kubescape / kubevuln

Kubevuln is an in-cluster component of the Kubescape security platform. It scans container images for vulnerabilities, using Grype as its engine.
Apache License 2.0
18 stars 19 forks source link

fix image load in registry scanning #213

Closed matthyx closed 8 months ago

matthyx commented 8 months ago

Type

bug_fix, enhancement


Description


Changes walkthrough

Relevant files
Enhancement
syft.go
Support for Registry Scanning without ImageID                       

adapters/v1/syft.go
  • Added handling for cases where imageID is empty, using imageTag as a
    reference instead.
  • +4/-0     
    Tests
    syft_test.go
    Test Case for Registry Scan without ImageID                           

    adapters/v1/syft_test.go
  • Introduced a new test case for registry scanning without an imageID.
  • +6/-0     
    Bug_fix
    scan.go
    Correct Parameter in CreateSBOM Call                                         

    core/services/scan.go
  • Modified CreateSBOM call to use workload.ImageHash instead of
    repeating workload.ImageTag.
  • +1/-1     

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    codiumai-pr-agent-free[bot] commented 8 months ago

    PR Description updated to latest commit (https://github.com/kubescape/kubevuln/commit/55623bf6377d22c6e21126dbe46dd7362390a266)

    codiumai-pr-agent-free[bot] commented 8 months ago

    PR Review

    โฑ๏ธ Estimated effort to review [1-5] 2, because the changes are straightforward and localized to specific functions, but require understanding of the context in which these functions operate. The addition of handling for cases where `imageID` is empty and the correction of a parameter in a function call are clear and concise. However, ensuring that these changes do not introduce any unintended side effects requires a good understanding of the overall system.
    ๐Ÿงช Relevant tests Yes
    ๐Ÿ” Possible issues Possible Bug: The change in `core/services/scan.go` to use `workload.ImageHash` instead of `workload.ImageTag` as a parameter in the `CreateSBOM` call might introduce issues if `workload.ImageHash` is not always equivalent or a suitable replacement for `workload.ImageTag` in all contexts where `CreateSBOM` is used.
    ๐Ÿ”’ Security concerns No

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    codiumai-pr-agent-free[bot] commented 8 months ago

    PR Code Suggestions

    CategorySuggestions                                                                                                                                                       
    Possible issue
    Handle the case where both imageID and imageTag are empty. ___ **Consider handling the case where both imageID and imageTag are empty. Currently, if
    imageID is empty, the function returns imageTag without checking if imageTag is also
    empty. This could lead to unexpected behavior or errors downstream.** [adapters/v1/syft.go [51-52]](https://github.com/kubescape/kubevuln/pull/213/files#diff-59cc1c76e75b8cc3f401be82a7ad03494324118b3eb21cb247c7b7f0ade69515R51-R52) ```diff if imageID == "" { + if imageTag == "" { + return "default-image-tag" // Or handle the error appropriately + } return imageTag } ```
    Enhancement
    Add a test case for empty imageID and imageTag. ___ **Add a test case to cover the scenario where both imageID and imageTag are empty. This will
    ensure that the normalizeImageID function behaves as expected in all cases.** [adapters/v1/syft_test.go [89-93]](https://github.com/kubescape/kubevuln/pull/213/files#diff-58134a5183879fd2da27ae7458a485bf76579b87e7269f07d7f440086178b470R89-R93) ```diff { - name: "registry scan", + name: "empty imageID and imageTag", imageID: "", - imageTag: "quay.io/matthiasb_1/kubevuln:latest", - wantErr: false, + imageTag: "", + wantErr: true, // Assuming the function should error out or handle this case differently }, ```
    Add a test case for invalid imageID format. ___ **To ensure comprehensive testing, consider adding a test case that simulates a failure in
    the normalizeImageID function, such as when an invalid imageID format is provided. This
    will help validate the error handling logic.** [adapters/v1/syft_test.go [89-93]](https://github.com/kubescape/kubevuln/pull/213/files#diff-58134a5183879fd2da27ae7458a485bf76579b87e7269f07d7f440086178b470R89-R93) ```diff { - name: "registry scan", - imageID: "", + name: "invalid imageID format", + imageID: "invalidFormat", imageTag: "quay.io/matthiasb_1/kubevuln:latest", - wantErr: false, + wantErr: true, // Assuming the function should error out on invalid formats }, ```
    Best practice
    Handle errors immediately after they occur. ___ **It's recommended to handle the error from CreateSBOM immediately after it's returned,
    before calling checkCreateSBOM. This ensures that any errors are caught and handled
    appropriately without relying on side effects from other functions.** [core/services/scan.go [314]](https://github.com/kubescape/kubevuln/pull/213/files#diff-85deac1fd3ad15a30ddc8a15245049faf294923a8058adfb7c47994034b662d8R314-R314) ```diff sbom, err := s.sbomCreator.CreateSBOM(ctx, workload.ImageSlug, workload.ImageHash, workload.ImageTag, optionsFromWorkload(workload)) +if err != nil { + return err +} s.checkCreateSBOM(err, workload.ImageTag) ```
    Maintainability
    Extract logic for handling empty imageID into a separate function. ___ **To improve code readability and maintainability, consider extracting the logic for
    handling empty imageID into a separate function. This makes the normalizeImageID function
    cleaner and its main purpose more apparent.** [adapters/v1/syft.go [51-52]](https://github.com/kubescape/kubevuln/pull/213/files#diff-59cc1c76e75b8cc3f401be82a7ad03494324118b3eb21cb247c7b7f0ade69515R51-R52) ```diff if imageID == "" { + return handleEmptyImageID(imageTag) +} + +func handleEmptyImageID(imageTag string) string { + if imageTag == "" { + return "default-image-tag" // Or handle the error appropriately + } return imageTag } ```

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    github-actions[bot] commented 8 months ago

    Summary:

    github-actions[bot] commented 8 months ago

    Summary:

    github-actions[bot] commented 8 months ago

    Summary: