summaryrefslogtreecommitdiff
path: root/cmd/podman/common/create_opts.go
blob: 67d40ac43db4f09dd64d1bd9cd6af2949d2c1c37 (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
package common

import (
	"fmt"
	"net"
	"path/filepath"
	"strconv"
	"strings"

	"github.com/containers/podman/v2/cmd/podman/registry"
	"github.com/containers/podman/v2/pkg/api/handlers"
	"github.com/containers/podman/v2/pkg/cgroups"
	"github.com/containers/podman/v2/pkg/domain/entities"
	"github.com/containers/podman/v2/pkg/rootless"
	"github.com/containers/podman/v2/pkg/specgen"
)

type ContainerCLIOpts struct {
	Annotation        []string
	Attach            []string
	Authfile          string
	BlkIOWeight       string
	BlkIOWeightDevice []string
	CapAdd            []string
	CapDrop           []string
	CgroupNS          string
	CGroupsMode       string
	CGroupParent      string
	CIDFile           string
	ConmonPIDFile     string
	CPUPeriod         uint64
	CPUQuota          int64
	CPURTPeriod       uint64
	CPURTRuntime      int64
	CPUShares         uint64
	CPUS              float64
	CPUSetCPUs        string
	CPUSetMems        string
	Devices           []string
	DeviceCGroupRule  []string
	DeviceReadBPs     []string
	DeviceReadIOPs    []string
	DeviceWriteBPs    []string
	DeviceWriteIOPs   []string
	Entrypoint        *string
	Env               []string
	EnvHost           bool
	EnvFile           []string
	Expose            []string
	GIDMap            []string
	GroupAdd          []string
	HealthCmd         string
	HealthInterval    string
	HealthRetries     uint
	HealthStartPeriod string
	HealthTimeout     string
	Hostname          string
	HTTPProxy         bool
	ImageVolume       string
	Init              bool
	InitPath          string
	Interactive       bool
	IPC               string
	KernelMemory      string
	Label             []string
	LabelFile         []string
	LogDriver         string
	LogOptions        []string
	Memory            string
	MemoryReservation string
	MemorySwap        string
	MemorySwappiness  int64
	Name              string
	NoHealthCheck     bool
	OOMKillDisable    bool
	OOMScoreAdj       int
	Arch              string
	OS                string
	Variant           string
	PID               string
	PIDsLimit         *int64
	Platform          string
	Pod               string
	PodIDFile         string
	PreserveFDs       uint
	Privileged        bool
	PublishAll        bool
	Pull              string
	Quiet             bool
	ReadOnly          bool
	ReadOnlyTmpFS     bool
	Restart           string
	Replace           bool
	Rm                bool
	RootFS            bool
	Secrets           []string
	SecurityOpt       []string
	SdNotifyMode      string
	ShmSize           string
	SignaturePolicy   string
	StopSignal        string
	StopTimeout       uint
	StorageOpt        []string
	SubUIDName        string
	SubGIDName        string
	Sysctl            []string
	Systemd           string
	TmpFS             []string
	TTY               bool
	Timezone          string
	Umask             string
	UIDMap            []string
	Ulimit            []string
	User              string
	UserNS            string
	UTS               string
	Mount             []string
	Volume            []string
	VolumesFrom       []string
	Workdir           string
	SeccompPolicy     string

	Net *entities.NetOptions

	CgroupConf []string
}

func stringMaptoArray(m map[string]string) []string {
	a := make([]string, 0, len(m))
	for k, v := range m {
		a = append(a, fmt.Sprintf("%s=%s", k, v))
	}
	return a
}

// ContainerCreateToContainerCLIOpts converts a compat input struct to cliopts so it can be converted to
// a specgen spec.
func ContainerCreateToContainerCLIOpts(cc handlers.CreateContainerConfig, cgroupsManager string) (*ContainerCLIOpts, []string, error) {
	var (
		capAdd     []string
		cappDrop   []string
		entrypoint *string
		init       bool
		specPorts  []specgen.PortMapping
	)

	if cc.HostConfig.Init != nil {
		init = *cc.HostConfig.Init
	}

	// Iterate devices and convert back to string
	devices := make([]string, 0, len(cc.HostConfig.Devices))
	for _, dev := range cc.HostConfig.Devices {
		devices = append(devices, fmt.Sprintf("%s:%s:%s", dev.PathOnHost, dev.PathInContainer, dev.CgroupPermissions))
	}

	// iterate blkreaddevicebps
	readBps := make([]string, 0, len(cc.HostConfig.BlkioDeviceReadBps))
	for _, dev := range cc.HostConfig.BlkioDeviceReadBps {
		readBps = append(readBps, dev.String())
	}

	// iterate blkreaddeviceiops
	readIops := make([]string, 0, len(cc.HostConfig.BlkioDeviceReadIOps))
	for _, dev := range cc.HostConfig.BlkioDeviceReadIOps {
		readIops = append(readIops, dev.String())
	}

	// iterate blkwritedevicebps
	writeBps := make([]string, 0, len(cc.HostConfig.BlkioDeviceWriteBps))
	for _, dev := range cc.HostConfig.BlkioDeviceWriteBps {
		writeBps = append(writeBps, dev.String())
	}

	// iterate blkwritedeviceiops
	writeIops := make([]string, 0, len(cc.HostConfig.BlkioDeviceWriteIOps))
	for _, dev := range cc.HostConfig.BlkioDeviceWriteIOps {
		writeIops = append(writeIops, dev.String())
	}

	// entrypoint
	// can be a string or slice. if it is a slice, we need to
	// marshall it to json; otherwise it should just be the string
	// value
	if len(cc.Config.Entrypoint) > 0 {
		entrypoint = &cc.Config.Entrypoint[0]
		if len(cc.Config.Entrypoint) > 1 {
			b, err := json.Marshal(cc.Config.Entrypoint)
			if err != nil {
				return nil, nil, err
			}
			var jsonString = string(b)
			entrypoint = &jsonString
		}
	}

	// expose ports
	expose := make([]string, 0, len(cc.Config.ExposedPorts))
	for p := range cc.Config.ExposedPorts {
		expose = append(expose, fmt.Sprintf("%s/%s", p.Port(), p.Proto()))
	}

	// mounts type=tmpfs/bind,source=,dest=,opt=val
	// TODO options
	mounts := make([]string, 0, len(cc.HostConfig.Mounts))
	for _, m := range cc.HostConfig.Mounts {
		mount := fmt.Sprintf("type=%s", m.Type)
		if len(m.Source) > 0 {
			mount += fmt.Sprintf(",source=%s", m.Source)
		}
		if len(m.Target) > 0 {
			mount += fmt.Sprintf(",dst=%s", m.Target)
		}
		mounts = append(mounts, mount)
	}

	// dns
	dns := make([]net.IP, 0, len(cc.HostConfig.DNS))
	for _, d := range cc.HostConfig.DNS {
		dns = append(dns, net.ParseIP(d))
	}

	// publish
	for port, pbs := range cc.HostConfig.PortBindings {
		for _, pb := range pbs {
			hostport, err := strconv.Atoi(pb.HostPort)
			if err != nil {
				return nil, nil, err
			}
			tmpPort := specgen.PortMapping{
				HostIP:        pb.HostIP,
				ContainerPort: uint16(port.Int()),
				HostPort:      uint16(hostport),
				Range:         0,
				Protocol:      port.Proto(),
			}
			specPorts = append(specPorts, tmpPort)
		}
	}

	// netMode
	nsmode, _, err := specgen.ParseNetworkNamespace(string(cc.HostConfig.NetworkMode))
	if err != nil {
		return nil, nil, err
	}

	netNS := specgen.Namespace{
		NSMode: nsmode.NSMode,
		Value:  nsmode.Value,
	}

	// network
	// Note: we cannot emulate compat exactly here. we only allow specifics of networks to be
	// defined when there is only one network.
	netInfo := entities.NetOptions{
		AddHosts:     cc.HostConfig.ExtraHosts,
		DNSOptions:   cc.HostConfig.DNSOptions,
		DNSSearch:    cc.HostConfig.DNSSearch,
		DNSServers:   dns,
		Network:      netNS,
		PublishPorts: specPorts,
	}

	// network names
	switch {
	case len(cc.NetworkingConfig.EndpointsConfig) > 0:
		var aliases []string

		endpointsConfig := cc.NetworkingConfig.EndpointsConfig
		cniNetworks := make([]string, 0, len(endpointsConfig))
		for netName, endpoint := range endpointsConfig {

			cniNetworks = append(cniNetworks, netName)

			if endpoint == nil {
				continue
			}
			if len(endpoint.Aliases) > 0 {
				aliases = append(aliases, endpoint.Aliases...)
			}
		}

		// static IP and MAC
		if len(endpointsConfig) == 1 {
			for _, ep := range endpointsConfig {
				if ep == nil {
					continue
				}
				// if IP address is provided
				if len(ep.IPAddress) > 0 {
					staticIP := net.ParseIP(ep.IPAddress)
					netInfo.StaticIP = &staticIP
				}
				// If MAC address is provided
				if len(ep.MacAddress) > 0 {
					staticMac, err := net.ParseMAC(ep.MacAddress)
					if err != nil {
						return nil, nil, err
					}
					netInfo.StaticMAC = &staticMac
				}
				break
			}
		}
		netInfo.Aliases = aliases
		netInfo.CNINetworks = cniNetworks
	case len(cc.HostConfig.NetworkMode) > 0:
		netInfo.CNINetworks = []string{string(cc.HostConfig.NetworkMode)}
	}

	// Note: several options here are marked as "don't need". this is based
	// on speculation by Matt and I. We think that these come into play later
	// like with start. We believe this is just a difference in podman/compat
	cliOpts := ContainerCLIOpts{
		// Attach:            nil, // don't need?
		Authfile:     "",
		CapAdd:       append(capAdd, cc.HostConfig.CapAdd...),
		CapDrop:      append(cappDrop, cc.HostConfig.CapDrop...),
		CGroupParent: cc.HostConfig.CgroupParent,
		CIDFile:      cc.HostConfig.ContainerIDFile,
		CPUPeriod:    uint64(cc.HostConfig.CPUPeriod),
		CPUQuota:     cc.HostConfig.CPUQuota,
		CPURTPeriod:  uint64(cc.HostConfig.CPURealtimePeriod),
		CPURTRuntime: cc.HostConfig.CPURealtimeRuntime,
		CPUShares:    uint64(cc.HostConfig.CPUShares),
		// CPUS:              0, // don't need?
		CPUSetCPUs: cc.HostConfig.CpusetCpus,
		CPUSetMems: cc.HostConfig.CpusetMems,
		// Detach:            false, // don't need
		// DetachKeys:        "",    // don't need
		Devices:          devices,
		DeviceCGroupRule: nil,
		DeviceReadBPs:    readBps,
		DeviceReadIOPs:   readIops,
		DeviceWriteBPs:   writeBps,
		DeviceWriteIOPs:  writeIops,
		Entrypoint:       entrypoint,
		Env:              cc.Config.Env,
		Expose:           expose,
		GroupAdd:         cc.HostConfig.GroupAdd,
		Hostname:         cc.Config.Hostname,
		ImageVolume:      "bind",
		Init:             init,
		Interactive:      cc.Config.OpenStdin,
		IPC:              string(cc.HostConfig.IpcMode),
		Label:            stringMaptoArray(cc.Config.Labels),
		LogDriver:        cc.HostConfig.LogConfig.Type,
		LogOptions:       stringMaptoArray(cc.HostConfig.LogConfig.Config),
		Name:             cc.Name,
		OOMScoreAdj:      cc.HostConfig.OomScoreAdj,
		Arch:             "",
		OS:               "",
		Variant:          "",
		PID:              string(cc.HostConfig.PidMode),
		PIDsLimit:        cc.HostConfig.PidsLimit,
		Privileged:       cc.HostConfig.Privileged,
		PublishAll:       cc.HostConfig.PublishAllPorts,
		Quiet:            false,
		ReadOnly:         cc.HostConfig.ReadonlyRootfs,
		ReadOnlyTmpFS:    true, // podman default
		Rm:               cc.HostConfig.AutoRemove,
		SecurityOpt:      cc.HostConfig.SecurityOpt,
		StopSignal:       cc.Config.StopSignal,
		StorageOpt:       stringMaptoArray(cc.HostConfig.StorageOpt),
		Sysctl:           stringMaptoArray(cc.HostConfig.Sysctls),
		Systemd:          "true", // podman default
		TmpFS:            stringMaptoArray(cc.HostConfig.Tmpfs),
		TTY:              cc.Config.Tty,
		User:             cc.Config.User,
		UserNS:           string(cc.HostConfig.UsernsMode),
		UTS:              string(cc.HostConfig.UTSMode),
		Mount:            mounts,
		VolumesFrom:      cc.HostConfig.VolumesFrom,
		Workdir:          cc.Config.WorkingDir,
		Net:              &netInfo,
	}
	if !rootless.IsRootless() {
		var ulimits []string
		if len(cc.HostConfig.Ulimits) > 0 {
			for _, ul := range cc.HostConfig.Ulimits {
				ulimits = append(ulimits, ul.String())
			}
			cliOpts.Ulimit = ulimits
		}
	}

	// volumes
	volDestinations := make(map[string]bool)
	for _, vol := range cc.HostConfig.Binds {
		cliOpts.Volume = append(cliOpts.Volume, vol)
		// Extract the destination so we don't add duplicate mounts in
		// the volumes phase.
		splitVol := strings.SplitN(vol, ":", 3)
		switch len(splitVol) {
		case 1:
			volDestinations[vol] = true
		default:
			volDestinations[splitVol[1]] = true
		}
	}
	// Anonymous volumes are added differently from other volumes, in their
	// own special field, for reasons known only to Docker. Still use the
	// format of `-v` so we can just append them in there.
	// Unfortunately, these may be duplicates of existing mounts in Binds.
	// So... We need to catch that.
	for vol := range cc.Volumes {
		if _, ok := volDestinations[filepath.Clean(vol)]; ok {
			continue
		}
		cliOpts.Volume = append(cliOpts.Volume, vol)
	}
	if len(cc.HostConfig.BlkioWeightDevice) > 0 {
		devices := make([]string, 0, len(cc.HostConfig.BlkioWeightDevice))
		for _, d := range cc.HostConfig.BlkioWeightDevice {
			devices = append(devices, d.String())
		}
		cliOpts.BlkIOWeightDevice = devices
	}
	if cc.HostConfig.BlkioWeight > 0 {
		cliOpts.BlkIOWeight = strconv.Itoa(int(cc.HostConfig.BlkioWeight))
	}

	if cc.HostConfig.Memory > 0 {
		cliOpts.Memory = strconv.Itoa(int(cc.HostConfig.Memory))
	}

	if cc.HostConfig.MemoryReservation > 0 {
		cliOpts.MemoryReservation = strconv.Itoa(int(cc.HostConfig.MemoryReservation))
	}

	cgroupsv2, err := cgroups.IsCgroup2UnifiedMode()
	if err != nil {
		return nil, nil, err
	}
	if cc.HostConfig.MemorySwap > 0 && (!rootless.IsRootless() || (rootless.IsRootless() && cgroupsv2)) {
		cliOpts.MemorySwap = strconv.Itoa(int(cc.HostConfig.MemorySwap))
	}

	if cc.Config.StopTimeout != nil {
		cliOpts.StopTimeout = uint(*cc.Config.StopTimeout)
	}

	if cc.HostConfig.ShmSize > 0 {
		cliOpts.ShmSize = strconv.Itoa(int(cc.HostConfig.ShmSize))
	}

	if cc.HostConfig.KernelMemory > 0 {
		cliOpts.KernelMemory = strconv.Itoa(int(cc.HostConfig.KernelMemory))
	}
	if len(cc.HostConfig.RestartPolicy.Name) > 0 {
		policy := cc.HostConfig.RestartPolicy.Name
		// only add restart count on failure
		if cc.HostConfig.RestartPolicy.IsOnFailure() {
			policy += fmt.Sprintf(":%d", cc.HostConfig.RestartPolicy.MaximumRetryCount)
		}
		cliOpts.Restart = policy
	}

	if cc.HostConfig.MemorySwappiness != nil && (!rootless.IsRootless() || rootless.IsRootless() && cgroupsv2 && cgroupsManager == "systemd") {
		cliOpts.MemorySwappiness = *cc.HostConfig.MemorySwappiness
	} else {
		cliOpts.MemorySwappiness = -1
	}
	if cc.HostConfig.OomKillDisable != nil {
		cliOpts.OOMKillDisable = *cc.HostConfig.OomKillDisable
	}
	if cc.Config.Healthcheck != nil {
		cliOpts.HealthCmd = strings.Join(cc.Config.Healthcheck.Test, " ")
		cliOpts.HealthInterval = cc.Config.Healthcheck.Interval.String()
		cliOpts.HealthRetries = uint(cc.Config.Healthcheck.Retries)
		cliOpts.HealthStartPeriod = cc.Config.Healthcheck.StartPeriod.String()
		cliOpts.HealthTimeout = cc.Config.Healthcheck.Timeout.String()
	}

	// specgen assumes the image name is arg[0]
	cmd := []string{cc.Config.Image}
	cmd = append(cmd, cc.Config.Cmd...)
	return &cliOpts, cmd, nil
}

func ulimits() []string {
	if !registry.IsRemote() {
		return containerConfig.Ulimits()
	}
	return nil
}

func cgroupConfig() string {
	if !registry.IsRemote() {
		return containerConfig.Cgroups()
	}
	return ""
}

func devices() []string {
	if !registry.IsRemote() {
		return containerConfig.Devices()
	}
	return nil
}

func env() []string {
	if !registry.IsRemote() {
		return containerConfig.Env()
	}
	return nil
}

func initPath() string {
	if !registry.IsRemote() {
		return containerConfig.InitPath()
	}
	return ""
}

func pidsLimit() int64 {
	if !registry.IsRemote() {
		return containerConfig.PidsLimit()
	}
	return -1
}

func policy() string {
	if !registry.IsRemote() {
		return containerConfig.Engine.PullPolicy
	}
	return ""
}

func shmSize() string {
	if !registry.IsRemote() {
		return containerConfig.ShmSize()
	}
	return ""
}

func volumes() []string {
	if !registry.IsRemote() {
		return containerConfig.Volumes()
	}
	return nil
}

func logDriver() string {
	if !registry.IsRemote() {
		return containerConfig.Containers.LogDriver
	}
	return ""
}