Add labels and move generation code

PR Type:

Refactoring

PR Description:

This PR includes several changes:

The GenerateNetworkPolicy function has been moved to a separate package (networkpolicy) and made public.
Workload labels have been added to the NetworkPolicy object inside the GeneratedNetworkPolicy CRD.
A test has been added to check that labels are added successfully.

PR Main Files Walkthrough:

files:

- `pkg/registry/file/generatednetworkpolicy.go`: The `GenerateNetworkPolicy` function calls have been updated to use the new package location. - `pkg/apis/softwarecomposition/networkpolicy/networkpolicy.go`: "This is a new file where the `GenerateNetworkPolicy` function has been moved. The function now includes the addition of workload labels to the `NetworkPolicy` object. It also includes the generation of ingress and egress rules for the network policy." - `pkg/apis/softwarecomposition/networkpolicy/networkpolicy_test.go`: This new file likely contains tests for the `GenerateNetworkPolicy` function, although the specific changes are not shown in the diff.

User Description:

Add workload labels to the NetworkPolicy object inside GeneratedNetworkPolicy CRD
Move GenerateNetworkPolicy to a separate package and make it public (as it is supposed to be used by other clients)
Add one test to check that labels are added succesfully

PR Analysis

🎯 Main theme: Refactoring of code and addition of labels
📝 PR summary: This PR moves the GenerateNetworkPolicy function to a separate package and makes it public. It also adds workload labels to the NetworkPolicy object inside the GeneratedNetworkPolicy CRD. A test has been added to check that labels are added successfully.
📌 Type of PR: Refactoring
🧪 Relevant tests added: Yes
⏱️ Estimated effort to review [1-5]: 3, because the PR involves refactoring and moving of a function to a new package, which requires understanding the context and usage of the function. The addition of labels also needs to be reviewed for correctness.
🔒 Security concerns: No security concerns found

PR Feedback
💡 General suggestions: The PR is well-structured and the changes are logically grouped. The addition of labels to the NetworkPolicy object is a good enhancement. However, it would be beneficial to ensure that the moved function GenerateNetworkPolicy maintains its functionality in the new package.
🤖 Code feedback:
- relevant file: pkg/apis/softwarecomposition/networkpolicy/networkpolicy.go suggestion: Consider handling the error returned by net.ParseCIDR in a more user-friendly way. Instead of logging the error and continuing, it might be better to return the error to the caller so they can handle it appropriately. [important] relevant line: '+_, subNet, err := net.ParseCIDR(knownServer.IPBlock)'
- relevant file: pkg/apis/softwarecomposition/networkpolicy/networkpolicy.go suggestion: It seems like the GenerateNetworkPolicy function could be simplified by breaking it down into smaller, more manageable functions. This would improve readability and maintainability. [medium] relevant line: '+func GenerateNetworkPolicy(networkNeighbors softwarecomposition.NetworkNeighbors, knownServers []softwarecomposition.KnownServers, timeProvider metav1.Time) (softwarecomposition.GeneratedNetworkPolicy, error) {'
- relevant file: pkg/apis/softwarecomposition/networkpolicy/networkpolicy.go suggestion: The getSingleIP function could be improved by adding error handling. If the ipAddress is not a valid IP address, the function will return an incorrect result. [important] relevant line: '+func getSingleIP(ipAddress string) *softwarecomposition.IPBlock {'
- relevant file: pkg/registry/file/generatednetworkpolicy.go suggestion: It would be better to handle the error returned by networkpolicy.GenerateNetworkPolicy instead of just returning it. This would give the opportunity to add more context to the error message and make it more informative. [medium] relevant line: '+generatedNetworkPolicy, err := networkpolicy.GenerateNetworkPolicy(*networkNeighborsObjPtr, []softwarecomposition.KnownServers{}, metav1.Now())'

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kubescape / storage