Feat/k8s e2e tests

[heckelmann]

This PR adds the initial functionality to run K8s E2E Tests using Chainsaw from Kyverno

This Action Requires the following environment variables

• DT_API_ENDPOINT: The URL of the Dynatrace OTLP endpoint. Example: https://<your-environment-id>.live.dynatrace.com/api/v2/otlp

• DT_API_TOKEN: The API token for the Dynatrace environment.

What is covered by this PR:

• Build a temporary container based on the current commit
• Creates a Kind Cluster
• Imports the container into the cluster
• Deploys Prometheus Node Exporter
• Deploys the Collector using the temporary image
• Executes Chainsaw Tests
  • Creates Syslog messages and verifies against Logs V2 API if the message is available in DT
  • Checks Prometheus Metrics from Node exporter is available via Metrics V2 API in DT

Note
If you merge this PR please do a squash commit to hide my commit messages ;)

[mviitane]

Seems interesting! I’m missing a high level instructions about how to run these tests and what the requirements are (like Kind). Maybe the description from PR about the scope should be stored in some README?

[heckelmann]

Seems interesting! I’m missing a high level instructions about how to run these tests and what the requirements are (like Kind). Maybe the description from PR about the scope should be stored in some README?

Currently, the tests need to be triggered manually, which is tbd. when it should run automatically.
This PR is introducing the required tooling to run E2E tests with two sample tests for syslog and prometheus.

[evan-bradley]

Thanks @heckelmann!