Probe manual nodes for llmman on 17434 as an Ollama-API engine

[ericcurtin]

Description

Changelog title

Probe llmman on port 17434 for manual nodes

Changelog body

• Manual nodes running llmman are now detected as Ollama-API engines.

Bumps

• services: none
• nvpair-cluster-manager: none
• nvpair-engine-manager: none
• nvpair-errors: none
• nvpair-job-scheduler: none
• nvpair-manual-nodes: minor
• nvpair-node-info: none
• nvpair-node-scanner: none
• nvpair-node-settings: none
• nvpair-proxy: none
• nvpair-tui: none
• nvpair-ui-broker: none
• nvpair-workload-manager: none

llmman is a local model runner that serves the Ollama API on port 17434. Manual nodes were probed for Ollama on 11434 only, so a device running llmman was reported as having no inference engine even though ollama-proxy can route to it unchanged.

• manager.go: probeOllamaAPI tries 11434 then 17434 and reports the answering port in ollama_port; Ollama wins when both answer. 11434 literals become an ollamaPort constant.
• No broker/proxy/desktop changes: ollama_port is already forwarded to ollama-proxy, which already dials it. llmman is not added as a new engine type, per CONTRIBUTING.
• manager_test.go: TestProbeOllamaAPIFallsBackToLLMMan covers Ollama-wins, llmman-only and neither.
• README documents the probe order.

Scope

In: probing llmman on its default port, docs, test, version bump. Out: llmman as a managed local engine, mDNS-discovered nodes, non-default ports.

Validation

Testing: gofmt -l ., go vet ./..., go test ./... -count=1 in services/nvpair-manual-nodes and services/nvpair-ui-broker - clean (macOS arm64, Go 1.26). Not run against a live llmman/Ollama through the full broker/proxy path.

Risk

IPC shapes unchanged; ollama_port may now be 17434. One extra plain-HTTP probe per node per cycle when 11434 does not answer.

Checklist

• I have read the Contributing Guidelines.
• Every commit is signed off (git commit -s), certifying the Developer Certificate of Origin.
• New or existing tests cover the change.
• Relevant documentation is updated.
• I checked the diff, changed filenames, and commit messages for credentials, private data, internal URLs, internal issue identifiers, and generated artifacts.
• I recorded the validation commands and results above.
• I declared version bumps in the release-intent block above. services/versions.json is written by automation, not edited by hand.

AI-assisted, reviewed before submitting.

[Noah-Tervalon-Nvidia]

Thanks for opening this up and for your interest in PAIR! We're going to look into this and decide whether or not we want to bring this in.

[ericcurtin]

Thanks for opening this up and for your interest in PAIR! We're going to look into this and decide whether or not we want to bring this in.

@Noah-Tervalon-Nvidia cool, any feedback let me know

[ericcurtin]

Rebased onto develop.

[ericcurtin]

@Noah-Tervalon-Nvidia @ckelseynv Rebased and added the release intent block, PTAL. Thank you!

[ericcurtin]

@nv-pgoode @kjlubick PTAL when you get a chance. Thank you!