Synnefo » ./kamaki

# Copyright 2011-2013 GRNET S.A. All rights reserved.

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#

#   1. Redistributions of source code must retain the above

#      copyright notice, this list of conditions and the following

#      disclaimer.

#

#   2. Redistributions in binary form must reproduce the above

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#      disclaimer in the documentation and/or other materials

#      provided with the distribution.

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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

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from kamaki.cli import command

from kamaki.cli.command_tree import CommandTree

from kamaki.cli.utils import print_dict, print_list, print_items

from kamaki.cli.errors import raiseCLIError, CLISyntaxError

from kamaki.clients.cyclades import CycladesClient, ClientError

from kamaki.cli.argument import FlagArgument, ValueArgument, KeyValueArgument

from kamaki.cli.argument import ProgressBarArgument, DateArgument, IntArgument

from kamaki.cli.commands import _command_init, errors

from base64 import b64encode

from os.path import exists

server_cmds = CommandTree('server', 'Compute/Cyclades API server commands')

flavor_cmds = CommandTree('flavor', 'Compute/Cyclades API flavor commands')

image_cmds = CommandTree('image', 'Cyclades/Plankton API image commands')

network_cmds = CommandTree('network', 'Compute/Cyclades API network commands')

_commands = [server_cmds, flavor_cmds, image_cmds, network_cmds]

about_authentication = '\nUser Authentication:\

    \n* to check authentication: /astakos authenticate\

    \n* to set authentication token: /config set token <token>'

howto_personality = [

    'Defines a file to be injected to VMs personality.',

    'Personality value syntax: PATH,[SERVER_PATH,[OWNER,[GROUP,[MODE]]]]',

    '  PATH: of local file to be injected',

    '  SERVER_PATH: destination location inside server Image',

    '  OWNER: user id of destination file owner',

    '  GROUP: group id or name to own destination file',

    '  MODEL: permition in octal (e.g. 0777 or o+rwx)']

class _init_cyclades(_command_init):

    @errors.generic.all

    def _run(self, service='compute'):

        token = self.config.get(service, 'token')\

            or self.config.get('global', 'token')

        base_url = self.config.get(service, 'url')\

            or self.config.get('global', 'url')

        self.client = CycladesClient(base_url=base_url, token=token)

    def main(self):

        self._run()

@command(server_cmds)

class server_list(_init_cyclades):

    """List Virtual Machines accessible by user"""

    __doc__ += about_authentication

    arguments = dict(

        detail=FlagArgument('show detailed output', '-l'),

        since=DateArgument(

            'show only items since date (\' d/m/Y H:M:S \')',

            '--since'),

        limit=IntArgument('limit the number of VMs to list', '-n'),

        more=FlagArgument(

            'output results in pages (-n to set items per page, default 10)',

            '--more')

    )

    def _make_results_pretty(self, servers):

        for server in servers:

            addr_dict = {}

            if 'attachments' in server:

                for addr in server['attachments']['values']:

                    ips = addr.pop('values', [])

                    for ip in ips:

                        addr['IPv%s' % ip['version']] = ip['addr']

                    if 'firewallProfile' in addr:

                        addr['firewall'] = addr.pop('firewallProfile')

                    addr_dict[addr.pop('id')] = addr

                server['attachments'] = addr_dict if addr_dict else None

            if 'metadata' in server:

                server['metadata'] = server['metadata']['values']

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.date

    def _run(self):

        servers = self.client.list_servers(self['detail'], self['since'])

        if self['detail']:

            self._make_results_pretty(servers)

        if self['more']:

            print_items(

                servers,

                page_size=self['limit'] if self['limit'] else 10)

        else:

            print_items(

                servers[:self['limit'] if self['limit'] else len(servers)])

    def main(self):

        super(self.__class__, self)._run()

        self._run()

@command(server_cmds)

class server_info(_init_cyclades):

    """Detailed information on a Virtual Machine

    Contains:

    - name, id, status, create/update dates

    - network interfaces

    - metadata (e.g. os, superuser) and diagnostics

    - hardware flavor and os image ids

    """

    def _print(self, server):

        addr_dict = {}

        if 'attachments' in server:

            atts = server.pop('attachments')

            for addr in atts['values']:

                ips = addr.pop('values', [])

                for ip in ips:

                    addr['IPv%s' % ip['version']] = ip['addr']

                if 'firewallProfile' in addr:

                    addr['firewall'] = addr.pop('firewallProfile')

                addr_dict[addr.pop('id')] = addr

            server['attachments'] = addr_dict if addr_dict else None

        if 'metadata' in server:

            server['metadata'] = server['metadata']['values']

        print_dict(server, ident=1)

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    def _run(self, server_id):

        server = self.client.get_server_details(server_id)

        self._print(server)

    def main(self, server_id):

        super(self.__class__, self)._run()

        self._run(server_id=server_id)

class PersonalityArgument(KeyValueArgument):

    @property

    def value(self):

        return self._value if hasattr(self, '_value') else []

    @value.setter

    def value(self, newvalue):

        if newvalue == self.default:

            return self.value

        self._value = []

        for i, terms in enumerate(newvalue):

            termlist = terms.split(',')

            if len(termlist) > 5:

                msg = 'Wrong number of terms (should be 1 to 5)'

                raiseCLIError(CLISyntaxError(msg), details=howto_personality)

            path = termlist[0]

            if not exists(path):

                raiseCLIError(

                    None,

                    '--personality: File %s does not exist' % path,

                    importance=1,

                    details=howto_personality)

            self._value.append(dict(path=path))

            with open(path) as f:

                self._value[i]['contents'] = b64encode(f.read())

            try:

                self._value[i]['path'] = termlist[1]

                self._value[i]['owner'] = termlist[2]

                self._value[i]['group'] = termlist[3]

                self._value[i]['mode'] = termlist[4]

            except IndexError:

                pass

@command(server_cmds)

class server_create(_init_cyclades):

    """Create a server (aka Virtual Machine)

    Parameters:

    - name: (single quoted text)

    - flavor id: Hardware flavor. Pick one from: /flavor list

    - image id: OS images. Pick one from: /image list

    """

    arguments = dict(

        personality=PersonalityArgument(

            ' /// '.join(howto_personality),

            '--personality')

    )

    @errors.generic.all

    @errors.cyclades.connection

    @errors.plankton.id

    @errors.cyclades.flavor_id

    def _run(self, name, flavor_id, image_id):

        r = self.client.create_server(

            name,

            int(flavor_id),

            image_id,

            self['personality'])

        print_dict(r)

    def main(self, name, flavor_id, image_id):

        super(self.__class__, self)._run()

        self._run(name=name, flavor_id=flavor_id, image_id=image_id)

@command(server_cmds)

class server_rename(_init_cyclades):

    """Set/update a server (VM) name

    VM names are not unique, therefore multiple servers may share the same name

    """

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    def _run(self, server_id, new_name):

        self.client.update_server_name(int(server_id), new_name)

    def main(self, server_id, new_name):

        super(self.__class__, self)._run()

        self._run(server_id=server_id, new_name=new_name)

@command(server_cmds)

class server_delete(_init_cyclades):

    """Delete a server (VM)"""

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    def _run(self, server_id):

            self.client.delete_server(int(server_id))

    def main(self, server_id):

        super(self.__class__, self)._run()

        self._run(server_id=server_id)

@command(server_cmds)

class server_reboot(_init_cyclades):

    """Reboot a server (VM)"""

    arguments = dict(

        hard=FlagArgument('perform a hard reboot', '-f')

    )

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    def _run(self, server_id):

        self.client.reboot_server(int(server_id), self['hard'])

    def main(self, server_id):

        super(self.__class__, self)._run()

        self._run(server_id=server_id)

@command(server_cmds)

class server_start(_init_cyclades):

    """Start an existing server (VM)"""

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    def _run(self, server_id):

        self.client.start_server(int(server_id))

    def main(self, server_id):

        super(self.__class__, self)._run()

        self._run(server_id=server_id)

@command(server_cmds)

class server_shutdown(_init_cyclades):

    """Shutdown an active server (VM)"""

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    def _run(self, server_id):

        self.client.shutdown_server(int(server_id))

    def main(self, server_id):

        super(self.__class__, self)._run()

        self._run(server_id=server_id)

@command(server_cmds)

class server_console(_init_cyclades):

    """Get a VNC console to access an existing server (VM)

    Console connection information provided (at least):

    - host: (url or address) a VNC host

    - port: (int) the gateway to enter VM on host

    - password: for VNC authorization

    """

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    def _run(self, server_id):

        r = self.client.get_server_console(int(server_id))

        print_dict(r)

    def main(self, server_id):

        super(self.__class__, self)._run()

        self._run(server_id=server_id)

@command(server_cmds)

class server_firewall(_init_cyclades):

    """Set the server (VM) firewall profile on VMs public network

    Values for profile:

    - DISABLED: Shutdown firewall

    - ENABLED: Firewall in normal mode

    - PROTECTED: Firewall in secure mode

    """

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    @errors.cyclades.firewall

    def _run(self, server_id, profile):

        self.client.set_firewall_profile(

            server_id=int(server_id),

            profile=unicode(profile).upper())

    def main(self, server_id, profile):

        super(self.__class__, self)._run()

        self._run(server_id=server_id, profile=profile)

@command(server_cmds)

class server_addr(_init_cyclades):

    """List the addresses of all network interfaces on a server (VM)"""

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    def _run(self, server_id):

        reply = self.client.list_server_nics(int(server_id))

        print_list(reply, with_enumeration=len(reply) > 1)

    def main(self, server_id):

        super(self.__class__, self)._run()

        self._run(server_id=server_id)

@command(server_cmds)

class server_meta(_init_cyclades):

    """Get a server's metadatum

    Metadata are formed as key:value pairs where key is used to retrieve them

    """

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    @errors.cyclades.metadata

    def _run(self, server_id, key=''):

        r = self.client.get_server_metadata(int(server_id), key)

        print_dict(r)

    def main(self, server_id, key=''):

        super(self.__class__, self)._run()

        self._run(server_id=server_id, key=key)

@command(server_cmds)

class server_setmeta(_init_cyclades):

    """set server (VM) metadata

    Metadata are formed as key:value pairs, both needed to set one

    """

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

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

        metadata = {key: val}

        r = self.client.update_server_metadata(int(server_id), **metadata)

        print_dict(r)

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

        super(self.__class__, self)._run()

        self._run(server_id=server_id, key=key, val=val)

@command(server_cmds)

class server_delmeta(_init_cyclades):

    """Delete server (VM) metadata"""

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    @errors.cyclades.metadata

    def _run(self, server_id, key):

        self.client.delete_server_metadata(int(server_id), key)

    def main(self, server_id, key):

        super(self.__class__, self)._run()

        self._run(server_id=server_id, key=key)

@command(server_cmds)

class server_stats(_init_cyclades):

    """Get server (VM) statistics"""

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    def _run(self, server_id):

        r = self.client.get_server_stats(int(server_id))

        print_dict(r, exclude=('serverRef',))

    def main(self, server_id):

        super(self.__class__, self)._run()

        self._run(server_id=server_id)

@command(server_cmds)

class server_wait(_init_cyclades):

    """Wait for server to finish [BUILD, STOPPED, REBOOT, ACTIVE]"""

    arguments = dict(

        progress_bar=ProgressBarArgument(

            'do not show progress bar',

            '--no-progress-bar',

            False

        )

    )

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    def _run(self, server_id, currect_status):

        (progress_bar, wait_cb) = self._safe_progress_bar(

            'Server %s still in %s mode' % (server_id, currect_status))

        try:

            new_mode = self.client.wait_server(

                server_id,

                currect_status,

                wait_cb=wait_cb)

        except Exception:

            self._safe_progress_bar_finish(progress_bar)

            raise

        finally:

            self._safe_progress_bar_finish(progress_bar)

        if new_mode:

            print('Server %s is now in %s mode' % (server_id, new_mode))

        else:

            raiseCLIError(None, 'Time out')

    def main(self, server_id, currect_status='BUILD'):

        super(self.__class__, self)._run()

        self._run(server_id=server_id, currect_status=currect_status)

@command(flavor_cmds)

class flavor_list(_init_cyclades):

    """List available hardware flavors"""

    arguments = dict(

        detail=FlagArgument('show detailed output', '-l'),

        limit=IntArgument('limit the number of flavors to list', '-n'),

        more=FlagArgument(

            'output results in pages (-n to set items per page, default 10)',

            '--more')

    )

    @errors.generic.all

    @errors.cyclades.connection

    def _run(self):

        flavors = self.client.list_flavors(self['detail'])

        pg_size = 10 if self['more'] and not self['limit'] else self['limit']

        print_items(flavors, with_redundancy=self['detail'], page_size=pg_size)

    def main(self):

        super(self.__class__, self)._run()

        self._run()

@command(flavor_cmds)

class flavor_info(_init_cyclades):

    """Detailed information on a hardware flavor

    To get a list of available flavors and flavor ids, try /flavor list

    """

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.flavor_id

    def _run(self, flavor_id):

        flavor = self.client.get_flavor_details(int(flavor_id))

        print_dict(flavor)

    def main(self, flavor_id):

        super(self.__class__, self)._run()

        self._run(flavor_id=flavor_id)

@command(network_cmds)

class network_info(_init_cyclades):

    """Detailed information on a network

    To get a list of available networks and network ids, try /network list

    """

    @classmethod

    def _make_result_pretty(self, net):

        if 'attachments' in net:

            att = net['attachments']['values']

            count = len(att)

            net['attachments'] = att if count else None

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.network_id

    def _run(self, network_id):

        network = self.client.get_network_details(int(network_id))

        self._make_result_pretty(network)

        print_dict(network, exclude=('id'))

    def main(self, network_id):

        super(self.__class__, self)._run()

        self._run(network_id=network_id)

@command(network_cmds)

class network_list(_init_cyclades):

    """List networks"""

    arguments = dict(

        detail=FlagArgument('show detailed output', '-l'),

        limit=IntArgument('limit the number of networks in list', '-n'),

        more=FlagArgument(

            'output results in pages (-n to set items per page, default 10)',

            '--more')

    )

    def _make_results_pretty(self, nets):

        for net in nets:

            network_info._make_result_pretty(net)

    @errors.generic.all

    @errors.cyclades.connection

    def _run(self):

        networks = self.client.list_networks(self['detail'])

        if self['detail']:

            self._make_results_pretty(networks)

        if self['more']:

            print_items(networks, page_size=self['limit'] or 10)

        elif self['limit']:

            print_items(networks[:self['limit']])

        else:

            print_items(networks)

    def main(self):

        super(self.__class__, self)._run()

        self._run()

@command(network_cmds)

class network_create(_init_cyclades):

    """Create an (unconnected) network"""

    arguments = dict(

        cidr=ValueArgument('explicitly set cidr', '--with-cidr'),

        gateway=ValueArgument('explicitly set gateway', '--with-gateway'),

        dhcp=ValueArgument('explicitly set dhcp', '--with-dhcp'),

        type=ValueArgument('explicitly set type', '--with-type')

    )

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.network_max

    def _run(self, name):

        r = self.client.create_network(

            name,

            cidr=self['cidr'],

            gateway=self['gateway'],

            dhcp=self['dhcp'],

            type=self['type'])

        print_items([r])

    def main(self, name):

        super(self.__class__, self)._run()

        self._run(name)

@command(network_cmds)

class network_rename(_init_cyclades):

    """Set the name of a network"""

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.network_id

    def _run(self, network_id, new_name):

        self.client.update_network_name(int(network_id), new_name)

    def main(self, network_id, new_name):

        super(self.__class__, self)._run()

        self._run(network_id=network_id, new_name=new_name)

@command(network_cmds)

class network_delete(_init_cyclades):

    """Delete a network"""

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.network_id

    @errors.cyclades.network_in_use

    def _run(self, network_id):

        self.client.delete_network(int(network_id))

    def main(self, network_id):

        super(self.__class__, self)._run()

        self._run(network_id=network_id)

@command(network_cmds)

class network_connect(_init_cyclades):

    """Connect a server to a network"""

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    @errors.cyclades.network_id

    def _run(self, server_id, network_id):

        self.client.connect_server(int(server_id), int(network_id))

    def main(self, server_id, network_id):

        super(self.__class__, self)._run()

        self._run(server_id=server_id, network_id=network_id)

@command(network_cmds)

class network_disconnect(_init_cyclades):

    """Disconnect a nic that connects a server to a network

    Nic ids are listed as "attachments" in detailed network information

    To get detailed network information: /network info <network id>

    """

    @errors.cyclades.nic_format

    def _server_id_from_nic(self, nic_id):

        return nic_id.split('-')[1]

    @errors.generic.all

    @errors.cyclades.connection

    @errors.cyclades.server_id

    @errors.cyclades.nic_id

    def _run(self, nic_id, server_id):

        if not self.client.disconnect_server(server_id, nic_id):

            raise ClientError(

                'Network Interface %s not found on server %s' % (

                    nic_id,

                    server_id),

                status=404)

    def main(self, nic_id):

        super(self.__class__, self)._run()

        server_id = self._server_id_from_nic(nic_id=nic_id)

        self._run(nic_id=nic_id, server_id=server_id)