Synnefo

#Copyright (C) 2013 GRNET S.A. All rights reserved.

#

#Redistribution and use in source and binary forms, with or

#without modification, are permitted provided that the following

#conditions are met:

#

#  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

#     copyright notice, this list of conditions and the following

#     disclaimer in the documentation and/or other materials

#     provided with the distribution.

#

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

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

#WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

#PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A. OR

#CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

#SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

#LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

#USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

#AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

#LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

#ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

#POSSIBILITY OF SUCH DAMAGE.

#

#The views and conclusions contained in the software and

#documentation are those of the authors and should not be

#interpreted as representing official policies, either expressed

#or implied, of GRNET S.A.

import sys

from snf_django.management.utils import pprint_table

from synnefo.lib.ordereddict import OrderedDict

from snf_django.lib.astakos import UserCache

from synnefo.settings import (CYCLADES_SERVICE_TOKEN as ASTAKOS_TOKEN,

                              ASTAKOS_AUTH_URL)

from synnefo.db.models import Backend, pooled_rapi_client

from synnefo.db.pools import bitarray_to_map

from synnefo.logic.rapi import GanetiApiError

from synnefo.logic.reconciliation import nics_from_instance

from synnefo.management.common import get_image

def pprint_network(network, display_mails=False, stdout=None, title=None):

    if stdout is None:

        stdout = sys.stdout

    if title is None:

        title = "State of Network %s in DB" % network.id

    ucache = UserCache(ASTAKOS_AUTH_URL, ASTAKOS_TOKEN)

    userid = network.userid

    db_network = OrderedDict([

        ("name", network.name),

        ("backend-name", network.backend_id),

        ("state", network.state),

        ("userid", userid),

        ("username", ucache.get_name(userid) if display_mails else None),

        ("public", network.public),

        ("floating_ip_pool", network.floating_ip_pool),

        ("external_router", network.external_router),

        ("drained", network.drained),

        ("MAC prefix", network.mac_prefix),

        ("flavor", network.flavor),

        ("link", network.link),

        ("mode", network.mode),

        ("deleted", network.deleted),

        ("tags", "), ".join(network.backend_tag)),

        ("action", network.action)])

    pprint_table(stdout, db_network.items(), None, separator=" | ",

                 title=title)

def pprint_network_subnets(network, stdout=None, title=None):

    if stdout is None:

        stdout = sys.stdout

    if title is None:

        title = "Subnets of network %s" % network.id

    subnets = list(network.subnets.values_list("id", "name", "ipversion",

                                               "cidr", "gateway", "dhcp",

                                               "deleted"))

    headers = ["ID", "Name", "Version", "CIDR", "Gateway", "DHCP",

               "Deleted"]

    pprint_table(stdout, subnets, headers, separator=" | ",

                 title=title)

def pprint_network_backends(network, stdout=None, title=None):

    if stdout is None:

        stdout = sys.stdout

    if title is None:

        title = "State of Network %s in DB for each backend" % network.id

    bnets = list(network.backend_networks.values_list(

        "backend__clustername",

        "operstate", "deleted", "backendjobid",

        "backendopcode", "backendjobstatus"))

    headers = ["Backend", "State", "Deleted", "JobID", "Opcode",

               "JobStatus"]

    pprint_table(stdout, bnets, headers, separator=" | ",

                 title=title)

def pprint_network_in_ganeti(network, stdout=None):

    if stdout is None:

        stdout = sys.stdout

    for backend in Backend.objects.exclude(offline=True):

        with pooled_rapi_client(backend) as client:

            try:

                g_net = client.GetNetwork(network.backend_id)

                ip_map = g_net.pop("map")

                pprint_table(stdout, g_net.items(), None,

                             title="State of network in backend: %s" %

                                   backend.clustername)

                if network.subnet4 is not None:

                    pprint_pool(None, ip_map, 80, stdout)

            except GanetiApiError as e:

                if e.code == 404:

                    stdout.write('Network does not exist in backend %s\n' %

                                 backend.clustername)

                else:

                    raise e

def pprint_subnet_in_db(subnet, stdout=None, title=None):

    if stdout is None:

        stdout = sys.stdout

    if title is None:

        title = "State of Subnet %s in DB" % subnet.id

    info = OrderedDict([("ID", subnet.id),

                        ("Network_ID", subnet.network.id),

                        # If a user names his subnet "-", what happens then?

                        ("Name", "-" if subnet.name == "" else subnet.name),

                        ("IP_Version", subnet.ipversion),

                        ("CIDR", subnet.cidr),

                        ("Gateway", subnet.gateway),

                        ("DHCP/SLAAC", subnet.dhcp),

                        ("Host_Routes", subnet.host_routes),

                        ("DNS_Nameservers", subnet.dns_nameservers)])

    pprint_table(stdout, info.items(), None, separator=" | ", title=title)

def pprint_ippool(subnet, stdout=None, title=None):

    """Pretty print IP Pools of a subnet. Only IPv4 subnets have IP Pools"""

    if int(subnet.ipversion) != 4:

        return 0

    if stdout is None:

        stdout = sys.stdout

    stdout.write("IP Pools of subnet %s:\n\n" % subnet.id)

    for pool in subnet.get_ip_pools():

        size = pool.pool_size

        available = pool.available.count()

        info = OrderedDict([("First_IP", pool.return_start()),

                            ("Last_IP", pool.return_end()),

                            ("Size", size),

                            ("Available", available)])

        pprint_table(stdout, info.items(), None, separator=" | ", title=None)

        reserved = [pool.index_to_value(index)

                    for index, ip in enumerate(pool.reserved[:size])

                    if ip is False]

        if reserved != []:

            stdout.write("\nExternally Reserved IPs:\n\n")

            stdout.write(", ".join(reserved) + "\n")

        ip_sum = pool.available[:size] & pool.reserved[:size]

        pprint_pool(None, bitarray_to_map(ip_sum), 80, stdout)

        stdout.write("\n\n")

def pool_map_chunks(smap, step=64):

    for i in xrange(0, len(smap), step):

        yield smap[i:i + step]

def splitPoolMap(s, count):

    chunks = pool_map_chunks(s, count)

    acc = []

    count = 0

    for chunk in chunks:

        chunk_len = len(chunk)

        acc.append(str(count).rjust(3) + ' ' + chunk + ' ' +

                   str(count + chunk_len - 1).ljust(4))

        count += chunk_len

    return '\n' + '\n'.join(acc)

def pprint_pool(name, pool_map, step=80, stdout=None):

    if stdout is None:

        stdout = sys.stdout

    if name is not None:

        stdout.write("Pool: %s\n" % name)

    stdout.write(splitPoolMap(pool_map, count=step))

    stdout.write("\n")

def pprint_port(port, stdout=None, title=None):

    if stdout is None:

        stdout = sys.stdout

    if title is None:

        title = "State of Port %s in DB" % port.id

    port = OrderedDict([

        ("id", port.id),

        ("name", port.name),

        ("userid", port.userid),

        ("server", port.machine_id),

        ("network", port.network_id),

        ("device_owner", port.device_owner),

        ("mac", port.mac),

        ("state", port.state)])

    pprint_table(stdout, port.items(), None, separator=" | ",

                 title=title)

def pprint_port_ips(port, stdout=None, title=None):

    if stdout is None:

        stdout = sys.stdout

    if title is None:

        title = "IP Addresses of Port %s" % port.id

    ips = list(port.ips.values_list("address", "network_id", "subnet_id",

                                    "subnet__cidr", "floating_ip"))

    headers = ["Address", "Network", "Subnet", "CIDR", "is_floating"]

    pprint_table(stdout, ips, headers, separator=" | ",

                 title=title)

def pprint_port_in_ganeti(port, stdout=None, title=None):

    if stdout is None:

        stdout = sys.stdout

    if title is None:

        title = "State of Port %s in Ganeti" % port.id

    vm = port.machine

    if vm is None:

        stdout.write("Port is not attached to any instance.\n")

        return

    client = vm.get_client()

    try:

        vm_info = client.GetInstance(vm.backend_vm_id)

    except GanetiApiError as e:

        if e.code == 404:

            stdout.write("Port seems attached to server %s, but"

                         " server does not exist in backend.\n"

                         % vm)

            return

        raise e

    nics = nics_from_instance(vm_info)

    try:

        gnt_nic = filter(lambda nic: nic.get("name") == port.backend_uuid,

                         nics)[0]

        gnt_nic["instance"] = vm_info["name"]

    except IndexError:

        stdout.write("Port %s is not attached to instance %s" % (port, vm))

        return

    pprint_table(stdout, gnt_nic.items(), None, separator=" | ",

                 title=title)

    vm.put_client(client)

def pprint_server(server, display_mails=False, stdout=None, title=None):

    if stdout is None:

        stdout = sys.stdout

    if title is None:

        title = "State of Server %s in DB" % server.id

    ucache = UserCache(ASTAKOS_AUTH_URL, ASTAKOS_TOKEN)

    userid = server.userid

    try:

        image = get_image(server.imageid, server.userid)['name']

    except:

        image = server.imageid

    server_dict = OrderedDict([

        ("id", server.id),

        ("name", server.name),

        ("userid", server.userid),

        ("username", ucache.get_name(userid) if display_mails else None),

        ("flavor_id", server.flavor_id),

        ("flavor_name", server.flavor.name),

        ("imageid", server.imageid),

        ("image_name", image),

        ("state", server.operstate),

        ("backend", server.backend),

        ("deleted", server.deleted),

        ("action", server.action),

        ("task", server.task),

        ("task_job_id", server.task_job_id),

        ("backendjobid", server.backendjobid),

        ("backendopcode", server.backendopcode),

        ("backendjobstatus", server.backendjobstatus),

        ("backend_time", server.backendtime),

        ])

    pprint_table(stdout, server_dict.items(), None, separator=" | ",

                 title=title)

def pprint_server_nics(server, stdout=None, title=None):

    if title is None:

        title = "Ports of Server %s" % server.id

    if stdout is None:

        stdout = sys.stdout

    nics = []

    for nic in server.nics.all():

        nics.append((nic.id, nic.name, nic.index, nic.mac, nic.ipv4_address,

                     nic.ipv6_address, nic.network, nic.firewall_profile,

                     nic.state))

    headers = ["ID", "Name", "Index", "MAC", "IPv4 Address", "IPv6 Address",

               "Network", "Firewall", "State"]

    pprint_table(stdout, nics, headers, separator=" | ",

                 title=title)

def pprint_server_in_ganeti(server, print_jobs=False, stdout=None, title=None):

    if stdout is None:

        stdout = sys.stdout

    if title is None:

        title = "State of Server %s in Ganeti" % server.id

    client = server.get_client()

    try:

        server_info = client.GetInstance(server.backend_vm_id)

    except GanetiApiError as e:

        if e.code == 404:

            stdout.write("Server '%s' does not exist in backend '%s'\n"

                         % (server.id, server.backend.clustername))

            return

        raise e

    server.put_client(client)

    GANETI_INSTANCE_FIELDS = ('name', 'oper_state', 'admin_state', 'status',

                              'pnode', 'snode', 'network_port',

                              'disk_template', 'disk_usage',

                              'oper_ram', 'oper_vcpus', 'mtime')

    server_dict = OrderedDict([(k, server_info.get(k))

                              for k in GANETI_INSTANCE_FIELDS])

    pprint_table(stdout, server_dict.items(), None, separator=" | ",

                 title=title)

    stdout.write("\n")

    nics = nics_from_instance(server_info)

    nics_keys = ["ip", "mac", "name", "network"]

    nics_values = [[nic[key] for key in nics_keys] for nic in nics]

    pprint_table(stdout, nics_values, nics_keys, separator=" | ",

                 title="NICs of Server %s in Ganeti" % server.id)

    if not print_jobs:

        return

    client = server.get_client()

    jobs = client.GetJobs(bulk=True)

    server_jobs = filter(

        lambda x: server.backend_vm_id in (" ".join(x.get("summary"))), jobs)

    GANETI_JOB_FIELDS = ('id', 'status', 'summary', 'opresult', 'opstatus',

                         'oplog', 'start_ts', 'end_ts')

    for server_job in server_jobs:

        stdout.write("\n")

        values = [server_job.get(k) for k in GANETI_JOB_FIELDS]

        pprint_table(stdout, zip(GANETI_JOB_FIELDS, values), None,

                     separator=" | ",

                     title="Ganeti Job %s" % server_job["id"])

    server.put_client(client)