[appsec / parsers] Add expr helper or event function that can add custom Alert context at runtime

[LaurenceJJones]

Currently if you want to add Alert context you can only do this from events that generate from a overflown scenario.

However, some alerts get sent without an overflown scenario (AppSec), the idea is to add either an expr or a event level function that adds alert context metadata.

The function will need to check if the key already exists and push to the slice.

[github-actions[bot]]

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[github-actions[bot]]

@LaurenceJJones: There are no 'kind' label on this issue. You need a 'kind' label to start the triage process.

• /kind feature
• /kind enhancement
• /kind refactoring
• /kind bug
• /kind packaging

Details

I am a bot created to help the crowdsecurity developers manage community feedback and contributions. You can check out my manifest file to understand my behavior and what I can do. If you want to use this for your project, you can check out the BirthdayResearch/oss-governance-bot repository.

[buixor]

/kind feature

[LaurenceJJones]

An example of custom metadata would be to add the Host header that is passed to the AppSec component or any other data maybe a cookie value so you can trace the user.