Add cluster automatic MachineAPI header benchmark

[karenychen]

Summary

• add a 3:00 AM daily MachineAPI variant to the cluster automatic single-cluster benchmark
• add bootstrappingclient custom feature headers to the existing cluster automatic terraform inputs
• add MachineAPI terraform inputs with aksmachineapiheaderbatch and matching terraform test inputs

Validation

• yamllint -c .yamllint pipelines/perf-eval/Automatic\ Benchmark/cluster-automatic-single-cluster.yml --no-warnings
• terraform fmt -check -diff scenarios/perf-eval/cluster-automatic/terraform-inputs/azure.tfvars scenarios/perf-eval/cluster-automatic/terraform-inputs/azure-automatic-benchmark-acn-on.tfvars scenarios/perf-eval/cluster-automatic/terraform-inputs/azure-machineapi.tfvars scenarios/perf-eval/cluster-automatic/terraform-inputs/azure-automatic-benchmark-acn-on-machineapi.tfvars
• jq . scenarios/perf-eval/cluster-automatic/terraform-test-inputs/azure-machineapi.json scenarios/perf-eval/cluster-automatic/terraform-test-inputs/azure-automatic-benchmark-acn-on-machineapi.json
• local assertions for header values and schedule/stage gating

Test run

• Preparing a New Pipeline Test run on feat/k8s-cluster-crud-machine after PR creation.

[Copilot]

Pull request overview

Adds a new MachineAPI variant to the existing cluster-automatic perf-eval benchmark by introducing new Terraform inputs/test inputs and a dedicated daily schedule + stages in the Azure DevOps pipeline.

Changes:

• Added a new 3:00 AM daily scheduled run path for the MachineAPI variant, with dedicated stages and Terraform inputs.
• Added aks-custom-headers to existing cluster-automatic Azure Terraform inputs and introduced MachineAPI-specific Terraform inputs.
• Added Terraform test-input JSON files corresponding to the new MachineAPI .tfvars inputs for validation workflows.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
scenarios/perf-eval/cluster-automatic/terraform-test-inputs/azure-machineapi.json	Adds Terraform validation test input for the MachineAPI Azure tfvars variant.
scenarios/perf-eval/cluster-automatic/terraform-test-inputs/azure-automatic-benchmark-acn-on-machineapi.json	Adds Terraform validation test input for the ACN-on + MachineAPI Azure tfvars variant.
scenarios/perf-eval/cluster-automatic/terraform-inputs/azure.tfvars	Adds aks-custom-headers for bootstrappingclient to existing baseline Azure input.
scenarios/perf-eval/cluster-automatic/terraform-inputs/azure-automatic-benchmark-acn-on.tfvars	Adds aks-custom-headers for bootstrappingclient to the ACN-on Azure input.
scenarios/perf-eval/cluster-automatic/terraform-inputs/azure-machineapi.tfvars	Introduces a new MachineAPI Azure input with MachineAPI-specific header.
scenarios/perf-eval/cluster-automatic/terraform-inputs/azure-automatic-benchmark-acn-on-machineapi.tfvars	Introduces a new ACN-on + MachineAPI Azure input with MachineAPI-specific header.
pipelines/perf-eval/Automatic Benchmark/cluster-automatic-single-cluster.yml	Adds a MachineAPI daily schedule and new MachineAPI stages, plus stage gating by schedule display name.