A container registry that uses the AT Protocol for manifest storage and S3 for blob storage.
begin scanner implementation
+1281
+270
pkg/hold/scanner/extractor.go
+270
pkg/hold/scanner/extractor.go
···
1
+
package scanner
2
+
3
+
import (
4
+
"archive/tar"
5
+
"compress/gzip"
6
+
"context"
7
+
"encoding/json"
8
+
"fmt"
9
+
"io"
10
+
"log/slog"
11
+
"os"
12
+
"path/filepath"
13
+
"strings"
14
+
)
15
+
16
+
// extractLayers extracts all image layers from storage to a temporary directory
17
+
// Returns the directory path and a cleanup function
18
+
func (w *Worker) extractLayers(ctx context.Context, job *ScanJob) (string, func(), error) {
19
+
// Create temp directory for extraction
20
+
// Use the database directory as the base (since we're in a scratch container with no /tmp)
21
+
scanTmpBase := filepath.Join(w.config.Database.Path, "scanner-tmp")
22
+
if err := os.MkdirAll(scanTmpBase, 0755); err != nil {
23
+
return "", nil, fmt.Errorf("failed to create scanner temp base: %w", err)
24
+
}
25
+
26
+
tmpDir, err := os.MkdirTemp(scanTmpBase, "scan-*")
27
+
if err != nil {
28
+
return "", nil, fmt.Errorf("failed to create temp directory: %w", err)
29
+
}
30
+
31
+
cleanup := func() {
32
+
if err := os.RemoveAll(tmpDir); err != nil {
33
+
slog.Warn("Failed to clean up temp directory", "dir", tmpDir, "error", err)
34
+
}
35
+
}
36
+
37
+
// Create image directory structure
38
+
imageDir := filepath.Join(tmpDir, "image")
39
+
if err := os.MkdirAll(imageDir, 0755); err != nil {
40
+
cleanup()
41
+
return "", nil, fmt.Errorf("failed to create image directory: %w", err)
42
+
}
43
+
44
+
// Download and extract config blob
45
+
slog.Info("Downloading config blob", "digest", job.Config.Digest)
46
+
configPath := filepath.Join(imageDir, "config.json")
47
+
if err := w.downloadBlob(ctx, job.Config.Digest, configPath); err != nil {
48
+
cleanup()
49
+
return "", nil, fmt.Errorf("failed to download config blob: %w", err)
50
+
}
51
+
52
+
// Validate config is valid JSON
53
+
configData, err := os.ReadFile(configPath)
54
+
if err != nil {
55
+
cleanup()
56
+
return "", nil, fmt.Errorf("failed to read config: %w", err)
57
+
}
58
+
var configObj map[string]interface{}
59
+
if err := json.Unmarshal(configData, &configObj); err != nil {
60
+
cleanup()
61
+
return "", nil, fmt.Errorf("invalid config JSON: %w", err)
62
+
}
63
+
64
+
// Create layers directory for extracted content
65
+
layersDir := filepath.Join(imageDir, "layers")
66
+
if err := os.MkdirAll(layersDir, 0755); err != nil {
67
+
cleanup()
68
+
return "", nil, fmt.Errorf("failed to create layers directory: %w", err)
69
+
}
70
+
71
+
// Download and extract each layer in order (creating overlayfs-style filesystem)
72
+
rootfsDir := filepath.Join(imageDir, "rootfs")
73
+
if err := os.MkdirAll(rootfsDir, 0755); err != nil {
74
+
cleanup()
75
+
return "", nil, fmt.Errorf("failed to create rootfs directory: %w", err)
76
+
}
77
+
78
+
for i, layer := range job.Layers {
79
+
slog.Info("Extracting layer", "index", i, "digest", layer.Digest, "size", layer.Size)
80
+
81
+
// Download layer blob to temp file
82
+
layerPath := filepath.Join(layersDir, fmt.Sprintf("layer-%d.tar.gz", i))
83
+
if err := w.downloadBlob(ctx, layer.Digest, layerPath); err != nil {
84
+
cleanup()
85
+
return "", nil, fmt.Errorf("failed to download layer %d: %w", i, err)
86
+
}
87
+
88
+
// Extract layer on top of rootfs (overlayfs style)
89
+
if err := w.extractTarGz(layerPath, rootfsDir); err != nil {
90
+
cleanup()
91
+
return "", nil, fmt.Errorf("failed to extract layer %d: %w", i, err)
92
+
}
93
+
94
+
// Remove layer tar.gz to save space
95
+
os.Remove(layerPath)
96
+
}
97
+
98
+
// Check what was extracted
99
+
entries, err := os.ReadDir(rootfsDir)
100
+
if err != nil {
101
+
slog.Warn("Failed to read rootfs directory", "error", err)
102
+
} else {
103
+
slog.Info("Successfully extracted image",
104
+
"layers", len(job.Layers),
105
+
"rootfs", rootfsDir,
106
+
"topLevelEntries", len(entries),
107
+
"sampleEntries", func() []string {
108
+
var samples []string
109
+
for i, e := range entries {
110
+
if i >= 10 {
111
+
break
112
+
}
113
+
samples = append(samples, e.Name())
114
+
}
115
+
return samples
116
+
}())
117
+
}
118
+
119
+
return rootfsDir, cleanup, nil
120
+
}
121
+
122
+
// downloadBlob downloads a blob from storage to a local file
123
+
func (w *Worker) downloadBlob(ctx context.Context, digest, destPath string) error {
124
+
// Convert digest to storage path using distribution's sharding scheme
125
+
// Format: /docker/registry/v2/blobs/sha256/47/4734bc89.../data
126
+
// where 47 is the first 2 characters of the hash for directory sharding
127
+
blobPath := blobPathForDigest(digest)
128
+
129
+
// Open blob from storage driver
130
+
reader, err := w.driver.Reader(ctx, blobPath, 0)
131
+
if err != nil {
132
+
return fmt.Errorf("failed to open blob %s: %w", digest, err)
133
+
}
134
+
defer reader.Close()
135
+
136
+
// Create destination file
137
+
dest, err := os.Create(destPath)
138
+
if err != nil {
139
+
return fmt.Errorf("failed to create destination file: %w", err)
140
+
}
141
+
defer dest.Close()
142
+
143
+
// Copy blob data to file
144
+
if _, err := io.Copy(dest, reader); err != nil {
145
+
return fmt.Errorf("failed to copy blob data: %w", err)
146
+
}
147
+
148
+
return nil
149
+
}
150
+
151
+
// extractTarGz extracts a tar.gz file to a destination directory (overlayfs style)
152
+
func (w *Worker) extractTarGz(tarGzPath, destDir string) error {
153
+
// Open tar.gz file
154
+
file, err := os.Open(tarGzPath)
155
+
if err != nil {
156
+
return fmt.Errorf("failed to open tar.gz: %w", err)
157
+
}
158
+
defer file.Close()
159
+
160
+
// Create gzip reader
161
+
gzr, err := gzip.NewReader(file)
162
+
if err != nil {
163
+
return fmt.Errorf("failed to create gzip reader: %w", err)
164
+
}
165
+
defer gzr.Close()
166
+
167
+
// Create tar reader
168
+
tr := tar.NewReader(gzr)
169
+
170
+
// Extract each file
171
+
for {
172
+
header, err := tr.Next()
173
+
if err == io.EOF {
174
+
break
175
+
}
176
+
if err != nil {
177
+
return fmt.Errorf("failed to read tar header: %w", err)
178
+
}
179
+
180
+
// Build target path (clean to prevent path traversal)
181
+
target := filepath.Join(destDir, filepath.Clean(header.Name))
182
+
183
+
// Ensure target is within destDir (security check)
184
+
if !strings.HasPrefix(target, filepath.Clean(destDir)+string(os.PathSeparator)) {
185
+
slog.Warn("Skipping path outside destination", "path", header.Name)
186
+
continue
187
+
}
188
+
189
+
switch header.Typeflag {
190
+
case tar.TypeDir:
191
+
// Create directory
192
+
if err := os.MkdirAll(target, os.FileMode(header.Mode)); err != nil {
193
+
return fmt.Errorf("failed to create directory %s: %w", target, err)
194
+
}
195
+
196
+
case tar.TypeReg:
197
+
// Create parent directory
198
+
if err := os.MkdirAll(filepath.Dir(target), 0755); err != nil {
199
+
return fmt.Errorf("failed to create parent directory: %w", err)
200
+
}
201
+
202
+
// Create file
203
+
outFile, err := os.OpenFile(target, os.O_CREATE|os.O_RDWR|os.O_TRUNC, os.FileMode(header.Mode))
204
+
if err != nil {
205
+
return fmt.Errorf("failed to create file %s: %w", target, err)
206
+
}
207
+
208
+
// Copy file contents
209
+
if _, err := io.Copy(outFile, tr); err != nil {
210
+
outFile.Close()
211
+
return fmt.Errorf("failed to write file %s: %w", target, err)
212
+
}
213
+
outFile.Close()
214
+
215
+
case tar.TypeSymlink:
216
+
// Create symlink
217
+
if err := os.MkdirAll(filepath.Dir(target), 0755); err != nil {
218
+
return fmt.Errorf("failed to create parent directory for symlink: %w", err)
219
+
}
220
+
221
+
// Remove existing file/symlink if it exists
222
+
os.Remove(target)
223
+
224
+
if err := os.Symlink(header.Linkname, target); err != nil {
225
+
slog.Warn("Failed to create symlink", "target", target, "link", header.Linkname, "error", err)
226
+
}
227
+
228
+
case tar.TypeLink:
229
+
// Create hard link
230
+
linkTarget := filepath.Join(destDir, filepath.Clean(header.Linkname))
231
+
if err := os.MkdirAll(filepath.Dir(target), 0755); err != nil {
232
+
return fmt.Errorf("failed to create parent directory for hardlink: %w", err)
233
+
}
234
+
235
+
// Remove existing file if it exists
236
+
os.Remove(target)
237
+
238
+
if err := os.Link(linkTarget, target); err != nil {
239
+
slog.Warn("Failed to create hardlink", "target", target, "link", linkTarget, "error", err)
240
+
}
241
+
242
+
default:
243
+
slog.Debug("Skipping unsupported tar entry type", "type", header.Typeflag, "name", header.Name)
244
+
}
245
+
}
246
+
247
+
return nil
248
+
}
249
+
250
+
// blobPathForDigest converts a digest to a storage path using distribution's sharding scheme
251
+
// Format: /docker/registry/v2/blobs/sha256/47/4734bc89.../data
252
+
// where 47 is the first 2 characters of the hash for directory sharding
253
+
func blobPathForDigest(digest string) string {
254
+
// Split digest into algorithm and hash
255
+
parts := strings.SplitN(digest, ":", 2)
256
+
if len(parts) != 2 {
257
+
// Fallback for malformed digest
258
+
return fmt.Sprintf("/docker/registry/v2/blobs/%s/data", digest)
259
+
}
260
+
261
+
algorithm := parts[0]
262
+
hash := parts[1]
263
+
264
+
// Use first 2 characters for sharding
265
+
if len(hash) < 2 {
266
+
return fmt.Sprintf("/docker/registry/v2/blobs/%s/%s/data", algorithm, hash)
267
+
}
268
+
269
+
return fmt.Sprintf("/docker/registry/v2/blobs/%s/%s/%s/data", algorithm, hash[:2], hash)
270
+
}
+351
pkg/hold/scanner/grype.go
+351
pkg/hold/scanner/grype.go
···
1
+
package scanner
2
+
3
+
import (
4
+
"context"
5
+
"crypto/sha256"
6
+
"encoding/json"
7
+
"fmt"
8
+
"log/slog"
9
+
"os"
10
+
"path/filepath"
11
+
"sync"
12
+
13
+
"github.com/anchore/grype/grype"
14
+
"github.com/anchore/grype/grype/db/v6/distribution"
15
+
"github.com/anchore/grype/grype/db/v6/installation"
16
+
"github.com/anchore/grype/grype/distro"
17
+
"github.com/anchore/grype/grype/match"
18
+
"github.com/anchore/grype/grype/matcher"
19
+
"github.com/anchore/grype/grype/matcher/dotnet"
20
+
"github.com/anchore/grype/grype/matcher/golang"
21
+
"github.com/anchore/grype/grype/matcher/java"
22
+
"github.com/anchore/grype/grype/matcher/javascript"
23
+
"github.com/anchore/grype/grype/matcher/python"
24
+
"github.com/anchore/grype/grype/matcher/ruby"
25
+
"github.com/anchore/grype/grype/matcher/stock"
26
+
grypePkg "github.com/anchore/grype/grype/pkg"
27
+
"github.com/anchore/grype/grype/vulnerability"
28
+
"github.com/anchore/syft/syft/sbom"
29
+
)
30
+
31
+
// Global vulnerability database (shared across workers)
32
+
var (
33
+
vulnDB vulnerability.Provider
34
+
vulnDBLock sync.RWMutex
35
+
)
36
+
37
+
// scanVulnerabilities scans an SBOM for vulnerabilities using Grype
38
+
// Returns vulnerability report JSON, digest, summary, and any error
39
+
func (w *Worker) scanVulnerabilities(ctx context.Context, s *sbom.SBOM) ([]byte, string, VulnerabilitySummary, error) {
40
+
slog.Info("Scanning for vulnerabilities with Grype")
41
+
42
+
// Load vulnerability database (cached globally)
43
+
store, err := w.loadVulnDatabase(ctx)
44
+
if err != nil {
45
+
return nil, "", VulnerabilitySummary{}, fmt.Errorf("failed to load vulnerability database: %w", err)
46
+
}
47
+
48
+
// Create package context from SBOM (need distro for synthesis)
49
+
var grypeDistro *distro.Distro
50
+
if s.Artifacts.LinuxDistribution != nil {
51
+
grypeDistro = distro.FromRelease(s.Artifacts.LinuxDistribution, nil)
52
+
if grypeDistro != nil {
53
+
slog.Info("Using distro for package synthesis",
54
+
"name", grypeDistro.Name(),
55
+
"version", grypeDistro.Version,
56
+
"type", grypeDistro.Type,
57
+
"codename", grypeDistro.Codename)
58
+
}
59
+
}
60
+
61
+
// Convert Syft packages to Grype packages WITH distro info
62
+
synthesisConfig := grypePkg.SynthesisConfig{
63
+
GenerateMissingCPEs: true,
64
+
Distro: grypePkg.DistroConfig{
65
+
Override: grypeDistro,
66
+
},
67
+
}
68
+
grypePackages := grypePkg.FromCollection(s.Artifacts.Packages, synthesisConfig)
69
+
70
+
slog.Info("Converted packages for vulnerability scanning",
71
+
"syftPackages", s.Artifacts.Packages.PackageCount(),
72
+
"grypePackages", len(grypePackages),
73
+
"distro", func() string {
74
+
if s.Artifacts.LinuxDistribution != nil {
75
+
return fmt.Sprintf("%s %s", s.Artifacts.LinuxDistribution.Name, s.Artifacts.LinuxDistribution.Version)
76
+
}
77
+
return "none"
78
+
}())
79
+
80
+
// Create matchers
81
+
matchers := matcher.NewDefaultMatchers(matcher.Config{
82
+
Java: java.MatcherConfig{},
83
+
Ruby: ruby.MatcherConfig{},
84
+
Python: python.MatcherConfig{},
85
+
Dotnet: dotnet.MatcherConfig{},
86
+
Javascript: javascript.MatcherConfig{},
87
+
Golang: golang.MatcherConfig{},
88
+
Stock: stock.MatcherConfig{},
89
+
})
90
+
91
+
// Create package context with the same distro we used for synthesis
92
+
pkgContext := grypePkg.Context{
93
+
Source: &s.Source,
94
+
Distro: grypeDistro,
95
+
}
96
+
97
+
// Create vulnerability matcher
98
+
vulnerabilityMatcher := &grype.VulnerabilityMatcher{
99
+
VulnerabilityProvider: store,
100
+
Matchers: matchers,
101
+
NormalizeByCVE: true,
102
+
}
103
+
104
+
// Find vulnerabilities
105
+
slog.Info("Matching vulnerabilities",
106
+
"packages", len(grypePackages),
107
+
"distro", func() string {
108
+
if grypeDistro != nil {
109
+
return fmt.Sprintf("%s %s", grypeDistro.Name(), grypeDistro.Version)
110
+
}
111
+
return "none"
112
+
}())
113
+
allMatches, _, err := vulnerabilityMatcher.FindMatches(grypePackages, pkgContext)
114
+
if err != nil {
115
+
return nil, "", VulnerabilitySummary{}, fmt.Errorf("failed to find vulnerabilities: %w", err)
116
+
}
117
+
118
+
slog.Info("Vulnerability matching complete",
119
+
"totalMatches", allMatches.Count())
120
+
121
+
// If we found 0 matches, log some diagnostic info
122
+
if allMatches.Count() == 0 {
123
+
slog.Warn("No vulnerability matches found - this may indicate an issue",
124
+
"distro", func() string {
125
+
if grypeDistro != nil {
126
+
return fmt.Sprintf("%s %s", grypeDistro.Name(), grypeDistro.Version)
127
+
}
128
+
return "none"
129
+
}(),
130
+
"packages", len(grypePackages),
131
+
"databaseBuilt", func() string {
132
+
vulnDBLock.RLock()
133
+
defer vulnDBLock.RUnlock()
134
+
if vulnDB == nil {
135
+
return "not loaded"
136
+
}
137
+
// We can't easily get the build date here without exposing internal state
138
+
return "loaded"
139
+
}())
140
+
}
141
+
142
+
// Count vulnerabilities by severity
143
+
summary := w.countVulnerabilitiesBySeverity(*allMatches)
144
+
145
+
slog.Info("Vulnerability scan complete",
146
+
"critical", summary.Critical,
147
+
"high", summary.High,
148
+
"medium", summary.Medium,
149
+
"low", summary.Low,
150
+
"total", summary.Total)
151
+
152
+
// Create vulnerability report JSON
153
+
report := map[string]interface{}{
154
+
"matches": allMatches.Sorted(),
155
+
"source": s.Source,
156
+
"distro": s.Artifacts.LinuxDistribution,
157
+
"descriptor": map[string]interface{}{
158
+
"name": "grype",
159
+
"version": "v0.102.0", // TODO: Get actual Grype version
160
+
},
161
+
"summary": summary,
162
+
}
163
+
164
+
// Encode report to JSON
165
+
reportJSON, err := json.MarshalIndent(report, "", " ")
166
+
if err != nil {
167
+
return nil, "", VulnerabilitySummary{}, fmt.Errorf("failed to encode vulnerability report: %w", err)
168
+
}
169
+
170
+
// Calculate digest
171
+
hash := sha256.Sum256(reportJSON)
172
+
digest := fmt.Sprintf("sha256:%x", hash)
173
+
174
+
slog.Info("Vulnerability report generated", "size", len(reportJSON), "digest", digest)
175
+
176
+
// Upload report blob to storage
177
+
if err := w.uploadBlob(ctx, digest, reportJSON); err != nil {
178
+
return nil, "", VulnerabilitySummary{}, fmt.Errorf("failed to upload vulnerability report: %w", err)
179
+
}
180
+
181
+
return reportJSON, digest, summary, nil
182
+
}
183
+
184
+
// loadVulnDatabase loads the Grype vulnerability database (with caching)
185
+
func (w *Worker) loadVulnDatabase(ctx context.Context) (vulnerability.Provider, error) {
186
+
// Check if database is already loaded
187
+
vulnDBLock.RLock()
188
+
if vulnDB != nil {
189
+
vulnDBLock.RUnlock()
190
+
return vulnDB, nil
191
+
}
192
+
vulnDBLock.RUnlock()
193
+
194
+
// Acquire write lock to load database
195
+
vulnDBLock.Lock()
196
+
defer vulnDBLock.Unlock()
197
+
198
+
// Check again (another goroutine might have loaded it)
199
+
if vulnDB != nil {
200
+
return vulnDB, nil
201
+
}
202
+
203
+
slog.Info("Loading Grype vulnerability database", "path", w.config.Scanner.VulnDBPath)
204
+
205
+
// Ensure database directory exists
206
+
if err := ensureDir(w.config.Scanner.VulnDBPath); err != nil {
207
+
return nil, fmt.Errorf("failed to create vulnerability database directory: %w", err)
208
+
}
209
+
210
+
// Configure database distribution
211
+
distConfig := distribution.DefaultConfig()
212
+
213
+
// Configure database installation
214
+
installConfig := installation.Config{
215
+
DBRootDir: w.config.Scanner.VulnDBPath,
216
+
ValidateAge: true,
217
+
ValidateChecksum: true,
218
+
MaxAllowedBuiltAge: w.config.Scanner.VulnDBUpdateInterval,
219
+
}
220
+
221
+
// Load database (should already be downloaded by initializeVulnDatabase)
222
+
store, status, err := grype.LoadVulnerabilityDB(distConfig, installConfig, false)
223
+
if err != nil {
224
+
return nil, fmt.Errorf("failed to load vulnerability database (status=%v): %w (hint: database may still be downloading)", status, err)
225
+
}
226
+
227
+
slog.Info("Vulnerability database loaded",
228
+
"status", status,
229
+
"built", status.Built,
230
+
"location", status.Path,
231
+
"schemaVersion", status.SchemaVersion)
232
+
233
+
// Check database file size to verify it has content
234
+
if stat, err := os.Stat(status.Path); err == nil {
235
+
slog.Info("Vulnerability database file stats",
236
+
"size", stat.Size(),
237
+
"sizeMB", stat.Size()/1024/1024)
238
+
}
239
+
240
+
// Cache database globally
241
+
vulnDB = store
242
+
243
+
slog.Info("Vulnerability database loaded successfully")
244
+
return vulnDB, nil
245
+
}
246
+
247
+
// countVulnerabilitiesBySeverity counts vulnerabilities by severity level
248
+
func (w *Worker) countVulnerabilitiesBySeverity(matches match.Matches) VulnerabilitySummary {
249
+
summary := VulnerabilitySummary{}
250
+
251
+
for m := range matches.Enumerate() {
252
+
summary.Total++
253
+
254
+
// Get severity from vulnerability metadata
255
+
if m.Vulnerability.Metadata != nil {
256
+
severity := m.Vulnerability.Metadata.Severity
257
+
switch severity {
258
+
case "Critical":
259
+
summary.Critical++
260
+
case "High":
261
+
summary.High++
262
+
case "Medium":
263
+
summary.Medium++
264
+
case "Low":
265
+
summary.Low++
266
+
}
267
+
}
268
+
}
269
+
270
+
return summary
271
+
}
272
+
273
+
// initializeVulnDatabase downloads and initializes the vulnerability database on startup
274
+
func (w *Worker) initializeVulnDatabase(ctx context.Context) error {
275
+
slog.Info("Initializing vulnerability database", "path", w.config.Scanner.VulnDBPath)
276
+
277
+
// Ensure database directory exists
278
+
if err := ensureDir(w.config.Scanner.VulnDBPath); err != nil {
279
+
return fmt.Errorf("failed to create vulnerability database directory: %w", err)
280
+
}
281
+
282
+
// Create temp directory for Grype downloads (scratch container has no /tmp)
283
+
tmpDir := filepath.Join(w.config.Database.Path, "tmp")
284
+
if err := ensureDir(tmpDir); err != nil {
285
+
return fmt.Errorf("failed to create temp directory: %w", err)
286
+
}
287
+
288
+
// Set TMPDIR environment variable so Grype uses our temp directory
289
+
oldTmpDir := os.Getenv("TMPDIR")
290
+
os.Setenv("TMPDIR", tmpDir)
291
+
defer func() {
292
+
if oldTmpDir != "" {
293
+
os.Setenv("TMPDIR", oldTmpDir)
294
+
} else {
295
+
os.Unsetenv("TMPDIR")
296
+
}
297
+
}()
298
+
299
+
// Configure database distribution
300
+
distConfig := distribution.DefaultConfig()
301
+
302
+
// Configure database installation
303
+
installConfig := installation.Config{
304
+
DBRootDir: w.config.Scanner.VulnDBPath,
305
+
ValidateAge: true,
306
+
ValidateChecksum: true,
307
+
MaxAllowedBuiltAge: w.config.Scanner.VulnDBUpdateInterval,
308
+
}
309
+
310
+
// Create distribution client for downloading
311
+
downloader, err := distribution.NewClient(distConfig)
312
+
if err != nil {
313
+
return fmt.Errorf("failed to create database downloader: %w", err)
314
+
}
315
+
316
+
// Create curator to manage database
317
+
curator, err := installation.NewCurator(installConfig, downloader)
318
+
if err != nil {
319
+
return fmt.Errorf("failed to create database curator: %w", err)
320
+
}
321
+
322
+
// Check if database already exists
323
+
status := curator.Status()
324
+
if !status.Built.IsZero() && status.Error == nil {
325
+
slog.Info("Vulnerability database already exists", "built", status.Built, "schema", status.SchemaVersion)
326
+
return nil
327
+
}
328
+
329
+
// Download database (this may take several minutes)
330
+
slog.Info("Downloading vulnerability database (this may take 5-10 minutes)...")
331
+
updated, err := curator.Update()
332
+
if err != nil {
333
+
return fmt.Errorf("failed to download vulnerability database: %w", err)
334
+
}
335
+
336
+
if updated {
337
+
slog.Info("Vulnerability database downloaded successfully")
338
+
} else {
339
+
slog.Info("Vulnerability database is up to date")
340
+
}
341
+
342
+
return nil
343
+
}
344
+
345
+
// ensureDir creates a directory if it doesn't exist
346
+
func ensureDir(path string) error {
347
+
if err := os.MkdirAll(path, 0755); err != nil {
348
+
return fmt.Errorf("failed to create directory %s: %w", path, err)
349
+
}
350
+
return nil
351
+
}
+67
pkg/hold/scanner/job.go
+67
pkg/hold/scanner/job.go
···
1
+
package scanner
2
+
3
+
import (
4
+
"time"
5
+
6
+
"atcr.io/pkg/atproto"
7
+
)
8
+
9
+
// ScanJob represents a vulnerability scanning job for a container image
10
+
type ScanJob struct {
11
+
// ManifestDigest is the digest of the manifest to scan
12
+
ManifestDigest string
13
+
14
+
// Repository is the repository name (e.g., "alice/myapp")
15
+
Repository string
16
+
17
+
// Tag is the tag name (e.g., "latest")
18
+
Tag string
19
+
20
+
// UserDID is the DID of the user who owns this image
21
+
UserDID string
22
+
23
+
// UserHandle is the handle of the user (for display)
24
+
UserHandle string
25
+
26
+
// Config is the image config blob descriptor
27
+
Config atproto.BlobReference
28
+
29
+
// Layers are the image layer blob descriptors (in order)
30
+
Layers []atproto.BlobReference
31
+
32
+
// EnqueuedAt is when this job was enqueued
33
+
EnqueuedAt time.Time
34
+
}
35
+
36
+
// ScanResult represents the result of a vulnerability scan
37
+
type ScanResult struct {
38
+
// Job is the original scan job
39
+
Job *ScanJob
40
+
41
+
// VulnerabilitiesJSON is the raw Grype JSON output
42
+
VulnerabilitiesJSON []byte
43
+
44
+
// Summary contains vulnerability counts by severity
45
+
Summary VulnerabilitySummary
46
+
47
+
// SBOMDigest is the digest of the SBOM blob (if SBOM was generated)
48
+
SBOMDigest string
49
+
50
+
// VulnDigest is the digest of the vulnerability report blob
51
+
VulnDigest string
52
+
53
+
// ScannedAt is when the scan completed
54
+
ScannedAt time.Time
55
+
56
+
// ScannerVersion is the version of the scanner used
57
+
ScannerVersion string
58
+
}
59
+
60
+
// VulnerabilitySummary contains counts of vulnerabilities by severity
61
+
type VulnerabilitySummary struct {
62
+
Critical int `json:"critical"`
63
+
High int `json:"high"`
64
+
Medium int `json:"medium"`
65
+
Low int `json:"low"`
66
+
Total int `json:"total"`
67
+
}
+226
pkg/hold/scanner/queue.go
+226
pkg/hold/scanner/queue.go
···
1
+
package scanner
2
+
3
+
import (
4
+
"context"
5
+
"fmt"
6
+
"log/slog"
7
+
"sync"
8
+
9
+
"atcr.io/pkg/atproto"
10
+
)
11
+
12
+
// Queue manages a pool of workers for scanning container images
13
+
type Queue struct {
14
+
jobs chan *ScanJob
15
+
results chan *ScanResult
16
+
workers int
17
+
wg sync.WaitGroup
18
+
ctx context.Context
19
+
cancel context.CancelFunc
20
+
}
21
+
22
+
// NewQueue creates a new scanner queue with the specified number of workers
23
+
func NewQueue(workers int, bufferSize int) *Queue {
24
+
ctx, cancel := context.WithCancel(context.Background())
25
+
26
+
return &Queue{
27
+
jobs: make(chan *ScanJob, bufferSize),
28
+
results: make(chan *ScanResult, bufferSize),
29
+
workers: workers,
30
+
ctx: ctx,
31
+
cancel: cancel,
32
+
}
33
+
}
34
+
35
+
// Start starts the worker pool
36
+
// The workerFunc is called for each job to perform the actual scanning
37
+
func (q *Queue) Start(workerFunc func(context.Context, *ScanJob) (*ScanResult, error)) {
38
+
slog.Info("Starting scanner worker pool", "workers", q.workers)
39
+
40
+
for i := 0; i < q.workers; i++ {
41
+
q.wg.Add(1)
42
+
go q.worker(i, workerFunc)
43
+
}
44
+
45
+
// Start result handler goroutine
46
+
q.wg.Add(1)
47
+
go q.resultHandler()
48
+
}
49
+
50
+
// worker processes jobs from the queue
51
+
func (q *Queue) worker(id int, workerFunc func(context.Context, *ScanJob) (*ScanResult, error)) {
52
+
defer q.wg.Done()
53
+
54
+
slog.Info("Scanner worker started", "worker_id", id)
55
+
56
+
for {
57
+
select {
58
+
case <-q.ctx.Done():
59
+
slog.Info("Scanner worker shutting down", "worker_id", id)
60
+
return
61
+
62
+
case job, ok := <-q.jobs:
63
+
if !ok {
64
+
slog.Info("Scanner worker: jobs channel closed", "worker_id", id)
65
+
return
66
+
}
67
+
68
+
slog.Info("Scanner worker processing job",
69
+
"worker_id", id,
70
+
"repository", job.Repository,
71
+
"tag", job.Tag,
72
+
"digest", job.ManifestDigest)
73
+
74
+
result, err := workerFunc(q.ctx, job)
75
+
if err != nil {
76
+
slog.Error("Scanner worker failed to process job",
77
+
"worker_id", id,
78
+
"repository", job.Repository,
79
+
"tag", job.Tag,
80
+
"error", err)
81
+
continue
82
+
}
83
+
84
+
// Send result to results channel
85
+
select {
86
+
case q.results <- result:
87
+
slog.Info("Scanner worker completed job",
88
+
"worker_id", id,
89
+
"repository", job.Repository,
90
+
"tag", job.Tag,
91
+
"vulnerabilities", result.Summary.Total)
92
+
case <-q.ctx.Done():
93
+
return
94
+
}
95
+
}
96
+
}
97
+
}
98
+
99
+
// resultHandler processes scan results (for logging and metrics)
100
+
func (q *Queue) resultHandler() {
101
+
defer q.wg.Done()
102
+
103
+
for {
104
+
select {
105
+
case <-q.ctx.Done():
106
+
return
107
+
108
+
case result, ok := <-q.results:
109
+
if !ok {
110
+
return
111
+
}
112
+
113
+
// Log the result
114
+
slog.Info("Scan completed",
115
+
"repository", result.Job.Repository,
116
+
"tag", result.Job.Tag,
117
+
"digest", result.Job.ManifestDigest,
118
+
"critical", result.Summary.Critical,
119
+
"high", result.Summary.High,
120
+
"medium", result.Summary.Medium,
121
+
"low", result.Summary.Low,
122
+
"total", result.Summary.Total,
123
+
"scanner", result.ScannerVersion)
124
+
}
125
+
}
126
+
}
127
+
128
+
// Enqueue adds a job to the queue
129
+
func (q *Queue) Enqueue(jobAny any) error {
130
+
// Type assert to ScanJob (can be map or struct from HandleNotifyManifest)
131
+
var job *ScanJob
132
+
133
+
switch v := jobAny.(type) {
134
+
case *ScanJob:
135
+
job = v
136
+
case map[string]interface{}:
137
+
// Convert map to ScanJob (from HandleNotifyManifest)
138
+
job = &ScanJob{
139
+
ManifestDigest: v["manifestDigest"].(string),
140
+
Repository: v["repository"].(string),
141
+
Tag: v["tag"].(string),
142
+
UserDID: v["userDID"].(string),
143
+
UserHandle: v["userHandle"].(string),
144
+
}
145
+
146
+
// Parse config blob reference
147
+
if configMap, ok := v["config"].(map[string]interface{}); ok {
148
+
job.Config = atproto.BlobReference{
149
+
Digest: configMap["digest"].(string),
150
+
Size: convertToInt64(configMap["size"]),
151
+
MediaType: configMap["mediaType"].(string),
152
+
}
153
+
}
154
+
155
+
// Parse layers
156
+
if layersSlice, ok := v["layers"].([]interface{}); ok {
157
+
slog.Info("Parsing layers from scan job",
158
+
"layersFound", len(layersSlice))
159
+
job.Layers = make([]atproto.BlobReference, len(layersSlice))
160
+
for i, layerAny := range layersSlice {
161
+
if layerMap, ok := layerAny.(map[string]interface{}); ok {
162
+
job.Layers[i] = atproto.BlobReference{
163
+
Digest: layerMap["digest"].(string),
164
+
Size: convertToInt64(layerMap["size"]),
165
+
MediaType: layerMap["mediaType"].(string),
166
+
}
167
+
}
168
+
}
169
+
} else {
170
+
slog.Warn("No layers found in scan job map",
171
+
"layersType", fmt.Sprintf("%T", v["layers"]),
172
+
"layersValue", v["layers"])
173
+
}
174
+
default:
175
+
return fmt.Errorf("invalid job type: %T", jobAny)
176
+
}
177
+
178
+
select {
179
+
case q.jobs <- job:
180
+
slog.Info("Enqueued scan job",
181
+
"repository", job.Repository,
182
+
"tag", job.Tag,
183
+
"digest", job.ManifestDigest)
184
+
return nil
185
+
case <-q.ctx.Done():
186
+
return q.ctx.Err()
187
+
}
188
+
}
189
+
190
+
// Shutdown gracefully shuts down the queue, waiting for all workers to finish
191
+
func (q *Queue) Shutdown() {
192
+
slog.Info("Shutting down scanner queue")
193
+
194
+
// Close the jobs channel to signal no more jobs
195
+
close(q.jobs)
196
+
197
+
// Wait for all workers to finish
198
+
q.wg.Wait()
199
+
200
+
// Close results channel
201
+
close(q.results)
202
+
203
+
// Cancel context
204
+
q.cancel()
205
+
206
+
slog.Info("Scanner queue shut down complete")
207
+
}
208
+
209
+
// Len returns the number of jobs currently in the queue
210
+
func (q *Queue) Len() int {
211
+
return len(q.jobs)
212
+
}
213
+
214
+
// convertToInt64 converts an interface{} number to int64, handling both float64 and int64
215
+
func convertToInt64(v interface{}) int64 {
216
+
switch n := v.(type) {
217
+
case float64:
218
+
return int64(n)
219
+
case int64:
220
+
return n
221
+
case int:
222
+
return int64(n)
223
+
default:
224
+
return 0
225
+
}
226
+
}
+123
pkg/hold/scanner/storage.go
+123
pkg/hold/scanner/storage.go
···
1
+
package scanner
2
+
3
+
import (
4
+
"context"
5
+
"crypto/sha256"
6
+
"encoding/json"
7
+
"fmt"
8
+
"log/slog"
9
+
"time"
10
+
11
+
"atcr.io/pkg/atproto"
12
+
)
13
+
14
+
// storeResults uploads scan results and creates ORAS manifest records in the hold's PDS
15
+
func (w *Worker) storeResults(ctx context.Context, job *ScanJob, sbomDigest, vulnDigest string, vulnJSON []byte, summary VulnerabilitySummary) error {
16
+
if !w.config.Scanner.VulnEnabled {
17
+
slog.Info("Vulnerability scanning disabled, skipping result storage")
18
+
return nil
19
+
}
20
+
21
+
slog.Info("Storing scan results as ORAS artifact",
22
+
"repository", job.Repository,
23
+
"subjectDigest", job.ManifestDigest,
24
+
"vulnDigest", vulnDigest)
25
+
26
+
// Create ORAS manifest for vulnerability report
27
+
orasManifest := map[string]interface{}{
28
+
"schemaVersion": 2,
29
+
"mediaType": "application/vnd.oci.image.manifest.v1+json",
30
+
"artifactType": "application/vnd.atcr.vulnerabilities+json",
31
+
"config": map[string]interface{}{
32
+
"mediaType": "application/vnd.oci.empty.v1+json",
33
+
"digest": "sha256:44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a", // Empty JSON object
34
+
"size": 2,
35
+
},
36
+
"subject": map[string]interface{}{
37
+
"mediaType": "application/vnd.oci.image.manifest.v1+json",
38
+
"digest": job.ManifestDigest,
39
+
"size": 0, // We don't have the size, but it's optional
40
+
},
41
+
"layers": []map[string]interface{}{
42
+
{
43
+
"mediaType": "application/json",
44
+
"digest": vulnDigest,
45
+
"size": len(vulnJSON),
46
+
"annotations": map[string]string{
47
+
"org.opencontainers.image.title": "vulnerability-report.json",
48
+
},
49
+
},
50
+
},
51
+
"annotations": map[string]string{
52
+
"io.atcr.vuln.critical": fmt.Sprintf("%d", summary.Critical),
53
+
"io.atcr.vuln.high": fmt.Sprintf("%d", summary.High),
54
+
"io.atcr.vuln.medium": fmt.Sprintf("%d", summary.Medium),
55
+
"io.atcr.vuln.low": fmt.Sprintf("%d", summary.Low),
56
+
"io.atcr.vuln.total": fmt.Sprintf("%d", summary.Total),
57
+
"io.atcr.vuln.scannedAt": time.Now().Format(time.RFC3339),
58
+
"io.atcr.vuln.scannerVersion": w.getScannerVersion(),
59
+
},
60
+
}
61
+
62
+
// Encode ORAS manifest to JSON
63
+
orasManifestJSON, err := json.Marshal(orasManifest)
64
+
if err != nil {
65
+
return fmt.Errorf("failed to encode ORAS manifest: %w", err)
66
+
}
67
+
68
+
// Calculate ORAS manifest digest
69
+
orasDigest := fmt.Sprintf("sha256:%x", sha256Bytes(orasManifestJSON))
70
+
71
+
// Upload ORAS manifest blob to storage
72
+
if err := w.uploadBlob(ctx, orasDigest, orasManifestJSON); err != nil {
73
+
return fmt.Errorf("failed to upload ORAS manifest blob: %w", err)
74
+
}
75
+
76
+
// Create manifest record in hold's PDS
77
+
if err := w.createManifestRecord(ctx, job, orasDigest, orasManifestJSON, summary); err != nil {
78
+
return fmt.Errorf("failed to create manifest record: %w", err)
79
+
}
80
+
81
+
slog.Info("Successfully stored scan results", "orasDigest", orasDigest)
82
+
return nil
83
+
}
84
+
85
+
// createManifestRecord creates an ORAS manifest record in the hold's PDS
86
+
func (w *Worker) createManifestRecord(ctx context.Context, job *ScanJob, orasDigest string, orasManifestJSON []byte, summary VulnerabilitySummary) error {
87
+
// Create ManifestRecord from ORAS manifest
88
+
record, err := atproto.NewManifestRecord(job.Repository, orasDigest, orasManifestJSON)
89
+
if err != nil {
90
+
return fmt.Errorf("failed to create manifest record: %w", err)
91
+
}
92
+
93
+
// Set SBOM/vulnerability specific fields
94
+
record.OwnerDID = job.UserDID
95
+
record.ScannedAt = time.Now().Format(time.RFC3339)
96
+
record.ScannerVersion = w.getScannerVersion()
97
+
98
+
// Add hold DID (this ORAS artifact is stored in the hold's PDS)
99
+
record.HoldDID = w.pds.DID()
100
+
101
+
// Convert digest to record key (remove "sha256:" prefix)
102
+
rkey := orasDigest[len("sha256:"):]
103
+
104
+
// Store record in hold's PDS
105
+
slog.Info("Creating manifest record in hold's PDS",
106
+
"collection", atproto.ManifestCollection,
107
+
"rkey", rkey,
108
+
"ownerDid", job.UserDID)
109
+
110
+
_, _, err = w.pds.CreateManifestRecord(ctx, record, rkey)
111
+
if err != nil {
112
+
return fmt.Errorf("failed to put record in PDS: %w", err)
113
+
}
114
+
115
+
slog.Info("Manifest record created successfully", "uri", fmt.Sprintf("at://%s/%s/%s", w.pds.DID(), atproto.ManifestCollection, rkey))
116
+
return nil
117
+
}
118
+
119
+
// sha256Bytes calculates SHA256 hash of byte slice
120
+
func sha256Bytes(data []byte) []byte {
121
+
hash := sha256.Sum256(data)
122
+
return hash[:]
123
+
}
+128
pkg/hold/scanner/syft.go
+128
pkg/hold/scanner/syft.go
···
1
+
package scanner
2
+
3
+
import (
4
+
"context"
5
+
"crypto/sha256"
6
+
"fmt"
7
+
"log/slog"
8
+
"os"
9
+
10
+
"github.com/anchore/syft/syft"
11
+
"github.com/anchore/syft/syft/format"
12
+
"github.com/anchore/syft/syft/format/spdxjson"
13
+
"github.com/anchore/syft/syft/sbom"
14
+
"github.com/anchore/syft/syft/source/directorysource"
15
+
)
16
+
17
+
// generateSBOM generates an SBOM using Syft from an extracted image directory
18
+
// Returns the SBOM object, SBOM JSON, its digest, and any error
19
+
func (w *Worker) generateSBOM(ctx context.Context, imageDir string) (*sbom.SBOM, []byte, string, error) {
20
+
slog.Info("Generating SBOM with Syft", "imageDir", imageDir)
21
+
22
+
// Check if directory exists and is accessible
23
+
entries, err := os.ReadDir(imageDir)
24
+
if err != nil {
25
+
return nil, nil, "", fmt.Errorf("failed to read image directory: %w", err)
26
+
}
27
+
slog.Info("Image directory contents",
28
+
"path", imageDir,
29
+
"entries", len(entries),
30
+
"sampleFiles", func() []string {
31
+
var samples []string
32
+
for i, e := range entries {
33
+
if i >= 20 {
34
+
break
35
+
}
36
+
samples = append(samples, e.Name())
37
+
}
38
+
return samples
39
+
}())
40
+
41
+
// Create Syft source from directory
42
+
src, err := directorysource.NewFromPath(imageDir)
43
+
if err != nil {
44
+
return nil, nil, "", fmt.Errorf("failed to create Syft source: %w", err)
45
+
}
46
+
defer src.Close()
47
+
48
+
// Generate SBOM
49
+
slog.Info("Running Syft cataloging")
50
+
sbomResult, err := syft.CreateSBOM(ctx, src, nil)
51
+
if err != nil {
52
+
return nil, nil, "", fmt.Errorf("failed to generate SBOM: %w", err)
53
+
}
54
+
55
+
if sbomResult == nil {
56
+
return nil, nil, "", fmt.Errorf("Syft returned nil SBOM")
57
+
}
58
+
59
+
slog.Info("SBOM generated",
60
+
"packages", sbomResult.Artifacts.Packages.PackageCount(),
61
+
"distro", func() string {
62
+
if sbomResult.Artifacts.LinuxDistribution != nil {
63
+
return fmt.Sprintf("%s %s", sbomResult.Artifacts.LinuxDistribution.Name, sbomResult.Artifacts.LinuxDistribution.Version)
64
+
}
65
+
return "none"
66
+
}())
67
+
68
+
// Encode SBOM to SPDX JSON format
69
+
encoder, err := spdxjson.NewFormatEncoderWithConfig(spdxjson.DefaultEncoderConfig())
70
+
if err != nil {
71
+
return nil, nil, "", fmt.Errorf("failed to create SPDX encoder: %w", err)
72
+
}
73
+
74
+
sbomJSON, err := format.Encode(*sbomResult, encoder)
75
+
if err != nil {
76
+
return nil, nil, "", fmt.Errorf("failed to encode SBOM to SPDX JSON: %w", err)
77
+
}
78
+
79
+
// Calculate digest
80
+
hash := sha256.Sum256(sbomJSON)
81
+
digest := fmt.Sprintf("sha256:%x", hash)
82
+
83
+
slog.Info("SBOM encoded", "format", "spdx-json", "size", len(sbomJSON), "digest", digest)
84
+
85
+
// Upload SBOM blob to storage
86
+
if err := w.uploadBlob(ctx, digest, sbomJSON); err != nil {
87
+
return nil, nil, "", fmt.Errorf("failed to upload SBOM blob: %w", err)
88
+
}
89
+
90
+
return sbomResult, sbomJSON, digest, nil
91
+
}
92
+
93
+
// uploadBlob uploads a blob to storage
94
+
func (w *Worker) uploadBlob(ctx context.Context, digest string, data []byte) error {
95
+
// Convert digest to storage path (same format as distribution uses)
96
+
// Path format: /docker/registry/v2/blobs/sha256/ab/abcd1234.../data
97
+
algorithm := "sha256"
98
+
digestHex := digest[len("sha256:"):]
99
+
if len(digestHex) < 2 {
100
+
return fmt.Errorf("invalid digest: %s", digest)
101
+
}
102
+
103
+
blobPath := fmt.Sprintf("/docker/registry/v2/blobs/%s/%s/%s/data",
104
+
algorithm,
105
+
digestHex[:2],
106
+
digestHex)
107
+
108
+
slog.Info("Uploading blob to storage", "digest", digest, "size", len(data), "path", blobPath)
109
+
110
+
// Write blob to storage
111
+
writer, err := w.driver.Writer(ctx, blobPath, false)
112
+
if err != nil {
113
+
return fmt.Errorf("failed to create storage writer: %w", err)
114
+
}
115
+
defer writer.Close()
116
+
117
+
if _, err := writer.Write(data); err != nil {
118
+
writer.Cancel(ctx)
119
+
return fmt.Errorf("failed to write blob data: %w", err)
120
+
}
121
+
122
+
if err := writer.Commit(ctx); err != nil {
123
+
return fmt.Errorf("failed to commit blob: %w", err)
124
+
}
125
+
126
+
slog.Info("Successfully uploaded blob", "digest", digest)
127
+
return nil
128
+
}
+116
pkg/hold/scanner/worker.go
+116
pkg/hold/scanner/worker.go
···
1
+
package scanner
2
+
3
+
import (
4
+
"context"
5
+
"fmt"
6
+
"log/slog"
7
+
"time"
8
+
9
+
"atcr.io/pkg/hold"
10
+
"atcr.io/pkg/hold/pds"
11
+
"github.com/distribution/distribution/v3/registry/storage/driver"
12
+
)
13
+
14
+
// Worker performs vulnerability scanning on container images
15
+
type Worker struct {
16
+
config *hold.Config
17
+
driver driver.StorageDriver
18
+
pds *pds.HoldPDS
19
+
queue *Queue
20
+
}
21
+
22
+
// NewWorker creates a new scanner worker
23
+
func NewWorker(config *hold.Config, driver driver.StorageDriver, pds *pds.HoldPDS) *Worker {
24
+
return &Worker{
25
+
config: config,
26
+
driver: driver,
27
+
pds: pds,
28
+
}
29
+
}
30
+
31
+
// Start starts the worker pool and initializes vulnerability database
32
+
func (w *Worker) Start(queue *Queue) {
33
+
w.queue = queue
34
+
35
+
// Initialize vulnerability database on startup if scanning is enabled
36
+
if w.config.Scanner.VulnEnabled {
37
+
go func() {
38
+
ctx := context.Background()
39
+
if err := w.initializeVulnDatabase(ctx); err != nil {
40
+
slog.Error("Failed to initialize vulnerability database", "error", err)
41
+
slog.Warn("Vulnerability scanning will be disabled until database is available")
42
+
}
43
+
}()
44
+
}
45
+
46
+
queue.Start(w.processJob)
47
+
}
48
+
49
+
// processJob processes a single scan job
50
+
func (w *Worker) processJob(ctx context.Context, job *ScanJob) (*ScanResult, error) {
51
+
slog.Info("Processing scan job",
52
+
"repository", job.Repository,
53
+
"tag", job.Tag,
54
+
"digest", job.ManifestDigest,
55
+
"layers", len(job.Layers))
56
+
57
+
startTime := time.Now()
58
+
59
+
// Step 1: Extract image layers from storage
60
+
slog.Info("Extracting image layers", "repository", job.Repository)
61
+
imageDir, cleanup, err := w.extractLayers(ctx, job)
62
+
if err != nil {
63
+
return nil, fmt.Errorf("failed to extract layers: %w", err)
64
+
}
65
+
defer cleanup()
66
+
67
+
// Step 2: Generate SBOM with Syft
68
+
slog.Info("Generating SBOM", "repository", job.Repository)
69
+
sbomResult, _, sbomDigest, err := w.generateSBOM(ctx, imageDir)
70
+
if err != nil {
71
+
return nil, fmt.Errorf("failed to generate SBOM: %w", err)
72
+
}
73
+
74
+
// Step 3: Scan SBOM with Grype (if enabled)
75
+
var vulnJSON []byte
76
+
var vulnDigest string
77
+
var summary VulnerabilitySummary
78
+
79
+
if w.config.Scanner.VulnEnabled {
80
+
slog.Info("Scanning for vulnerabilities", "repository", job.Repository)
81
+
vulnJSON, vulnDigest, summary, err = w.scanVulnerabilities(ctx, sbomResult)
82
+
if err != nil {
83
+
return nil, fmt.Errorf("failed to scan vulnerabilities: %w", err)
84
+
}
85
+
}
86
+
87
+
// Step 4: Upload results to storage and create ORAS manifests
88
+
slog.Info("Storing scan results", "repository", job.Repository)
89
+
err = w.storeResults(ctx, job, sbomDigest, vulnDigest, vulnJSON, summary)
90
+
if err != nil {
91
+
return nil, fmt.Errorf("failed to store results: %w", err)
92
+
}
93
+
94
+
duration := time.Since(startTime)
95
+
slog.Info("Scan job completed",
96
+
"repository", job.Repository,
97
+
"tag", job.Tag,
98
+
"duration", duration,
99
+
"vulnerabilities", summary.Total)
100
+
101
+
return &ScanResult{
102
+
Job: job,
103
+
VulnerabilitiesJSON: vulnJSON,
104
+
Summary: summary,
105
+
SBOMDigest: sbomDigest,
106
+
VulnDigest: vulnDigest,
107
+
ScannedAt: time.Now(),
108
+
ScannerVersion: w.getScannerVersion(),
109
+
}, nil
110
+
}
111
+
112
+
// getScannerVersion returns the version string for the scanner
113
+
func (w *Worker) getScannerVersion() string {
114
+
// TODO: Get actual Syft and Grype versions dynamically
115
+
return "syft-v1.36.0/grype-v0.102.0"
116
+
}