A container registry that uses the AT Protocol for manifest storage and S3 for blob storage.
atcr.io
docker
container
atproto
go
fix tag and manifest deletion
+68
-45
+9
-11
deploy/.env.prod.template
+9
-11
deploy/.env.prod.template
···
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AWS_ACCESS_KEY_ID=
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AWS_SECRET_ACCESS_KEY=
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-
# S3 Region
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+
# S3 Region (for distribution S3 driver)
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# UpCloud regions: us-chi1, us-nyc1, de-fra1, uk-lon1, sg-sin1, etc.
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# Default: us-chi1
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AWS_REGION=us-chi1
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S3_REGION=us-chi1
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# S3 Bucket Name
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# Create this bucket in UpCloud Object Storage
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# Example: atcr-blobs
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S3_BUCKET=atcr
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# S3 Endpoint (for custom domain or UpCloud endpoint)
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# If using custom domain (blobs.atcr.io):
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# S3_ENDPOINT=https://blobs.atcr.io
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# If using UpCloud default endpoint:
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# S3_ENDPOINT=https://s3.us-chi1.upcloudobjects.com
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# S3 Endpoint
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# Get this from UpCloud Console → Storage → Object Storage → Your bucket → "S3 endpoint"
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# Format: https://[bucket-id].upcloudobjects.com
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# Example: https://6vmss.upcloudobjects.com
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#
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# IMPORTANT: If using custom domain, create CNAME:
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# blobs.atcr.io → [bucket].us-chi1.upcloudobjects.com
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# (with Cloudflare proxy DISABLED - gray cloud)
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S3_ENDPOINT=https://blobs.atcr.io
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# NOTE: Use the bucket-specific endpoint, NOT a custom domain
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# Custom domains break presigned URL generation
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S3_ENDPOINT=https://6vmss.upcloudobjects.com
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# S3 Region Endpoint (alternative to S3_ENDPOINT)
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# Use this if your S3 driver requires region-specific endpoint format
+24
-3
pkg/appview/db/queries.go
+24
-3
pkg/appview/db/queries.go
···
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}
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// DeleteManifest deletes a manifest and its associated layers
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// If repository is empty, deletes all manifests matching did and digest
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func DeleteManifest(db *sql.DB, did, repository, digest string) error {
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_, err := db.Exec(`
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DELETE FROM manifests WHERE did = ? AND repository = ? AND digest = ?
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`, did, repository, digest)
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var err error
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if repository == "" {
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// Delete by DID + digest only (used when repository is unknown, e.g., Jetstream DELETE events)
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_, err = db.Exec(`DELETE FROM manifests WHERE did = ? AND digest = ?`, did, digest)
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} else {
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// Delete specific manifest
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_, err = db.Exec(`DELETE FROM manifests WHERE did = ? AND repository = ? AND digest = ?`, did, repository, digest)
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}
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return err
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}
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···
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}
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1017
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return stars, rows.Err()
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+
}
1025
+
1026
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// CleanupOrphanedTags removes tags whose manifest digest no longer exists
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// This handles cases where manifests were deleted but tags pointing to them remain
1028
+
func CleanupOrphanedTags(db *sql.DB, did string) error {
1029
+
_, err := db.Exec(`
1030
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DELETE FROM tags
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WHERE did = ?
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AND NOT EXISTS (
1033
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SELECT 1 FROM manifests
1034
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WHERE manifests.did = tags.did
1035
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AND manifests.digest = tags.digest
1036
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)
1037
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`, did)
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return err
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}
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// DeleteStarsNotInList deletes stars from the database that are not in the provided list
+7
pkg/appview/jetstream/backfill.go
+7
pkg/appview/jetstream/backfill.go
···
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fmt.Printf("WARNING: Failed to reconcile deletions for %s: %v\n", did, err)
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}
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// After processing manifests, clean up orphaned tags (tags pointing to non-existent manifests)
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if collection == atproto.ManifestCollection {
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if err := db.CleanupOrphanedTags(b.db, did); err != nil {
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fmt.Printf("WARNING: Failed to cleanup orphaned tags for %s: %v\n", did, err)
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+
}
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}
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+
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return recordCount, nil
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}
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+8
-31
pkg/appview/jetstream/worker.go
+8
-31
pkg/appview/jetstream/worker.go
···
6
6
"encoding/json"
7
7
"fmt"
8
8
"net/url"
9
-
"strings"
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9
"sync"
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"time"
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11
···
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}
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if commit.Operation == "delete" {
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-
// Delete manifest
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-
repo := extractRepoFromRKey(commit.RKey)
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+
// Delete manifest - rkey is just the digest, repository is not encoded
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digest := commit.RKey
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-
return db.DeleteManifest(w.db, commit.DID, repo, digest)
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+
if err := db.DeleteManifest(w.db, commit.DID, "", digest); err != nil {
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return err
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+
}
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// Clean up any orphaned tags pointing to this manifest
426
+
return db.CleanupOrphanedTags(w.db, commit.DID)
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}
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// Parse manifest record
···
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}
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if commit.Operation == "delete" {
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-
// Delete tag
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parts := strings.Split(commit.RKey, "/")
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if len(parts) < 2 {
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return fmt.Errorf("invalid tag rkey: %s", commit.RKey)
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}
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repo := strings.Join(parts[:len(parts)-1], "/")
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tag := parts[len(parts)-1]
502
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// Delete tag - decode rkey back to repository and tag
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+
repo, tag := atproto.RKeyToRepositoryTag(commit.RKey)
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return db.DeleteTag(w.db, commit.DID, repo, tag)
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}
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···
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Status string `json:"status,omitempty"`
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}
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-
// Helper functions
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func extractRepoFromRKey(rkey string) string {
612
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// RKey format: <digest> or <repo>/<digest>
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// For manifest, it's just the digest
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-
parts := strings.Split(rkey, "/")
615
-
if len(parts) > 1 {
616
-
return parts[0]
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}
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return ""
619
-
}
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-
621
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func calculateManifestSize(manifest *atproto.ManifestRecord) int64 {
622
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var total int64
623
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total += manifest.Config.Size
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for _, layer := range manifest.Layers {
625
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total += layer.Size
626
-
}
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return total
628
-
}
+20
pkg/atproto/manifest_store.go
+20
pkg/atproto/manifest_store.go
···
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return key
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}
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+
// RKeyToRepositoryTag converts an ATProto record key back to repository and tag
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+
// This is the inverse of repositoryTagToRKey
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+
// Note: If the tag contains underscores, this will split on the LAST underscore
213
+
func RKeyToRepositoryTag(rkey string) (repository, tag string) {
214
+
// Find the last underscore to split repository and tag
215
+
lastUnderscore := strings.LastIndex(rkey, "_")
216
+
if lastUnderscore == -1 {
217
+
// No underscore found - treat entire string as tag with empty repository
218
+
return "", rkey
219
+
}
220
+
221
+
repository = rkey[:lastUnderscore]
222
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tag = rkey[lastUnderscore+1:]
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+
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// Convert dashes back to slashes in repository
225
+
repository = strings.ReplaceAll(repository, "-", "/")
226
+
227
+
return repository, tag
228
+
}
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+
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// GetLastFetchedHoldEndpoint returns the hold endpoint from the most recently fetched manifest
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// This is used by the routing repository to cache the hold for blob requests
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func (s *ManifestStore) GetLastFetchedHoldEndpoint() string {