add n8n and mcp example

[drogovozDP]

What this PR does / why we need it:

This PR adds a new example with n8n and agent-sandbox mcp integration to manage agent sandbox resources.

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[kubernetes-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: drogovozDP
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Needs approval from an approver in each of these files:

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[kubernetes-prow]

Hi @drogovozDP. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work.

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[Copilot]

Pull request overview

Adds a new examples/n8n-mcp walkthrough demonstrating n8n + agent-sandbox MCP server integration, including a simple sandbox runtime image and the Kubernetes manifests needed to provision a SandboxTemplate + SandboxWarmPool.

Changes:

• Added SandboxTemplate and SandboxWarmPool manifests to stand up a basic runtime in-cluster.
• Added a small FastAPI-based runtime server + Dockerfile to provide exec and file-management endpoints.
• Added a README documenting local KinD setup, MCP server configuration, and n8n usage steps.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
examples/n8n-mcp/source/warmpool.yaml	New SandboxWarmPool manifest referencing the example template.
examples/n8n-mcp/source/template.yaml	New SandboxTemplate manifest for the example runtime pod.
examples/n8n-mcp/source/server.py	New FastAPI runtime server providing exec and file endpoints.
examples/n8n-mcp/source/Dockerfile	New runtime container build for the example server.
examples/n8n-mcp/README.md	New end-to-end setup guide for KinD + MCP server + n8n.

[aditya-shantanu]

/ok-to-test

[kubernetes-prow]

@drogovozDP: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
presubmit-test-autogen-up-to-date	a92edb4	link	true	/test presubmit-test-autogen-up-to-date
presubmit-agent-sandbox-benchmarks-kops-gcp-kindnet	a92edb4	link	false	/test presubmit-agent-sandbox-benchmarks-kops-gcp-kindnet

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.