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#!/usr/bin/env python |
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# Copyright 2011 GRNET S.A. All rights reserved. |
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# |
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# Redistribution and use in source and binary forms, with or |
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# without modification, are permitted provided that the following |
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# conditions are met: |
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# |
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# 1. Redistributions of source code must retain the above |
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# copyright notice, this list of conditions and the following |
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# disclaimer. |
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# |
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# 2. Redistributions in binary form must reproduce the above |
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# copyright notice, this list of conditions and the following |
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# disclaimer in the documentation and/or other materials |
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# provided with the distribution. |
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# |
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS |
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR |
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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# POSSIBILITY OF SUCH DAMAGE. |
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# |
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# The views and conclusions contained in the software and |
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# documentation are those of the authors and should not be |
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# interpreted as representing official policies, either expressed |
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# or implied, of GRNET S.A. |
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from django.core.management import setup_environ |
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try: |
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from synnefo import settings |
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except ImportError: |
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raise Exception("Cannot import settings, make sure PYTHONPATH contains " |
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"the parent directory of the Synnefo Django project.") |
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setup_environ(settings) |
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|
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import inspect |
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import logging |
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import sys |
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|
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from collections import defaultdict |
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from optparse import OptionParser |
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from os.path import basename |
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|
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from synnefo.db import models |
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|
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|
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def get_user(uid): |
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try: |
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uid = int(uid) |
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return models.SynnefoUser.objects.get(id=uid) |
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servers = servers.filter(owner=user) |
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except ValueError: |
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return None |
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except models.SynnefoUser.DoesNotExist: |
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return None |
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|
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def print_dict(d, exclude=()): |
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if not d: |
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return |
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margin = max(len(key) for key in d) + 1 |
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|
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for key, val in sorted(d.items()): |
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if key in exclude or key.startswith('_'): |
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continue |
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print '%s: %s' % (key.rjust(margin), val) |
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|
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def print_items(items, detail=False): |
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for item in items: |
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print '%d %s' % (item.id, item.name) |
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if detail: |
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print_dict(item.__dict__, exclude=('id', 'name')) |
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|
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|
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|
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class Command(object): |
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group = '<group>' |
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name = '<command>' |
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syntax = '' |
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description = '' |
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|
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def __init__(self, exe, argv): |
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parser = OptionParser() |
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syntax = '%s [options]' % self.syntax if self.syntax else '[options]' |
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parser.usage = '%s %s %s' % (exe, self.name, syntax) |
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parser.description = self.description |
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self.add_options(parser) |
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options, self.args = parser.parse_args(argv) |
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|
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# Add options to self |
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for opt in parser.option_list: |
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key = opt.dest |
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if key: |
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val = getattr(options, key) |
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setattr(self, key, val) |
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|
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ch = logging.StreamHandler() |
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ch.setFormatter(logging.Formatter('%(message)s')) |
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logger = logging.getLogger() |
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logger.addHandler(ch) |
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level = logging.WARNING |
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logger.setLevel(level) |
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|
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self.parser = parser |
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|
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def add_options(self, parser): |
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pass |
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|
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def execute(self): |
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try: |
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self.main(*self.args) |
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except TypeError: |
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self.parser.print_help() |
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|
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|
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class ListServers(Command): |
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group = 'server' |
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name = 'list' |
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syntax = '[server id]' |
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description = 'list servers' |
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|
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def add_options(self, parser): |
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parser.add_option('-a', action='store_true', dest='show_deleted', |
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default=False, help='also list deleted servers') |
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parser.add_option('-l', action='store_true', dest='detail', |
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default=False, help='show detailed output') |
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parser.add_option('-u', dest='uid', metavar='UID', |
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help='show servers of user with id UID') |
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|
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def main(self, server_id=None): |
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servers = models.VirtualMachine.objects.order_by('id') |
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if server_id: |
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servers = servers.filter(id=server_id) |
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if not self.show_deleted: |
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servers = servers.filter(deleted=False) |
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if self.uid: |
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user = get_user(self.uid) |
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if user: |
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servers = servers.filter(owner=user) |
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else: |
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print 'Unknown user id' |
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return |
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|
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print_items(servers, self.detail) |
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|
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|
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class ListUsers(Command): |
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group = 'user' |
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name = 'list' |
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syntax = '[user id]' |
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description = 'list users' |
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|
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def add_options(self, parser): |
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parser.add_option('-l', action='store_true', dest='detail', |
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default=False, help='show detailed output') |
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|
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def main(self, user_id=None): |
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if user_id: |
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users = [models.SynnefoUser.objects.get(id=user_id)] |
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else: |
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users = models.SynnefoUser.objects.order_by('id') |
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print_items(users, self.detail) |
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|
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|
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class ListImages(Command): |
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group = 'image' |
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name = 'list' |
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syntax = '[image id]' |
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description = 'list images' |
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|
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def add_options(self, parser): |
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parser.add_option('-l', action='store_true', dest='detail', |
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default=False, help='show detailed output') |
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|
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def main(self, image_id=None): |
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if image_id: |
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images = [models.Image.objects.get(id=image_id)] |
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else: |
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images = models.Image.objects.order_by('id') |
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print_items(images, self.detail) |
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|
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|
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class RegisterImage(Command): |
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group = 'image' |
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name = 'register' |
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syntax = '<name> <backend id>' |
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description = 'register an image' |
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|
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def add_options(self, parser): |
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parser.add_option('--public', action='store_true', dest='public', |
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default=False, help='make image public') |
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parser.add_option('-u', dest='uid', metavar='UID', |
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help='assign image to user with id UID') |
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def main(self, name, backend_id): |
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user = None |
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if self.uid: |
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user = get_user(self.uid) |
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if not user: |
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print 'Unknown user id' |
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return |
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image = models.Image.objects.create( |
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name=name, |
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state='ACTIVE', |
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owner=user, |
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backend_id=backend_id, |
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public=self.public) |
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print_items([image], detail=True) |
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|
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|
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class ModifyImage(Command): |
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group = 'image' |
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name = 'modify' |
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syntax = '<image id>' |
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description = 'modify an image' |
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|
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def add_options(self, parser): |
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parser.add_option('-b', dest='backend_id', metavar='BACKEND_ID', |
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help='set image backend id') |
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parser.add_option('-f', dest='format', metavar='FORMAT', |
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help='set image format') |
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parser.add_option('-n', dest='name', metavar='NAME', |
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help='set image name') |
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parser.add_option('--public', action='store_true', dest='public', |
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default=False, help='make image public') |
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parser.add_option('--nopublic', action='store_true', dest='private', |
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default=False, help='make image private') |
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parser.add_option('-s', dest='state', metavar='STATE', |
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default=False, help='set image state') |
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parser.add_option('-u', dest='uid', metavar='UID', |
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help='assign image to user with id UID') |
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|
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def main(self, image_id): |
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try: |
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image = models.Image.objects.get(id=image_id) |
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except: |
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print 'Image not found' |
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return |
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|
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if self.backend_id: |
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image.backend_id = self.backend_id |
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if self.format: |
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image.format = format |
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if self.name: |
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image.name = self.name |
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if self.public: |
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image.public = True |
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if self.private: |
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image.public = False |
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if self.state: |
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image.state = self.state |
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if self.uid: |
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image.owner = get_user(self.uid) |
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|
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image.save() |
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|
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|
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class ModifyImageMeta(Command): |
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group = 'image' |
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name = 'meta' |
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syntax = '<image id> [key[=val]]' |
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description = 'get and manipulate image metadata' |
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|
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def main(self, image_id, arg=''): |
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try: |
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image = models.Image.objects.get(id=image_id) |
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except: |
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print 'Image not found' |
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return |
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|
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key, sep, val = arg.partition('=') |
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if not sep: |
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val = None |
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|
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if not key: |
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metadata = {} |
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for meta in image.imagemetadata_set.order_by('meta_key'): |
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metadata[meta.meta_key] = meta.meta_value |
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print_dict(metadata) |
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return |
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|
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try: |
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meta = image.imagemetadata_set.get(meta_key=key) |
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except models.ImageMetadata.DoesNotExist: |
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meta = None |
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|
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if val is None: |
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if meta: |
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print_dict({key: meta.meta_value}) |
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return |
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|
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if val: |
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if not meta: |
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meta = image.imagemetadata_set.create(meta_key=key) |
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meta.meta_value = val |
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meta.save() |
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else: |
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# Delete if val is empty |
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if meta: |
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meta.delete() |
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|
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|
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def print_usage(exe, groups, group=None, shortcut=False): |
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nop = Command(exe, []) |
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nop.parser.print_help() |
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if group: |
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groups = {group: groups[group]} |
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|
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|
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print 'Commands:' |
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|
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for group, commands in sorted(groups.items()): |
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for command, cls in sorted(commands.items()): |
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name = ' %s %s' % (group, command) |
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print '%s %s' % (name.ljust(22), cls.description) |
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|
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|
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|
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def main(): |
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groups = defaultdict(dict) |
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module = sys.modules[__name__] |
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for name, cls in inspect.getmembers(module, inspect.isclass): |
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if not issubclass(cls, Command) or cls == Command: |
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continue |
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groups[cls.group][cls.name] = cls |
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|
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argv = list(sys.argv) |
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exe = basename(argv.pop(0)) |
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prefix, sep, suffix = exe.partition('-') |
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if sep and prefix == 'snf' and suffix in groups: |
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# Allow shortcut aliases like snf-image, snf-server, etc |
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group = suffix |
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else: |
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group = argv.pop(0) if argv else None |
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if group in groups: |
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exe = '%s %s' % (exe, group) |
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else: |
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exe = '%s <group>' % exe |
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group = None |
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|
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command = argv.pop(0) if argv else None |
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|
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if group not in groups or command not in groups[group]: |
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print_usage(exe, groups, group) |
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sys.exit(1) |
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|
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cls = groups[group][command] |
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cmd = cls(exe, argv) |
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cmd.execute() |
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|
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|
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if __name__ == '__main__': |
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main() |