summaryrefslogtreecommitdiff
path: root/pkg/domain/infra/abi/images.go
blob: 0af06fb8946cf9396d4ffac0fea194a95e6b5967 (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
package abi

import (
	"context"
	"fmt"
	"io"
	"os"
	"strings"

	"github.com/containers/common/pkg/config"
	"github.com/containers/image/v5/docker"
	dockerarchive "github.com/containers/image/v5/docker/archive"
	"github.com/containers/image/v5/docker/reference"
	"github.com/containers/image/v5/manifest"
	"github.com/containers/image/v5/transports/alltransports"
	"github.com/containers/image/v5/types"
	"github.com/containers/libpod/libpod/define"
	"github.com/containers/libpod/libpod/image"
	libpodImage "github.com/containers/libpod/libpod/image"
	"github.com/containers/libpod/pkg/domain/entities"
	domainUtils "github.com/containers/libpod/pkg/domain/utils"
	"github.com/containers/libpod/pkg/util"
	"github.com/containers/storage"
	"github.com/hashicorp/go-multierror"
	imgspecv1 "github.com/opencontainers/image-spec/specs-go/v1"
	"github.com/pkg/errors"
	"github.com/sirupsen/logrus"
)

func (ir *ImageEngine) Exists(_ context.Context, nameOrId string) (*entities.BoolReport, error) {
	_, err := ir.Libpod.ImageRuntime().NewFromLocal(nameOrId)
	if err != nil && errors.Cause(err) != define.ErrNoSuchImage {
		return nil, err
	}
	return &entities.BoolReport{Value: err == nil}, nil
}

func (ir *ImageEngine) Prune(ctx context.Context, opts entities.ImagePruneOptions) (*entities.ImagePruneReport, error) {
	return ir.pruneImagesHelper(ctx, opts.All, opts.Filter)
}

func (ir *ImageEngine) pruneImagesHelper(ctx context.Context, all bool, filters []string) (*entities.ImagePruneReport, error) {
	results, err := ir.Libpod.ImageRuntime().PruneImages(ctx, all, filters)
	if err != nil {
		return nil, err
	}

	report := entities.ImagePruneReport{
		Report: entities.Report{
			Id:  results,
			Err: nil,
		},
	}
	return &report, nil
}

func (ir *ImageEngine) History(ctx context.Context, nameOrId string, opts entities.ImageHistoryOptions) (*entities.ImageHistoryReport, error) {
	image, err := ir.Libpod.ImageRuntime().NewFromLocal(nameOrId)
	if err != nil {
		return nil, err
	}
	results, err := image.History(ctx)
	if err != nil {
		return nil, err
	}

	history := entities.ImageHistoryReport{
		Layers: make([]entities.ImageHistoryLayer, len(results)),
	}

	for i, layer := range results {
		history.Layers[i] = ToDomainHistoryLayer(layer)
	}
	return &history, nil
}

func ToDomainHistoryLayer(layer *libpodImage.History) entities.ImageHistoryLayer {
	l := entities.ImageHistoryLayer{}
	l.ID = layer.ID
	l.Created = *layer.Created
	l.CreatedBy = layer.CreatedBy
	copy(l.Tags, layer.Tags)
	l.Size = layer.Size
	l.Comment = layer.Comment
	return l
}

func (ir *ImageEngine) Pull(ctx context.Context, rawImage string, options entities.ImagePullOptions) (*entities.ImagePullReport, error) {
	var writer io.Writer
	if !options.Quiet {
		writer = os.Stderr
	}

	dockerPrefix := fmt.Sprintf("%s://", docker.Transport.Name())
	imageRef, err := alltransports.ParseImageName(rawImage)
	if err != nil {
		imageRef, err = alltransports.ParseImageName(fmt.Sprintf("%s%s", dockerPrefix, rawImage))
		if err != nil {
			return nil, errors.Errorf("invalid image reference %q", rawImage)
		}
	}

	// Special-case for docker-archive which allows multiple tags.
	if imageRef.Transport().Name() == dockerarchive.Transport.Name() {
		newImage, err := ir.Libpod.ImageRuntime().LoadFromArchiveReference(ctx, imageRef, options.SignaturePolicy, writer)
		if err != nil {
			return nil, err
		}
		return &entities.ImagePullReport{Images: []string{newImage[0].ID()}}, nil
	}

	var registryCreds *types.DockerAuthConfig
	if options.Credentials != "" {
		creds, err := util.ParseRegistryCreds(options.Credentials)
		if err != nil {
			return nil, err
		}
		registryCreds = creds
	}
	dockerRegistryOptions := image.DockerRegistryOptions{
		DockerRegistryCreds:         registryCreds,
		DockerCertPath:              options.CertDir,
		OSChoice:                    options.OverrideOS,
		ArchitectureChoice:          options.OverrideArch,
		DockerInsecureSkipTLSVerify: options.SkipTLSVerify,
	}

	if !options.AllTags {
		newImage, err := ir.Libpod.ImageRuntime().New(ctx, rawImage, options.SignaturePolicy, options.Authfile, writer, &dockerRegistryOptions, image.SigningOptions{}, nil, util.PullImageAlways)
		if err != nil {
			return nil, err
		}
		return &entities.ImagePullReport{Images: []string{newImage.ID()}}, nil
	}

	// --all-tags requires the docker transport
	if imageRef.Transport().Name() != docker.Transport.Name() {
		return nil, errors.New("--all-tags requires docker transport")
	}

	// Trim the docker-transport prefix.
	rawImage = strings.TrimPrefix(rawImage, docker.Transport.Name())

	// all-tags doesn't work with a tagged reference, so let's check early
	namedRef, err := reference.Parse(rawImage)
	if err != nil {
		return nil, errors.Wrapf(err, "error parsing %q", rawImage)
	}
	if _, isTagged := namedRef.(reference.Tagged); isTagged {
		return nil, errors.New("--all-tags requires a reference without a tag")

	}

	systemContext := image.GetSystemContext("", options.Authfile, false)
	tags, err := docker.GetRepositoryTags(ctx, systemContext, imageRef)
	if err != nil {
		return nil, errors.Wrapf(err, "error getting repository tags")
	}

	var foundIDs []string
	for _, tag := range tags {
		name := rawImage + ":" + tag
		newImage, err := ir.Libpod.ImageRuntime().New(ctx, name, options.SignaturePolicy, options.Authfile, writer, &dockerRegistryOptions, image.SigningOptions{}, nil, util.PullImageAlways)
		if err != nil {
			logrus.Errorf("error pulling image %q", name)
			continue
		}
		foundIDs = append(foundIDs, newImage.ID())
	}

	if len(tags) != len(foundIDs) {
		return nil, err
	}
	return &entities.ImagePullReport{Images: foundIDs}, nil
}

func (ir *ImageEngine) Inspect(ctx context.Context, namesOrIDs []string, opts entities.InspectOptions) ([]*entities.ImageInspectReport, error) {
	reports := []*entities.ImageInspectReport{}
	for _, i := range namesOrIDs {
		img, err := ir.Libpod.ImageRuntime().NewFromLocal(i)
		if err != nil {
			return nil, err
		}
		result, err := img.Inspect(ctx)
		if err != nil {
			return nil, err
		}
		report := entities.ImageInspectReport{}
		if err := domainUtils.DeepCopy(&report, result); err != nil {
			return nil, err
		}
		reports = append(reports, &report)
	}
	return reports, nil
}

func (ir *ImageEngine) Push(ctx context.Context, source string, destination string, options entities.ImagePushOptions) error {
	var writer io.Writer
	if !options.Quiet {
		writer = os.Stderr
	}

	var manifestType string
	switch options.Format {
	case "":
		// Default
	case "oci":
		manifestType = imgspecv1.MediaTypeImageManifest
	case "v2s1":
		manifestType = manifest.DockerV2Schema1SignedMediaType
	case "v2s2", "docker":
		manifestType = manifest.DockerV2Schema2MediaType
	default:
		return fmt.Errorf("unknown format %q. Choose on of the supported formats: 'oci', 'v2s1', or 'v2s2'", options.Format)
	}

	var registryCreds *types.DockerAuthConfig
	if options.Credentials != "" {
		creds, err := util.ParseRegistryCreds(options.Credentials)
		if err != nil {
			return err
		}
		registryCreds = creds
	}
	dockerRegistryOptions := image.DockerRegistryOptions{
		DockerRegistryCreds:         registryCreds,
		DockerCertPath:              options.CertDir,
		DockerInsecureSkipTLSVerify: options.SkipTLSVerify,
	}

	signOptions := image.SigningOptions{
		RemoveSignatures: options.RemoveSignatures,
		SignBy:           options.SignBy,
	}

	newImage, err := ir.Libpod.ImageRuntime().NewFromLocal(source)
	if err != nil {
		return err
	}

	return newImage.PushImageToHeuristicDestination(
		ctx,
		destination,
		manifestType,
		options.Authfile,
		options.DigestFile,
		options.SignaturePolicy,
		writer,
		options.Compress,
		signOptions,
		&dockerRegistryOptions,
		nil)
}

// func (r *imageRuntime) Delete(ctx context.Context, nameOrId string, opts entities.ImageDeleteOptions) (*entities.ImageDeleteReport, error) {
// 	image, err := r.libpod.ImageEngine().NewFromLocal(nameOrId)
// 	if err != nil {
// 		return nil, err
// 	}
//
// 	results, err := r.libpod.RemoveImage(ctx, image, opts.Force)
// 	if err != nil {
// 		return nil, err
// 	}
//
// 	report := entities.ImageDeleteReport{}
// 	if err := domainUtils.DeepCopy(&report, results); err != nil {
// 		return nil, err
// 	}
// 	return &report, nil
// }
//
// func (r *imageRuntime) Prune(ctx context.Context, opts entities.ImagePruneOptions) (*entities.ImagePruneReport, error) {
// 	// TODO: map FilterOptions
// 	id, err := r.libpod.ImageEngine().PruneImages(ctx, opts.All, []string{})
// 	if err != nil {
// 		return nil, err
// 	}
//
// 	// TODO: Determine Size
// 	report := entities.ImagePruneReport{}
// 	copy(report.Report.Id, id)
// 	return &report, nil
// }

func (ir *ImageEngine) Tag(ctx context.Context, nameOrId string, tags []string, options entities.ImageTagOptions) error {
	newImage, err := ir.Libpod.ImageRuntime().NewFromLocal(nameOrId)
	if err != nil {
		return err
	}
	for _, tag := range tags {
		if err := newImage.TagImage(tag); err != nil {
			return err
		}
	}
	return nil
}

func (ir *ImageEngine) Untag(ctx context.Context, nameOrId string, tags []string, options entities.ImageUntagOptions) error {
	newImage, err := ir.Libpod.ImageRuntime().NewFromLocal(nameOrId)
	if err != nil {
		return err
	}
	// If only one arg is provided, all names are to be untagged
	if len(tags) == 0 {
		tags = newImage.Names()
	}
	for _, tag := range tags {
		if err := newImage.UntagImage(tag); err != nil {
			return err
		}
	}
	return nil
}

func (ir *ImageEngine) Load(ctx context.Context, opts entities.ImageLoadOptions) (*entities.ImageLoadReport, error) {
	var (
		writer io.Writer
	)
	if !opts.Quiet {
		writer = os.Stderr
	}
	name, err := ir.Libpod.LoadImage(ctx, opts.Name, opts.Input, writer, opts.SignaturePolicy)
	if err != nil {
		return nil, err
	}
	names := strings.Split(name, ",")
	if len(names) <= 1 {
		newImage, err := ir.Libpod.ImageRuntime().NewFromLocal(name)
		if err != nil {
			return nil, errors.Wrap(err, "image loaded but no additional tags were created")
		}
		if len(opts.Name) > 0 {
			if err := newImage.TagImage(fmt.Sprintf("%s:%s", opts.Name, opts.Tag)); err != nil {
				return nil, errors.Wrapf(err, "error adding %q to image %q", opts.Name, newImage.InputName)
			}
		}
	}
	return &entities.ImageLoadReport{Names: names}, nil
}

func (ir *ImageEngine) Import(ctx context.Context, opts entities.ImageImportOptions) (*entities.ImageImportReport, error) {
	id, err := ir.Libpod.Import(ctx, opts.Source, opts.Reference, opts.Changes, opts.Message, opts.Quiet)
	if err != nil {
		return nil, err
	}
	return &entities.ImageImportReport{Id: id}, nil
}

func (ir *ImageEngine) Save(ctx context.Context, nameOrId string, tags []string, options entities.ImageSaveOptions) error {
	newImage, err := ir.Libpod.ImageRuntime().NewFromLocal(nameOrId)
	if err != nil {
		return err
	}
	return newImage.Save(ctx, nameOrId, options.Format, options.Output, tags, options.Quiet, options.Compress)
}

func (ir *ImageEngine) Diff(_ context.Context, nameOrId string, _ entities.DiffOptions) (*entities.DiffReport, error) {
	changes, err := ir.Libpod.GetDiff("", nameOrId)
	if err != nil {
		return nil, err
	}
	return &entities.DiffReport{Changes: changes}, nil
}

func (ir *ImageEngine) Search(ctx context.Context, term string, opts entities.ImageSearchOptions) ([]entities.ImageSearchReport, error) {
	filter, err := image.ParseSearchFilter(opts.Filters)
	if err != nil {
		return nil, err
	}

	searchOpts := image.SearchOptions{
		Authfile:              opts.Authfile,
		Filter:                *filter,
		Limit:                 opts.Limit,
		NoTrunc:               opts.NoTrunc,
		InsecureSkipTLSVerify: opts.SkipTLSVerify,
	}

	searchResults, err := image.SearchImages(term, searchOpts)
	if err != nil {
		return nil, err
	}

	// Convert from image.SearchResults to entities.ImageSearchReport. We don't
	// want to leak any low-level packages into the remote client, which
	// requires converting.
	reports := make([]entities.ImageSearchReport, len(searchResults))
	for i := range searchResults {
		reports[i].Index = searchResults[i].Index
		reports[i].Name = searchResults[i].Name
		reports[i].Description = searchResults[i].Index
		reports[i].Stars = searchResults[i].Stars
		reports[i].Official = searchResults[i].Official
		reports[i].Automated = searchResults[i].Automated
	}

	return reports, nil
}

// GetConfig returns a copy of the configuration used by the runtime
func (ir *ImageEngine) Config(_ context.Context) (*config.Config, error) {
	return ir.Libpod.GetConfig()
}

func (ir *ImageEngine) Build(ctx context.Context, containerFiles []string, opts entities.BuildOptions) (*entities.BuildReport, error) {
	id, _, err := ir.Libpod.Build(ctx, opts.BuildOptions, containerFiles...)
	if err != nil {
		return nil, err
	}
	return &entities.BuildReport{ID: id}, nil
}

func (ir *ImageEngine) Tree(ctx context.Context, nameOrId string, opts entities.ImageTreeOptions) (*entities.ImageTreeReport, error) {
	img, err := ir.Libpod.ImageRuntime().NewFromLocal(nameOrId)
	if err != nil {
		return nil, err
	}
	results, err := img.GenerateTree(opts.WhatRequires)
	if err != nil {
		return nil, err
	}
	return &entities.ImageTreeReport{Tree: results}, nil
}

// Remove removes one or more images from local storage.
func (ir *ImageEngine) Remove(ctx context.Context, images []string, opts entities.ImageRemoveOptions) (report *entities.ImageRemoveReport, finalError error) {
	var (
		// noSuchImageErrors indicates that at least one image was not found.
		noSuchImageErrors bool
		// inUseErrors indicates that at least one image is being used by a
		// container.
		inUseErrors bool
		// otherErrors indicates that at least one error other than the two
		// above occured.
		otherErrors bool
		// deleteError is a multierror to conveniently collect errors during
		// removal. We really want to delete as many images as possible and not
		// error out immediately.
		deleteError *multierror.Error
	)

	report = &entities.ImageRemoveReport{}

	// Set the removalCode and the error after all work is done.
	defer func() {
		switch {
		// 2
		case inUseErrors:
			// One of the specified images has child images or is
			// being used by a container.
			report.ExitCode = 2
		// 1
		case noSuchImageErrors && !(otherErrors || inUseErrors):
			// One of the specified images did not exist, and no other
			// failures.
			report.ExitCode = 1
		// 0
		default:
			// Nothing to do.
		}
		if deleteError != nil {
			// go-multierror has a trailing new line which we need to remove to normalize the string.
			finalError = deleteError.ErrorOrNil()
			finalError = errors.New(strings.TrimSpace(finalError.Error()))
		}
	}()

	// deleteImage is an anonymous function to conveniently delete an image
	// without having to pass all local data around.
	deleteImage := func(img *image.Image) error {
		results, err := ir.Libpod.RemoveImage(ctx, img, opts.Force)
		switch errors.Cause(err) {
		case nil:
			break
		case define.ErrNoSuchImage:
			inUseErrors = true // ExitCode is expected
		case storage.ErrImageUsedByContainer:
			inUseErrors = true // Important for exit codes in Podman.
			return errors.New(
				fmt.Sprintf("A container associated with containers/storage, i.e. via Buildah, CRI-O, etc., may be associated with this image: %-12.12s\n", img.ID()))
		case define.ErrImageInUse:
			inUseErrors = true
			return err
		default:
			otherErrors = true // Important for exit codes in Podman.
			return err
		}

		report.Deleted = append(report.Deleted, results.Deleted)
		report.Untagged = append(report.Untagged, results.Untagged...)
		return nil
	}

	// Delete all images from the local storage.
	if opts.All {
		previousImages := 0
		// Remove all images one-by-one.
		for {
			storageImages, err := ir.Libpod.ImageRuntime().GetRWImages()
			if err != nil {
				deleteError = multierror.Append(deleteError,
					errors.Wrapf(err, "unable to query local images"))
				otherErrors = true // Important for exit codes in Podman.
				return
			}
			// No images (left) to remove, so we're done.
			if len(storageImages) == 0 {
				return
			}
			// Prevent infinity loops by making a delete-progress check.
			if previousImages == len(storageImages) {
				otherErrors = true // Important for exit codes in Podman.
				deleteError = multierror.Append(deleteError,
					errors.New("unable to delete all images, check errors and re-run image removal if needed"))
				break
			}
			previousImages = len(storageImages)
			// Delete all "leaves" (i.e., images without child images).
			for _, img := range storageImages {
				isParent, err := img.IsParent(ctx)
				if err != nil {
					otherErrors = true // Important for exit codes in Podman.
					deleteError = multierror.Append(deleteError, err)
				}
				// Skip parent images.
				if isParent {
					continue
				}
				if err := deleteImage(img); err != nil {
					deleteError = multierror.Append(deleteError, err)
				}
			}
		}

		return
	}

	// Delete only the specified images.
	for _, id := range images {
		img, err := ir.Libpod.ImageRuntime().NewFromLocal(id)
		switch errors.Cause(err) {
		case nil:
			break
		case image.ErrNoSuchImage:
			noSuchImageErrors = true // Important for exit codes in Podman.
			fallthrough
		default:
			deleteError = multierror.Append(deleteError, errors.Wrapf(err, "failed to remove image '%s'", id))
			continue
		}

		err = deleteImage(img)
		if err != nil {
			otherErrors = true // Important for exit codes in Podman.
			deleteError = multierror.Append(deleteError, err)
		}
	}

	return
}

// Shutdown Libpod engine
func (ir *ImageEngine) Shutdown(_ context.Context) {
	shutdownSync.Do(func() {
		_ = ir.Libpod.Shutdown(false)
	})
}