summaryrefslogtreecommitdiff
path: root/tests/unittests/sources/test_oracle.py
blob: b7b169526fc201e87bf6e811456c9f04e14d75cb (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
# This file is part of cloud-init. See LICENSE file for license information.

import base64
import copy
import json
from contextlib import ExitStack
from unittest import mock

import pytest

from cloudinit.sources import DataSourceOracle as oracle
from cloudinit.sources import NetworkConfigSource
from cloudinit.sources.DataSourceOracle import OpcMetadata
from cloudinit.url_helper import UrlError
from tests.unittests import helpers as test_helpers

DS_PATH = "cloudinit.sources.DataSourceOracle"

# `curl -L http://169.254.169.254/opc/v1/vnics/` on a Oracle Bare Metal Machine
# with a secondary VNIC attached (vnicId truncated for Python line length)
OPC_BM_SECONDARY_VNIC_RESPONSE = """\
[ {
  "vnicId" : "ocid1.vnic.oc1.phx.abyhqljtyvcucqkhdqmgjszebxe4hrb!!TRUNCATED||",
  "privateIp" : "10.0.0.8",
  "vlanTag" : 0,
  "macAddr" : "90:e2:ba:d4:f1:68",
  "virtualRouterIp" : "10.0.0.1",
  "subnetCidrBlock" : "10.0.0.0/24",
  "nicIndex" : 0
}, {
  "vnicId" : "ocid1.vnic.oc1.phx.abyhqljtfmkxjdy2sqidndiwrsg63zf!!TRUNCATED||",
  "privateIp" : "10.0.4.5",
  "vlanTag" : 1,
  "macAddr" : "02:00:17:05:CF:51",
  "virtualRouterIp" : "10.0.4.1",
  "subnetCidrBlock" : "10.0.4.0/24",
  "nicIndex" : 0
} ]"""

# `curl -L http://169.254.169.254/opc/v1/vnics/` on a Oracle Virtual Machine
# with a secondary VNIC attached
OPC_VM_SECONDARY_VNIC_RESPONSE = """\
[ {
  "vnicId" : "ocid1.vnic.oc1.phx.abyhqljtch72z5pd76cc2636qeqh7z_truncated",
  "privateIp" : "10.0.0.230",
  "vlanTag" : 1039,
  "macAddr" : "02:00:17:05:D1:DB",
  "virtualRouterIp" : "10.0.0.1",
  "subnetCidrBlock" : "10.0.0.0/24"
}, {
  "vnicId" : "ocid1.vnic.oc1.phx.abyhqljt4iew3gwmvrwrhhf3bp5drj_truncated",
  "privateIp" : "10.0.0.231",
  "vlanTag" : 1041,
  "macAddr" : "00:00:17:02:2B:B1",
  "virtualRouterIp" : "10.0.0.1",
  "subnetCidrBlock" : "10.0.0.0/24"
} ]"""


# Fetched with `curl http://169.254.169.254/opc/v1/instance/` (and then
# truncated for line length)
OPC_V2_METADATA = """\
{
  "availabilityDomain" : "qIZq:PHX-AD-1",
  "faultDomain" : "FAULT-DOMAIN-2",
  "compartmentId" : "ocid1.tenancy.oc1..aaaaaaaao7f7cccogqrg5emjxkxmTRUNCATED",
  "displayName" : "instance-20200320-1400",
  "hostname" : "instance-20200320-1400",
  "id" : "ocid1.instance.oc1.phx.anyhqljtniwq6syc3nex55sep5w34qbwmw6TRUNCATED",
  "image" : "ocid1.image.oc1.phx.aaaaaaaagmkn4gdhvvx24kiahh2b2qchsicTRUNCATED",
  "metadata" : {
    "ssh_authorized_keys" : "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQ truncated",
    "user_data" : "IyEvYmluL3NoCnRvdWNoIC90bXAvZm9v"
  },
  "region" : "phx",
  "canonicalRegionName" : "us-phoenix-1",
  "ociAdName" : "phx-ad-3",
  "shape" : "VM.Standard2.1",
  "state" : "Running",
  "timeCreated" : 1584727285318,
  "agentConfig" : {
    "monitoringDisabled" : true,
    "managementDisabled" : true
  }
}"""

# Just a small meaningless change to differentiate the two metadatas
OPC_V1_METADATA = OPC_V2_METADATA.replace("ocid1.instance", "ocid2.instance")


@pytest.fixture
def metadata_version():
    return 2


@pytest.fixture
def oracle_ds(request, fixture_utils, paths, metadata_version):
    """
    Return an instantiated DataSourceOracle.

    This also performs the mocking required for the default test case:
        * ``_read_system_uuid`` returns something,
        * ``_is_platform_viable`` returns True,
        * ``_is_iscsi_root`` returns True (the simpler code path),
        * ``read_opc_metadata`` returns ``OPC_V1_METADATA``

    (This uses the paths fixture for the required helpers.Paths object, and the
    fixture_utils fixture for fetching markers.)
    """
    sys_cfg = fixture_utils.closest_marker_first_arg_or(
        request, "ds_sys_cfg", mock.MagicMock()
    )
    metadata = OpcMetadata(metadata_version, json.loads(OPC_V2_METADATA), None)
    with mock.patch(DS_PATH + "._read_system_uuid", return_value="someuuid"):
        with mock.patch(DS_PATH + "._is_platform_viable", return_value=True):
            with mock.patch(DS_PATH + "._is_iscsi_root", return_value=True):
                with mock.patch(
                    DS_PATH + ".read_opc_metadata",
                    return_value=metadata,
                ):
                    yield oracle.DataSourceOracle(
                        sys_cfg=sys_cfg,
                        distro=mock.Mock(),
                        paths=paths,
                    )


class TestDataSourceOracle:
    def test_platform_info(self, oracle_ds):
        assert "oracle" == oracle_ds.cloud_name
        assert "oracle" == oracle_ds.platform_type

    def test_subplatform_before_fetch(self, oracle_ds):
        assert "unknown" == oracle_ds.subplatform

    def test_platform_info_after_fetch(self, oracle_ds):
        oracle_ds._get_data()
        assert (
            "metadata (http://169.254.169.254/opc/v2/)"
            == oracle_ds.subplatform
        )

    @pytest.mark.parametrize("metadata_version", [1])
    def test_v1_platform_info_after_fetch(self, oracle_ds):
        oracle_ds._get_data()
        assert (
            "metadata (http://169.254.169.254/opc/v1/)"
            == oracle_ds.subplatform
        )

    def test_secondary_nics_disabled_by_default(self, oracle_ds):
        assert not oracle_ds.ds_cfg["configure_secondary_nics"]

    @pytest.mark.ds_sys_cfg(
        {"datasource": {"Oracle": {"configure_secondary_nics": True}}}
    )
    def test_sys_cfg_can_enable_configure_secondary_nics(self, oracle_ds):
        assert oracle_ds.ds_cfg["configure_secondary_nics"]


class TestIsPlatformViable(test_helpers.CiTestCase):
    @mock.patch(
        DS_PATH + ".dmi.read_dmi_data", return_value=oracle.CHASSIS_ASSET_TAG
    )
    def test_expected_viable(self, m_read_dmi_data):
        """System with known chassis tag is viable."""
        self.assertTrue(oracle._is_platform_viable())
        m_read_dmi_data.assert_has_calls([mock.call("chassis-asset-tag")])

    @mock.patch(DS_PATH + ".dmi.read_dmi_data", return_value=None)
    def test_expected_not_viable_dmi_data_none(self, m_read_dmi_data):
        """System without known chassis tag is not viable."""
        self.assertFalse(oracle._is_platform_viable())
        m_read_dmi_data.assert_has_calls([mock.call("chassis-asset-tag")])

    @mock.patch(DS_PATH + ".dmi.read_dmi_data", return_value="LetsGoCubs")
    def test_expected_not_viable_other(self, m_read_dmi_data):
        """System with unnown chassis tag is not viable."""
        self.assertFalse(oracle._is_platform_viable())
        m_read_dmi_data.assert_has_calls([mock.call("chassis-asset-tag")])


@mock.patch(
    "cloudinit.net.is_openvswitch_internal_interface",
    mock.Mock(return_value=False),
)
class TestNetworkConfigFromOpcImds:
    def test_no_secondary_nics_does_not_mutate_input(self, oracle_ds):
        oracle_ds._vnics_data = [{}]
        # We test this by using in a non-dict to ensure that no dict
        # operations are used; failure would be seen as exceptions
        oracle_ds._network_config = object()
        oracle_ds._add_network_config_from_opc_imds()

    def test_bare_metal_machine_skipped(self, oracle_ds, caplog):
        # nicIndex in the first entry indicates a bare metal machine
        oracle_ds._vnics_data = json.loads(OPC_BM_SECONDARY_VNIC_RESPONSE)
        # We test this by using a non-dict to ensure that no dict
        # operations are used
        oracle_ds._network_config = object()
        oracle_ds._add_network_config_from_opc_imds()
        assert "bare metal machine" in caplog.text

    def test_missing_mac_skipped(self, oracle_ds, caplog):
        oracle_ds._vnics_data = json.loads(OPC_VM_SECONDARY_VNIC_RESPONSE)

        oracle_ds._network_config = {
            "version": 1,
            "config": [{"primary": "nic"}],
        }
        with mock.patch(DS_PATH + ".get_interfaces_by_mac", return_value={}):
            oracle_ds._add_network_config_from_opc_imds()

        assert 1 == len(oracle_ds.network_config["config"])
        assert (
            "Interface with MAC 00:00:17:02:2b:b1 not found; skipping"
            in caplog.text
        )

    def test_missing_mac_skipped_v2(self, oracle_ds, caplog):
        oracle_ds._vnics_data = json.loads(OPC_VM_SECONDARY_VNIC_RESPONSE)

        oracle_ds._network_config = {
            "version": 2,
            "ethernets": {"primary": {"nic": {}}},
        }
        with mock.patch(DS_PATH + ".get_interfaces_by_mac", return_value={}):
            oracle_ds._add_network_config_from_opc_imds()

        assert 1 == len(oracle_ds.network_config["ethernets"])
        assert (
            "Interface with MAC 00:00:17:02:2b:b1 not found; skipping"
            in caplog.text
        )

    def test_secondary_nic(self, oracle_ds):
        oracle_ds._vnics_data = json.loads(OPC_VM_SECONDARY_VNIC_RESPONSE)
        oracle_ds._network_config = {
            "version": 1,
            "config": [{"primary": "nic"}],
        }
        mac_addr, nic_name = "00:00:17:02:2b:b1", "ens3"
        with mock.patch(
            DS_PATH + ".get_interfaces_by_mac",
            return_value={mac_addr: nic_name},
        ):
            oracle_ds._add_network_config_from_opc_imds()

        # The input is mutated
        assert 2 == len(oracle_ds.network_config["config"])

        secondary_nic_cfg = oracle_ds.network_config["config"][1]
        assert nic_name == secondary_nic_cfg["name"]
        assert "physical" == secondary_nic_cfg["type"]
        assert mac_addr == secondary_nic_cfg["mac_address"]
        assert 9000 == secondary_nic_cfg["mtu"]

        assert 1 == len(secondary_nic_cfg["subnets"])
        subnet_cfg = secondary_nic_cfg["subnets"][0]
        # These values are hard-coded in OPC_VM_SECONDARY_VNIC_RESPONSE
        assert "10.0.0.231" == subnet_cfg["address"]

    def test_secondary_nic_v2(self, oracle_ds):
        oracle_ds._vnics_data = json.loads(OPC_VM_SECONDARY_VNIC_RESPONSE)
        oracle_ds._network_config = {
            "version": 2,
            "ethernets": {"primary": {"nic": {}}},
        }
        mac_addr, nic_name = "00:00:17:02:2b:b1", "ens3"
        with mock.patch(
            DS_PATH + ".get_interfaces_by_mac",
            return_value={mac_addr: nic_name},
        ):
            oracle_ds._add_network_config_from_opc_imds()

        # The input is mutated
        assert 2 == len(oracle_ds.network_config["ethernets"])

        secondary_nic_cfg = oracle_ds.network_config["ethernets"]["ens3"]
        assert secondary_nic_cfg["dhcp4"] is False
        assert secondary_nic_cfg["dhcp6"] is False
        assert mac_addr == secondary_nic_cfg["match"]["macaddress"]
        assert 9000 == secondary_nic_cfg["mtu"]

        assert 1 == len(secondary_nic_cfg["addresses"])
        # These values are hard-coded in OPC_VM_SECONDARY_VNIC_RESPONSE
        assert "10.0.0.231" == secondary_nic_cfg["addresses"][0]


class TestNetworkConfigFiltersNetFailover(test_helpers.CiTestCase):
    def setUp(self):
        super(TestNetworkConfigFiltersNetFailover, self).setUp()
        self.add_patch(
            DS_PATH + ".get_interfaces_by_mac", "m_get_interfaces_by_mac"
        )
        self.add_patch(DS_PATH + ".is_netfail_master", "m_netfail_master")

    def test_ignore_bogus_network_config(self):
        netcfg = {"something": "here"}
        passed_netcfg = copy.copy(netcfg)
        oracle._ensure_netfailover_safe(passed_netcfg)
        self.assertEqual(netcfg, passed_netcfg)

    def test_ignore_network_config_unknown_versions(self):
        netcfg = {"something": "here", "version": 3}
        passed_netcfg = copy.copy(netcfg)
        oracle._ensure_netfailover_safe(passed_netcfg)
        self.assertEqual(netcfg, passed_netcfg)

    def test_checks_v1_type_physical_interfaces(self):
        mac_addr, nic_name = "00:00:17:02:2b:b1", "ens3"
        self.m_get_interfaces_by_mac.return_value = {
            mac_addr: nic_name,
        }
        netcfg = {
            "version": 1,
            "config": [
                {
                    "type": "physical",
                    "name": nic_name,
                    "mac_address": mac_addr,
                    "subnets": [{"type": "dhcp4"}],
                }
            ],
        }
        passed_netcfg = copy.copy(netcfg)
        self.m_netfail_master.return_value = False
        oracle._ensure_netfailover_safe(passed_netcfg)
        self.assertEqual(netcfg, passed_netcfg)
        self.assertEqual(
            [mock.call(nic_name)], self.m_netfail_master.call_args_list
        )

    def test_checks_v1_skips_non_phys_interfaces(self):
        mac_addr, nic_name = "00:00:17:02:2b:b1", "bond0"
        self.m_get_interfaces_by_mac.return_value = {
            mac_addr: nic_name,
        }
        netcfg = {
            "version": 1,
            "config": [
                {
                    "type": "bond",
                    "name": nic_name,
                    "mac_address": mac_addr,
                    "subnets": [{"type": "dhcp4"}],
                }
            ],
        }
        passed_netcfg = copy.copy(netcfg)
        oracle._ensure_netfailover_safe(passed_netcfg)
        self.assertEqual(netcfg, passed_netcfg)
        self.assertEqual(0, self.m_netfail_master.call_count)

    def test_removes_master_mac_property_v1(self):
        nic_master, mac_master = "ens3", self.random_string()
        nic_other, mac_other = "ens7", self.random_string()
        nic_extra, mac_extra = "enp0s1f2", self.random_string()
        self.m_get_interfaces_by_mac.return_value = {
            mac_master: nic_master,
            mac_other: nic_other,
            mac_extra: nic_extra,
        }
        netcfg = {
            "version": 1,
            "config": [
                {
                    "type": "physical",
                    "name": nic_master,
                    "mac_address": mac_master,
                },
                {
                    "type": "physical",
                    "name": nic_other,
                    "mac_address": mac_other,
                },
                {
                    "type": "physical",
                    "name": nic_extra,
                    "mac_address": mac_extra,
                },
            ],
        }

        def _is_netfail_master(iface):
            if iface == "ens3":
                return True
            return False

        self.m_netfail_master.side_effect = _is_netfail_master
        expected_cfg = {
            "version": 1,
            "config": [
                {"type": "physical", "name": nic_master},
                {
                    "type": "physical",
                    "name": nic_other,
                    "mac_address": mac_other,
                },
                {
                    "type": "physical",
                    "name": nic_extra,
                    "mac_address": mac_extra,
                },
            ],
        }
        oracle._ensure_netfailover_safe(netcfg)
        self.assertEqual(expected_cfg, netcfg)

    def test_checks_v2_type_ethernet_interfaces(self):
        mac_addr, nic_name = "00:00:17:02:2b:b1", "ens3"
        self.m_get_interfaces_by_mac.return_value = {
            mac_addr: nic_name,
        }
        netcfg = {
            "version": 2,
            "ethernets": {
                nic_name: {
                    "dhcp4": True,
                    "critical": True,
                    "set-name": nic_name,
                    "match": {"macaddress": mac_addr},
                }
            },
        }
        passed_netcfg = copy.copy(netcfg)
        self.m_netfail_master.return_value = False
        oracle._ensure_netfailover_safe(passed_netcfg)
        self.assertEqual(netcfg, passed_netcfg)
        self.assertEqual(
            [mock.call(nic_name)], self.m_netfail_master.call_args_list
        )

    def test_skips_v2_non_ethernet_interfaces(self):
        mac_addr, nic_name = "00:00:17:02:2b:b1", "wlps0"
        self.m_get_interfaces_by_mac.return_value = {
            mac_addr: nic_name,
        }
        netcfg = {
            "version": 2,
            "wifis": {
                nic_name: {
                    "dhcp4": True,
                    "critical": True,
                    "set-name": nic_name,
                    "match": {"macaddress": mac_addr},
                }
            },
        }
        passed_netcfg = copy.copy(netcfg)
        oracle._ensure_netfailover_safe(passed_netcfg)
        self.assertEqual(netcfg, passed_netcfg)
        self.assertEqual(0, self.m_netfail_master.call_count)

    def test_removes_master_mac_property_v2(self):
        nic_master, mac_master = "ens3", self.random_string()
        nic_other, mac_other = "ens7", self.random_string()
        nic_extra, mac_extra = "enp0s1f2", self.random_string()
        self.m_get_interfaces_by_mac.return_value = {
            mac_master: nic_master,
            mac_other: nic_other,
            mac_extra: nic_extra,
        }
        netcfg = {
            "version": 2,
            "ethernets": {
                nic_extra: {
                    "dhcp4": True,
                    "set-name": nic_extra,
                    "match": {"macaddress": mac_extra},
                },
                nic_other: {
                    "dhcp4": True,
                    "set-name": nic_other,
                    "match": {"macaddress": mac_other},
                },
                nic_master: {
                    "dhcp4": True,
                    "set-name": nic_master,
                    "match": {"macaddress": mac_master},
                },
            },
        }

        def _is_netfail_master(iface):
            if iface == "ens3":
                return True
            return False

        self.m_netfail_master.side_effect = _is_netfail_master

        expected_cfg = {
            "version": 2,
            "ethernets": {
                nic_master: {"dhcp4": True, "match": {"name": nic_master}},
                nic_extra: {
                    "dhcp4": True,
                    "set-name": nic_extra,
                    "match": {"macaddress": mac_extra},
                },
                nic_other: {
                    "dhcp4": True,
                    "set-name": nic_other,
                    "match": {"macaddress": mac_other},
                },
            },
        }
        oracle._ensure_netfailover_safe(netcfg)
        import pprint

        pprint.pprint(netcfg)
        print("---- ^^ modified ^^ ---- vv original vv ----")
        pprint.pprint(expected_cfg)
        self.assertEqual(expected_cfg, netcfg)


def _mock_v2_urls(httpretty):
    def instance_callback(request, uri, response_headers):
        print(response_headers)
        assert request.headers.get("Authorization") == "Bearer Oracle"
        return [200, response_headers, OPC_V2_METADATA]

    def vnics_callback(request, uri, response_headers):
        assert request.headers.get("Authorization") == "Bearer Oracle"
        return [200, response_headers, OPC_BM_SECONDARY_VNIC_RESPONSE]

    httpretty.register_uri(
        httpretty.GET,
        "http://169.254.169.254/opc/v2/instance/",
        body=instance_callback,
    )
    httpretty.register_uri(
        httpretty.GET,
        "http://169.254.169.254/opc/v2/vnics/",
        body=vnics_callback,
    )


def _mock_no_v2_urls(httpretty):
    httpretty.register_uri(
        httpretty.GET,
        "http://169.254.169.254/opc/v2/instance/",
        status=404,
    )
    httpretty.register_uri(
        httpretty.GET,
        "http://169.254.169.254/opc/v1/instance/",
        body=OPC_V1_METADATA,
    )
    httpretty.register_uri(
        httpretty.GET,
        "http://169.254.169.254/opc/v1/vnics/",
        body=OPC_BM_SECONDARY_VNIC_RESPONSE,
    )


class TestReadOpcMetadata:
    # See https://docs.pytest.org/en/stable/example
    # /parametrize.html#parametrizing-conditional-raising
    does_not_raise = ExitStack

    @mock.patch("cloudinit.url_helper.time.sleep", lambda _: None)
    @pytest.mark.parametrize(
        "version,setup_urls,instance_data,fetch_vnics,vnics_data",
        [
            (
                2,
                _mock_v2_urls,
                json.loads(OPC_V2_METADATA),
                True,
                json.loads(OPC_BM_SECONDARY_VNIC_RESPONSE),
            ),
            (2, _mock_v2_urls, json.loads(OPC_V2_METADATA), False, None),
            (
                1,
                _mock_no_v2_urls,
                json.loads(OPC_V1_METADATA),
                True,
                json.loads(OPC_BM_SECONDARY_VNIC_RESPONSE),
            ),
            (1, _mock_no_v2_urls, json.loads(OPC_V1_METADATA), False, None),
        ],
    )
    def test_metadata_returned(
        self,
        version,
        setup_urls,
        instance_data,
        fetch_vnics,
        vnics_data,
        httpretty,
    ):
        setup_urls(httpretty)
        metadata = oracle.read_opc_metadata(fetch_vnics_data=fetch_vnics)

        assert version == metadata.version
        assert instance_data == metadata.instance_data
        assert vnics_data == metadata.vnics_data

    # No need to actually wait between retries in the tests
    @mock.patch("cloudinit.url_helper.time.sleep", lambda _: None)
    @pytest.mark.parametrize(
        "v2_failure_count,v1_failure_count,expected_body,expectation",
        [
            (1, 0, json.loads(OPC_V2_METADATA), does_not_raise()),
            (2, 0, json.loads(OPC_V2_METADATA), does_not_raise()),
            (3, 0, json.loads(OPC_V1_METADATA), does_not_raise()),
            (3, 1, json.loads(OPC_V1_METADATA), does_not_raise()),
            (3, 2, json.loads(OPC_V1_METADATA), does_not_raise()),
            (3, 3, None, pytest.raises(UrlError)),
        ],
    )
    def test_retries(
        self,
        v2_failure_count,
        v1_failure_count,
        expected_body,
        expectation,
        httpretty,
    ):
        v2_responses = [httpretty.Response("", status=404)] * v2_failure_count
        v2_responses.append(httpretty.Response(OPC_V2_METADATA))
        v1_responses = [httpretty.Response("", status=404)] * v1_failure_count
        v1_responses.append(httpretty.Response(OPC_V1_METADATA))

        httpretty.register_uri(
            httpretty.GET,
            "http://169.254.169.254/opc/v1/instance/",
            responses=v1_responses,
        )
        httpretty.register_uri(
            httpretty.GET,
            "http://169.254.169.254/opc/v2/instance/",
            responses=v2_responses,
        )
        with expectation:
            assert expected_body == oracle.read_opc_metadata().instance_data


class TestCommon_GetDataBehaviour:
    """This test class tests behaviour common to iSCSI and non-iSCSI root.

    It defines a fixture, parameterized_oracle_ds, which is used in all the
    tests herein to test that the commonly expected behaviour is the same with
    iSCSI root and without.

    (As non-iSCSI root behaviour is a superset of iSCSI root behaviour this
    class is implicitly also testing all iSCSI root behaviour so there is no
    separate class for that case.)
    """

    @pytest.fixture(params=[True, False])
    def parameterized_oracle_ds(self, request, oracle_ds):
        """oracle_ds parameterized for iSCSI and non-iSCSI root respectively"""
        is_iscsi_root = request.param
        with ExitStack() as stack:
            stack.enter_context(
                mock.patch(
                    DS_PATH + "._is_iscsi_root", return_value=is_iscsi_root
                )
            )
            if not is_iscsi_root:
                stack.enter_context(
                    mock.patch(DS_PATH + ".net.find_fallback_nic")
                )
                stack.enter_context(
                    mock.patch(DS_PATH + ".dhcp.EphemeralDHCPv4")
                )
            yield oracle_ds

    @mock.patch(
        DS_PATH + "._is_platform_viable", mock.Mock(return_value=False)
    )
    def test_false_if_platform_not_viable(
        self,
        parameterized_oracle_ds,
    ):
        assert not parameterized_oracle_ds._get_data()

    @pytest.mark.parametrize(
        "keyname,expected_value",
        (
            ("availability-zone", "phx-ad-3"),
            ("launch-index", 0),
            ("local-hostname", "instance-20200320-1400"),
            (
                "instance-id",
                "ocid1.instance.oc1.phx"
                ".anyhqljtniwq6syc3nex55sep5w34qbwmw6TRUNCATED",
            ),
            ("name", "instance-20200320-1400"),
            (
                "public_keys",
                "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQ truncated",
            ),
        ),
    )
    def test_metadata_keys_set_correctly(
        self,
        keyname,
        expected_value,
        parameterized_oracle_ds,
    ):
        assert parameterized_oracle_ds._get_data()
        assert expected_value == parameterized_oracle_ds.metadata[keyname]

    @pytest.mark.parametrize(
        "attribute_name,expected_value",
        [
            ("_crawled_metadata", json.loads(OPC_V2_METADATA)),
            (
                "userdata_raw",
                base64.b64decode(b"IyEvYmluL3NoCnRvdWNoIC90bXAvZm9v"),
            ),
            ("system_uuid", "my-test-uuid"),
        ],
    )
    @mock.patch(
        DS_PATH + "._read_system_uuid", mock.Mock(return_value="my-test-uuid")
    )
    def test_attributes_set_correctly(
        self,
        attribute_name,
        expected_value,
        parameterized_oracle_ds,
    ):
        assert parameterized_oracle_ds._get_data()
        assert expected_value == getattr(
            parameterized_oracle_ds, attribute_name
        )

    @pytest.mark.parametrize(
        "ssh_keys,expected_value",
        [
            # No SSH keys in metadata => no keys detected
            (None, []),
            # Empty SSH keys in metadata => no keys detected
            ("", []),
            # Single SSH key in metadata => single key detected
            ("ssh-rsa ... test@test", ["ssh-rsa ... test@test"]),
            # Multiple SSH keys in metadata => multiple keys detected
            (
                "ssh-rsa ... test@test\nssh-rsa ... test2@test2",
                ["ssh-rsa ... test@test", "ssh-rsa ... test2@test2"],
            ),
        ],
    )
    def test_public_keys_handled_correctly(
        self, ssh_keys, expected_value, parameterized_oracle_ds
    ):
        instance_data = json.loads(OPC_V1_METADATA)
        if ssh_keys is None:
            del instance_data["metadata"]["ssh_authorized_keys"]
        else:
            instance_data["metadata"]["ssh_authorized_keys"] = ssh_keys
        metadata = OpcMetadata(None, instance_data, None)
        with mock.patch(
            DS_PATH + ".read_opc_metadata",
            mock.Mock(return_value=metadata),
        ):
            assert parameterized_oracle_ds._get_data()
            assert (
                expected_value == parameterized_oracle_ds.get_public_ssh_keys()
            )

    def test_missing_user_data_handled_gracefully(
        self, parameterized_oracle_ds
    ):
        instance_data = json.loads(OPC_V1_METADATA)
        del instance_data["metadata"]["user_data"]
        metadata = OpcMetadata(None, instance_data, None)
        with mock.patch(
            DS_PATH + ".read_opc_metadata",
            mock.Mock(return_value=metadata),
        ):
            assert parameterized_oracle_ds._get_data()

        assert parameterized_oracle_ds.userdata_raw is None

    def test_missing_metadata_handled_gracefully(
        self, parameterized_oracle_ds
    ):
        instance_data = json.loads(OPC_V1_METADATA)
        del instance_data["metadata"]
        metadata = OpcMetadata(None, instance_data, None)
        with mock.patch(
            DS_PATH + ".read_opc_metadata",
            mock.Mock(return_value=metadata),
        ):
            assert parameterized_oracle_ds._get_data()

        assert parameterized_oracle_ds.userdata_raw is None
        assert [] == parameterized_oracle_ds.get_public_ssh_keys()


@mock.patch(DS_PATH + "._is_iscsi_root", lambda: False)
class TestNonIscsiRoot_GetDataBehaviour:
    @mock.patch(DS_PATH + ".dhcp.EphemeralDHCPv4")
    @mock.patch(DS_PATH + ".net.find_fallback_nic")
    def test_read_opc_metadata_called_with_ephemeral_dhcp(
        self, m_find_fallback_nic, m_EphemeralDHCPv4, oracle_ds
    ):
        in_context_manager = False

        def enter_context_manager():
            nonlocal in_context_manager
            in_context_manager = True

        def exit_context_manager(*args):
            nonlocal in_context_manager
            in_context_manager = False

        m_EphemeralDHCPv4.return_value.__enter__.side_effect = (
            enter_context_manager
        )
        m_EphemeralDHCPv4.return_value.__exit__.side_effect = (
            exit_context_manager
        )

        def assert_in_context_manager(**kwargs):
            assert in_context_manager
            return mock.MagicMock()

        with mock.patch(
            DS_PATH + ".read_opc_metadata",
            mock.Mock(side_effect=assert_in_context_manager),
        ):
            assert oracle_ds._get_data()

        assert [
            mock.call(
                iface=m_find_fallback_nic.return_value,
                connectivity_url_data={
                    "headers": {"Authorization": "Bearer Oracle"},
                    "url": "http://169.254.169.254/opc/v2/instance/",
                },
            )
        ] == m_EphemeralDHCPv4.call_args_list


@mock.patch(DS_PATH + ".get_interfaces_by_mac", lambda: {})
@mock.patch(DS_PATH + ".cmdline.read_initramfs_config")
class TestNetworkConfig:
    def test_network_config_cached(self, m_read_initramfs_config, oracle_ds):
        """.network_config should be cached"""
        assert 0 == m_read_initramfs_config.call_count
        oracle_ds.network_config  # pylint: disable=pointless-statement
        assert 1 == m_read_initramfs_config.call_count
        oracle_ds.network_config  # pylint: disable=pointless-statement
        assert 1 == m_read_initramfs_config.call_count

    def test_network_cmdline(self, m_read_initramfs_config, oracle_ds):
        """network_config should prefer initramfs config over fallback"""
        ncfg = {"version": 1, "config": [{"a": "b"}]}
        m_read_initramfs_config.return_value = copy.deepcopy(ncfg)

        assert ncfg == oracle_ds.network_config
        assert 0 == oracle_ds.distro.generate_fallback_config.call_count

    def test_network_fallback(self, m_read_initramfs_config, oracle_ds):
        """network_config should prefer initramfs config over fallback"""
        ncfg = {"version": 1, "config": [{"a": "b"}]}

        m_read_initramfs_config.return_value = None
        oracle_ds.distro.generate_fallback_config.return_value = copy.deepcopy(
            ncfg
        )

        assert ncfg == oracle_ds.network_config

    @pytest.mark.parametrize(
        "configure_secondary_nics,expect_secondary_nics",
        [(True, True), (False, False), (None, False)],
    )
    def test_secondary_nic_addition(
        self,
        m_read_initramfs_config,
        configure_secondary_nics,
        expect_secondary_nics,
        oracle_ds,
    ):
        """Test that _add_network_config_from_opc_imds is called as expected

        (configure_secondary_nics=None is used to test the default behaviour.)
        """
        m_read_initramfs_config.return_value = {"version": 1, "config": []}

        if configure_secondary_nics is not None:
            oracle_ds.ds_cfg[
                "configure_secondary_nics"
            ] = configure_secondary_nics

        def side_effect(self):
            self._network_config["secondary_added"] = mock.sentinel.needle

        oracle_ds._vnics_data = "DummyData"
        with mock.patch.object(
            oracle.DataSourceOracle,
            "_add_network_config_from_opc_imds",
            new=side_effect,
        ):
            was_secondary_added = "secondary_added" in oracle_ds.network_config
        assert expect_secondary_nics == was_secondary_added

    def test_secondary_nic_failure_isnt_blocking(
        self,
        m_read_initramfs_config,
        caplog,
        oracle_ds,
    ):
        oracle_ds.ds_cfg["configure_secondary_nics"] = True
        oracle_ds._vnics_data = "DummyData"

        with mock.patch.object(
            oracle.DataSourceOracle,
            "_add_network_config_from_opc_imds",
            side_effect=Exception(),
        ):
            network_config = oracle_ds.network_config
        assert network_config == m_read_initramfs_config.return_value
        assert "Failed to parse secondary network configuration" in caplog.text

    def test_ds_network_cfg_preferred_over_initramfs(self, _m):
        """Ensure that DS net config is preferred over initramfs config"""
        config_sources = oracle.DataSourceOracle.network_config_sources
        ds_idx = config_sources.index(NetworkConfigSource.DS)
        initramfs_idx = config_sources.index(NetworkConfigSource.INITRAMFS)
        assert ds_idx < initramfs_idx


# vi: ts=4 expandtab