fix exit code - Githubissues

dwertent commented 7 months ago

User description

Overview

Type

bug_fix, enhancement

Description

Centralized the termination exit code fetching logic into a new helper function in pkg/objectcache/helpers.go.
Increased the buffer size for openWorkerChan in pkg/containerwatcher/v1/container_watcher.go to handle more events.
Improved and standardized logging across various modules, changing some from Info to Debug level.
Removed outdated and redundant code, including unnecessary monitoring stop code and unused methods.

Changes walkthrough

Relevant files

Enhancement

11 files

applicationprofile_manager.go `Refactor Termination Exit Code Handling and Cleanup Logging` pkg/applicationprofilemanager/v1/applicationprofile_manager.go Updated the method for fetching the termination exit code to use a new helper function. Removed redundant logging and simplified error handling. Removed outdated TODO comments.	+1/-20
container_watcher.go `Increase Buffer Size for Open Worker Channel` pkg/containerwatcher/v1/container_watcher.go Increased the buffer size for `openWorkerChan` to handle more events.	+1/-1
container_watcher_private.go `Improve Logging for Container Monitoring` pkg/containerwatcher/v1/container_watcher_private.go Added logging when monitoring time ends. Updated logging message for stopping container monitoring.	+3/-2
network_manager.go `Refactor Network Manager Termination Handling` pkg/networkmanager/v1/network_manager.go Updated termination exit code handling using a new helper function. Removed redundant code and outdated TODO comments.	+2/-12
network_manager.go `Update Termination Exit Code Handling in Network Manager V2` pkg/networkmanager/v2/network_manager.go Updated termination exit code handling using a new helper function. Removed redundant code related to monitoring time.	+1/-13
helpers.go `Centralize Exit Code Fetching with New Helper Function` pkg/objectcache/helpers.go Added a new function `GetTerminationExitCode` to centralize exit code fetching logic. Included a delay before fetching the pod status to ensure data consistency.	+31/-0
networkneighborscache.go `Change Logging Level for Network Neighbors Cache Operations` pkg/objectcache/networkneighborscache/networkneighborscache.go Changed logging level from Info to Debug for pod and network neighbor cache operations.	+3/-5
relevancy_manager.go `Remove Redundant Monitoring Stop Code in Relevancy Manager` pkg/relevancymanager/v1/relevancy_manager.go - Removed redundant code for stopping monitoring after a set time.	+0/-10
cache.go `Update Logging for Rule Binding Operations` pkg/rulebindingmanager/cache/cache.go Updated logging messages for rule binding operations to be more informative.	+4/-5
utils.go `Remove Unused Termination Exit Code Method` pkg/utils/utils.go - Removed unused `GetTerminationExitCode` method.	+0/-33
watch.go `Change Logging Level for Fetching Storage Objects` pkg/watcher/dynamicwatcher/watch.go Changed logging level from Info to Debug for fetching storage objects.	+1/-1

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

PR Description updated to latest commit (https://github.com/kubescape/node-agent/commit/7a2aaf749779dd742fe0cd0d7489d389245fc479)

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

PR Review

⏱️ Estimated effort to review [1-5]	3, because the PR involves multiple files and changes across various components, including logging, error handling, and container management. The changes are not overly complex but require a good understanding of the existing system and the implications of the modifications on system behavior.
🧪 Relevant tests	No
🔍 Possible issues	Possible Bug: The addition of a 3-second delay in `GetTerminationExitCode` in `pkg/objectcache/helpers.go` could introduce unnecessary latency and potential timing issues in container status updates.
🔍 Possible issues	Performance Concern: Doubling the buffer size for `openWorkerChan` in `pkg/containerwatcher/v1/container_watcher.go` from 50000 to 100000 might increase memory consumption, which could impact systems with limited resources.
🔒 Security concerns	No

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

PR Code Suggestions

Category	Suggestions
Enhancement	Handle non-zero termination exit codes appropriately. ___ Consider handling the case where the termination exit code is not zero. Currently, the code only sets the status to completed if the exit code is zero, but does not handle other exit codes which might indicate an error or different state. [pkg/applicationprofilemanager/v1/applicationprofile_manager.go [179-181]](https://github.com/kubescape/node-agent/pull/270/files#diff-fc815317651e17975c117749e7661127dbcde82fd9d4d36ebc76cb5b09b3c54eR179-R181) ```diff -if objectcache.GetTerminationExitCode(am.k8sObjectCache, container.K8s.Namespace, container.K8s.PodName, container.K8s.ContainerName, container.Runtime.ContainerID) == 0 { +exitCode := objectcache.GetTerminationExitCode(am.k8sObjectCache, container.K8s.Namespace, container.K8s.PodName, container.K8s.ContainerName, container.Runtime.ContainerID) +if exitCode == 0 { watchedContainer.SetStatus(utils.WatchedContainerStatusCompleted) +} else { + // Handle non-zero exit codes appropriately + watchedContainer.SetStatus(utils.WatchedContainerStatusFailed) } ```
Enhancement	Handle non-zero termination exit codes appropriately in the NetworkManager. ___ Add error handling for the case where `GetTerminationExitCode` returns a non-zero exit code, similar to the suggestion for the `ApplicationProfileManager`. [pkg/networkmanager/v2/network_manager.go [195-196]](https://github.com/kubescape/node-agent/pull/270/files#diff-0d21f2a259391c6d4901ddffa2252ee46113d379a1453d54cbcecbbe0fa331f6R195-R196) ```diff -if objectcache.GetTerminationExitCode(nm.k8sObjectCache, container.K8s.Namespace, container.K8s.PodName, container.K8s.ContainerName, container.Runtime.ContainerID) == 0 { +exitCode := objectcache.GetTerminationExitCode(nm.k8sObjectCache, container.K8s.Namespace, container.K8s.PodName, container.K8s.ContainerName, container.Runtime.ContainerID) +if exitCode == 0 { watchedContainer.SetStatus(utils.WatchedContainerStatusCompleted) +} else { + // Handle non-zero exit codes appropriately + watchedContainer.SetStatus(utils.WatchedContainerStatusFailed) } ```
Best practice	Ensure proper order of operations when handling container timeout. ___ Ensure that the `unregisterContainer` function is called before removing the container from `timeBasedContainers` to maintain consistency in state management across different components. [pkg/containerwatcher/v1/container_watcher_private.go [37-43]](https://github.com/kubescape/node-agent/pull/270/files#diff-6f95b4caa6090a17da5aed1923600fd049392d228e0fba99cc212f48111f3ffeR37-R43) ```diff logger.L().Info("monitoring time ended", helpers.String("container ID", notif.Container.Runtime.ContainerID), helpers.String("k8s workload", k8sContainerID)) +ch.unregisterContainer(notif.Container) ch.timeBasedContainers.Remove(notif.Container.Runtime.ContainerID) ch.applicationProfileManager.ContainerReachedMaxTime(notif.Container.Runtime.ContainerID) ch.relevancyManager.ContainerReachedMaxTime(notif.Container.Runtime.ContainerID) ch.networkManagerv1.ContainerReachedMaxTime(notif.Container.Runtime.ContainerID) ch.networkManager.ContainerReachedMaxTime(notif.Container.Runtime.ContainerID) -ch.unregisterContainer(notif.Container) ```
Best practice	Add error handling for namespace selector string conversion. ___ Consider adding error handling after attempting to convert the namespace selector to a string, as this operation can fail and should be managed properly. [pkg/rulebindingmanager/cache/cache.go [167]](https://github.com/kubescape/node-agent/pull/270/files#diff-0674d450411ce55370a6341da8d3a34cadffe21ba15112d3f29955de58e51156R167-R167) ```diff nsSelector, err := metav1.LabelSelectorAsSelector(&ruleBinding.Spec.NamespaceSelector) +if err != nil { + logger.L().Error("failed to convert namespace selector to string", helpers.Error(err)) + return nil +} ```
Performance	Remove unnecessary sleep to improve performance. ___ Remove the `time.Sleep` call from the `GetTerminationExitCode` function to avoid unnecessary delays and potential performance issues, especially in a production environment. [pkg/objectcache/helpers.go [88-89]](https://github.com/kubescape/node-agent/pull/270/files#diff-c3c31bc262745301f426617a192caff8620684b7c186ab7e05fc9b6eac54237eR88-R89) ```diff -time.Sleep(3 * time.Second) podStatus := k8sObjectsCache.GetPodStatus(namespace, podName) ```

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