Karpenter leverages Github Actions to run our E2E test suites. These suites are triggered by:

1. Periodic schedule runs every 8 hours
2. New commits to the main branch
3. /karpenter snapshot review comments by maintainers on Pull Requests

• ./.github/workflows: Workflow files run within this repository. Relevant files for E2E testing are prefixed with e2e-
• ./.github/actions/e2e: Composite actions utilized by the E2E workflows
• ./test/cloudformation: Testing IAM Roles, Managed Prometheus Workspace, Managed Grafana Workspace
• ./test/suites: Directories defining test suites
• ./test/pkg: Common utilities and expectations
• ./test/hack: Testing scripts

1. Deploy the Cloudformation stacks into your account to enable Managed Prometheus, Managed Grafana, and the Github Actions runner policies.
2. Set the following Github Actions environment variables in your repository fork under Settings/Secrets and Variables/Actions:

   AWS_REGION: <region>
   ACCOUNT_ID: <account-id>
   ROLE_NAME: <github-actions-role-name>
   PROMETHEUS_REGION: <managed-prometheus-hosted-region>
   TIMESTREAM_REGION: <timestream-hosted-region>
   WORKSPACE_ID: <managed-prometheus-workspace-id>

3. Trigger a workflow_dispatch event against the branch with your workflow changes to run the tests in GHA.
4. [Optional] Update the SLACK_WEBHOOK_URL secret to reference a custom slack webhook url for publishing build notification messages into your build notification slack channel.