summaryrefslogtreecommitdiffstats
path: root/pkg/container/docker_cli.go
blob: 82d3246638df8c7b0acb18612a920625ecec0194 (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
//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows || netbsd))

// This file is exact copy of https://github.com/docker/cli/blob/9ac8584acfd501c3f4da0e845e3a40ed15c85041/cli/command/container/opts.go
// appended with license information.
//
// docker/cli is licensed under the Apache License, Version 2.0.
// See DOCKER_LICENSE for the full license text.
//

//nolint:unparam,errcheck,depguard,deadcode,unused
package container

import (
	"bytes"
	"encoding/json"
	"fmt"
	"os"
	"path"
	"path/filepath"
	"reflect"
	"regexp"
	"strconv"
	"strings"
	"time"

	"github.com/docker/cli/cli/compose/loader"
	"github.com/docker/cli/opts"
	"github.com/docker/docker/api/types/container"
	mounttypes "github.com/docker/docker/api/types/mount"
	networktypes "github.com/docker/docker/api/types/network"
	"github.com/docker/docker/api/types/strslice"
	"github.com/docker/docker/api/types/versions"
	"github.com/docker/docker/errdefs"
	"github.com/docker/go-connections/nat"
	"github.com/pkg/errors"
	"github.com/sirupsen/logrus"
	"github.com/spf13/pflag"
)

var (
	deviceCgroupRuleRegexp = regexp.MustCompile(`^[acb] ([0-9]+|\*):([0-9]+|\*) [rwm]{1,3}$`)
)

// containerOptions is a data object with all the options for creating a container
type containerOptions struct {
	attach             opts.ListOpts
	volumes            opts.ListOpts
	tmpfs              opts.ListOpts
	mounts             opts.MountOpt
	blkioWeightDevice  opts.WeightdeviceOpt
	deviceReadBps      opts.ThrottledeviceOpt
	deviceWriteBps     opts.ThrottledeviceOpt
	links              opts.ListOpts
	aliases            opts.ListOpts
	linkLocalIPs       opts.ListOpts
	deviceReadIOps     opts.ThrottledeviceOpt
	deviceWriteIOps    opts.ThrottledeviceOpt
	env                opts.ListOpts
	labels             opts.ListOpts
	deviceCgroupRules  opts.ListOpts
	devices            opts.ListOpts
	gpus               opts.GpuOpts
	ulimits            *opts.UlimitOpt
	sysctls            *opts.MapOpts
	publish            opts.ListOpts
	expose             opts.ListOpts
	dns                opts.ListOpts
	dnsSearch          opts.ListOpts
	dnsOptions         opts.ListOpts
	extraHosts         opts.ListOpts
	volumesFrom        opts.ListOpts
	envFile            opts.ListOpts
	capAdd             opts.ListOpts
	capDrop            opts.ListOpts
	groupAdd           opts.ListOpts
	securityOpt        opts.ListOpts
	storageOpt         opts.ListOpts
	labelsFile         opts.ListOpts
	loggingOpts        opts.ListOpts
	privileged         bool
	pidMode            string
	utsMode            string
	usernsMode         string
	cgroupnsMode       string
	publishAll         bool
	stdin              bool
	tty                bool
	oomKillDisable     bool
	oomScoreAdj        int
	containerIDFile    string
	entrypoint         string
	hostname           string
	domainname         string
	memory             opts.MemBytes
	memoryReservation  opts.MemBytes
	memorySwap         opts.MemSwapBytes
	kernelMemory       opts.MemBytes
	user               string
	workingDir         string
	cpuCount           int64
	cpuShares          int64
	cpuPercent         int64
	cpuPeriod          int64
	cpuRealtimePeriod  int64
	cpuRealtimeRuntime int64
	cpuQuota           int64
	cpus               opts.NanoCPUs
	cpusetCpus         string
	cpusetMems         string
	blkioWeight        uint16
	ioMaxBandwidth     opts.MemBytes
	ioMaxIOps          uint64
	swappiness         int64
	netMode            opts.NetworkOpt
	macAddress         string
	ipv4Address        string
	ipv6Address        string
	ipcMode            string
	pidsLimit          int64
	restartPolicy      string
	readonlyRootfs     bool
	loggingDriver      string
	cgroupParent       string
	volumeDriver       string
	stopSignal         string
	stopTimeout        int
	isolation          string
	shmSize            opts.MemBytes
	noHealthcheck      bool
	healthCmd          string
	healthInterval     time.Duration
	healthTimeout      time.Duration
	healthStartPeriod  time.Duration
	healthRetries      int
	runtime            string
	autoRemove         bool
	init               bool

	Image string
	Args  []string
}

// addFlags adds all command line flags that will be used by parse to the FlagSet
func addFlags(flags *pflag.FlagSet) *containerOptions {
	copts := &containerOptions{
		aliases:           opts.NewListOpts(nil),
		attach:            opts.NewListOpts(validateAttach),
		blkioWeightDevice: opts.NewWeightdeviceOpt(opts.ValidateWeightDevice),
		capAdd:            opts.NewListOpts(nil),
		capDrop:           opts.NewListOpts(nil),
		dns:               opts.NewListOpts(opts.ValidateIPAddress),
		dnsOptions:        opts.NewListOpts(nil),
		dnsSearch:         opts.NewListOpts(opts.ValidateDNSSearch),
		deviceCgroupRules: opts.NewListOpts(validateDeviceCgroupRule),
		deviceReadBps:     opts.NewThrottledeviceOpt(opts.ValidateThrottleBpsDevice),
		deviceReadIOps:    opts.NewThrottledeviceOpt(opts.ValidateThrottleIOpsDevice),
		deviceWriteBps:    opts.NewThrottledeviceOpt(opts.ValidateThrottleBpsDevice),
		deviceWriteIOps:   opts.NewThrottledeviceOpt(opts.ValidateThrottleIOpsDevice),
		devices:           opts.NewListOpts(nil), // devices can only be validated after we know the server OS
		env:               opts.NewListOpts(opts.ValidateEnv),
		envFile:           opts.NewListOpts(nil),
		expose:            opts.NewListOpts(nil),
		extraHosts:        opts.NewListOpts(opts.ValidateExtraHost),
		groupAdd:          opts.NewListOpts(nil),
		labels:            opts.NewListOpts(opts.ValidateLabel),
		labelsFile:        opts.NewListOpts(nil),
		linkLocalIPs:      opts.NewListOpts(nil),
		links:             opts.NewListOpts(opts.ValidateLink),
		loggingOpts:       opts.NewListOpts(nil),
		publish:           opts.NewListOpts(nil),
		securityOpt:       opts.NewListOpts(nil),
		storageOpt:        opts.NewListOpts(nil),
		sysctls:           opts.NewMapOpts(nil, opts.ValidateSysctl),
		tmpfs:             opts.NewListOpts(nil),
		ulimits:           opts.NewUlimitOpt(nil),
		volumes:           opts.NewListOpts(nil),
		volumesFrom:       opts.NewListOpts(nil),
	}

	// General purpose flags
	flags.VarP(&copts.attach, "attach", "a", "Attach to STDIN, STDOUT or STDERR")
	flags.Var(&copts.deviceCgroupRules, "device-cgroup-rule", "Add a rule to the cgroup allowed devices list")
	flags.Var(&copts.devices, "device", "Add a host device to the container")
	flags.Var(&copts.gpus, "gpus", "GPU devices to add to the container ('all' to pass all GPUs)")
	flags.SetAnnotation("gpus", "version", []string{"1.40"})
	flags.VarP(&copts.env, "env", "e", "Set environment variables")
	flags.Var(&copts.envFile, "env-file", "Read in a file of environment variables")
	flags.StringVar(&copts.entrypoint, "entrypoint", "", "Overwrite the default ENTRYPOINT of the image")
	flags.Var(&copts.groupAdd, "group-add", "Add additional groups to join")
	flags.StringVarP(&copts.hostname, "hostname", "h", "", "Container host name")
	flags.StringVar(&copts.domainname, "domainname", "", "Container NIS domain name")
	flags.BoolVarP(&copts.stdin, "interactive", "i", false, "Keep STDIN open even if not attached")
	flags.VarP(&copts.labels, "label", "l", "Set meta data on a container")
	flags.Var(&copts.labelsFile, "label-file", "Read in a line delimited file of labels")
	flags.BoolVar(&copts.readonlyRootfs, "read-only", false, "Mount the container's root filesystem as read only")
	flags.StringVar(&copts.restartPolicy, "restart", "no", "Restart policy to apply when a container exits")
	flags.StringVar(&copts.stopSignal, "stop-signal", "", "Signal to stop the container")
	flags.IntVar(&copts.stopTimeout, "stop-timeout", 0, "Timeout (in seconds) to stop a container")
	flags.SetAnnotation("stop-timeout", "version", []string{"1.25"})
	flags.Var(copts.sysctls, "sysctl", "Sysctl options")
	flags.BoolVarP(&copts.tty, "tty", "t", false, "Allocate a pseudo-TTY")
	flags.Var(copts.ulimits, "ulimit", "Ulimit options")
	flags.StringVarP(&copts.user, "user", "u", "", "Username or UID (format: <name|uid>[:<group|gid>])")
	flags.StringVarP(&copts.workingDir, "workdir", "w", "", "Working directory inside the container")
	flags.BoolVar(&copts.autoRemove, "rm", false, "Automatically remove the container when it exits")

	// Security
	flags.Var(&copts.capAdd, "cap-add", "Add Linux capabilities")
	flags.Var(&copts.capDrop, "cap-drop", "Drop Linux capabilities")
	flags.BoolVar(&copts.privileged, "privileged", false, "Give extended privileges to this container")
	flags.Var(&copts.securityOpt, "security-opt", "Security Options")
	flags.StringVar(&copts.usernsMode, "userns", "", "User namespace to use")
	flags.StringVar(&copts.cgroupnsMode, "cgroupns", "", `Cgroup namespace to use (host|private)
'host':    Run the container in the Docker host's cgroup namespace
'private': Run the container in its own private cgroup namespace
'':        Use the cgroup namespace as configured by the
           default-cgroupns-mode option on the daemon (default)`)
	flags.SetAnnotation("cgroupns", "version", []string{"1.41"})

	// Network and port publishing flag
	flags.Var(&copts.extraHosts, "add-host", "Add a custom host-to-IP mapping (host:ip)")
	flags.Var(&copts.dns, "dns", "Set custom DNS servers")
	// We allow for both "--dns-opt" and "--dns-option", although the latter is the recommended way.
	// This is to be consistent with service create/update
	flags.Var(&copts.dnsOptions, "dns-opt", "Set DNS options")
	flags.Var(&copts.dnsOptions, "dns-option", "Set DNS options")
	flags.MarkHidden("dns-opt")
	flags.Var(&copts.dnsSearch, "dns-search", "Set custom DNS search domains")
	flags.Var(&copts.expose, "expose", "Expose a port or a range of ports")
	flags.StringVar(&copts.ipv4Address, "ip", "", "IPv4 address (e.g., 172.30.100.104)")
	flags.StringVar(&copts.ipv6Address, "ip6", "", "IPv6 address (e.g., 2001:db8::33)")
	flags.Var(&copts.links, "link", "Add link to another container")
	flags.Var(&copts.linkLocalIPs, "link-local-ip", "Container IPv4/IPv6 link-local addresses")
	flags.StringVar(&copts.macAddress, "mac-address", "", "Container MAC address (e.g., 92:d0:c6:0a:29:33)")
	flags.VarP(&copts.publish, "publish", "p", "Publish a container's port(s) to the host")
	flags.BoolVarP(&copts.publishAll, "publish-all", "P", false, "Publish all exposed ports to random ports")
	// We allow for both "--net" and "--network", although the latter is the recommended way.
	flags.Var(&copts.netMode, "net", "Connect a container to a network")
	flags.Var(&copts.netMode, "network", "Connect a container to a network")
	flags.MarkHidden("net")
	// We allow for both "--net-alias" and "--network-alias", although the latter is the recommended way.
	flags.Var(&copts.aliases, "net-alias", "Add network-scoped alias for the container")
	flags.Var(&copts.aliases, "network-alias", "Add network-scoped alias for the container")
	flags.MarkHidden("net-alias")

	// Logging and storage
	flags.StringVar(&copts.loggingDriver, "log-driver", "", "Logging driver for the container")
	flags.StringVar(&copts.volumeDriver, "volume-driver", "", "Optional volume driver for the container")
	flags.Var(&copts.loggingOpts, "log-opt", "Log driver options")
	flags.Var(&copts.storageOpt, "storage-opt", "Storage driver options for the container")
	flags.Var(&copts.tmpfs, "tmpfs", "Mount a tmpfs directory")
	flags.Var(&copts.volumesFrom, "volumes-from", "Mount volumes from the specified container(s)")
	flags.VarP(&copts.volumes, "volume", "v", "Bind mount a volume")
	flags.Var(&copts.mounts, "mount", "Attach a filesystem mount to the container")

	// Health-checking
	flags.StringVar(&copts.healthCmd, "health-cmd", "", "Command to run to check health")
	flags.DurationVar(&copts.healthInterval, "health-interval", 0, "Time between running the check (ms|s|m|h) (default 0s)")
	flags.IntVar(&copts.healthRetries, "health-retries", 0, "Consecutive failures needed to report unhealthy")
	flags.DurationVar(&copts.healthTimeout, "health-timeout", 0, "Maximum time to allow one check to run (ms|s|m|h) (default 0s)")
	flags.DurationVar(&copts.healthStartPeriod, "health-start-period", 0, "Start period for the container to initialize before starting health-retries countdown (ms|s|m|h) (default 0s)")
	flags.SetAnnotation("health-start-period", "version", []string{"1.29"})
	flags.BoolVar(&copts.noHealthcheck, "no-healthcheck", false, "Disable any container-specified HEALTHCHECK")

	// Resource management
	flags.Uint16Var(&copts.blkioWeight, "blkio-weight", 0, "Block IO (relative weight), between 10 and 1000, or 0 to disable (default 0)")
	flags.Var(&copts.blkioWeightDevice, "blkio-weight-device", "Block IO weight (relative device weight)")
	flags.StringVar(&copts.containerIDFile, "cidfile", "", "Write the container ID to the file")
	flags.StringVar(&copts.cpusetCpus, "cpuset-cpus", "", "CPUs in which to allow execution (0-3, 0,1)")
	flags.StringVar(&copts.cpusetMems, "cpuset-mems", "", "MEMs in which to allow execution (0-3, 0,1)")
	flags.Int64Var(&copts.cpuCount, "cpu-count", 0, "CPU count (Windows only)")
	flags.SetAnnotation("cpu-count", "ostype", []string{"windows"})
	flags.Int64Var(&copts.cpuPercent, "cpu-percent", 0, "CPU percent (Windows only)")
	flags.SetAnnotation("cpu-percent", "ostype", []string{"windows"})
	flags.Int64Var(&copts.cpuPeriod, "cpu-period", 0, "Limit CPU CFS (Completely Fair Scheduler) period")
	flags.Int64Var(&copts.cpuQuota, "cpu-quota", 0, "Limit CPU CFS (Completely Fair Scheduler) quota")
	flags.Int64Var(&copts.cpuRealtimePeriod, "cpu-rt-period", 0, "Limit CPU real-time period in microseconds")
	flags.SetAnnotation("cpu-rt-period", "version", []string{"1.25"})
	flags.Int64Var(&copts.cpuRealtimeRuntime, "cpu-rt-runtime", 0, "Limit CPU real-time runtime in microseconds")
	flags.SetAnnotation("cpu-rt-runtime", "version", []string{"1.25"})
	flags.Int64VarP(&copts.cpuShares, "cpu-shares", "c", 0, "CPU shares (relative weight)")
	flags.Var(&copts.cpus, "cpus", "Number of CPUs")
	flags.SetAnnotation("cpus", "version", []string{"1.25"})
	flags.Var(&copts.deviceReadBps, "device-read-bps", "Limit read rate (bytes per second) from a device")
	flags.Var(&copts.deviceReadIOps, "device-read-iops", "Limit read rate (IO per second) from a device")
	flags.Var(&copts.deviceWriteBps, "device-write-bps", "Limit write rate (bytes per second) to a device")
	flags.Var(&copts.deviceWriteIOps, "device-write-iops", "Limit write rate (IO per second) to a device")
	flags.Var(&copts.ioMaxBandwidth, "io-maxbandwidth", "Maximum IO bandwidth limit for the system drive (Windows only)")
	flags.SetAnnotation("io-maxbandwidth", "ostype", []string{"windows"})
	flags.Uint64Var(&copts.ioMaxIOps, "io-maxiops", 0, "Maximum IOps limit for the system drive (Windows only)")
	flags.SetAnnotation("io-maxiops", "ostype", []string{"windows"})
	flags.Var(&copts.kernelMemory, "kernel-memory", "Kernel memory limit")
	flags.VarP(&copts.memory, "memory", "m", "Memory limit")
	flags.Var(&copts.memoryReservation, "memory-reservation", "Memory soft limit")
	flags.Var(&copts.memorySwap, "memory-swap", "Swap limit equal to memory plus swap: '-1' to enable unlimited swap")
	flags.Int64Var(&copts.swappiness, "memory-swappiness", -1, "Tune container memory swappiness (0 to 100)")
	flags.BoolVar(&copts.oomKillDisable, "oom-kill-disable", false, "Disable OOM Killer")
	flags.IntVar(&copts.oomScoreAdj, "oom-score-adj", 0, "Tune host's OOM preferences (-1000 to 1000)")
	flags.Int64Var(&copts.pidsLimit, "pids-limit", 0, "Tune container pids limit (set -1 for unlimited)")

	// Low-level execution (cgroups, namespaces, ...)
	flags.StringVar(&copts.cgroupParent, "cgroup-parent", "", "Optional parent cgroup for the container")
	flags.StringVar(&copts.ipcMode, "ipc", "", "IPC mode to use")
	flags.StringVar(&copts.isolation, "isolation", "", "Container isolation technology")
	flags.StringVar(&copts.pidMode, "pid", "", "PID namespace to use")
	flags.Var(&copts.shmSize, "shm-size", "Size of /dev/shm")
	flags.StringVar(&copts.utsMode, "uts", "", "UTS namespace to use")
	flags.StringVar(&copts.runtime, "runtime", "", "Runtime to use for this container")

	flags.BoolVar(&copts.init, "init", false, "Run an init inside the container that forwards signals and reaps processes")
	flags.SetAnnotation("init", "version", []string{"1.25"})
	return copts
}

type containerConfig struct {
	Config           *container.Config
	HostConfig       *container.HostConfig
	NetworkingConfig *networktypes.NetworkingConfig
}

// parse parses the args for the specified command and generates a Config,
// a HostConfig and returns them with the specified command.
// If the specified args are not valid, it will return an error.
//
//nolint:gocyclo
func parse(flags *pflag.FlagSet, copts *containerOptions, serverOS string) (*containerConfig, error) {
	var (
		attachStdin  = copts.attach.Get("stdin")
		attachStdout = copts.attach.Get("stdout")
		attachStderr = copts.attach.Get("stderr")
	)

	// Validate the input mac address
	if copts.macAddress != "" {
		if _, err := opts.ValidateMACAddress(copts.macAddress); err != nil {
			return nil, errors.Errorf("%s is not a valid mac address", copts.macAddress)
		}
	}
	if copts.stdin {
		attachStdin = true
	}
	// If -a is not set, attach to stdout and stderr
	if copts.attach.Len() == 0 {
		attachStdout = true
		attachStderr = true
	}

	var err error

	swappiness := copts.swappiness
	if swappiness != -1 && (swappiness < 0 || swappiness > 100) {
		return nil, errors.Errorf("invalid value: %d. Valid memory swappiness range is 0-100", swappiness)
	}

	mounts := copts.mounts.Value()
	if len(mounts) > 0 && copts.volumeDriver != "" {
		logrus.Warn("`--volume-driver` is ignored for volumes specified via `--mount`. Use `--mount type=volume,volume-driver=...` instead.")
	}
	var binds []string
	volumes := copts.volumes.GetMap()
	// add any bind targets to the list of container volumes
	for bind := range copts.volumes.GetMap() {
		parsed, _ := loader.ParseVolume(bind)

		if parsed.Source != "" {
			toBind := bind

			if parsed.Type == string(mounttypes.TypeBind) {
				if arr := strings.SplitN(bind, ":", 2); len(arr) == 2 {
					hostPart := arr[0]
					if strings.HasPrefix(hostPart, "."+string(filepath.Separator)) || hostPart == "." {
						if absHostPart, err := filepath.Abs(hostPart); err == nil {
							hostPart = absHostPart
						}
					}
					toBind = hostPart + ":" + arr[1]
				}
			}

			// after creating the bind mount we want to delete it from the copts.volumes values because
			// we do not want bind mounts being committed to image configs
			binds = append(binds, toBind)
			// We should delete from the map (`volumes`) here, as deleting from copts.volumes will not work if
			// there are duplicates entries.
			delete(volumes, bind)
		}
	}

	// Can't evaluate options passed into --tmpfs until we actually mount
	tmpfs := make(map[string]string)
	for _, t := range copts.tmpfs.GetAll() {
		if arr := strings.SplitN(t, ":", 2); len(arr) > 1 {
			tmpfs[arr[0]] = arr[1]
		} else {
			tmpfs[arr[0]] = ""
		}
	}

	var (
		runCmd     strslice.StrSlice
		entrypoint strslice.StrSlice
	)

	if len(copts.Args) > 0 {
		runCmd = strslice.StrSlice(copts.Args)
	}

	if copts.entrypoint != "" {
		entrypoint = strslice.StrSlice{copts.entrypoint}
	} else if flags.Changed("entrypoint") {
		// if `--entrypoint=` is parsed then Entrypoint is reset
		entrypoint = []string{""}
	}

	publishOpts := copts.publish.GetAll()
	var (
		ports         map[nat.Port]struct{}
		portBindings  map[nat.Port][]nat.PortBinding
		convertedOpts []string
	)

	convertedOpts, err = convertToStandardNotation(publishOpts)
	if err != nil {
		return nil, err
	}

	ports, portBindings, err = nat.ParsePortSpecs(convertedOpts)
	if err != nil {
		return nil, err
	}

	// Merge in exposed ports to the map of published ports
	for _, e := range copts.expose.GetAll() {
		if strings.Contains(e, ":") {
			return nil, errors.Errorf("invalid port format for --expose: %s", e)
		}
		// support two formats for expose, original format <portnum>/[<proto>]
		// or <startport-endport>/[<proto>]
		proto, port := nat.SplitProtoPort(e)
		// parse the start and end port and create a sequence of ports to expose
		// if expose a port, the start and end port are the same
		start, end, err := nat.ParsePortRange(port)
		if err != nil {
			return nil, errors.Errorf("invalid range format for --expose: %s, error: %s", e, err)
		}
		for i := start; i <= end; i++ {
			p, err := nat.NewPort(proto, strconv.FormatUint(i, 10))
			if err != nil {
				return nil, err
			}
			if _, exists := ports[p]; !exists {
				ports[p] = struct{}{}
			}
		}
	}

	// validate and parse device mappings. Note we do late validation of the
	// device path (as opposed to during flag parsing), as at the time we are
	// parsing flags, we haven't yet sent a _ping to the daemon to determine
	// what operating system it is.
	deviceMappings := []container.DeviceMapping{}
	for _, device := range copts.devices.GetAll() {
		var (
			validated     string
			deviceMapping container.DeviceMapping
			err           error
		)
		validated, err = validateDevice(device, serverOS)
		if err != nil {
			return nil, err
		}
		deviceMapping, err = parseDevice(validated, serverOS)
		if err != nil {
			return nil, err
		}
		deviceMappings = append(deviceMappings, deviceMapping)
	}

	// collect all the environment variables for the container
	envVariables, err := opts.ReadKVEnvStrings(copts.envFile.GetAll(), copts.env.GetAll())
	if err != nil {
		return nil, err
	}

	// collect all the labels for the container
	labels, err := opts.ReadKVStrings(copts.labelsFile.GetAll(), copts.labels.GetAll())
	if err != nil {
		return nil, err
	}

	pidMode := container.PidMode(copts.pidMode)
	if !pidMode.Valid() {
		return nil, errors.Errorf("--pid: invalid PID mode")
	}

	utsMode := container.UTSMode(copts.utsMode)
	if !utsMode.Valid() {
		return nil, errors.Errorf("--uts: invalid UTS mode")
	}

	usernsMode := container.UsernsMode(copts.usernsMode)
	if !usernsMode.Valid() {
		return nil, errors.Errorf("--userns: invalid USER mode")
	}

	cgroupnsMode := container.CgroupnsMode(copts.cgroupnsMode)
	if !cgroupnsMode.Valid() {
		return nil, errors.Errorf("--cgroupns: invalid CGROUP mode")
	}

	restartPolicy, err := opts.ParseRestartPolicy(copts.restartPolicy)
	if err != nil {
		return nil, err
	}

	loggingOpts, err := parseLoggingOpts(copts.loggingDriver, copts.loggingOpts.GetAll())
	if err != nil {
		return nil, err
	}

	securityOpts, err := parseSecurityOpts(copts.securityOpt.GetAll())
	if err != nil {
		return nil, err
	}

	securityOpts, maskedPaths, readonlyPaths := parseSystemPaths(securityOpts)

	storageOpts, err := parseStorageOpts(copts.storageOpt.GetAll())
	if err != nil {
		return nil, err
	}

	// Healthcheck
	var healthConfig *container.HealthConfig
	haveHealthSettings := copts.healthCmd != "" ||
		copts.healthInterval != 0 ||
		copts.healthTimeout != 0 ||
		copts.healthStartPeriod != 0 ||
		copts.healthRetries != 0
	if copts.noHealthcheck {
		if haveHealthSettings {
			return nil, errors.Errorf("--no-healthcheck conflicts with --health-* options")
		}
		test := strslice.StrSlice{"NONE"}
		healthConfig = &container.HealthConfig{Test: test}
	} else if haveHealthSettings {
		var probe strslice.StrSlice
		if copts.healthCmd != "" {
			args := []string{"CMD-SHELL", copts.healthCmd}
			probe = strslice.StrSlice(args)
		}
		if copts.healthInterval < 0 {
			return nil, errors.Errorf("--health-interval cannot be negative")
		}
		if copts.healthTimeout < 0 {
			return nil, errors.Errorf("--health-timeout cannot be negative")
		}
		if copts.healthRetries < 0 {
			return nil, errors.Errorf("--health-retries cannot be negative")
		}
		if copts.healthStartPeriod < 0 {
			return nil, fmt.Errorf("--health-start-period cannot be negative")
		}

		healthConfig = &container.HealthConfig{
			Test:        probe,
			Interval:    copts.healthInterval,
			Timeout:     copts.healthTimeout,
			StartPeriod: copts.healthStartPeriod,
			Retries:     copts.healthRetries,
		}
	}

	resources := container.Resources{
		CgroupParent:         copts.cgroupParent,
		Memory:               copts.memory.Value(),
		MemoryReservation:    copts.memoryReservation.Value(),
		MemorySwap:           copts.memorySwap.Value(),
		MemorySwappiness:     &copts.swappiness,
		KernelMemory:         copts.kernelMemory.Value(),
		OomKillDisable:       &copts.oomKillDisable,
		NanoCPUs:             copts.cpus.Value(),
		CPUCount:             copts.cpuCount,
		CPUPercent:           copts.cpuPercent,
		CPUShares:            copts.cpuShares,
		CPUPeriod:            copts.cpuPeriod,
		CpusetCpus:           copts.cpusetCpus,
		CpusetMems:           copts.cpusetMems,
		CPUQuota:             copts.cpuQuota,
		CPURealtimePeriod:    copts.cpuRealtimePeriod,
		CPURealtimeRuntime:   copts.cpuRealtimeRuntime,
		PidsLimit:            &copts.pidsLimit,
		BlkioWeight:          copts.blkioWeight,
		BlkioWeightDevice:    copts.blkioWeightDevice.GetList(),
		BlkioDeviceReadBps:   copts.deviceReadBps.GetList(),
		BlkioDeviceWriteBps:  copts.deviceWriteBps.GetList(),
		BlkioDeviceReadIOps:  copts.deviceReadIOps.GetList(),
		BlkioDeviceWriteIOps: copts.deviceWriteIOps.GetList(),
		IOMaximumIOps:        copts.ioMaxIOps,
		IOMaximumBandwidth:   uint64(copts.ioMaxBandwidth),
		Ulimits:              copts.ulimits.GetList(),
		DeviceCgroupRules:    copts.deviceCgroupRules.GetAll(),
		Devices:              deviceMappings,
		DeviceRequests:       copts.gpus.Value(),
	}

	config := &container.Config{
		Hostname:     copts.hostname,
		Domainname:   copts.domainname,
		ExposedPorts: ports,
		User:         copts.user,
		Tty:          copts.tty,
		// TODO: deprecated, it comes from -n, --networking
		// it's still needed internally to set the network to disabled
		// if e.g. bridge is none in daemon opts, and in inspect
		NetworkDisabled: false,
		OpenStdin:       copts.stdin,
		AttachStdin:     attachStdin,
		AttachStdout:    attachStdout,
		AttachStderr:    attachStderr,
		Env:             envVariables,
		Cmd:             runCmd,
		Image:           copts.Image,
		Volumes:         volumes,
		MacAddress:      copts.macAddress,
		Entrypoint:      entrypoint,
		WorkingDir:      copts.workingDir,
		Labels:          opts.ConvertKVStringsToMap(labels),
		StopSignal:      copts.stopSignal,
		Healthcheck:     healthConfig,
	}
	if flags.Changed("stop-timeout") {
		config.StopTimeout = &copts.stopTimeout
	}

	hostConfig := &container.HostConfig{
		Binds:           binds,
		ContainerIDFile: copts.containerIDFile,
		OomScoreAdj:     copts.oomScoreAdj,
		AutoRemove:      copts.autoRemove,
		Privileged:      copts.privileged,
		PortBindings:    portBindings,
		Links:           copts.links.GetAll(),
		PublishAllPorts: copts.publishAll,
		// Make sure the dns fields are never nil.
		// New containers don't ever have those fields nil,
		// but pre created containers can still have those nil values.
		// See https://github.com/docker/docker/pull/17779
		// for a more detailed explanation on why we don't want that.
		DNS:            copts.dns.GetAllOrEmpty(),
		DNSSearch:      copts.dnsSearch.GetAllOrEmpty(),
		DNSOptions:     copts.dnsOptions.GetAllOrEmpty(),
		ExtraHosts:     copts.extraHosts.GetAll(),
		VolumesFrom:    copts.volumesFrom.GetAll(),
		IpcMode:        container.IpcMode(copts.ipcMode),
		NetworkMode:    container.NetworkMode(copts.netMode.NetworkMode()),
		PidMode:        pidMode,
		UTSMode:        utsMode,
		UsernsMode:     usernsMode,
		CgroupnsMode:   cgroupnsMode,
		CapAdd:         strslice.StrSlice(copts.capAdd.GetAll()),
		CapDrop:        strslice.StrSlice(copts.capDrop.GetAll()),
		GroupAdd:       copts.groupAdd.GetAll(),
		RestartPolicy:  restartPolicy,
		SecurityOpt:    securityOpts,
		StorageOpt:     storageOpts,
		ReadonlyRootfs: copts.readonlyRootfs,
		LogConfig:      container.LogConfig{Type: copts.loggingDriver, Config: loggingOpts},
		VolumeDriver:   copts.volumeDriver,
		Isolation:      container.Isolation(copts.isolation),
		ShmSize:        copts.shmSize.Value(),
		Resources:      resources,
		Tmpfs:          tmpfs,
		Sysctls:        copts.sysctls.GetAll(),
		Runtime:        copts.runtime,
		Mounts:         mounts,
		MaskedPaths:    maskedPaths,
		ReadonlyPaths:  readonlyPaths,
	}

	if copts.autoRemove && !hostConfig.RestartPolicy.IsNone() {
		return nil, errors.Errorf("Conflicting options: --restart and --rm")
	}

	// only set this value if the user provided the flag, else it should default to nil
	if flags.Changed("init") {
		hostConfig.Init = &copts.init
	}

	// When allocating stdin in attached mode, close stdin at client disconnect
	if config.OpenStdin && config.AttachStdin {
		config.StdinOnce = true
	}

	networkingConfig := &networktypes.NetworkingConfig{
		EndpointsConfig: make(map[string]*networktypes.EndpointSettings),
	}

	networkingConfig.EndpointsConfig, err = parseNetworkOpts(copts)
	if err != nil {
		return nil, err
	}

	return &containerConfig{
		Config:           config,
		HostConfig:       hostConfig,
		NetworkingConfig: networkingConfig,
	}, nil
}

// parseNetworkOpts converts --network advanced options to endpoint-specs, and combines
// them with the old --network-alias and --links. If returns an error if conflicting options
// are found.
//
// this function may return _multiple_ endpoints, which is not currently supported
// by the daemon, but may be in future; it's up to the daemon to produce an error
// in case that is not supported.
func parseNetworkOpts(copts *containerOptions) (map[string]*networktypes.EndpointSettings, error) {
	var (
		endpoints                         = make(map[string]*networktypes.EndpointSettings, len(copts.netMode.Value()))
		hasUserDefined, hasNonUserDefined bool
	)

	for i, n := range copts.netMode.Value() {
		n := n
		if container.NetworkMode(n.Target).IsUserDefined() {
			hasUserDefined = true
		} else {
			hasNonUserDefined = true
		}
		if i == 0 {
			// The first network corresponds with what was previously the "only"
			// network, and what would be used when using the non-advanced syntax
			// `--network-alias`, `--link`, `--ip`, `--ip6`, and `--link-local-ip`
			// are set on this network, to preserve backward compatibility with
			// the non-advanced notation
			if err := applyContainerOptions(&n, copts); err != nil {
				return nil, err
			}
		}
		ep, err := parseNetworkAttachmentOpt(n)
		if err != nil {
			return nil, err
		}
		if _, ok := endpoints[n.Target]; ok {
			return nil, errdefs.InvalidParameter(errors.Errorf("network %q is specified multiple times", n.Target))
		}

		// For backward compatibility: if no custom options are provided for the network,
		// and only a single network is specified, omit the endpoint-configuration
		// on the client (the daemon will still create it when creating the container)
		if i == 0 && len(copts.netMode.Value()) == 1 {
			if ep == nil || reflect.DeepEqual(*ep, networktypes.EndpointSettings{}) {
				continue
			}
		}
		endpoints[n.Target] = ep
	}
	if hasUserDefined && hasNonUserDefined {
		return nil, errdefs.InvalidParameter(errors.New("conflicting options: cannot attach both user-defined and non-user-defined network-modes"))
	}
	return endpoints, nil
}

func applyContainerOptions(n *opts.NetworkAttachmentOpts, copts *containerOptions) error {
	// TODO should copts.MacAddress actually be set on the first network? (currently it's not)
	// TODO should we error if _any_ advanced option is used? (i.e. forbid to combine advanced notation with the "old" flags (`--network-alias`, `--link`, `--ip`, `--ip6`)?
	if len(n.Aliases) > 0 && copts.aliases.Len() > 0 {
		return errdefs.InvalidParameter(errors.New("conflicting options: cannot specify both --network-alias and per-network alias"))
	}
	if len(n.Links) > 0 && copts.links.Len() > 0 {
		return errdefs.InvalidParameter(errors.New("conflicting options: cannot specify both --link and per-network links"))
	}
	if n.IPv4Address != "" && copts.ipv4Address != "" {
		return errdefs.InvalidParameter(errors.New("conflicting options: cannot specify both --ip and per-network IPv4 address"))
	}
	if n.IPv6Address != "" && copts.ipv6Address != "" {
		return errdefs.InvalidParameter(errors.New("conflicting options: cannot specify both --ip6 and per-network IPv6 address"))
	}
	if copts.aliases.Len() > 0 {
		n.Aliases = make([]string, copts.aliases.Len())
		copy(n.Aliases, copts.aliases.GetAll())
	}
	if copts.links.Len() > 0 {
		n.Links = make([]string, copts.links.Len())
		copy(n.Links, copts.links.GetAll())
	}
	if copts.ipv4Address != "" {
		n.IPv4Address = copts.ipv4Address
	}
	if copts.ipv6Address != "" {
		n.IPv6Address = copts.ipv6Address
	}

	// TODO should linkLocalIPs be added to the _first_ network only, or to _all_ networks? (should this be a per-network option as well?)
	if copts.linkLocalIPs.Len() > 0 {
		n.LinkLocalIPs = make([]string, copts.linkLocalIPs.Len())
		copy(n.LinkLocalIPs, copts.linkLocalIPs.GetAll())
	}
	return nil
}

func parseNetworkAttachmentOpt(ep opts.NetworkAttachmentOpts) (*networktypes.EndpointSettings, error) {
	if strings.TrimSpace(ep.Target) == "" {
		return nil, errors.New("no name set for network")
	}
	if !container.NetworkMode(ep.Target).IsUserDefined() {
		if len(ep.Aliases) > 0 {
			return nil, errors.New("network-scoped aliases are only supported for user-defined networks")
		}
		if len(ep.Links) > 0 {
			return nil, errors.New("links are only supported for user-defined networks")
		}
	}

	epConfig := &networktypes.EndpointSettings{}
	epConfig.Aliases = append(epConfig.Aliases, ep.Aliases...)
	if len(ep.DriverOpts) > 0 {
		epConfig.DriverOpts = make(map[string]string)
		epConfig.DriverOpts = ep.DriverOpts
	}
	if len(ep.Links) > 0 {
		epConfig.Links = ep.Links
	}
	if ep.IPv4Address != "" || ep.IPv6Address != "" || len(ep.LinkLocalIPs) > 0 {
		epConfig.IPAMConfig = &networktypes.EndpointIPAMConfig{
			IPv4Address:  ep.IPv4Address,
			IPv6Address:  ep.IPv6Address,
			LinkLocalIPs: ep.LinkLocalIPs,
		}
	}
	return epConfig, nil
}

func convertToStandardNotation(ports []string) ([]string, error) {
	optsList := []string{}
	for _, publish := range ports {
		if strings.Contains(publish, "=") {
			params := map[string]string{"protocol": "tcp"}
			for _, param := range strings.Split(publish, ",") {
				opt := strings.Split(param, "=")
				if len(opt) < 2 {
					return optsList, errors.Errorf("invalid publish opts format (should be name=value but got '%s')", param)
				}

				params[opt[0]] = opt[1]
			}
			optsList = append(optsList, fmt.Sprintf("%s:%s/%s", params["published"], params["target"], params["protocol"]))
		} else {
			optsList = append(optsList, publish)
		}
	}
	return optsList, nil
}

func parseLoggingOpts(loggingDriver string, loggingOpts []string) (map[string]string, error) {
	loggingOptsMap := opts.ConvertKVStringsToMap(loggingOpts)
	if loggingDriver == "none" && len(loggingOpts) > 0 {
		return map[string]string{}, errors.Errorf("invalid logging opts for driver %s", loggingDriver)
	}
	return loggingOptsMap, nil
}

// takes a local seccomp daemon, reads the file contents for sending to the daemon
func parseSecurityOpts(securityOpts []string) ([]string, error) {
	for key, opt := range securityOpts {
		con := strings.SplitN(opt, "=", 2)
		if len(con) == 1 && con[0] != "no-new-privileges" {
			if strings.Contains(opt, ":") {
				con = strings.SplitN(opt, ":", 2)
			} else {
				return securityOpts, errors.Errorf("Invalid --security-opt: %q", opt)
			}
		}
		if con[0] == "seccomp" && con[1] != "unconfined" {
			f, err := os.ReadFile(con[1])
			if err != nil {
				return securityOpts, errors.Errorf("opening seccomp profile (%s) failed: %v", con[1], err)
			}
			b := bytes.NewBuffer(nil)
			if err := json.Compact(b, f); err != nil {
				return securityOpts, errors.Errorf("compacting json for seccomp profile (%s) failed: %v", con[1], err)
			}
			securityOpts[key] = fmt.Sprintf("seccomp=%s", b.Bytes())
		}
	}

	return securityOpts, nil
}

// parseSystemPaths checks if `systempaths=unconfined` security option is set,
// and returns the `MaskedPaths` and `ReadonlyPaths` accordingly. An updated
// list of security options is returned with this option removed, because the
// `unconfined` option is handled client-side, and should not be sent to the
// daemon.
func parseSystemPaths(securityOpts []string) (filtered, maskedPaths, readonlyPaths []string) {
	filtered = securityOpts[:0]
	for _, opt := range securityOpts {
		if opt == "systempaths=unconfined" {
			maskedPaths = []string{}
			readonlyPaths = []string{}
		} else {
			filtered = append(filtered, opt)
		}
	}

	return filtered, maskedPaths, readonlyPaths
}

// parses storage options per container into a map
func parseStorageOpts(storageOpts []string) (map[string]string, error) {
	m := make(map[string]string)
	for _, option := range storageOpts {
		if strings.Contains(option, "=") {
			opt := strings.SplitN(option, "=", 2)
			m[opt[0]] = opt[1]
		} else {
			return nil, errors.Errorf("invalid storage option")
		}
	}
	return m, nil
}

// parseDevice parses a device mapping string to a container.DeviceMapping struct
func parseDevice(device, serverOS string) (container.DeviceMapping, error) {
	switch serverOS {
	case "linux":
		return parseLinuxDevice(device)
	case "windows":
		return parseWindowsDevice(device)
	}
	return container.DeviceMapping{}, errors.Errorf("unknown server OS: %s", serverOS)
}

// parseLinuxDevice parses a device mapping string to a container.DeviceMapping struct
// knowing that the target is a Linux daemon
func parseLinuxDevice(device string) (container.DeviceMapping, error) {
	var src, dst string
	permissions := "rwm"
	arr := strings.Split(device, ":")
	switch len(arr) {
	case 3:
		permissions = arr[2]
		fallthrough
	case 2:
		if validDeviceMode(arr[1]) {
			permissions = arr[1]
		} else {
			dst = arr[1]
		}
		fallthrough
	case 1:
		src = arr[0]
	default:
		return container.DeviceMapping{}, errors.Errorf("invalid device specification: %s", device)
	}

	if dst == "" {
		dst = src
	}

	deviceMapping := container.DeviceMapping{
		PathOnHost:        src,
		PathInContainer:   dst,
		CgroupPermissions: permissions,
	}
	return deviceMapping, nil
}

// parseWindowsDevice parses a device mapping string to a container.DeviceMapping struct
// knowing that the target is a Windows daemon
func parseWindowsDevice(device string) (container.DeviceMapping, error) {
	return container.DeviceMapping{PathOnHost: device}, nil
}

// validateDeviceCgroupRule validates a device cgroup rule string format
// It will make sure 'val' is in the form:
//
//	'type major:minor mode'
func validateDeviceCgroupRule(val string) (string, error) {
	if deviceCgroupRuleRegexp.MatchString(val) {
		return val, nil
	}

	return val, errors.Errorf("invalid device cgroup format '%s'", val)
}

// validDeviceMode checks if the mode for device is valid or not.
// Valid mode is a composition of r (read), w (write), and m (mknod).
func validDeviceMode(mode string) bool {
	var legalDeviceMode = map[rune]bool{
		'r': true,
		'w': true,
		'm': true,
	}
	if mode == "" {
		return false
	}
	for _, c := range mode {
		if !legalDeviceMode[c] {
			return false
		}
		legalDeviceMode[c] = false
	}
	return true
}

// validateDevice validates a path for devices
func validateDevice(val string, serverOS string) (string, error) {
	switch serverOS {
	case "linux":
		return validateLinuxPath(val, validDeviceMode)
	case "windows":
		// Windows does validation entirely server-side
		return val, nil
	}
	return "", errors.Errorf("unknown server OS: %s", serverOS)
}

// validateLinuxPath is the implementation of validateDevice knowing that the
// target server operating system is a Linux daemon.
// It will make sure 'val' is in the form:
//
//	[host-dir:]container-path[:mode]
//
// It also validates the device mode.
func validateLinuxPath(val string, validator func(string) bool) (string, error) {
	var containerPath string
	var mode string

	if strings.Count(val, ":") > 2 {
		return val, errors.Errorf("bad format for path: %s", val)
	}

	split := strings.SplitN(val, ":", 3)
	if split[0] == "" {
		return val, errors.Errorf("bad format for path: %s", val)
	}
	switch len(split) {
	case 1:
		containerPath = split[0]
		val = path.Clean(containerPath)
	case 2:
		if isValid := validator(split[1]); isValid {
			containerPath = split[0]
			mode = split[1]
			val = fmt.Sprintf("%s:%s", path.Clean(containerPath), mode)
		} else {
			containerPath = split[1]
			val = fmt.Sprintf("%s:%s", split[0], path.Clean(containerPath))
		}
	case 3:
		containerPath = split[1]
		mode = split[2]
		if isValid := validator(split[2]); !isValid {
			return val, errors.Errorf("bad mode specified: %s", mode)
		}
		val = fmt.Sprintf("%s:%s:%s", split[0], containerPath, mode)
	}

	if !path.IsAbs(containerPath) {
		return val, errors.Errorf("%s is not an absolute path", containerPath)
	}
	return val, nil
}

// validateAttach validates that the specified string is a valid attach option.
func validateAttach(val string) (string, error) {
	s := strings.ToLower(val)
	for _, str := range []string{"stdin", "stdout", "stderr"} {
		if s == str {
			return s, nil
		}
	}
	return val, errors.Errorf("valid streams are STDIN, STDOUT and STDERR")
}

func validateAPIVersion(c *containerConfig, serverAPIVersion string) error {
	for _, m := range c.HostConfig.Mounts {
		if m.BindOptions != nil && m.BindOptions.NonRecursive && versions.LessThan(serverAPIVersion, "1.40") {
			return errors.Errorf("bind-nonrecursive requires API v1.40 or later")
		}
	}
	return nil
}