docker / docker/scout-cli

`recommendations` suggests non-LTS image

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Shell
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Description

I assume that this can probably reproduced for other images like node and so on that uses different numbering schemes for LTS vs unstable.

FROM ubuntu:24.10
RUN ls
$ docker buildx build --provenance=true --no-cache -t rcjsuen:latest .
[+] Building 6.9s (6/6) FINISHED                                                                                                                                                                                                                 docker:desktop-linux
 => [internal] load build definition from Dockerfile                                                                                                                                                                                                             0.0s
 => => transferring dockerfile: 99B                                                                                                                                                                                                                              0.0s
 => [internal] load metadata for docker.io/library/ubuntu:24.10                                                                                                                                                                                                  6.6s
 => [internal] load .dockerignore                                                                                                                                                                                                                                0.0s
 => => transferring context: 2B                                                                                                                                                                                                                                  0.0s
 => CACHED [1/2] FROM docker.io/library/ubuntu:24.10@sha256:aadf9a3f5eda81295050d13dabe851b26a67597e424a908f25a63f589dfed48f                                                                                                                                     0.0s
 => => resolve docker.io/library/ubuntu:24.10@sha256:aadf9a3f5eda81295050d13dabe851b26a67597e424a908f25a63f589dfed48f                                                                                                                                            0.0s
 => [2/2] RUN ls                                                                                                                                                                                                                                                 0.1s
 => exporting to image                                                                                                                                                                                                                                           0.1s
 => => exporting layers                                                                                                                                                                                                                                          0.0s
 => => exporting manifest sha256:854b27b3779fdabd3d2f45c1eb01c94d34ae179e24af17ac05c15f19e9c56d11                                                                                                                                                                0.0s
 => => exporting config sha256:a3b12de1e3665b9c135b79a76260c930c7a020fd36cfa46cc67b870e6185e6e0                                                                                                                                                                  0.0s
 => => exporting attestation manifest sha256:2a65288e36ffb351b4c2a494678efd086d49c460ca7521b0c9988625e6e121e3                                                                                                                                                    0.0s
 => => exporting manifest list sha256:9054544c0f6d3967c4dc22a5122bd9737a7b1adc894acde6c873fdf6ff5b3955                                                                                                                                                           0.0s
 => => naming to docker.io/library/rcjsuen:latest                                                                                                                                                                                                                0.0s
 => => unpacking to docker.io/library/rcjsuen:latest                                                                                                                                                                                                             0.0s

View build details: docker-desktop://dashboard/build/desktop-linux/desktop-linux/xkwr7aezbrd8sixw1dsdhe475

What's next:
    View a summary of image vulnerabilities and recommendations → docker scout quickview
$ docker scout recommendations rcjsuen:latest
    ✓ Image stored for indexing
    ✓ Indexed 132 packages
    ✓ Provenance obtained from attestation
    ✓ Pulled

  Target   │  rcjsuen:latest
    digest │  9054544c0f6d

## Recommended fixes

  Base image is  ubuntu:24.10

  Name            │  24.10
  Digest          │  sha256:83edc2b2f3ec4149c8ee6e67d0f53d9bb360a5b17395ab87f0a93fc0a266b218
  Vulnerabilities │    0C     0H     5M     6L
  Pushed          │ 1 month ago
  Size            │ 30 MB
  Packages        │ 132
  OS              │ 24.10


Refresh base image
  Rebuild the image using a newer base image version. Updating this may result in breaking changes.

  ✓ This image version is up to date.


Change base image
  The list displays new recommended tags in descending order, where the top results are rated as most suitable.


            Tag           │                        Details                        │   Pushed    │       Vulnerabilities
──────────────────────────┼───────────────────────────────────────────────────────┼─────────────┼──────────────────────────────
   25.04                  │ Benefits:                                             │ 3 weeks ago │    0C     0H     3M     5L
  Major OS version update │ • Image is smaller by 2.0 MB                          │             │                  -2     -1
  Also known as:          │ • Image contains 10 fewer packages                    │             │
  • plucky                │ • Tag was pushed more recently                        │             │
  • rolling               │ • Image introduces no new vulnerability but removes 3 │             │
  • plucky-20250415       │ • Major OS version update                             │             │
                          │                                                       │             │
                          │ Image details:                                        │             │
                          │ • Size: 28 MB                                         │             │
                          │ • OS: 25.04                                           │             │
                          │                                                       │             │
                          │                                                       │             │
                          │                                                       │             │

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the report with the shown Dockerfile and the docker scout recommendations rcjsuen:latest command, then trace how recommended image tags are ranked for Ubuntu and other images with different LTS numbering. Done means non-LTS or rolling tags are not incorrectly presented as the preferred recommendation, while valid LTS choices remain available.

Written by the indexing model from the issue text.

Assessment

Tech stack
docker, shell, ubuntu
Domain
cli, security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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