summaryrefslogtreecommitdiff
path: root/pkg/adapter/runtime.go
blob: 121f857559698a2cd454607e1667b47094987f87 (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
// +build !remoteclient

package adapter

import (
	"bufio"
	"context"
	"io"
	"io/ioutil"
	"os"
	"text/template"

	"github.com/containers/buildah"
	"github.com/containers/buildah/imagebuildah"
	"github.com/containers/buildah/pkg/formats"
	"github.com/containers/buildah/pkg/parse"
	"github.com/containers/image/v5/docker/reference"
	"github.com/containers/image/v5/types"
	"github.com/containers/libpod/cmd/podman/cliconfig"
	"github.com/containers/libpod/cmd/podman/libpodruntime"
	"github.com/containers/libpod/cmd/podman/shared"
	"github.com/containers/libpod/libpod"
	"github.com/containers/libpod/libpod/define"
	"github.com/containers/libpod/libpod/events"
	"github.com/containers/libpod/libpod/image"
	"github.com/containers/libpod/pkg/rootless"
	"github.com/containers/libpod/pkg/util"
	"github.com/containers/storage/pkg/archive"
	"github.com/pkg/errors"
	v1 "k8s.io/api/core/v1"
)

// LocalRuntime describes a typical libpod runtime
type LocalRuntime struct {
	*libpod.Runtime
	Remote bool
}

// ContainerImage ...
type ContainerImage struct {
	*image.Image
}

// Container ...
type Container struct {
	*libpod.Container
}

// Pod encapsulates the libpod.Pod structure, helps with remote vs. local
type Pod struct {
	*libpod.Pod
}

// Volume ...
type Volume struct {
	*libpod.Volume
}

// VolumeFilter is for filtering volumes on the client
type VolumeFilter func(*Volume) bool

// GetRuntimeNoStore returns a localruntime struct with an embedded runtime but
// without a configured storage.
func GetRuntimeNoStore(ctx context.Context, c *cliconfig.PodmanCommand) (*LocalRuntime, error) {
	runtime, err := libpodruntime.GetRuntimeNoStore(ctx, c)
	if err != nil {
		return nil, err
	}
	return getRuntime(runtime)
}

// GetRuntime returns a LocalRuntime struct with the actual runtime embedded in it
func GetRuntime(ctx context.Context, c *cliconfig.PodmanCommand) (*LocalRuntime, error) {
	runtime, err := libpodruntime.GetRuntime(ctx, c)
	if err != nil {
		return nil, err
	}
	return getRuntime(runtime)
}

func getRuntime(runtime *libpod.Runtime) (*LocalRuntime, error) {
	return &LocalRuntime{
		Runtime: runtime,
	}, nil
}

// GetFilteredImages returns a slice of images in containerimages that are "filtered"
func (r *LocalRuntime) GetFilteredImages(filters []string, rwOnly bool) ([]*ContainerImage, error) {
	images, err := r.ImageRuntime().GetImagesWithFilters(filters)
	if err != nil {
		return nil, err
	}
	return r.ImagestoContainerImages(images, rwOnly)
}

// GetImages returns a slice of images in containerimages
func (r *LocalRuntime) GetImages() ([]*ContainerImage, error) {
	return r.getImages(false)
}

// GetRWImages returns a slice of read/write images in containerimages
func (r *LocalRuntime) GetRWImages() ([]*ContainerImage, error) {
	return r.getImages(true)
}

func (r *LocalRuntime) getImages(rwOnly bool) ([]*ContainerImage, error) {
	images, err := r.Runtime.ImageRuntime().GetImages()
	if err != nil {
		return nil, err
	}
	return r.ImagestoContainerImages(images, rwOnly)
}

// ImagestoContainerImages converts the slice of *image.Image to a slice of
// *ContainerImage.  ReadOnly images are skipped when rwOnly is set.
func (r *LocalRuntime) ImagestoContainerImages(images []*image.Image, rwOnly bool) ([]*ContainerImage, error) {
	var containerImages []*ContainerImage
	for _, i := range images {
		if rwOnly && i.IsReadOnly() {
			continue
		}
		containerImages = append(containerImages, &ContainerImage{i})
	}
	return containerImages, nil
}

// NewImageFromLocal returns a containerimage representation of a image from local storage
func (r *LocalRuntime) NewImageFromLocal(name string) (*ContainerImage, error) {
	img, err := r.Runtime.ImageRuntime().NewFromLocal(name)
	if err != nil {
		return nil, err
	}
	return &ContainerImage{img}, nil
}

// LoadFromArchiveReference calls into local storage to load an image from an archive
func (r *LocalRuntime) LoadFromArchiveReference(ctx context.Context, srcRef types.ImageReference, signaturePolicyPath string, writer io.Writer) ([]*ContainerImage, error) {
	var containerImages []*ContainerImage
	imgs, err := r.Runtime.ImageRuntime().LoadFromArchiveReference(ctx, srcRef, signaturePolicyPath, writer)
	if err != nil {
		return nil, err
	}
	for _, i := range imgs {
		ci := ContainerImage{i}
		containerImages = append(containerImages, &ci)
	}
	return containerImages, nil
}

// New calls into local storage to look for an image in local storage or to pull it
func (r *LocalRuntime) New(ctx context.Context, name, signaturePolicyPath, authfile string, writer io.Writer, dockeroptions *image.DockerRegistryOptions, signingoptions image.SigningOptions, label *string, pullType util.PullType) (*ContainerImage, error) {
	img, err := r.Runtime.ImageRuntime().New(ctx, name, signaturePolicyPath, authfile, writer, dockeroptions, signingoptions, label, pullType)
	if err != nil {
		return nil, err
	}
	return &ContainerImage{img}, nil
}

// RemoveImage calls into local storage and removes an image
func (r *LocalRuntime) RemoveImage(ctx context.Context, img *ContainerImage, force bool) (*image.ImageDeleteResponse, error) {
	return r.Runtime.RemoveImage(ctx, img.Image, force)
}

// PruneImages is wrapper into PruneImages within the image pkg
func (r *LocalRuntime) PruneImages(ctx context.Context, all bool, filter []string) ([]string, error) {
	return r.ImageRuntime().PruneImages(ctx, all, filter)
}

// Export is a wrapper to container export to a tarfile
func (r *LocalRuntime) Export(name string, path string) error {
	ctr, err := r.Runtime.LookupContainer(name)
	if err != nil {
		return errors.Wrapf(err, "error looking up container %q", name)
	}
	return ctr.Export(path)
}

// Import is a wrapper to import a container image
func (r *LocalRuntime) Import(ctx context.Context, source, reference string, changes []string, history string, quiet bool) (string, error) {
	return r.Runtime.Import(ctx, source, reference, changes, history, quiet)
}

// CreateVolume is a wrapper to create volumes
func (r *LocalRuntime) CreateVolume(ctx context.Context, c *cliconfig.VolumeCreateValues, labels, opts map[string]string) (string, error) {
	var (
		options []libpod.VolumeCreateOption
		volName string
	)

	if len(c.InputArgs) > 0 {
		volName = c.InputArgs[0]
		options = append(options, libpod.WithVolumeName(volName))
	}

	if c.Flag("driver").Changed {
		options = append(options, libpod.WithVolumeDriver(c.Driver))
	}

	if len(labels) != 0 {
		options = append(options, libpod.WithVolumeLabels(labels))
	}

	if len(opts) != 0 {
		// We need to process -o for uid, gid
		parsedOptions, err := shared.ParseVolumeOptions(opts)
		if err != nil {
			return "", err
		}
		options = append(options, parsedOptions...)
	}
	newVolume, err := r.NewVolume(ctx, options...)
	if err != nil {
		return "", err
	}
	return newVolume.Name(), nil
}

// RemoveVolumes is a wrapper to remove volumes
func (r *LocalRuntime) RemoveVolumes(ctx context.Context, c *cliconfig.VolumeRmValues) ([]string, map[string]error, error) {
	return shared.SharedRemoveVolumes(ctx, r.Runtime, c.InputArgs, c.All, c.Force)
}

// Push is a wrapper to push an image to a registry
func (r *LocalRuntime) Push(ctx context.Context, srcName, destination, manifestMIMEType, authfile, digestfile, signaturePolicyPath string, writer io.Writer, forceCompress bool, signingOptions image.SigningOptions, dockerRegistryOptions *image.DockerRegistryOptions, additionalDockerArchiveTags []reference.NamedTagged) error {
	newImage, err := r.ImageRuntime().NewFromLocal(srcName)
	if err != nil {
		return err
	}
	return newImage.PushImageToHeuristicDestination(ctx, destination, manifestMIMEType, authfile, digestfile, signaturePolicyPath, writer, forceCompress, signingOptions, dockerRegistryOptions, nil)
}

// InspectVolumes returns a slice of volumes based on an arg list or --all
func (r *LocalRuntime) InspectVolumes(ctx context.Context, c *cliconfig.VolumeInspectValues) ([]*libpod.InspectVolumeData, error) {
	var (
		volumes []*libpod.Volume
		err     error
	)

	if c.All {
		volumes, err = r.GetAllVolumes()
	} else {
		for _, v := range c.InputArgs {
			vol, err := r.LookupVolume(v)
			if err != nil {
				return nil, err
			}
			volumes = append(volumes, vol)
		}
	}
	if err != nil {
		return nil, err
	}

	inspectVols := make([]*libpod.InspectVolumeData, 0, len(volumes))
	for _, vol := range volumes {
		inspectOut, err := vol.Inspect()
		if err != nil {
			return nil, errors.Wrapf(err, "error inspecting volume %s", vol.Name())
		}
		inspectVols = append(inspectVols, inspectOut)
	}

	return inspectVols, nil
}

// Volumes returns a slice of localruntime volumes
func (r *LocalRuntime) Volumes(ctx context.Context) ([]*Volume, error) {
	vols, err := r.GetAllVolumes()
	if err != nil {
		return nil, err
	}
	return libpodVolumeToVolume(vols), nil
}

// libpodVolumeToVolume converts a slice of libpod volumes to a slice
// of localruntime volumes (same as libpod)
func libpodVolumeToVolume(volumes []*libpod.Volume) []*Volume {
	var vols []*Volume
	for _, v := range volumes {
		newVol := Volume{
			v,
		}
		vols = append(vols, &newVol)
	}
	return vols
}

// Build is the wrapper to build images
func (r *LocalRuntime) Build(ctx context.Context, c *cliconfig.BuildValues, options imagebuildah.BuildOptions, dockerfiles []string) (string, reference.Canonical, error) {
	namespaceOptions, networkPolicy, err := parse.NamespaceOptions(c.PodmanCommand.Command)
	if err != nil {
		return "", nil, errors.Wrapf(err, "error parsing namespace-related options")
	}
	usernsOption, idmappingOptions, err := parse.IDMappingOptions(c.PodmanCommand.Command, options.Isolation)
	if err != nil {
		return "", nil, errors.Wrapf(err, "error parsing ID mapping options")
	}
	namespaceOptions.AddOrReplace(usernsOption...)

	systemContext, err := parse.SystemContextFromOptions(c.PodmanCommand.Command)
	if err != nil {
		return "", nil, errors.Wrapf(err, "error building system context")
	}

	authfile := c.Authfile
	if len(c.Authfile) == 0 {
		authfile = os.Getenv("REGISTRY_AUTH_FILE")
	}

	systemContext.AuthFilePath = authfile
	commonOpts, err := parse.CommonBuildOptions(c.PodmanCommand.Command)
	if err != nil {
		return "", nil, err
	}

	options.NamespaceOptions = namespaceOptions
	options.ConfigureNetwork = networkPolicy
	options.IDMappingOptions = idmappingOptions
	options.CommonBuildOpts = commonOpts
	options.SystemContext = systemContext

	if c.GlobalFlags.Runtime != "" {
		options.Runtime = c.GlobalFlags.Runtime
	} else {
		options.Runtime = r.GetOCIRuntimePath()
	}

	if c.Quiet {
		options.ReportWriter = ioutil.Discard
	}

	if rootless.IsRootless() {
		options.Isolation = buildah.IsolationOCIRootless
	}

	return r.Runtime.Build(ctx, options, dockerfiles...)
}

// PruneVolumes is a wrapper function for libpod PruneVolumes
func (r *LocalRuntime) PruneVolumes(ctx context.Context) ([]string, []error) {
	return r.Runtime.PruneVolumes(ctx)
}

// SaveImage is a wrapper function for saving an image to the local filesystem
func (r *LocalRuntime) SaveImage(ctx context.Context, c *cliconfig.SaveValues) error {
	source := c.InputArgs[0]
	additionalTags := c.InputArgs[1:]

	newImage, err := r.Runtime.ImageRuntime().NewFromLocal(source)
	if err != nil {
		return err
	}
	return newImage.Save(ctx, source, c.Format, c.Output, additionalTags, c.Quiet, c.Compress)
}

// LoadImage is a wrapper function for libpod LoadImage
func (r *LocalRuntime) LoadImage(ctx context.Context, name string, cli *cliconfig.LoadValues) (string, error) {
	var (
		writer io.Writer
	)
	if !cli.Quiet {
		writer = os.Stderr
	}
	return r.Runtime.LoadImage(ctx, name, cli.Input, writer, cli.SignaturePolicy)
}

// IsImageNotFound checks if the error indicates that no image was found.
func IsImageNotFound(err error) bool {
	return errors.Cause(err) == image.ErrNoSuchImage
}

// HealthCheck is a wrapper to same named function in libpod
func (r *LocalRuntime) HealthCheck(c *cliconfig.HealthCheckValues) (string, error) {
	output := "unhealthy"
	status, err := r.Runtime.HealthCheck(c.InputArgs[0])
	if status == libpod.HealthCheckSuccess {
		output = "healthy"
	}
	return output, err
}

// Events is a wrapper to libpod to obtain libpod/podman events
func (r *LocalRuntime) Events(c *cliconfig.EventValues) error {
	var (
		fromStart   bool
		eventsError error
	)
	var tmpl *template.Template
	if c.Format != formats.JSONString {
		template, err := template.New("events").Parse(c.Format)
		if err != nil {
			return err
		}
		tmpl = template
	}
	if len(c.Since) > 0 || len(c.Until) > 0 {
		fromStart = true
	}
	eventChannel := make(chan *events.Event)
	go func() {
		readOpts := events.ReadOptions{FromStart: fromStart, Stream: c.Stream, Filters: c.Filter, EventChannel: eventChannel, Since: c.Since, Until: c.Until}
		eventsError = r.Runtime.Events(readOpts)
	}()

	if eventsError != nil {
		return eventsError
	}
	w := bufio.NewWriter(os.Stdout)
	for event := range eventChannel {
		if c.Format == formats.JSONString {
			jsonStr, err := event.ToJSONString()
			if err != nil {
				return errors.Wrapf(err, "unable to format json")
			}
			if _, err := w.Write([]byte(jsonStr)); err != nil {
				return err
			}
		} else if len(c.Format) > 0 {
			if err := tmpl.Execute(w, event); err != nil {
				return err
			}
		} else {
			if _, err := w.Write([]byte(event.ToHumanReadable())); err != nil {
				return err
			}
		}
		if _, err := w.Write([]byte("\n")); err != nil {
			return err
		}
		if err := w.Flush(); err != nil {
			return err
		}
	}
	return nil
}

// Diff shows the difference in two objects
func (r *LocalRuntime) Diff(c *cliconfig.DiffValues, to string) ([]archive.Change, error) {
	return r.Runtime.GetDiff("", to)
}

// GenerateKube creates kubernetes email from containers and pods
func (r *LocalRuntime) GenerateKube(c *cliconfig.GenerateKubeValues) (*v1.Pod, *v1.Service, error) {
	return shared.GenerateKube(c.InputArgs[0], c.Service, r.Runtime)
}

// GetPodsByStatus returns a slice of pods filtered by a libpod status
func (r *LocalRuntime) GetPodsByStatus(statuses []string) ([]*libpod.Pod, error) {

	filterFunc := func(p *libpod.Pod) bool {
		state, _ := shared.GetPodStatus(p)
		for _, status := range statuses {
			if state == status {
				return true
			}
		}
		return false
	}

	pods, err := r.Runtime.Pods(filterFunc)
	if err != nil {
		return nil, err
	}

	return pods, nil
}

// GetVersion is an alias to satisfy interface{}
func (r *LocalRuntime) GetVersion() (define.Version, error) {
	return define.GetVersion()
}

// RemoteEndpoint resolve interface requirement
func (r *LocalRuntime) RemoteEndpoint() (*Endpoint, error) {
	return nil, errors.New("RemoteEndpoint() not implemented for local connection")
}