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
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Last chunk #220

Closed dwertent closed 7 months ago

dwertent commented 7 months ago

User description

Overview


Type

enhancement, tests


Description


Changes walkthrough

Relevant files
Enhancement
backend_utils.go
Refactor BackendAdapter Methods to Improve Data Handling 

adapters/v1/backend_utils.go
  • Changed the postResultsAsGoroutine function to not use a reference for
    the report parameter.
  • Updated the postResults function signature to accept report by value
    instead of by reference.
  • +3/-3     
    Tests
    backend_utils_test.go
    Add Unit Tests for Sending Summary and Vulnerabilities     

    adapters/v1/backend_utils_test.go
  • Added a comprehensive unit test Test_sendSummaryAndVulnerabilities to
    validate the behavior of sending summary and vulnerabilities in
    chunks.
  • Introduced helper functions for reading a report from a file and
    simulating HTTP post requests.
  • +148/-0 
    report.json
    Add Test Data for Backend Adapter Tests                                   

    adapters/v1/testdata/report.json
  • Added a new JSON file report.json under testdata to be used in unit
    testing.
  • +906/-0 

    PR-Agent usage: Comment /help on the PR to get a list of all available PR-Agent tools and their descriptions

    codiumai-pr-agent-free[bot] commented 7 months ago

    PR Description updated to latest commit (https://github.com/kubescape/kubevuln/commit/4e5e49eaa79dc3e0a7158879f336b21ee5b18ba4)

    codiumai-pr-agent-free[bot] commented 7 months ago

    PR Review

    ⏱️ Estimated effort to review [1-5] 4, because the PR includes significant changes to the handling of data structures, introduces a new unit test, and involves complex logic related to handling vulnerabilities in chunks. The changes in data passing (from pointer to value and vice versa) require careful review to ensure memory management and data integrity are maintained. Additionally, the new unit test adds complexity to the review process, requiring validation of the test logic and its coverage.
    🧪 Relevant tests Yes
    🔍 Possible issues Possible Bug: Changing the method of passing `report` from pointer to value in `postResultsAsGoroutine` and `postResults` might introduce bugs related to data consistency or memory management. It's crucial to ensure that this change does not inadvertently copy data where shared references were intended, leading to stale or inconsistent data states.
    Performance Concern: The refactoring involves changes in how data is passed and manipulated. It's important to assess the impact of these changes on performance, especially in scenarios involving large datasets.
    🔒 Security concerns No

    ✨ Review tool usage guide:
    **Overview:** The `review` tool scans the PR code changes, and generates a PR review which includes several types of feedbacks, such as possible PR issues, security threats and relevant test in the PR. More feedbacks can be [added](https://pr-agent-docs.codium.ai/tools/review/#general-configurations) by configuring the tool. The tool can be triggered [automatically](https://pr-agent-docs.codium.ai/usage-guide/automations_and_usage/#github-app-automatic-tools-when-a-new-pr-is-opened) every time a new PR is opened, or can be invoked manually by commenting on any PR. - When commenting, to edit [configurations](https://github.com/Codium-ai/pr-agent/blob/main/pr_agent/settings/configuration.toml#L23) related to the review tool (`pr_reviewer` section), use the following template: ``` /review --pr_reviewer.some_config1=... --pr_reviewer.some_config2=... ``` - With a [configuration file](https://pr-agent-docs.codium.ai/usage-guide/configuration_options/), use the following template: ``` [pr_reviewer] some_config1=... some_config2=... ``` See the review [usage page](https://pr-agent-docs.codium.ai/tools/review/) for a comprehensive guide on using this tool.
    codiumai-pr-agent-free[bot] commented 7 months ago

    PR Code Suggestions

    CategorySuggestions                                                                                                                                                       
    Best practice
    Improve error handling in fileToReport function. ___ **Consider handling the error returned by os.ReadFile and json.Unmarshal in a more graceful
    way instead of using panic. This will improve error handling and make the code more
    robust. For example, you could return an error from fileToReport and handle it
    appropriately in the calling function.** [adapters/v1/backend_utils_test.go [525-532]](https://github.com/kubescape/kubevuln/pull/220/files#diff-1ef2455e6cb7ab0c2f6004f70da0d86773938e594db96704cea0111c6f278a53R525-R532) ```diff b, err := os.ReadFile(path) if err != nil { - panic(err) + return nil, err } err = json.Unmarshal(b, &report) if err != nil { - panic(err) + return nil, err } +return report, nil ```
    Use t.Fatal or t.Errorf instead of panic for error handling in tests. ___ **Instead of using a panic inside the test case, consider using t.Fatal or t.Errorf followed
    by a return to fail the test gracefully. This approach allows the test suite to continue
    running other tests and provides a clearer indication of test failures.** [adapters/v1/backend_utils_test.go [526-527]](https://github.com/kubescape/kubevuln/pull/220/files#diff-1ef2455e6cb7ab0c2f6004f70da0d86773938e594db96704cea0111c6f278a53R526-R527) ```diff if err != nil { - panic(err) + t.Fatalf("failed to read file: %v", err) } ```
    Improve error handling by checking for nil payload in postResults. ___ **When marshaling the report object to JSON in postResults, consider handling the case where
    payload is nil due to an error. This will prevent sending invalid requests and improve
    error handling.** [adapters/v1/backend_utils.go [75-77]](https://github.com/kubescape/kubevuln/pull/220/files#diff-61c1ba4bfd4f5411d6ab13fcb175c3163eac6825ba5bc06d75823cd94f8c9ca8R75-R77) ```diff payload, err := json.Marshal(report) if err != nil { - logger.L().Ctx(ctx).Error("failed to convert to json", helpers.Error(err), + logger.L().Ctx(ctx).Error("failed to convert to json", helpers.Error(err)) + errorChan <- err + return } ```
    Ensure the use of table-driven tests with subtests for clarity and maintainability. ___ **Consider using table-driven tests with subtests for better organization and readability.
    This approach allows you to define test cases in a structured format and run them as
    subtests, making it easier to identify which test case fails and reducing code
    duplication.** [adapters/v1/backend_utils_test.go [617-657]](https://github.com/kubescape/kubevuln/pull/220/files#diff-1ef2455e6cb7ab0c2f6004f70da0d86773938e594db96704cea0111c6f278a53R617-R657) ```diff -for _, tc := range testCases { - t.Run(tc.name, func(t *testing.T) { - sendWG := &sync.WaitGroup{} - sendWG.Add(len(tc.expectedPaginationMarks)) - var reports []v1.ScanResultReport - mu := &sync.Mutex{} - httpPostFunc := func(httpClient httputils.IHttpClient, fullURL string, headers map[string]string, body []byte, timeOut time.Duration) (*http.Response, error) { - ... - } - a := &BackendAdapter{ - ... - } - report.Vulnerabilities = []containerscan.CommonContainerVulnerabilityResult{} - actualNextPartNum := a.sendSummaryAndVulnerabilities(ctx, report, "", tc.totalVulnerabilities, "1234", tc.firstVulnerabilitiesChunk, errChan, sendWG) - sendWG.Wait() - assert.Equal(t, tc.expectedNextPartNum, actualNextPartNum) - assert.Equal(t, len(tc.expectedPaginationMarks), len(reports)) - }) -} +// This is already using table-driven tests with subtests. No change needed. ```
    Enhancement
    Simplify goroutine call in postResultsAsGoroutine by passing pointer directly. ___ **The goroutine in postResultsAsGoroutine is capturing the loop variable report by value,
    which is not necessary since report is already a pointer. You can simplify the code by
    passing the pointer directly to the goroutine, avoiding the need to dereference it.** [adapters/v1/backend_utils.go [61-64]](https://github.com/kubescape/kubevuln/pull/220/files#diff-61c1ba4bfd4f5411d6ab13fcb175c3163eac6825ba5bc06d75823cd94f8c9ca8R61-R64) ```diff -go func(report v1.ScanResultReport, eventReceiverURL, imagetag string, wlid string, errorChan chan<- error, wg *sync.WaitGroup) { +go func() { defer wg.Done() - a.postResults(ctx, report, eventReceiverURL, imagetag, wlid, errorChan) -}(*report, eventReceiverURL, imagetag, wlid, errorChan, wg) + a.postResults(ctx, *report, eventReceiverURL, imagetag, wlid, errorChan) +}() ```

    ✨ Improve tool usage guide:
    **Overview:** The `improve` tool scans the PR code changes, and automatically generates suggestions for improving the PR code. The tool can be triggered [automatically](https://pr-agent-docs.codium.ai/usage-guide/automations_and_usage/#github-app-automatic-tools-when-a-new-pr-is-opened) every time a new PR is opened, or can be invoked manually by commenting on a PR. - When commenting, to edit [configurations](https://github.com/Codium-ai/pr-agent/blob/main/pr_agent/settings/configuration.toml#L78) related to the improve tool (`pr_code_suggestions` section), use the following template: ``` /improve --pr_code_suggestions.some_config1=... --pr_code_suggestions.some_config2=... ``` - With a [configuration file](https://pr-agent-docs.codium.ai/usage-guide/configuration_options/), use the following template: ``` [pr_code_suggestions] some_config1=... some_config2=... ``` See the improve [usage page](https://pr-agent-docs.codium.ai/tools/improve/) for a comprehensive guide on using this tool.
    github-actions[bot] commented 7 months ago

    Summary: