summaryrefslogtreecommitdiff
path: root/kolla/image/build.py
blob: 8cff1374294fe04e4c6d02837a47c30a507c4c34 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
#!/usr/bin/env python

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from __future__ import print_function

import contextlib
import datetime
import errno
import json
import logging
import os
import pprint
import re
import requests
import shutil
import sys
import tarfile
import tempfile
import threading
import time

import docker
import git
import jinja2
from oslo_config import cfg
from requests import exceptions as requests_exc
import six

# NOTE(SamYaple): Update the search path to prefer PROJECT_ROOT as the source
#                 of packages to import if we are using local tools instead of
#                 pip installed kolla tools
PROJECT_ROOT = os.path.abspath(os.path.join(
    os.path.dirname(os.path.realpath(__file__)), '../..'))
if PROJECT_ROOT not in sys.path:
    sys.path.insert(0, PROJECT_ROOT)

from kolla.common import config as common_config
from kolla.common import task
from kolla import exception
from kolla.template import filters as jinja_filters
from kolla.template import methods as jinja_methods
from kolla import version


def make_a_logger(conf=None, image_name=None):
    if image_name:
        log = logging.getLogger(".".join([__name__, image_name]))
    else:
        log = logging.getLogger(__name__)
    if not log.handlers:
        if conf is None or not conf.logs_dir or not image_name:
            handler = logging.StreamHandler(sys.stderr)
            log.propagate = False
        else:
            filename = os.path.join(conf.logs_dir, "%s.log" % image_name)
            handler = logging.FileHandler(filename, delay=True)
        handler.setFormatter(logging.Formatter(logging.BASIC_FORMAT))
        log.addHandler(handler)
    if conf is not None and conf.debug:
        log.setLevel(logging.DEBUG)
    else:
        log.setLevel(logging.INFO)
    return log


LOG = make_a_logger()

# Image status constants.
#
# TODO(harlowja): use enum lib in the future??
STATUS_CONNECTION_ERROR = 'connection_error'
STATUS_PUSH_ERROR = 'push_error'
STATUS_ERROR = 'error'
STATUS_PARENT_ERROR = 'parent_error'
STATUS_BUILT = 'built'
STATUS_BUILDING = 'building'
STATUS_UNMATCHED = 'unmatched'
STATUS_MATCHED = 'matched'
STATUS_UNPROCESSED = 'unprocessed'
STATUS_SKIPPED = 'skipped'

# All error status constants.
STATUS_ERRORS = (STATUS_CONNECTION_ERROR, STATUS_PUSH_ERROR,
                 STATUS_ERROR, STATUS_PARENT_ERROR)


class ArchivingError(Exception):
    pass


@contextlib.contextmanager
def join_many(threads):
    try:
        yield
        for t in threads:
            t.join()
    except KeyboardInterrupt:
        try:
            LOG.info('Waiting for daemon threads exit. Push Ctrl + c again to'
                     ' force exit')
            for t in threads:
                if t.is_alive():
                    LOG.debug('Waiting thread %s to exit', t.name)
                    # NOTE(Jeffrey4l): Python Bug: When join without timeout,
                    # KeyboardInterrupt is never sent.
                    t.join(0xffff)
                LOG.debug('Thread %s exits', t.name)
        except KeyboardInterrupt:
            LOG.warning('Force exits')


class DockerTask(task.Task):

    docker_kwargs = docker.utils.kwargs_from_env()

    def __init__(self):
        super(DockerTask, self).__init__()
        self._dc = None

    @property
    def dc(self):
        if self._dc is not None:
            return self._dc
        docker_kwargs = self.docker_kwargs.copy()
        self._dc = docker.Client(version='auto', **docker_kwargs)
        return self._dc


class Image(object):
    def __init__(self, name, canonical_name, path, parent_name='',
                 status=STATUS_UNPROCESSED, parent=None,
                 source=None, logger=None):
        self.name = name
        self.canonical_name = canonical_name
        self.path = path
        self.status = status
        self.parent = parent
        self.source = source
        self.parent_name = parent_name
        if logger is None:
            logger = make_a_logger(image_name=name)
        self.logger = logger
        self.children = []
        self.plugins = []
        self.additions = []

    def copy(self):
        c = Image(self.name, self.canonical_name, self.path,
                  logger=self.logger, parent_name=self.parent_name,
                  status=self.status, parent=self.parent)
        if self.source:
            c.source = self.source.copy()
        if self.children:
            c.children = list(self.children)
        if self.plugins:
            c.plugins = list(self.plugins)
        if self.additions:
            c.additions = list(self.additions)
        return c

    def __repr__(self):
        return ("Image(%s, %s, %s, parent_name=%s,"
                " status=%s, parent=%s, source=%s)") % (
            self.name, self.canonical_name, self.path,
            self.parent_name, self.status, self.parent, self.source)


class PushIntoQueueTask(task.Task):
    """Task that pushes some other task into a queue."""

    def __init__(self, push_task, push_queue):
        super(PushIntoQueueTask, self).__init__()
        self.push_task = push_task
        self.push_queue = push_queue

    @property
    def name(self):
        return 'PushIntoQueueTask(%s=>%s)' % (self.push_task.name,
                                              self.push_queue)

    def run(self):
        self.push_queue.put(self.push_task)
        self.success = True


class PushTask(DockerTask):
    """Task that pushes an image to a docker repository."""

    def __init__(self, conf, image):
        super(PushTask, self).__init__()
        self.conf = conf
        self.image = image
        self.logger = image.logger

    @property
    def name(self):
        return 'PushTask(%s)' % self.image.name

    def run(self):
        image = self.image
        self.logger.info('Trying to push the image')
        try:
            self.push_image(image)
        except requests_exc.ConnectionError:
            self.logger.exception('Make sure Docker is running and that you'
                                  ' have the correct privileges to run Docker'
                                  ' (root)')
            image.status = STATUS_CONNECTION_ERROR
        except Exception:
            self.logger.exception('Unknown error when pushing')
            image.status = STATUS_PUSH_ERROR
        finally:
            if (image.status not in STATUS_ERRORS
                    and image.status != STATUS_UNPROCESSED):
                self.logger.info('Pushed successfully')
                self.success = True
            else:
                self.success = False

    def push_image(self, image):
        for response in self.dc.push(image.canonical_name,
                                     stream=True,
                                     insecure_registry=True):
            stream = json.loads(response)
            if 'stream' in stream:
                self.logger.info(stream['stream'])
            elif 'errorDetail' in stream:
                image.status = STATUS_ERROR
                self.logger.error(stream['errorDetail']['message'])


class BuildTask(DockerTask):
    """Task that builds out an image."""

    def __init__(self, conf, image, push_queue):
        super(BuildTask, self).__init__()
        self.conf = conf
        self.image = image
        self.push_queue = push_queue
        self.nocache = not conf.cache
        self.forcerm = not conf.keep
        self.logger = image.logger

    @property
    def name(self):
        return 'BuildTask(%s)' % self.image.name

    def run(self):
        self.builder(self.image)
        if self.image.status in (STATUS_BUILT, STATUS_SKIPPED):
            self.success = True

    @property
    def followups(self):
        followups = []
        if self.conf.push and self.success:
            followups.extend([
                # If we are supposed to push the image into a docker
                # repository, then make sure we do that...
                PushIntoQueueTask(
                    PushTask(self.conf, self.image),
                    self.push_queue),
            ])
        if self.image.children and self.success:
            for image in self.image.children:
                if image.status == STATUS_UNMATCHED:
                    continue
                followups.append(BuildTask(self.conf, image, self.push_queue))
        return followups

    def process_source(self, image, source):
        dest_archive = os.path.join(image.path, source['name'] + '-archive')

        if source.get('type') == 'url':
            self.logger.debug("Getting archive from %s", source['source'])
            try:
                r = requests.get(source['source'], timeout=self.conf.timeout)
            except requests_exc.Timeout:
                self.logger.exception(
                    'Request timed out while getting archive from %s',
                    source['source'])
                image.status = STATUS_ERROR
                return

            if r.status_code == 200:
                with open(dest_archive, 'wb') as f:
                    f.write(r.content)
            else:
                self.logger.error(
                    'Failed to download archive: status_code %s',
                    r.status_code)
                image.status = STATUS_ERROR
                return

        elif source.get('type') == 'git':
            clone_dir = '{}-{}'.format(dest_archive,
                                       source['reference'].replace('/', '-'))
            try:
                self.logger.debug("Cloning from %s", source['source'])
                git.Git().clone(source['source'], clone_dir)
                git.Git(clone_dir).checkout(source['reference'])
                reference_sha = git.Git(clone_dir).rev_parse('HEAD')
                self.logger.debug("Git checkout by reference %s (%s)",
                                  source['reference'], reference_sha)
            except Exception as e:
                self.logger.error("Failed to get source from git", image.name)
                self.logger.error("Error: %s", e)
                # clean-up clone folder to retry
                shutil.rmtree(clone_dir)
                image.status = STATUS_ERROR
                return

            with tarfile.open(dest_archive, 'w') as tar:
                tar.add(clone_dir, arcname=os.path.basename(clone_dir))

        elif source.get('type') == 'local':
            self.logger.debug("Getting local archive from %s",
                              source['source'])
            if os.path.isdir(source['source']):
                with tarfile.open(dest_archive, 'w') as tar:
                    tar.add(source['source'],
                            arcname=os.path.basename(source['source']))
            else:
                shutil.copyfile(source['source'], dest_archive)

        else:
            self.logger.error("Wrong source type '%s'", source.get('type'))
            image.status = STATUS_ERROR
            return

        # Set time on destination archive to epoch 0
        os.utime(dest_archive, (0, 0))

        return dest_archive

    def update_buildargs(self):
        buildargs = dict()
        if self.conf.build_args:
            buildargs = dict(self.conf.build_args)

        proxy_vars = ('HTTP_PROXY', 'http_proxy', 'HTTPS_PROXY',
                      'https_proxy', 'FTP_PROXY', 'ftp_proxy',
                      'NO_PROXY', 'no_proxy')

        for proxy_var in proxy_vars:
            if proxy_var in os.environ and proxy_var not in buildargs:
                buildargs[proxy_var] = os.environ.get(proxy_var)

        if not buildargs:
            return None
        return buildargs

    def builder(self, image):

        def make_an_archive(items, arcname, item_child_path=None):
            if not item_child_path:
                item_child_path = arcname
            archives = list()
            items_path = os.path.join(image.path, item_child_path)
            for item in items:
                archive_path = self.process_source(image, item)
                if image.status in STATUS_ERRORS:
                    raise ArchivingError
                archives.append(archive_path)
            if archives:
                for archive in archives:
                    with tarfile.open(archive, 'r') as archive_tar:
                        archive_tar.extractall(path=items_path)
            else:
                try:
                    os.mkdir(items_path)
                except OSError as e:
                    if e.errno == errno.EEXIST:
                        self.logger.info(
                            'Directory %s already exist. Skipping.',
                            items_path)
                    else:
                        self.logger.error('Failed to create directory %s: %s',
                                          items_path, e)
                        image.status = STATUS_CONNECTION_ERROR
                        raise ArchivingError
            arc_path = os.path.join(image.path, '%s-archive' % arcname)
            with tarfile.open(arc_path, 'w') as tar:
                tar.add(items_path, arcname=arcname)
            return len(os.listdir(items_path))

        self.logger.debug('Processing')

        if image.status == STATUS_SKIPPED:
            self.logger.info('Skipping %s (--skip-parents)' % image.name)
            return

        if image.status == STATUS_UNMATCHED:
            return

        if (image.parent is not None and
                image.parent.status in STATUS_ERRORS):
            self.logger.error('Parent image error\'d with message "%s"',
                              image.parent.status)
            image.status = STATUS_PARENT_ERROR
            return

        image.status = STATUS_BUILDING
        self.logger.info('Building')

        if image.source and 'source' in image.source:
            self.process_source(image, image.source)
            if image.status in STATUS_ERRORS:
                return

        try:
            plugins_am = make_an_archive(image.plugins, 'plugins')
        except ArchivingError:
            self.logger.error(
                "Failed turning any plugins into a plugins archive")
            return
        else:
            self.logger.debug(
                "Turned %s plugins into plugins archive",
                plugins_am)
        try:
            additions_am = make_an_archive(image.additions, 'additions')
        except ArchivingError:
            self.logger.error(
                "Failed turning any additions into a additions archive")
            return
        else:
            self.logger.debug(
                "Turned %s additions into additions archive",
                additions_am)

        # Pull the latest image for the base distro only
        pull = self.conf.pull if image.parent is None else False

        buildargs = self.update_buildargs()
        try:
            for response in self.dc.build(path=image.path,
                                          tag=image.canonical_name,
                                          nocache=not self.conf.cache,
                                          rm=True,
                                          pull=pull,
                                          forcerm=self.forcerm,
                                          buildargs=buildargs):
                stream = json.loads(response.decode('utf-8'))
                if 'stream' in stream:
                    for line in stream['stream'].split('\n'):
                        if line:
                            self.logger.info('%s', line)
                if 'errorDetail' in stream:
                    image.status = STATUS_ERROR
                    self.logger.error('Error\'d with the following message')
                    for line in stream['errorDetail']['message'].split('\n'):
                        if line:
                            self.logger.error('%s', line)
                    return
        except docker.errors.DockerException:
            image.status = STATUS_ERROR
            self.logger.exception('Unknown docker error when building')
        except Exception:
            image.status = STATUS_ERROR
            self.logger.exception('Unknown error when building')
        else:
            image.status = STATUS_BUILT
            self.logger.info('Built')


class WorkerThread(threading.Thread):
    """Thread that executes tasks until the queue provides a tombstone."""

    #: Object to be put on worker queues to get them to die.
    tombstone = object()

    def __init__(self, conf, queue):
        super(WorkerThread, self).__init__()
        self.queue = queue
        self.conf = conf
        self.should_stop = False

    def run(self):
        while not self.should_stop:
            task = self.queue.get()
            if task is self.tombstone:
                # Ensure any other threads also get the tombstone.
                self.queue.put(task)
                break
            try:
                for attempt in six.moves.range(self.conf.retries + 1):
                    if self.should_stop:
                        break
                    LOG.info("Attempt number: %s to run task: %s ",
                             attempt + 1, task.name)
                    try:
                        task.run()
                        if task.success:
                            break
                    except Exception:
                        LOG.exception('Unhandled error when running %s',
                                      task.name)
                    # try again...
                    task.reset()
                if task.success and not self.should_stop:
                    for next_task in task.followups:
                        LOG.info('Added next task %s to queue',
                                 next_task.name)
                        self.queue.put(next_task)
            finally:
                self.queue.task_done()


class KollaWorker(object):

    def __init__(self, conf):
        self.conf = conf
        self.images_dir = self._get_images_dir()
        self.registry = conf.registry
        if self.registry:
            self.namespace = self.registry + '/' + conf.namespace
        else:
            self.namespace = conf.namespace
        self.base = conf.base
        self.base_tag = conf.base_tag
        self.install_type = conf.install_type
        self.tag = conf.tag
        self.base_arch = conf.base_arch
        self.images = list()
        rpm_setup_config = ([repo_file for repo_file in
                             conf.rpm_setup_config if repo_file is not None])
        self.rpm_setup = self.build_rpm_setup(rpm_setup_config)

        rh_base = ['centos', 'oraclelinux', 'rhel']
        rh_type = ['source', 'binary', 'rdo', 'rhos']
        deb_base = ['ubuntu', 'debian']
        deb_type = ['source', 'binary']

        if not ((self.base in rh_base and self.install_type in rh_type) or
                (self.base in deb_base and self.install_type in deb_type)):
            raise exception.KollaMismatchBaseTypeException(
                '{} is unavailable for {}'.format(self.install_type, self.base)
            )

        if self.install_type == 'binary':
            self.install_metatype = 'rdo'
        elif self.install_type == 'source':
            self.install_metatype = 'mixed'
        elif self.install_type == 'rdo':
            self.install_type = 'binary'
            self.install_metatype = 'rdo'
        elif self.install_type == 'rhos':
            self.install_type = 'binary'
            self.install_metatype = 'rhos'
        else:
            raise exception.KollaUnknownBuildTypeException(
                'Unknown install type'
            )

        self.image_prefix = self.base + '-' + self.install_type + '-'

        self.regex = conf.regex
        self.image_statuses_bad = dict()
        self.image_statuses_good = dict()
        self.image_statuses_unmatched = dict()
        self.image_statuses_skipped = dict()
        self.maintainer = conf.maintainer

    def _get_images_dir(self):
        possible_paths = (
            PROJECT_ROOT,
            os.path.join(sys.prefix, 'share/kolla'),
            os.path.join(sys.prefix, 'local/share/kolla'),
            # NOTE(zioproto): When Kolla is used within a snap, the env var
            #                 $SNAP is the directory where the snap is mounted.
            #                 https://github.com/openstack/snap-kolla
            #                 More info in snap packages https://snapcraft.io
            os.path.join(os.environ.get('SNAP', ''), 'share/kolla'))

        for path in possible_paths:
            image_path = os.path.join(path, 'docker')
            # NOTE(SamYaple): We explicty check for the base folder to ensure
            #                 this is the correct path
            # TODO(SamYaple): Improve this to make this safer
            if os.path.exists(os.path.join(image_path, 'base')):
                LOG.info('Found the docker image folder at %s', image_path)
                return image_path
        else:
            raise exception.KollaDirNotFoundException('Image dir can not '
                                                      'be found')

    def build_rpm_setup(self, rpm_setup_config):
        """Generates a list of docker commands based on provided configuration.

        :param rpm_setup_config: A list of .rpm or .repo paths or URLs
                                 (can be empty)
        :return: A list of docker commands
        """
        rpm_setup = list()

        for config in rpm_setup_config:
            if config.endswith('.rpm'):
                # RPM files can be installed with yum from file path or url
                cmd = "RUN yum -y install {}".format(config)
            elif config.endswith('.repo'):
                if config.startswith('http'):
                    # Curl http://url/etc.repo to /etc/yum.repos.d/etc.repo
                    name = config.split('/')[-1]
                    cmd = "RUN curl -L {} -o /etc/yum.repos.d/{}".format(
                        config, name)
                else:
                    # Copy .repo file from filesystem
                    cmd = "COPY {} /etc/yum.repos.d/".format(config)
            elif not config:
                cmd = ''
            else:
                raise exception.KollaRpmSetupUnknownConfig(
                    'RPM setup must be provided as .rpm or .repo files.'
                    ' Attempted configuration was {}'.format(config)
                )

            rpm_setup.append(cmd)

        return rpm_setup

    def copy_apt_files(self):
        if self.conf.apt_sources_list:
            shutil.copyfile(
                self.conf.apt_sources_list,
                os.path.join(self.working_dir, "base", "sources.list")
            )

        if self.conf.apt_preferences:
            shutil.copyfile(
                self.conf.apt_preferences,
                os.path.join(self.working_dir, "base", "apt_preferences")
            )

    def setup_working_dir(self):
        """Creates a working directory for use while building."""
        if self.conf.work_dir:
            self.working_dir = os.path.join(self.conf.work_dir, 'docker')
        else:
            ts = time.time()
            ts = datetime.datetime.fromtimestamp(ts).strftime(
                '%Y-%m-%d_%H-%M-%S_')
            self.temp_dir = tempfile.mkdtemp(prefix='kolla-' + ts)
            self.working_dir = os.path.join(self.temp_dir, 'docker')
        shutil.copytree(self.images_dir, self.working_dir)
        self.copy_apt_files()
        LOG.debug('Created working dir: %s', self.working_dir)

    def set_time(self):
        for root, dirs, files in os.walk(self.working_dir):
            for file_ in files:
                os.utime(os.path.join(root, file_), (0, 0))
            for dir_ in dirs:
                os.utime(os.path.join(root, dir_), (0, 0))
        LOG.debug('Set atime and mtime to 0 for all content in working dir')

    def _get_filters(self):
        filters = {
            'customizable': jinja_filters.customizable,
        }
        return filters

    def _get_methods(self):
        """Mapping of available Jinja methods.

        return a dictionary that maps available function names and their
        corresponding python methods to make them available in jinja templates
        """

        return {
            'debian_package_install': jinja_methods.debian_package_install,
        }

    def get_users(self):
        all_sections = (set(six.iterkeys(self.conf._groups)) |
                        set(self.conf.list_all_sections()))
        ret = dict()
        for section in all_sections:
            match = re.search('^.*-user$', section)
            if match:
                user = self.conf[match.group(0)]
                ret[match.group(0)[:-5]] = {
                    'uid': user.uid,
                    'gid': user.gid,
                }
        return ret

    def create_dockerfiles(self):
        kolla_version = version.version_info.cached_version_string()
        supported_distro_release = common_config.DISTRO_RELEASE.get(
            self.base)
        for path in self.docker_build_paths:
            template_name = "Dockerfile.j2"
            image_name = path.split("/")[-1]
            ts = time.time()
            build_date = datetime.datetime.fromtimestamp(ts).strftime(
                '%Y%m%d')
            values = {'base_distro': self.base,
                      'base_image': self.conf.base_image,
                      'base_distro_tag': self.base_tag,
                      'base_arch': self.base_arch,
                      'supported_distro_release': supported_distro_release,
                      'install_metatype': self.install_metatype,
                      'image_prefix': self.image_prefix,
                      'install_type': self.install_type,
                      'namespace': self.namespace,
                      'tag': self.tag,
                      'maintainer': self.maintainer,
                      'kolla_version': kolla_version,
                      'image_name': image_name,
                      'users': self.get_users(),
                      'rpm_setup': self.rpm_setup,
                      'build_date': build_date}
            env = jinja2.Environment(  # nosec: not used to render HTML
                loader=jinja2.FileSystemLoader(self.working_dir))
            env.filters.update(self._get_filters())
            env.globals.update(self._get_methods())
            tpl_path = os.path.join(
                os.path.relpath(path, self.working_dir),
                template_name)

            template = env.get_template(tpl_path)
            if self.conf.template_override:
                tpl_dict = self._merge_overrides(self.conf.template_override)
                template_name = os.path.basename(tpl_dict.keys()[0])
                values['parent_template'] = template
                env = jinja2.Environment(  # nosec: not used to render HTML
                    loader=jinja2.DictLoader(tpl_dict))
                env.filters.update(self._get_filters())
                env.globals.update(self._get_methods())
                template = env.get_template(template_name)
            content = template.render(values)
            content_path = os.path.join(path, 'Dockerfile')
            with open(content_path, 'w') as f:
                LOG.debug("Rendered %s into:", tpl_path)
                LOG.debug(content)
                f.write(content)
                LOG.debug("Wrote it to %s", content_path)

    def _merge_overrides(self, overrides):
        tpl_name = os.path.basename(overrides[0])
        with open(overrides[0], 'r') as f:
            tpl_content = f.read()
        for override in overrides[1:]:
            with open(override, 'r') as f:
                cont = f.read()
            # Remove extends header
            cont = re.sub(r'.*\{\%.*extends.*\n', '', cont)
            tpl_content += cont
        return {tpl_name: tpl_content}

    def find_dockerfiles(self):
        """Recursive search for Dockerfiles in the working directory."""
        self.docker_build_paths = list()
        path = self.working_dir
        filename = 'Dockerfile.j2'

        for root, dirs, names in os.walk(path):
            if filename in names:
                self.docker_build_paths.append(root)
                LOG.debug('Found %s', root.split(self.working_dir)[1])

        LOG.debug('Found %d Dockerfiles', len(self.docker_build_paths))

    def cleanup(self):
        """Remove temp files."""
        if not self.conf.work_dir:
            shutil.rmtree(self.temp_dir)

    def filter_images(self):
        """Filter which images to build."""
        filter_ = list()

        if self.regex:
            filter_ += self.regex
        elif self.conf.profile:
            for profile in self.conf.profile:
                if profile not in self.conf.profiles:
                    self.conf.register_opt(cfg.ListOpt(profile,
                                                       default=[]),
                                           'profiles')
                if len(self.conf.profiles[profile]) == 0:
                    msg = 'Profile: {} does not exist'.format(profile)
                    raise ValueError(msg)
                else:
                    filter_ += self.conf.profiles[profile]

        if filter_:
            patterns = re.compile(r"|".join(filter_).join('()'))
            for image in self.images:
                if image.status in (STATUS_MATCHED, STATUS_SKIPPED):
                    continue
                if re.search(patterns, image.name):
                    image.status = STATUS_MATCHED
                    while (image.parent is not None and
                           image.parent.status not in (STATUS_MATCHED,
                                                       STATUS_SKIPPED)):
                        image = image.parent
                        if self.conf.skip_parents:
                            image.status = STATUS_SKIPPED
                        else:
                            image.status = STATUS_MATCHED
                        LOG.debug('Image %s matched regex', image.name)
                else:
                    image.status = STATUS_UNMATCHED
        else:
            for image in self.images:
                image.status = STATUS_MATCHED

    def summary(self):
        """Walk the dictionary of images statuses and print results."""
        # For debug we print the logs again if the image error'd. This is to
        # help us debug and it will be extra helpful in the gate.
        for image in self.images:
            if image.status in STATUS_ERRORS:
                LOG.debug("Image %s failed", image.name)

        self.get_image_statuses()
        results = {
            'built': [],
            'failed': [],
            'not_matched': [],
            'skipped': [],
        }

        if self.image_statuses_good:
            LOG.info("=========================")
            LOG.info("Successfully built images")
            LOG.info("=========================")
            for name in sorted(self.image_statuses_good.keys()):
                LOG.info(name)
                results['built'].append({
                    'name': name,
                })

        if self.image_statuses_bad:
            LOG.info("===========================")
            LOG.info("Images that failed to build")
            LOG.info("===========================")
            for name, status in sorted(self.image_statuses_bad.items()):
                LOG.error('%s Failed with status: %s', name, status)
                results['failed'].append({
                    'name': name,
                    'status': status,
                })

        if self.image_statuses_unmatched:
            LOG.debug("=====================================")
            LOG.debug("Images not matched for build by regex")
            LOG.debug("=====================================")
            for name in self.image_statuses_unmatched.keys():
                LOG.debug(name)
                results['not_matched'].append({
                    'name': name,
                })

        if self.image_statuses_skipped:
            LOG.debug("=====================================")
            LOG.debug("Images skipped due to --skip-parents")
            LOG.debug("=====================================")
            for name in self.image_statuses_skipped.keys():
                LOG.debug(name)
                results['skipped'].append({
                    'name': name,
                })

        return results

    def get_image_statuses(self):
        if any([self.image_statuses_bad,
                self.image_statuses_good,
                self.image_statuses_unmatched,
                self.image_statuses_skipped]):
            return (self.image_statuses_bad,
                    self.image_statuses_good,
                    self.image_statuses_unmatched,
                    self.image_statuses_skipped)
        for image in self.images:
            if image.status == STATUS_BUILT:
                self.image_statuses_good[image.name] = image.status
            elif image.status == STATUS_UNMATCHED:
                self.image_statuses_unmatched[image.name] = image.status
            elif image.status == STATUS_SKIPPED:
                self.image_statuses_skipped[image.name] = image.status
            else:
                self.image_statuses_bad[image.name] = image.status
        return (self.image_statuses_bad,
                self.image_statuses_good,
                self.image_statuses_unmatched,
                self.image_statuses_skipped)

    def build_image_list(self):
        def process_source_installation(image, section):
            installation = dict()
            # NOTE(jeffrey4l): source is not needed when the type is None
            if self.conf._get('type', self.conf._get_group(section)) is None:
                if image.parent_name is None:
                    LOG.debug('No source location found in section %s',
                              section)
            else:
                installation['type'] = self.conf[section]['type']
                installation['source'] = self.conf[section]['location']
                installation['name'] = section
                if installation['type'] == 'git':
                    installation['reference'] = self.conf[section]['reference']
            return installation

        all_sections = (set(six.iterkeys(self.conf._groups)) |
                        set(self.conf.list_all_sections()))

        for path in self.docker_build_paths:
            # Reading parent image name
            with open(os.path.join(path, 'Dockerfile')) as f:
                content = f.read()

            image_name = os.path.basename(path)
            canonical_name = (self.namespace + '/' + self.image_prefix +
                              image_name + ':' + self.tag)
            parent_search_pattern = re.compile(r'^FROM.*$', re.MULTILINE)
            match = re.search(parent_search_pattern, content)
            if match:
                parent_name = match.group(0).split(' ')[1]
            else:
                parent_name = ''
            del match
            image = Image(image_name, canonical_name, path,
                          parent_name=parent_name,
                          logger=make_a_logger(self.conf, image_name))

            if self.install_type == 'source':
                # NOTE(jeffrey4l): register the opts if the section didn't
                # register in the kolla/common/config.py file
                if image.name not in self.conf._groups:
                    self.conf.register_opts(common_config.get_source_opts(),
                                            image.name)
                image.source = process_source_installation(image, image.name)
                for plugin in [match.group(0) for match in
                               (re.search('^{}-plugin-.+'.format(image.name),
                                          section) for section in
                                all_sections) if match]:
                    try:
                        self.conf.register_opts(
                            common_config.get_source_opts(),
                            plugin
                        )
                    except cfg.DuplicateOptError:
                        LOG.debug('Plugin %s already registered in config',
                                  plugin)
                    image.plugins.append(
                        process_source_installation(image, plugin))
                for addition in [
                    match.group(0) for match in
                    (re.search('^{}-additions-.+'.format(image.name),
                     section) for section in all_sections) if match]:
                    try:
                        self.conf.register_opts(
                            common_config.get_source_opts(),
                            addition
                        )
                    except cfg.DuplicateOptError:
                        LOG.debug('Addition %s already registered in config',
                                  addition)
                    image.additions.append(
                        process_source_installation(image, addition))

            self.images.append(image)

    def save_dependency(self, to_file):
        try:
            import graphviz
        except ImportError:
            LOG.error('"graphviz" is required for save dependency')
            raise
        dot = graphviz.Digraph(comment='Docker Images Dependency')
        dot.body.extend(['rankdir=LR'])
        for image in self.images:
            if image.status not in [STATUS_MATCHED]:
                continue
            dot.node(image.name)
            if image.parent is not None:
                dot.edge(image.parent.name, image.name)

        with open(to_file, 'w') as f:
            f.write(dot.source)

    def list_images(self):
        for count, image in enumerate([
            image for image in self.images if image.status == STATUS_MATCHED
        ]):
            print(count + 1, ':', image.name)

    def list_dependencies(self):
        match = False
        for image in self.images:
            if image.status in [STATUS_MATCHED]:
                match = True
            if image.parent is None:
                base = image
        if not match:
            print('Nothing matched!')
            return

        def list_children(images, ancestry):
            children = six.next(iter(ancestry.values()))
            for image in images:
                if image.status not in [STATUS_MATCHED]:
                    continue
                if not image.children:
                    children.append(image.name)
                else:
                    newparent = {image.name: []}
                    children.append(newparent)
                    list_children(image.children, newparent)

        ancestry = {base.name: []}
        list_children(base.children, ancestry)
        pprint.pprint(ancestry)

    def find_parents(self):
        """Associate all images with parents and children."""
        sort_images = dict()

        for image in self.images:
            sort_images[image.canonical_name] = image

        for parent_name, parent in sort_images.items():
            for image in sort_images.values():
                if image.parent_name == parent_name:
                    parent.children.append(image)
                    image.parent = parent

    def build_queue(self, push_queue):
        """Organizes Queue list.

        Return a list of Queues that have been organized into a hierarchy
        based on dependencies
        """
        self.build_image_list()
        self.find_parents()
        self.filter_images()

        queue = six.moves.queue.Queue()

        for image in self.images:
            if image.status == STATUS_UNMATCHED:
                # Don't bother queuing up build tasks for things that
                # were not matched in the first place... (not worth the
                # effort to run them, if they won't be used anyway).
                continue
            if image.parent is None:
                queue.put(BuildTask(self.conf, image, push_queue))
                LOG.info('Added image %s to queue', image.name)

        return queue


def run_build():
    """Build container images.

    :return: A 3-tuple containing bad, good, and unmatched container image
    status dicts, or None if no images were built.
    """
    conf = cfg.ConfigOpts()
    common_config.parse(conf, sys.argv[1:], prog='kolla-build')

    if conf.debug:
        LOG.setLevel(logging.DEBUG)

    kolla = KollaWorker(conf)
    kolla.setup_working_dir()
    kolla.find_dockerfiles()
    kolla.create_dockerfiles()

    if conf.template_only:
        LOG.info('Dockerfiles are generated in %s', kolla.working_dir)
        return

    # We set the atime and mtime to 0 epoch to preserve allow the Docker cache
    # to work like we want. A different size or hash will still force a rebuild
    kolla.set_time()

    if conf.save_dependency:
        kolla.build_image_list()
        kolla.find_parents()
        kolla.filter_images()
        kolla.save_dependency(conf.save_dependency)
        LOG.info('Docker images dependency are saved in %s',
                 conf.save_dependency)
        return
    if conf.list_images:
        kolla.build_image_list()
        kolla.find_parents()
        kolla.filter_images()
        kolla.list_images()
        return
    if conf.list_dependencies:
        kolla.build_image_list()
        kolla.find_parents()
        kolla.filter_images()
        kolla.list_dependencies()
        return

    push_queue = six.moves.queue.Queue()
    queue = kolla.build_queue(push_queue)
    workers = []

    with join_many(workers):
        try:
            for x in six.moves.range(conf.threads):
                worker = WorkerThread(conf, queue)
                worker.setDaemon(True)
                worker.start()
                workers.append(worker)

            for x in six.moves.range(conf.push_threads):
                worker = WorkerThread(conf, push_queue)
                worker.setDaemon(True)
                worker.start()
                workers.append(worker)

            # sleep until queue is empty
            while queue.unfinished_tasks or push_queue.unfinished_tasks:
                time.sleep(3)

            # ensure all threads exited happily
            push_queue.put(WorkerThread.tombstone)
            queue.put(WorkerThread.tombstone)
        except KeyboardInterrupt:
            for w in workers:
                w.should_stop = True
            push_queue.put(WorkerThread.tombstone)
            queue.put(WorkerThread.tombstone)
            raise

    results = kolla.summary()
    kolla.cleanup()
    if conf.format == 'json':
        print(json.dumps(results))
    return kolla.get_image_statuses()