feat(supervisor): optional priority class for run pods

[nicktrn]

Adds an optional priority class for run pods.

KUBERNETES_RUN_POD_PRIORITY_CLASS_NAME

When set, the value is applied as priorityClassName on the run pod spec. When unset, pods are created exactly as before.

Off by default, and inert unless set. It sits beside the existing KUBERNETES_SCHEDULER_NAME option and follows the same conditional shape:

...(env.KUBERNETES_RUN_POD_PRIORITY_CLASS_NAME
  ? { priorityClassName: env.KUBERNETES_RUN_POD_PRIORITY_CLASS_NAME }
  : {}),

Verification

typecheck --filter supervisor, format and lint clean. No changeset or .server-changes/ note: off by default, no user-visible behaviour change.

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📓 Path-based instructions (6)

**/*.{ts,tsx}

📄 CodeRabbit inference engine (.github/copilot-instructions.md)

**/*.{ts,tsx}: Use types over interfaces for TypeScript
Avoid using enums; prefer string unions or const objects instead

**/*.{ts,tsx}: Prefer static imports over dynamic imports. Only use dynamic import() when:

• Circular dependencies cannot be resolved otherwise
• Code splitting is genuinely needed for performance
• The module must be loaded conditionally at runtime
  Zod is pinned to a single version across the entire monorepo (currently 3.25.76). When adding zod to a new or existing package, use the exact same version as the rest of the repo - never a different version or a range. Mismatched zod versions cause runtime type incompatibilities (e.g., schemas from one package can't be used as body validators in another).
  Do not reintroduce V1.
  Add crumbs as you write code — not just when debugging.
  Do not invent new namespaces — pick from this table or ask first.

Files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

**/*.{ts,tsx,js,jsx}

📄 CodeRabbit inference engine (.github/copilot-instructions.md)

Use function declarations instead of default exports

Files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

**/*.ts

📄 CodeRabbit inference engine (.cursor/rules/otel-metrics.mdc)

**/*.ts: When creating or editing OTEL metrics (counters, histograms, gauges), ensure metric attributes have low cardinality by using only enums, booleans, bounded error codes, or bounded shard IDs
Do not use high-cardinality attributes in OTEL metrics such as UUIDs/IDs (envId, userId, runId, projectId, organizationId), unbounded integers (itemCount, batchSize, retryCount), timestamps (createdAt, startTime), or free-form strings (errorMessage, taskName, queueName)
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Files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

apps/supervisor/src/workloadManager/**/*

📄 CodeRabbit inference engine (apps/supervisor/CLAUDE.md)

Keep the Docker/Kubernetes container orchestration abstraction in src/workloadManager/.

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apps/**/*.{ts,tsx}

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apps/**/*.{ts,tsx}: - Apps and internal packages (apps/*, internal-packages/*): Use typecheck. Never use build for these — building proves almost nothing about correctness.
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Files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

apps/supervisor/src/env.ts

📄 CodeRabbit inference engine (apps/supervisor/CLAUDE.md)

Keep environment configuration in src/env.ts.

Files:

• apps/supervisor/src/env.ts

🧠 Learnings (9)

📚 Learning: 2026-03-22T13:26:12.060Z

Learnt from: ericallam
Repo: triggerdotdev/trigger.dev PR: 3244
File: apps/webapp/app/components/code/TextEditor.tsx:81-86
Timestamp: 2026-03-22T13:26:12.060Z
Learning: In the triggerdotdev/trigger.dev codebase, do not flag `navigator.clipboard.writeText(...)` calls for `missing-await`/`unhandled-promise` issues. These clipboard writes are intentionally invoked without `await` and without `catch` handlers across the project; keep that behavior consistent when reviewing TypeScript/TSX files (e.g., usages like in `apps/webapp/app/components/code/TextEditor.tsx`).

Applied to files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

📚 Learning: 2026-03-22T19:24:14.403Z

Learnt from: matt-aitken
Repo: triggerdotdev/trigger.dev PR: 3187
File: apps/webapp/app/v3/services/alerts/deliverErrorGroupAlert.server.ts:200-204
Timestamp: 2026-03-22T19:24:14.403Z
Learning: In the triggerdotdev/trigger.dev codebase, webhook URLs are not expected to contain embedded credentials/secrets (e.g., fields like `ProjectAlertWebhookProperties` should only hold credential-free webhook endpoints). During code review, if you see logging or inclusion of raw webhook URLs in error messages, do not automatically treat it as a credential-leak/secrets-in-logs issue by default—first verify the URL does not contain embedded credentials (for example, no username/password in the URL, no obvious secret/token query params or fragments). If the URL is credential-free per this project’s conventions, allow the logging.

Applied to files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

📚 Learning: 2026-05-18T08:21:27.694Z

Learnt from: d-cs
Repo: triggerdotdev/trigger.dev PR: 3632
File: apps/webapp/sentry.server.ts:4-21
Timestamp: 2026-05-18T08:21:27.694Z
Learning: When handling Prisma error P1001 ("Can't reach database server") in TypeScript, don’t assume a single error shape. Prisma can surface P1001 via two different error classes/fields: `PrismaClientKnownRequestError` exposes it as `err.code === "P1001"` (common during mid-query connection drops), while `PrismaClientInitializationError` exposes it as `err.errorCode === "P1001"` (common on client startup failure). Therefore, predicates should use `err.code === "P1001" || err.errorCode === "P1001"`. Do not flag `err.code === "P1001"` as “unreachable/never matches,” as it is expected in production.

Applied to files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

📚 Learning: 2026-05-18T08:21:27.694Z

Learnt from: d-cs
Repo: triggerdotdev/trigger.dev PR: 3632
File: apps/webapp/sentry.server.ts:4-21
Timestamp: 2026-05-18T08:21:27.694Z
Learning: When handling Prisma errors for P1001 ("Can't reach database server"), do not assume it only appears under a single property name. Prisma may surface P1001 via either `PrismaClientKnownRequestError` (`err.code === "P1001"`, e.g., mid-query connection drops) or `PrismaClientInitializationError` (`err.errorCode === "P1001"`, e.g., client startup connection failure). To reliably detect the condition, check `err.code === "P1001" || err.errorCode === "P1001"`, and avoid review rules that would incorrectly flag `err.code === "P1001"` as unreachable/never-matching.

Applied to files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

📚 Learning: 2026-06-13T19:53:13.759Z

Learnt from: ericallam
Repo: triggerdotdev/trigger.dev PR: 3937
File: packages/trigger-sdk/skills/realtime-and-frontend/SKILL.md:258-260
Timestamp: 2026-06-13T19:53:13.759Z
Learning: When reviewing code that uses `trigger.dev/react-hooks`’s `useRealtimeRun`, preserve the call signature where the first argument is the full realtime handle object (not `handle.id`). This is intentional to maintain type-safety and is consistent with the official docs; do not suggest changing the first argument from the handle object to `handle.id`.

Applied to files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

📚 Learning: 2026-06-17T17:13:49.929Z

Learnt from: matt-aitken
Repo: triggerdotdev/trigger.dev PR: 3948
File: apps/webapp/app/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.bulk-actions.$bulkActionParam/route.tsx:48-62
Timestamp: 2026-06-17T17:13:49.929Z
Learning: In triggerdotdev/trigger.dev, within `dashboardLoader`/`dashboardAction` (or similar context resolver code) whenever you resolve an organization ID from an organization slug for RBAC/enterprise authorization scope, always read from the primary Prisma client (`prisma`), not `$replica`. Using `$replica` can hit replica-lag and cause the RBAC lookup/authorization to run without the correct org scope (bypassing intended role enforcement). Implement the slug→org lookup with `prisma.organization.findFirst(...)` (or equivalent primary-client query) and add an inline comment documenting why the primary client is required (replica lag could lead to unscoped RBAC checks).

Applied to files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

📚 Learning: 2026-06-23T13:04:21.413Z

Learnt from: carderne
Repo: triggerdotdev/trigger.dev PR: 4023
File: apps/webapp/app/services/upsertBranch.server.ts:14-18
Timestamp: 2026-06-23T13:04:21.413Z
Learning: In TypeScript, it’s valid to `import { type X }` and then use `typeof X` in a type-only position, e.g. `type Alias = z.infer<typeof X>`. The `type` modifier suppresses the runtime import, but the type checker still has the full exported type so `z.infer<typeof X>` can resolve correctly. In code reviews, don’t flag this as a TypeScript compile error as long as `typeof X` is used in a type context (e.g., with `z.infer`, `type` aliases, generics), not as a runtime value.

Applied to files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

📚 Learning: 2026-06-04T18:16:35.386Z

Learnt from: nicktrn
Repo: triggerdotdev/trigger.dev PR: 3836
File: apps/supervisor/src/backpressure/backpressureMonitor.ts:3-5
Timestamp: 2026-06-04T18:16:35.386Z
Learning: When reviewing TypeScript in this repo, apply the rule “prefer type aliases over interfaces” only to data/object shapes and union/intersection type modeling. If an interface is being used as a behavioral contract for collaborators to implement (e.g., method-shape interfaces that define required behavior, such as `BackpressureLogger` / `BackpressureSignalSource` in `apps/supervisor/src/backpressure/backpressureMonitor.ts`), keep it as an `interface` and do not flag it as a type-alias-vs-interface violation.

Applied to files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

📚 Learning: 2026-06-09T17:58:04.699Z

Learnt from: 0ski
Repo: triggerdotdev/trigger.dev PR: 3879
File: apps/webapp/app/models/vercelIntegration.server.ts:619-630
Timestamp: 2026-06-09T17:58:04.699Z
Learning: In this codebase, outbound raw `fetch` calls should typically rely on Node/undici’s default request timeout (about ~300s) rather than adding a per-call `AbortController` + `setTimeout` wrapper inside individual functions (e.g. in files like `apps/webapp/app/models/vercelIntegration.server.ts`). During code review, do not flag the absence of a per-call timeout on a single `fetch` as an issue; if per-call timeouts are needed, they should be implemented via a codebase-wide convention (e.g., a shared fetch wrapper or documented pattern) rather than ad-hoc per-function changes.

Applied to files:

• apps/supervisor/src/workloadManager/kubernetes.ts
• apps/supervisor/src/env.ts

🔇 Additional comments (2)

apps/supervisor/src/env.ts (1)

190-190: LGTM!

apps/supervisor/src/workloadManager/kubernetes.ts (1)

374-378: LGTM!

---

Walkthrough

Adds the optional KUBERNETES_RUN_POD_PRIORITY_CLASS_NAME environment setting. When configured, #defaultPodSpec sets priorityClassName on Kubernetes run pods. When unset, the pod specification does not include priorityClassName.

Merge Risk: ⚪ Minimal · up to 4ad9a

This adds an optional priority class for run pods while preserving existing behavior when the setting is unset; no actionable merge-blocking risk remains after normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the addition of an optional priority class for supervisor run pods.
Description check	✅ Passed	The description explains the change, configuration behavior, default behavior, and verification steps; some template sections are omitted.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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