adding routines for better performance of NP

[yuleib]

Type

enhancement

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Description

• Introduced goroutines to handle the generation of ingress and egress rules in parallel, improving the performance of the network policy generation process.
• Imported the sync package and declared a sync.WaitGroup variable wg at the global scope.
• In the GenerateNetworkPolicy function, goroutines are created for each ingress and egress neighbor, and the wg.Add(1) and wg.Done() calls are used to manage the wait group counter.
• Added a wg.Wait() call to block until all goroutines have finished their execution.

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PR changes walkthrough

Relevant files

Enhancement

1 files networkpolicy.go                                                                                        pkg/apis/softwarecomposition/networkpolicy/networkpolicy.go **The changes in this file are focused on improving the performance of the network policy generation process. This is achieved by introducing goroutines to handle the generation of ingress and egress rules in parallel. A `sync.WaitGroup` is used to ensure all goroutines complete their execution before proceeding. The `sync` package is imported and a `sync.WaitGroup` variable `wg` is declared at the global scope. In the `GenerateNetworkPolicy` function, goroutines are created for each ingress and egress neighbor, and the `wg.Add(1)` and `wg.Done()` calls are used to manage the wait group counter. Finally, a `wg.Wait()` call is added to block until all goroutines have finished their execution.** +41/-26

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User description

adding routines for better performance of NP

[codiumai-pr-agent-free[bot]]

PR Description updated to latest commit (https://github.com/kubescape/storage/commit/67e8e96dc6fd6bba539873708198da7d58312184)

[codiumai-pr-agent-free[bot]]

PR Analysis

• 🎯 Main theme: Introducing goroutines for parallel generation of ingress and egress rules in network policy
• 📝 PR summary: This PR enhances the performance of the network policy generation process by introducing goroutines to handle the generation of ingress and egress rules in parallel. It uses the sync package to manage the synchronization of these goroutines.
• 📌 Type of PR: Enhancement
• 🧪 Relevant tests added: No
• ⏱️ Estimated effort to review [1-5]: 3, because the PR introduces concurrency which requires careful review to ensure correct synchronization and no race conditions.
• 🔒 Security concerns: No security concerns found

  PR Feedback

💡 General suggestions: The PR is generally well-structured and the use of goroutines should improve the performance of the network policy generation process. However, it would be beneficial to add some tests to ensure that the parallelization works as expected and does not introduce any race conditions.

🤖 Code feedback:

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relevant file	pkg/apis/softwarecomposition/networkpolicy/networkpolicy.go
suggestion	Consider using a mutex to protect the shared resources (`networkPolicy.Spec.Ingress`, `networkPolicy.Spec.Egress`, `generatedNetworkPolicy.PoliciesRef`, `ingressHash`, `egressHash`) from concurrent access which could lead to race conditions. [important]
relevant line	"+ go func(neighborIngress softwarecomposition.NetworkNeighbor) {"

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relevant file	pkg/apis/softwarecomposition/networkpolicy/networkpolicy.go
suggestion	The `wg.Done()` should be deferred after `wg.Add(1)` to ensure it's called even if the function panics. [important]
relevant line	"+ wg.Done()"

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[dwertent]

We see the generating is very fast, is there is no need to add routines