'.format(e))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|