Move here the existing integrations from the main Falco repository

[leodido]

Motivation

As discussed with the whole community during yesterday's community call, we're going to move out from the main Falco repository its integrations/ directory.

This relates to the more broader discussion about Falco's official artifacts (falcosecurity/falco#1114).

Feature

Move here the integrations/ directory of Falco.

/assign @maxgio92

Wait for falcosecurity/test-infra#113 to be merged in, thanks! 🥇

[leogr]

Cross-linking falcosecurity/falco#1145

Once the content from the integrations/ directory is moved here, I will clean up the falco repo.

[maxgio92]

Hi all,
I just opened a PR for this, merely starting from moving the whole integrations/ directory in the root of this project; I think that could be an as good as little starting point, what do you think?

I don't know if alternatively, you'd want to maintain the history of the related integrations' code, because as is the history is overwritten.

I also read the interesting discussion led by @kris-nova about the Falco artifacts and as discussed also in the last call I totally understand the point and agree.
Because of this I'll keep in mind the real scope of Falco in the whole stack when thinking about the benefis that the integrations - i.e. Kubernetes resources, but not only - could bring and to not to force technologies where they shouldn't, especially from the security perspective.

Thank you all