feat: add the mcp-tunnel addon as an opt-in catalog template#14
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mcp-tunnel exposes a private, in-cluster MCP server to Claude Managed Agents over an outbound-only tunnel — no inbound ports, no public exposure. It wraps Anthropic's MCP tunnels Helm chart (oci://us-docker.pkg.dev/anthropic-public-registry/charts/mcp-tunnel): a single Deployment running cloudflared (the outbound tunnel agent) and the routing proxy (inner-TLS termination, upstream-IP validation, hostname routing to the in-cluster MCP server). The addon ships as an opt-in template — addons/networking/mcp-tunnel/ holds a values scaffold (a Workload-Identity-Federation-mode default with tunnel-id / federation-rule / route placeholders), the per-env value files, and a README activation guide. It is deliberately not wired into applicationsets/addons-networking.yaml: the nanohype factory runs no private MCP server, so deploying it would only produce a broken setup Job. The README documents the path to enable it — request research- preview access, create a tunnel in the Console, set up authentication, fill the placeholders, and paste the ApplicationSet entry.
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Summary
mcp-tunnel— a catalog addon that exposes a private, in-cluster MCP server to Claude Managed Agents over an outbound-only tunnel, wrapping Anthropic's MCP tunnels OCI Helm chart (cloudflared+ the routing proxy).addons/networking/mcp-tunnel/holds a WIF-mode values scaffold, per-env files, and a README activation guide. Deliberately not wired intoapplicationsets/addons-networking.yaml— the factory runs no private MCP server, so deploying it would only produce a broken setup Job. The README documents the path to enable it.Test plan
task validate— yamllint + kustomize build, all overlays pass