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This PR addresses an issue with the labels of NetworkNeighbors generated for CronJobs. Previously, the labels of the CronJob were used as the labels of the NetworkNeighbors, which could lead to incorrect policy enforcement, as the labels of the Pod generated by the Job may differ. The PR modifies this behavior to use the labels from the podTemplate inside the jobSpec, which will be present in the Pods generated by the Job.
main_files_walkthrough:
files:
pkg/networkmanager/network_manager.go: The changes in this file include a new condition to check if the parent workload is a CronJob. If it is, the labels from the podTemplate inside the jobSpec are used to create a new LabelSelector. If the parent workload is not a CronJob, the previous behavior is maintained. This change ensures that the correct labels are used for NetworkNeighbors in the case of CronJobs.
User Description:
Overview
This PR fixes the labels of NetworkNeighbors generated for CronJobs. Previously we were using the labels of the CronJob as the labels of the NetworkNeighbors, which will cause the policy to be not always correct, since the labels of the Pod generated by the Job may differ. Instead, we will take the labels from the podTemplate inside the jobSpec, which will be present at the Pods generated by the Job.
🎯 Main theme: Fixing label issue in NetworkNeighbors for CronJobs
📝 PR summary: This PR addresses an issue with the labels of NetworkNeighbors generated for CronJobs. Previously, the labels of the CronJob were used as the labels of the NetworkNeighbors, which could lead to incorrect policy enforcement. The PR modifies this behavior to use the labels from the podTemplate inside the jobSpec.
📌 Type of PR: Bug fix
🧪 Relevant tests added: No
⏱️ Estimated effort to review [1-5]: 2, because the PR is relatively small and the changes are straightforward, but it requires knowledge of Kubernetes CronJobs and how labels are used in policy enforcement.
🔒 Security concerns: No
PR Feedback
💡 General suggestions: The PR is well-structured and the changes are clear. However, it would be beneficial to include tests that verify the new behavior, especially given that this is a bug fix. Additionally, it would be helpful to include more context in the PR description about how this issue was discovered and the impact of the bug.
🤖 Code feedback:
relevant file:pkg/networkmanager/network_manager.go suggestion: Consider handling the error when marshalling and unmarshalling the CronJob object in a separate function to reduce the complexity of the handleContainerStarted function. [medium] relevant line:jsonBytes, err := json.Marshal(obj)
relevant file:pkg/networkmanager/network_manager.go suggestion: It would be better to use a type assertion to convert the parentWL.GetObject() to a CronJob instead of marshalling and unmarshalling the object. This would be more efficient and avoid potential errors with the marshalling process. [important] relevant line:var cronjob k8sv1beta1.CronJob
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type:
bug_fix
description:
This PR addresses an issue with the labels of
NetworkNeighborsgenerated forCronJobs. Previously, the labels of theCronJobwere used as the labels of theNetworkNeighbors, which could lead to incorrect policy enforcement, as the labels of thePodgenerated by theJobmay differ. The PR modifies this behavior to use the labels from thepodTemplateinside thejobSpec, which will be present in thePodsgenerated by theJob.main_files_walkthrough:
files:
pkg/networkmanager/network_manager.go: The changes in this file include a new condition to check if the parent workload is aCronJob. If it is, the labels from thepodTemplateinside thejobSpecare used to create a newLabelSelector. If the parent workload is not aCronJob, the previous behavior is maintained. This change ensures that the correct labels are used forNetworkNeighborsin the case ofCronJobs.User Description:
Overview
This PR fixes the labels of
NetworkNeighborsgenerated forCronJobs. Previously we were using the labels of theCronJobas the labels of theNetworkNeighbors, which will cause the policy to be not always correct, since the labels of thePodgenerated by theJobmay differ. Instead, we will take the labels from thepodTemplateinside thejobSpec, which will be present at thePodsgenerated by theJob.