inspect

Show image metadata: layers, total size, platform details for multi-arch images, and stored signatures.

s3lo inspect <s3-ref>

The reference must include an explicit tag. Both s3:// and local:// references are supported.

Examples

s3lo inspect s3://my-bucket/myapp:v1.0
s3lo inspect s3://my-bucket/alpine:latest
s3lo inspect local://./local-s3/alpine:latest

Output

Single-archMulti-arch

Reference: s3://my-bucket/myapp:v1.0
Type:      single-arch image
Layers:    4
Total:     58.70 MB

  [1] sha256:a1b2c3d4e5f67890...  (45.20 MB)
  [2] sha256:e5f6g7h8i9j01234...  (12.10 MB)
  [3] sha256:i9j0k1l2m3n45678...   (1.30 MB)
  [4] sha256:m3n4o5p6q7r89012...   (0.10 MB)

Reference: s3://my-bucket/alpine:latest
Type:      multi-arch image index (7 platform(s))

  Platform: linux/amd64
  Digest:   sha256:a1b2c3d4e5f...
  Layers:   4
  Size:     7.80 MB

  Platform: linux/arm64
  Digest:   sha256:b2c3d4e5f6a...
  Layers:   4
  Size:     7.20 MB

  Platform: linux/arm/v7
  Digest:   sha256:c3d4e5f6a7b...
  Layers:   4
  Size:     6.90 MB
  ...

Signatures:
  3b780f64bd6940e1  (key: awskms:///alias/release-signer, signed: 2026-04-12T19:21:10Z)
  21b44047667b31d3  (key: cosign.key, signed: 2026-04-12T19:21:21Z)

The Signatures section appears only when at least one signature is stored for the image. Use s3lo sign to sign an image and s3lo verify to verify.