Synnefo

#!/usr/bin/env python

from functools import wraps

from httplib import HTTPConnection

from optparse import OptionParser

from os.path import basename

from sys import argv, exit

import json

DEFAULT_HOST = '127.0.0.1:8000'

DEFAULT_API = 'v1.1'

commands = {}

def command_name(name):

    def decorator(cls):

        commands[name] = cls

        return cls

    return decorator

def address_to_string(address):

    key = address['id']

    val = ' '.join(ip['addr'] for ip in address['values'])

    return '%s: %s' % (key, val)

def print_dict(d, show_empty=True):

    for key, val in sorted(d.items()):

        if key == 'metadata':

            val = ', '.join('%s="%s"' % x for x in val['values'].items())

        if key == 'addresses':

            val = ', '.join(address_to_string(address) for address in val['values'])

        if val or show_empty:

            print '%s: %s' % (key.rjust(12), val)

class Command(object):

    def __init__(self, argv):

        parser = OptionParser()

        parser.add_option('--host', dest='host', metavar='HOST', default=DEFAULT_HOST,

                            help='use server HOST')

        parser.add_option('--api', dest='api', metavar='API', default=DEFAULT_API,

                            help='use api API')

        parser.add_option('-v', action='store_true', dest='verbose', default=False,

                            help='use verbose output')

        self.add_options(parser)

        options, args = parser.parse_args(argv)

        # Add options to self

        for opt in parser.option_list:

            key = opt.dest

            if key:

                val = getattr(options, key)

                setattr(self, key, val)

        self.execute(*args)

    def add_options(self, parser):

        pass

    def execute(self, *args):

        pass

    def http_cmd(self, method, path, body=None, expected_status=200):

        conn = HTTPConnection(self.host)

        kwargs = {}

        if body:

            kwargs['headers'] = {'Content-Type': 'application/json'}

            kwargs['body'] = body

        conn.request(method, path, **kwargs)

        resp = conn.getresponse()

        if self.verbose:

            print '%d %s' % (resp.status, resp.reason)

            for key, val in resp.getheaders():

                print '%s: %s' % (key.capitalize(), val)

            print

        buf = resp.read() or '{}'

        reply = json.loads(buf)

        if resp.status != expected_status:

            if len(reply) == 1:

                key = reply.keys()[0]

                val = reply[key]

                print '%s: %s' % (key, val.get('message', ''))

                if self.verbose:

                    print val.get('details', '')

                exit(1)

        return reply

    def http_get(self, path, expected_status=200):

        return self.http_cmd('GET', path, None, expected_status)

    def http_post(self, path, body, expected_status=202):

        return self.http_cmd('POST', path, body, expected_status)

    def http_put(self, path, body, expected_status=204):

        return self.http_cmd('PUT', path, body, expected_status)

    def http_delete(self, path, expected_status=204):

        return self.http_cmd('DELETE', path, None, expected_status)

@command_name('ls')

class ListServers(Command):

    description = 'list servers'

    def add_options(self, parser):

        parser.add_option('-l', action='store_true', dest='detail', default=False,

                            help='show detailed output')

        parser.add_option('-a', action='store_true', dest='show_empty', default=False,

                            help='include empty values')

    def execute(self):

        path = '/api/%s/servers' % self.api

        if self.detail:

            path += '/detail'

        reply = self.http_get(path)

        for server in reply['servers']['values']:

            id = server.pop('id')

            name = server.pop('name')

            if self.detail:

                print '%d %s' % (id, name)

                print_dict(server, self.show_empty)

                print

            else:

                print '%3d %s' % (id, name)

@command_name('info')

class GetServerDetails(Command):

    description = 'get server details'

    syntax = '<server id>'

    def add_options(self, parser):

        parser.add_option('-a', action='store_true', dest='show_empty', default=False,

                            help='include empty values')

    def execute(self, server_id):

        path = '/api/%s/servers/%d' % (self.api, int(server_id))

        reply = self.http_get(path)

        server = reply['server']

        server.pop('id')

        print_dict(server, self.show_empty)

@command_name('create')

class CreateServer(Command):

    description = 'create server'

    syntax = '<server name>'

    def add_options(self, parser):

        parser.add_option('-f', dest='flavor', metavar='FLAVOR_ID', default=1,

                            help='use flavor FLAVOR_ID')

        parser.add_option('-i', dest='image', metavar='IMAGE_ID', default=1,

                            help='use image IMAGE_ID')

    def execute(self, name):

        path = '/api/%s/servers' % self.api

        server = {'name': name, 'flavorRef': self.flavor, 'imageRef': self.image}

        body = json.dumps({'server': server})

        reply = self.http_post(path, body)

        server = reply['server']

        server.pop('id')

        print_dict(server)

@command_name('rename')

class UpdateServerName(Command):

    description = 'update server name'

    syntax = '<server id> <new name>'

    def execute(self, server_id, name):

        path = '/api/%s/servers/%d' % (self.api, int(server_id))

        body = json.dumps({'server': {'name': name}})

        self.http_put(path, body)

@command_name('delete')

class DeleteServer(Command):

    description = 'delete server'

    syntax = '<server id>'

    def execute(self, server_id):

        path = '/api/%s/servers/%d' % (self.api, int(server_id))

        self.http_delete(path)

@command_name('reboot')

class RebootServer(Command):

    description = 'reboot server'

    syntax = '<server id>'

    def add_options(self, parser):

        parser.add_option('-f', action='store_true', dest='hard', default=False,

                            help='perform a hard reboot')

    def execute(self, server_id):

        path = '/api/%s/servers/%d/action' % (self.api, int(server_id))

        type = 'HARD' if self.hard else 'SOFT'

        body = json.dumps({'reboot': {'type': type}})

        self.http_post(path, body)

@command_name('start')

class StartServer(Command):

    description = 'start server'

    syntax = '<server id>'

    def execute(self, server_id):

        path = '/api/%s/servers/%d/action' % (self.api, int(server_id))

        body = json.dumps({'start': {}})

        self.http_post(path, body)

@command_name('shutdown')

class StartServer(Command):

    description = 'shutdown server'

    syntax = '<server id>'

    def execute(self, server_id):

        path = '/api/%s/servers/%d/action' % (self.api, int(server_id))

        body = json.dumps({'shutdown': {}})

        self.http_post(path, body)

@command_name('lsaddr')

class ListAddresses(Command):

    description = 'list server addresses'

    syntax = '<server id> [network]'

    def execute(self, server_id, network=None):

        path = '/api/%s/servers/%d/ips' % (self.api, int(server_id))

        if network:

            path += '/%s' % network

        reply = self.http_get(path)

        addresses = [reply['network']] if network else reply['addresses']['values']

        for address in addresses:

            print address_to_string(address)

@command_name('lsflv')

class ListFlavors(Command):

    description = 'list flavors'

    def add_options(self, parser):

        parser.add_option('-l', action='store_true', dest='detail', default=False,

                            help='show detailed output')

    def execute(self):

        path = '/api/%s/flavors' % self.api

        if self.detail:

            path += '/detail'

        reply = self.http_get(path)

        for flavor in reply['flavors']['values']:

            id = flavor.pop('id')

            name = flavor.pop('name')

            details = ' '.join('%s=%s' % item for item in sorted(flavor.items()))

            print '%3d %s %s' % (id, name, details)

@command_name('flvinfo')

class GetFlavorDetails(Command):

    description = 'get flavor details'

    syntax = '<flavor id>'

    def execute(self, flavor_id):

        path = '/api/%s/flavors/%d' % (self.api, int(flavor_id))

        reply = self.http_get(path)

        flavor = reply['flavor']

        id = flavor.pop('id')

        name = flavor.pop('name')

        details = ' '.join('%s=%s' % item for item in sorted(flavor.items()))

        print '%3d %s %s' % (id, name, details)

@command_name('lsimg')

class ListImages(Command):

    description = 'list images'

    def add_options(self, parser):

        parser.add_option('-l', action='store_true', dest='detail', default=False,

                            help='show detailed output')

    def execute(self):

        path = '/api/%s/images' % self.api

        if self.detail:

            path += '/detail'

        reply = self.http_get(path)

        for image in reply['images']['values']:

            id = image.pop('id')

            name = image.pop('name')

            if self.detail:

                print '%d %s' % (id, name)

                print_dict(image)

                print

            else:

                print '%3d %s' % (id, name)        

@command_name('imginfo')

class GetImageDetails(Command):

    description = 'get image details'

    syntax = '<image id>'

    def execute(self, image_id):

        path = '/api/%s/images/%d' % (self.api, int(image_id))

        reply = self.http_get(path)

        image = reply['image']

        image.pop('id')

        print_dict(image)

@command_name('createimg')

class CreateImage(Command):

    description = 'create image'

    syntax = '<server id> <image name>'

    def execute(self, server_id, name):

        path = '/api/%s/images' % self.api

        image = {'name': name, 'serverRef': int(server_id)}

        body = json.dumps({'image': image})

        reply = self.http_post(path, body)

        print_dict(reply['image'])

@command_name('deleteimg')

class DeleteImage(Command):

    description = 'delete image'

    syntax = '<image id>'

    def execute(self, image_id):

        path = '/api/%s/images/%d' % (self.api, int(image_id))

        self.http_delete(path)

@command_name('lsmeta')

class ListServerMeta(Command):

    description = 'list server meta'

    syntax = '<server id> [key]'

    def execute(self, server_id, key=None):

        path = '/api/%s/servers/%d/meta' % (self.api, int(server_id))

        if key:

            path += '/' + key

        reply = self.http_get(path)

        if key:

            print_dict(reply['meta'])

        else:

            print_dict(reply['metadata']['values'])

@command_name('setmeta')

class UpdateServerMeta(Command):

    description = 'update server meta'

    syntax = '<server id> <key> <val>'

    def execute(self, server_id, key, val):

        path = '/api/%s/servers/%d/meta' % (self.api, int(server_id))

        metadata = {key: val}

        body = json.dumps({'metadata': metadata})

        reply = self.http_post(path, body, expected_status=201)

        print_dict(reply['metadata'])

@command_name('addmeta')

class CreateServerMeta(Command):

    description = 'add server meta'

    syntax = '<server id> <key> <val>'

    def execute(self, server_id, key, val):

        path = '/api/%s/servers/%d/meta/%s' % (self.api, int(server_id), key)

        meta = {key: val}

        body = json.dumps({'meta': meta})

        reply = self.http_put(path, body, expected_status=201)

        print_dict(reply['meta'])

@command_name('delmeta')

class DeleteServerMeta(Command):

    description = 'delete server meta'

    syntax = '<server id> <key>'

    def execute(self, server_id, key):

        path = '/api/%s/servers/%d/meta/%s' % (self.api, int(server_id), key)

        reply = self.http_delete(path)

def main():

    try:

        name = argv[1]    

        cls = commands[name]

    except (IndexError, KeyError):

        print 'Usage: %s <command>' % basename(argv[0])

        print

        print 'Commands:'

        for name, cls in sorted(commands.items()):

            description = getattr(cls, 'description', '')

            print '  %s %s' % (name.ljust(12), description)

        exit(1)

    try:

        commands[name](argv[2:])

    except TypeError:

        syntax = getattr(cls, 'syntax', '')

        if syntax:

            print 'Syntax: %s %s' % (name, syntax)

        else:

            print 'Invalid syntax'

        exit(1)

if __name__ == '__main__':

    main()