summaryrefslogtreecommitdiff
path: root/cmd/podman/create.go
blob: fe6d30c9eeb60d5d74e995e125f81bb17488072c (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
package main

import (
	"encoding/json"
	"fmt"
	"net"
	"os"
	"strconv"
	"strings"
	"syscall"

	"github.com/docker/docker/api/types/container"
	"github.com/docker/docker/pkg/signal"
	"github.com/docker/go-connections/nat"
	"github.com/docker/go-units"
	"github.com/opencontainers/selinux/go-selinux/label"
	"github.com/pkg/errors"
	"github.com/projectatomic/libpod/libpod"
	"github.com/projectatomic/libpod/libpod/image"
	"github.com/projectatomic/libpod/pkg/inspect"
	"github.com/projectatomic/libpod/pkg/util"
	"github.com/sirupsen/logrus"
	"github.com/urfave/cli"
)

type mountType string

// Type constants
const (
	// TypeBind is the type for mounting host dir
	TypeBind mountType = "bind"
	// TypeVolume is the type for remote storage volumes
	// TypeVolume mountType = "volume"  // re-enable upon use
	// TypeTmpfs is the type for mounting tmpfs
	TypeTmpfs mountType = "tmpfs"
)

var (
	defaultEnvVariables = map[string]string{
		"PATH": "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
		"TERM": "xterm",
	}
)

type createResourceConfig struct {
	BlkioWeight       uint16   // blkio-weight
	BlkioWeightDevice []string // blkio-weight-device
	CPUPeriod         uint64   // cpu-period
	CPUQuota          int64    // cpu-quota
	CPURtPeriod       uint64   // cpu-rt-period
	CPURtRuntime      int64    // cpu-rt-runtime
	CPUShares         uint64   // cpu-shares
	CPUs              float64  // cpus
	CPUsetCPUs        string
	CPUsetMems        string   // cpuset-mems
	DeviceReadBps     []string // device-read-bps
	DeviceReadIOps    []string // device-read-iops
	DeviceWriteBps    []string // device-write-bps
	DeviceWriteIOps   []string // device-write-iops
	DisableOomKiller  bool     // oom-kill-disable
	KernelMemory      int64    // kernel-memory
	Memory            int64    //memory
	MemoryReservation int64    // memory-reservation
	MemorySwap        int64    //memory-swap
	MemorySwappiness  int      // memory-swappiness
	OomScoreAdj       int      //oom-score-adj
	PidsLimit         int64    // pids-limit
	ShmSize           int64
	Ulimit            []string //ulimit
}

type createConfig struct {
	Runtime            *libpod.Runtime
	Args               []string
	CapAdd             []string // cap-add
	CapDrop            []string // cap-drop
	CidFile            string
	ConmonPidFile      string
	CgroupParent       string // cgroup-parent
	Command            []string
	Detach             bool              // detach
	Devices            []string          // device
	DNSOpt             []string          //dns-opt
	DNSSearch          []string          //dns-search
	DNSServers         []string          //dns
	Entrypoint         []string          //entrypoint
	Env                map[string]string //env
	ExposedPorts       map[nat.Port]struct{}
	GroupAdd           []uint32 // group-add
	HostAdd            []string //add-host
	Hostname           string   //hostname
	Image              string
	ImageID            string
	BuiltinImgVolumes  map[string]struct{}   // volumes defined in the image config
	ImageVolumeType    string                // how to handle the image volume, either bind, tmpfs, or ignore
	Interactive        bool                  //interactive
	IpcMode            container.IpcMode     //ipc
	IP6Address         string                //ipv6
	IPAddress          string                //ip
	Labels             map[string]string     //label
	LinkLocalIP        []string              // link-local-ip
	LogDriver          string                // log-driver
	LogDriverOpt       []string              // log-opt
	MacAddress         string                //mac-address
	Name               string                //name
	NetMode            container.NetworkMode //net
	Network            string                //network
	NetworkAlias       []string              //network-alias
	PidMode            container.PidMode     //pid
	NsUser             string
	Pod                string //pod
	PortBindings       nat.PortMap
	Privileged         bool     //privileged
	Publish            []string //publish
	PublishAll         bool     //publish-all
	Quiet              bool     //quiet
	ReadOnlyRootfs     bool     //read-only
	Resources          createResourceConfig
	Rm                 bool //rm
	ShmDir             string
	StopSignal         syscall.Signal    // stop-signal
	StopTimeout        uint              // stop-timeout
	Sysctl             map[string]string //sysctl
	Tmpfs              []string          // tmpfs
	Tty                bool              //tty
	User               string            //user
	UtsMode            container.UTSMode //uts
	Volumes            []string          //volume
	WorkDir            string            //workdir
	MountLabel         string            //SecurityOpts
	ProcessLabel       string            //SecurityOpts
	NoNewPrivs         bool              //SecurityOpts
	ApparmorProfile    string            //SecurityOpts
	SeccompProfilePath string            //SecurityOpts
	SecurityOpts       []string
}

var createDescription = "Creates a new container from the given image or" +
	" storage and prepares it for running the specified command. The" +
	" container ID is then printed to stdout. You can then start it at" +
	" any time with the podman start <container_id> command. The container" +
	" will be created with the initial state 'created'."

var createCommand = cli.Command{
	Name:                   "create",
	Usage:                  "create but do not start a container",
	Description:            createDescription,
	Flags:                  createFlags,
	Action:                 createCmd,
	ArgsUsage:              "IMAGE [COMMAND [ARG...]]",
	SkipArgReorder:         true,
	UseShortOptionHandling: true,
}

func createCmd(c *cli.Context) error {
	// TODO should allow user to create based off a directory on the host not just image
	// Need CLI support for this

	if err := validateFlags(c, createFlags); err != nil {
		return err
	}

	if c.String("cidfile") != "" {
		if _, err := os.Stat(c.String("cidfile")); err == nil {
			return errors.Errorf("container id file exists. ensure another container is not using it or delete %s", c.String("cidfile"))
		}
		if err := libpod.WriteFile("", c.String("cidfile")); err != nil {
			return errors.Wrapf(err, "unable to write cidfile %s", c.String("cidfile"))
		}
	}

	if len(c.Args()) < 1 {
		return errors.Errorf("image name or ID is required")
	}

	runtime, err := getRuntime(c)
	if err != nil {
		return errors.Wrapf(err, "error creating libpod runtime")
	}
	defer runtime.Shutdown(false)

	rtc := runtime.GetConfig()

	newImage, err := runtime.ImageRuntime().New(c.Args()[0], rtc.SignaturePolicyPath, "", os.Stderr, nil, image.SigningOptions{})
	if err != nil {
		return err
	}
	data, err := newImage.Inspect()
	createConfig, err := parseCreateOpts(c, runtime, newImage.Names()[0], data)
	if err != nil {
		return err
	}
	useImageVolumes := createConfig.ImageVolumeType == "bind"

	runtimeSpec, err := createConfigToOCISpec(createConfig)
	if err != nil {
		return err
	}
	options, err := createConfig.GetContainerCreateOptions()
	if err != nil {
		return errors.Wrapf(err, "unable to parse new container options")
	}
	// Gather up the options for NewContainer which consist of With... funcs
	options = append(options, libpod.WithRootFSFromImage(createConfig.ImageID, createConfig.Image, useImageVolumes))
	options = append(options, libpod.WithSELinuxLabels(createConfig.ProcessLabel, createConfig.MountLabel))
	options = append(options, libpod.WithConmonPidFile(createConfig.ConmonPidFile))
	options = append(options, libpod.WithLabels(createConfig.Labels))
	options = append(options, libpod.WithUser(createConfig.User))
	options = append(options, libpod.WithShmDir(createConfig.ShmDir))
	options = append(options, libpod.WithShmSize(createConfig.Resources.ShmSize))
	ctr, err := runtime.NewContainer(runtimeSpec, options...)
	if err != nil {
		return err
	}

	createConfigJSON, err := json.Marshal(createConfig)
	if err != nil {
		return err
	}
	if err := ctr.AddArtifact("create-config", createConfigJSON); err != nil {
		return err
	}

	logrus.Debug("new container created ", ctr.ID())

	if c.String("cidfile") != "" {
		err := libpod.WriteFile(ctr.ID(), c.String("cidfile"))
		if err != nil {
			logrus.Error(err)
		}
	}
	fmt.Printf("%s\n", ctr.ID())
	return nil
}

func parseSecurityOpt(config *createConfig, securityOpts []string) error {
	var (
		labelOpts []string
		err       error
	)

	if config.PidMode.IsHost() {
		labelOpts = append(labelOpts, label.DisableSecOpt()...)
	} else if config.PidMode.IsContainer() {
		ctr, err := config.Runtime.LookupContainer(config.PidMode.Container())
		if err != nil {
			return errors.Wrapf(err, "container %q not found", config.PidMode.Container())
		}
		labelOpts = append(labelOpts, label.DupSecOpt(ctr.ProcessLabel())...)
	}

	if config.IpcMode.IsHost() {
		labelOpts = append(labelOpts, label.DisableSecOpt()...)
	} else if config.IpcMode.IsContainer() {
		ctr, err := config.Runtime.LookupContainer(config.IpcMode.Container())
		if err != nil {
			return errors.Wrapf(err, "container %q not found", config.IpcMode.Container())
		}
		labelOpts = append(labelOpts, label.DupSecOpt(ctr.ProcessLabel())...)
	}

	for _, opt := range securityOpts {
		if opt == "no-new-privileges" {
			config.NoNewPrivs = true
		} else {
			con := strings.SplitN(opt, "=", 2)
			if len(con) != 2 {
				return fmt.Errorf("Invalid --security-opt 1: %q", opt)
			}

			switch con[0] {
			case "label":
				labelOpts = append(labelOpts, con[1])
			case "apparmor":
				config.ApparmorProfile = con[1]
			case "seccomp":
				config.SeccompProfilePath = con[1]
			default:
				return fmt.Errorf("Invalid --security-opt 2: %q", opt)
			}
		}
	}

	if config.SeccompProfilePath == "" {
		if _, err := os.Stat(libpod.SeccompOverridePath); err == nil {
			config.SeccompProfilePath = libpod.SeccompOverridePath
		} else {
			if !os.IsNotExist(err) {
				return errors.Wrapf(err, "can't check if %q exists", libpod.SeccompOverridePath)
			}
			if _, err := os.Stat(libpod.SeccompDefaultPath); err != nil {
				if !os.IsNotExist(err) {
					return errors.Wrapf(err, "can't check if %q exists", libpod.SeccompDefaultPath)
				}
			} else {
				config.SeccompProfilePath = libpod.SeccompDefaultPath
			}
		}
	}
	config.ProcessLabel, config.MountLabel, err = label.InitLabels(labelOpts)
	return err
}

// isPortInPortBindings determines if an exposed host port is in user
// provided ports
func isPortInPortBindings(pb map[nat.Port][]nat.PortBinding, port nat.Port) bool {
	var hostPorts []string
	for _, i := range pb {
		hostPorts = append(hostPorts, i[0].HostPort)
	}
	return util.StringInSlice(port.Port(), hostPorts)
}

// isPortInImagePorts determines if an exposed host port was given to us by metadata
// in the image itself
func isPortInImagePorts(exposedPorts map[string]struct{}, port string) bool {
	for i := range exposedPorts {
		fields := strings.Split(i, "/")
		if port == fields[0] {
			return true
		}
	}
	return false
}

func exposedPorts(c *cli.Context, imageExposedPorts map[string]struct{}) (map[nat.Port][]nat.PortBinding, error) {
	containerPorts := make(map[string]string)

	// add expose ports from the image itself
	for expose := range imageExposedPorts {
		_, port := nat.SplitProtoPort(expose)
		containerPorts[port] = ""
	}

	// add the expose ports from the user (--expose)
	// can be single or a range
	for _, expose := range c.StringSlice("expose") {
		//support two formats for expose, original format <portnum>/[<proto>] or <startport-endport>/[<proto>]
		_, port := nat.SplitProtoPort(expose)
		//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, fmt.Errorf("invalid range format for --expose: %s, error: %s", expose, err)
		}
		for i := start; i <= end; i++ {
			containerPorts[strconv.Itoa(int(i))] = ""
		}
	}

	// parse user input'd port bindings
	pbPorts, portBindings, err := nat.ParsePortSpecs(c.StringSlice("publish"))
	if err != nil {
		return nil, err
	}

	// delete exposed container ports if being used by -p
	for i := range pbPorts {
		delete(containerPorts, i.Port())
	}

	// iterate container ports and make port bindings from them
	if c.Bool("publish-all") {
		for e := range containerPorts {
			//support two formats for expose, original format <portnum>/[<proto>] or <startport-endport>/[<proto>]
			//proto, port := nat.SplitProtoPort(e)
			p, err := nat.NewPort("tcp", e)
			if err != nil {
				return nil, err
			}
			l, err := net.Listen("tcp", ":0")
			if err != nil {
				return nil, errors.Wrapf(err, "unable to get free port")
			}
			defer l.Close()
			_, randomPort, err := net.SplitHostPort(l.Addr().String())
			if err != nil {
				return nil, errors.Wrapf(err, "unable to determine free port")
			}
			rp, err := strconv.Atoi(randomPort)
			if err != nil {
				return nil, errors.Wrapf(err, "unable to convert random port to int")
			}
			logrus.Debug(fmt.Sprintf("Using random host port %s with container port %d", randomPort, p.Int()))
			portBindings[p] = CreatePortBinding(rp, "")
		}
	}
	return portBindings, nil
}

// Parses CLI options related to container creation into a config which can be
// parsed into an OCI runtime spec
func parseCreateOpts(c *cli.Context, runtime *libpod.Runtime, imageName string, data *inspect.ImageData) (*createConfig, error) {
	var inputCommand, command []string
	var memoryLimit, memoryReservation, memorySwap, memoryKernel int64
	var blkioWeight uint16

	imageID := data.ID

	if len(c.Args()) > 1 {
		inputCommand = c.Args()[1:]
	}

	sysctl, err := validateSysctl(c.StringSlice("sysctl"))
	if err != nil {
		return nil, errors.Wrapf(err, "invalid value for sysctl")
	}

	groupAdd, err := stringSlicetoUint32Slice(c.StringSlice("group-add"))
	if err != nil {
		return nil, errors.Wrapf(err, "invalid value for groups provided")
	}

	if c.String("memory") != "" {
		memoryLimit, err = units.RAMInBytes(c.String("memory"))
		if err != nil {
			return nil, errors.Wrapf(err, "invalid value for memory")
		}
	}
	if c.String("memory-reservation") != "" {
		memoryReservation, err = units.RAMInBytes(c.String("memory-reservation"))
		if err != nil {
			return nil, errors.Wrapf(err, "invalid value for memory-reservation")
		}
	}
	if c.String("memory-swap") != "" {
		memorySwap, err = units.RAMInBytes(c.String("memory-swap"))
		if err != nil {
			return nil, errors.Wrapf(err, "invalid value for memory-swap")
		}
	}
	if c.String("kernel-memory") != "" {
		memoryKernel, err = units.RAMInBytes(c.String("kernel-memory"))
		if err != nil {
			return nil, errors.Wrapf(err, "invalid value for kernel-memory")
		}
	}
	if c.String("blkio-weight") != "" {
		u, err := strconv.ParseUint(c.String("blkio-weight"), 10, 16)
		if err != nil {
			return nil, errors.Wrapf(err, "invalid value for blkio-weight")
		}
		blkioWeight = uint16(u)
	}

	if err = parseVolumes(c.StringSlice("volume")); err != nil {
		return nil, err
	}

	// Because we cannot do a non-terminal attach, we need to set tty to true
	// if detach is not false
	// TODO Allow non-terminal attach
	tty := c.Bool("tty")
	if !c.Bool("detach") && !tty {
		tty = true
	}

	pidMode := container.PidMode(c.String("pid"))
	if !pidMode.Valid() {
		return nil, errors.Errorf("--pid %q is not valid", c.String("pid"))
	}

	if c.Bool("detach") && c.Bool("rm") {
		return nil, errors.Errorf("--rm and --detach can not be specified together")
	}
	if c.Int64("cpu-period") != 0 && c.Float64("cpus") > 0 {
		return nil, errors.Errorf("--cpu-period and --cpus cannot be set together")
	}
	if c.Int64("cpu-quota") != 0 && c.Float64("cpus") > 0 {
		return nil, errors.Errorf("--cpu-quota and --cpus cannot be set together")
	}

	utsMode := container.UTSMode(c.String("uts"))
	if !utsMode.Valid() {
		return nil, errors.Errorf("--uts %q is not valid", c.String("uts"))
	}
	ipcMode := container.IpcMode(c.String("ipc"))
	if !ipcMode.Valid() {
		return nil, errors.Errorf("--ipc %q is not valid", ipcMode)
	}
	shmDir := ""
	if ipcMode.IsHost() {
		shmDir = "/dev/shm"
	} else if ipcMode.IsContainer() {
		ctr, err := runtime.LookupContainer(ipcMode.Container())
		if err != nil {
			return nil, errors.Wrapf(err, "container %q not found", ipcMode.Container())
		}
		shmDir = ctr.ShmDir()
	}

	// USER
	user := c.String("user")
	if user == "" {
		user = data.ContainerConfig.User
	}

	// STOP SIGNAL
	stopSignal := syscall.SIGTERM
	signalString := data.ContainerConfig.StopSignal
	if c.IsSet("stop-signal") {
		signalString = c.String("stop-signal")
	}
	if signalString != "" {
		stopSignal, err = signal.ParseSignal(signalString)
		if err != nil {
			return nil, err
		}
	}

	// ENVIRONMENT VARIABLES
	env := defaultEnvVariables
	for _, e := range data.ContainerConfig.Env {
		split := strings.SplitN(e, "=", 2)
		if len(split) > 1 {
			env[split[0]] = split[1]
		} else {
			env[split[0]] = ""
		}
	}
	if err := readKVStrings(env, c.StringSlice("env-file"), c.StringSlice("env")); err != nil {
		return nil, errors.Wrapf(err, "unable to process environment variables")
	}

	// LABEL VARIABLES
	labels, err := getAllLabels(c.StringSlice("label-file"), c.StringSlice("label"))
	if err != nil {
		return nil, errors.Wrapf(err, "unable to process labels")
	}
	for key, val := range data.ContainerConfig.Labels {
		if _, ok := labels[key]; !ok {
			labels[key] = val
		}
	}

	// WORKING DIRECTORY
	workDir := "/"
	if c.IsSet("workdir") {
		workDir = c.String("workdir")
	} else if data.ContainerConfig.WorkingDir != "" {
		workDir = data.ContainerConfig.WorkingDir
	}

	// ENTRYPOINT
	// User input entrypoint takes priority over image entrypoint
	entrypoint := c.StringSlice("entrypoint")
	if len(entrypoint) == 0 {
		entrypoint = data.ContainerConfig.Entrypoint
	}
	// if entrypoint=, we need to clear the entrypoint
	if len(entrypoint) == 1 && c.IsSet("entrypoint") && strings.Join(c.StringSlice("entrypoint"), "") == "" {
		entrypoint = []string{}
	}
	// Build the command
	// If we have an entry point, it goes first
	if len(entrypoint) > 0 {
		command = entrypoint
	}
	if len(inputCommand) > 0 {
		// User command overrides data CMD
		command = append(command, inputCommand...)
	} else if len(data.ContainerConfig.Cmd) > 0 && !c.IsSet("entrypoint") {
		// If not user command, add CMD
		command = append(command, data.ContainerConfig.Cmd...)
	}

	if len(command) == 0 {
		return nil, errors.Errorf("No command specified on command line or as CMD or ENTRYPOINT in this image")
	}

	// EXPOSED PORTS
	portBindings, err := exposedPorts(c, data.ContainerConfig.ExposedPorts)
	if err != nil {
		return nil, err
	}

	// SHM SIze
	shmSize, err := units.FromHumanSize(c.String("shm-size"))
	if err != nil {
		return nil, errors.Wrapf(err, "unable to translate --shm-size")
	}
	// Network
	// Both --network and --net have default values of 'bridge'
	// --net only overrides --network when --network is not explicitly
	// set and --net is.
	if c.IsSet("network") && c.IsSet("net") {
		return nil, errors.Errorf("cannot use --network and --net together.  use only --network instead")
	}
	networkMode := c.String("network")
	if !c.IsSet("network") && c.IsSet("net") {
		networkMode = c.String("net")
	}

	// Verify the additional hosts are in correct format
	for _, host := range c.StringSlice("add-host") {
		if _, err := validateExtraHost(host); err != nil {
			return nil, err
		}
	}

	// Check for . and dns-search domains
	if util.StringInSlice(".", c.StringSlice("dns-search")) && len(c.StringSlice("dns-search")) > 1 {
		return nil, errors.Errorf("cannot pass additional search domains when also specifying '.'")
	}

	ImageVolumes := data.ContainerConfig.Volumes

	var imageVolType = map[string]string{
		"bind":   "",
		"tmpfs":  "",
		"ignore": "",
	}
	if _, ok := imageVolType[c.String("image-volume")]; !ok {
		return nil, errors.Errorf("invalid image-volume type %q. Pick one of bind, tmpfs, or ignore", c.String("image-volume"))
	}

	config := &createConfig{
		Runtime:           runtime,
		BuiltinImgVolumes: ImageVolumes,
		ConmonPidFile:     c.String("conmon-pidfile"),
		ImageVolumeType:   c.String("image-volume"),
		CapAdd:            c.StringSlice("cap-add"),
		CapDrop:           c.StringSlice("cap-drop"),
		CgroupParent:      c.String("cgroup-parent"),
		Command:           command,
		Detach:            c.Bool("detach"),
		Devices:           c.StringSlice("device"),
		DNSOpt:            c.StringSlice("dns-opt"),
		DNSSearch:         c.StringSlice("dns-search"),
		DNSServers:        c.StringSlice("dns"),
		Entrypoint:        entrypoint,
		Env:               env,
		//ExposedPorts:   ports,
		GroupAdd:       groupAdd,
		Hostname:       c.String("hostname"),
		HostAdd:        c.StringSlice("add-host"),
		Image:          imageName,
		ImageID:        imageID,
		Interactive:    c.Bool("interactive"),
		IP6Address:     c.String("ipv6"),
		IPAddress:      c.String("ip"),
		Labels:         labels,
		LinkLocalIP:    c.StringSlice("link-local-ip"),
		LogDriver:      c.String("log-driver"),
		LogDriverOpt:   c.StringSlice("log-opt"),
		MacAddress:     c.String("mac-address"),
		Name:           c.String("name"),
		Network:        networkMode,
		NetworkAlias:   c.StringSlice("network-alias"),
		IpcMode:        ipcMode,
		NetMode:        container.NetworkMode(networkMode),
		UtsMode:        utsMode,
		PidMode:        pidMode,
		Pod:            c.String("pod"),
		Privileged:     c.Bool("privileged"),
		Publish:        c.StringSlice("publish"),
		PublishAll:     c.Bool("publish-all"),
		PortBindings:   portBindings,
		Quiet:          c.Bool("quiet"),
		ReadOnlyRootfs: c.Bool("read-only"),
		Resources: createResourceConfig{
			BlkioWeight:       blkioWeight,
			BlkioWeightDevice: c.StringSlice("blkio-weight-device"),
			CPUShares:         c.Uint64("cpu-shares"),
			CPUPeriod:         c.Uint64("cpu-period"),
			CPUsetCPUs:        c.String("cpuset-cpus"),
			CPUsetMems:        c.String("cpuset-mems"),
			CPUQuota:          c.Int64("cpu-quota"),
			CPURtPeriod:       c.Uint64("cpu-rt-period"),
			CPURtRuntime:      c.Int64("cpu-rt-runtime"),
			CPUs:              c.Float64("cpus"),
			DeviceReadBps:     c.StringSlice("device-read-bps"),
			DeviceReadIOps:    c.StringSlice("device-read-iops"),
			DeviceWriteBps:    c.StringSlice("device-write-bps"),
			DeviceWriteIOps:   c.StringSlice("device-write-iops"),
			DisableOomKiller:  c.Bool("oom-kill-disable"),
			ShmSize:           shmSize,
			Memory:            memoryLimit,
			MemoryReservation: memoryReservation,
			MemorySwap:        memorySwap,
			MemorySwappiness:  c.Int("memory-swappiness"),
			KernelMemory:      memoryKernel,
			OomScoreAdj:       c.Int("oom-score-adj"),

			PidsLimit: c.Int64("pids-limit"),
			Ulimit:    c.StringSlice("ulimit"),
		},
		Rm:          c.Bool("rm"),
		ShmDir:      shmDir,
		StopSignal:  stopSignal,
		StopTimeout: c.Uint("stop-timeout"),
		Sysctl:      sysctl,
		Tmpfs:       c.StringSlice("tmpfs"),
		Tty:         tty,
		User:        user,
		Volumes:     c.StringSlice("volume"),
		WorkDir:     workDir,
	}

	if !config.Privileged {
		if err := parseSecurityOpt(config, c.StringSlice("security-opt")); err != nil {
			return nil, err
		}
	}
	config.SecurityOpts = c.StringSlice("security-opt")
	warnings, err := verifyContainerResources(config, false)
	if err != nil {
		return nil, err
	}
	for _, warning := range warnings {
		fmt.Fprintln(os.Stderr, warning)
	}
	return config, nil
}

//CreatePortBinding takes port (int) and IP (string) and creates an array of portbinding structs
func CreatePortBinding(hostPort int, hostIP string) []nat.PortBinding {
	pb := nat.PortBinding{
		HostPort: strconv.Itoa(hostPort),
	}
	pb.HostIP = hostIP
	return []nat.PortBinding{pb}
}