docs: add NodeWright custom resource reference - #545
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Adds docs/user-guide/custom-resource.md, a field-by-field reference for the NodeWright CR. The docs tree covered individual features but never the resource as a whole, and several long-standing fields had no user-facing documentation at all: serial, configMap/configInterrupts, containerSHA, agentImageOverride, env, gracefulShutdown, and the nodewright.nvidia.com/ignore label. stageTimeout existed only in the package-execution-as-jobs design doc. The page is structured as three passes over the same material: a fully annotated example, quick-reference tables per struct, then prose grouped by intent (targeting, rollout control, packages, live rollout control, validation). Fields with an existing guide get the shape and the gotcha plus a link rather than a duplicated explanation. Documents several behaviors that were only discoverable from the code: - The ignore label does not free batch capacity. Nodes are picked into the batch and then skipped as blocked, so an ignored node consumes a slot and stalls a sequencing: all rollout. - An omitted interruptionBudget means 100%, not a conservative default. - Interrupts coalesce across packages, ranked reboot > restartAllServices > service > noop, so a node may see a stronger interrupt than a package declares. - podNonInterruptLabels and nodeSelectors treat an empty selector oppositely: the former is special-cased to mean no pods, the latter resolves to all nodes. Also wires the page into docs/README.md, the docs/index.yml nav, and two links from the overview. Verified: all 21 YAML snippets parse, all internal links and heading anchors resolve, and every stated default was cross-checked against its kubebuilder marker or the code path supplying it. Signed-off-by: Alex Yuskauskas <ayuskauskas@nvidia.com>
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Aug 26, 2026
The serial section pointed at interruptionBudget alone as the way to control how many nodes run at once, omitting deploymentPolicy — the other, mutually exclusive mechanism. It also left the most likely misreading unanswered: serial sounds like "one node at a time" and is not. States that explicitly and gives the recipe for both mechanisms, noting that only the fixed strategy holds a batch size of 1 (linear and exponential grow the batch after a successful round). Signed-off-by: Alex Yuskauskas <ayuskauskas@nvidia.com>
markdownlint MD036 (no-emphasis-as-heading) is enforced in ci/.markdownlint-cli2.yaml, and the validation section used bold text as pseudo-headings for its three groups. Promotes them to h3, which is also what the rest of the page uses for subsections under an h2. Verified with the pinned markdownlint-cli2 v0.23.2 over the same 105 tracked markdown files CI lints: 0 issues. Signed-off-by: Alex Yuskauskas <ayuskauskas@nvidia.com>
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Included review availability: Your plan provides up to 12 included reviews per hour; 9 remain after this review. 📝 WalkthroughWalkthroughAdded a comprehensive NodeWright Custom Resource reference. The documentation covers resource fields, targeting, rollout policies, package execution, configuration, interrupts, resources, timeouts, uninstall behavior, annotations, validation, and status semantics. Added navigation and cross-links from the README and getting-started guide. Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to The new custom resource reference improves discoverability, but its complete example currently conflicts with the described pause and disable behavior, which could mislead users configuring rollouts. The PR is otherwise mergeable with explicit owner follow-up to correct that example. Suggested reviewers: 🚥 Pre-merge checks | ✅ 4✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Actionable comments posted: 2
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Inline comments:
In `@docs/user-guide/custom-resource.md`:
- Around line 34-35: Update the pause and disable annotation example values to
match their comments: use "true" when demonstrating stopping or skipping
behavior, or revise the comments to describe false as disabled. Ensure the
documented example’s configured behavior and explanatory comments remain
consistent.
- Around line 469-470: Update the configMap example to remove the
slash-containing sysctl.d/99-net.conf key and revise related sysctl.d/*
references to use only alphanumerics, hyphens, underscores, and periods,
consistent with Kubernetes ConfigMap.Data key rules.
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docs/README.mddocs/getting-started/overview.mddocs/index.ymldocs/user-guide/custom-resource.md
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Two review findings on the CR reference.
The configMap examples used "sysctl.d/99-net.conf" as a key and "sysctl.d/*" as
a configInterrupts glob. The operator copies spec.packages[].configMap straight
into a corev1.ConfigMap (Data: _package.ConfigMap), and the apiserver rejects
"/" in a ConfigMap key, so that example could never be applied — and it
contradicted the prose two lines below it, which already stated the allowed
charset. Switches to flat keys with an extension glob, matching what the
chainsaw suites actually use ("*.properties"), and states the no-slash trap
explicitly since reaching for a path is the natural mistake.
The metadata annotation example set pause and disable to "false" while the
trailing comments described what "true" does. Keeps the safe values and rewords
the comments to name the value they describe.
Verified: the revised configInterrupts patterns each still match a configMap key,
so the example passes the webhook rule it illustrates; 21/21 YAML blocks parse;
markdownlint clean over the 105 tracked files CI lints.
Signed-off-by: Alex Yuskauskas <ayuskauskas@nvidia.com>
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What
Adds
docs/user-guide/custom-resource.md— a field-by-field reference for the NodeWright custom resource, covering every knob a user has for controlling it, plus how targeting works across node selectors, deployment policies, and the ignore label.The docs tree documented individual features well but never the resource as a whole. Several long-standing fields had no user-facing documentation anywhere:
serial,configMap/configInterrupts,containerSHA,agentImageOverride,env,gracefulShutdown, and thenodewright.nvidia.com/ignorelabel (zero hits indocs/before this PR).stageTimeoutexisted only indocs/designs/2026-07-10-package-execution-as-jobs.md.Structure
Three passes over the same material, so the page works for skimming and for digging:
spec,packages[*],drainConfig, interrupt types), rows linking down to proseFields with an existing guide get the shape and the gotcha plus a link, not a duplicated explanation — deployment policy, drain config, priority/sequencing, runtime-required, resources, uninstall, taints, secrets.
Behaviors documented for the first time
These were only discoverable by reading the controller, and each is a plausible way to be surprised in production:
selectNodesWithCompartmentspicks the node into the batch and then skips it asblocked, so an ignored node consumes a slot — and undersequencing: allit stalls everything behind it in priority order.interruptionBudgetmeans 100%, not a conservative default. Combined with an emptynodeSelectors(which matches every node) that is a whole-cluster simultaneous rollout.fudgeInterruptWithPriorityranksreboot>restartAllServices>service>noopand merges same-rank service lists, so a node can experience a stronger interrupt than the package declares.podNonInterruptLabelsandnodeSelectorstreat an empty selector oppositely.HasNonInterruptWorkspecial-casesselector.Empty()to mean no pods; the node selector resolves tolabels.Everything(). Same type, same{}default, inverted meaning.Also
Wires the page into
docs/README.md, thedocs/index.ymlFern nav, and two links fromgetting-started/overview.md.Verification
yq)mainafter rebasingpriority: 200,sequencing: node, the fourdrainConfigbooleans, the 100% budget fallback, the min-one-node floor onpercent)lifecycle pause,package rerun) confirmed present inoperator/cmd/cli/app/Notes for review
interrupt-flow.mdanduninstall.md, with tables as used indeployment-policy.mdandresource-management.md.RELEASE_NOTES.mdentry. PerCLAUDE.md, notes are for changes that require action or surprise the reader; this documents existing behavior and changes none of it.nodewright.nvidia.com/v1alpha1throughout, with one note near the top thatskyhook.nvidia.comis read-only and a link to the migration guide, rather than a parallel legacy column in every table.statusgets a pointer toarchitecture/operator-status.mdrather than a full reference — it is an observation, not a knob.