> For the complete documentation index, see [llms.txt](https://v2.dataos.info/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v2.dataos.info/references/dataos-resources/worker/field-reference.md).

# Field reference

Use this page to look up Worker manifest fields, required values, and nested options.

## Top-level fields

| Field         | Description                               | Required |
| ------------- | ----------------------------------------- | -------- |
| `version`     | Manifest version. Use `v2alpha`.          | Yes      |
| `name`        | Worker Resource name.                     | Yes      |
| `type`        | Resource type. Use `worker`.              | Yes      |
| `tags`        | Labels for grouping and discovery.        | No       |
| `description` | Human-readable description of the Worker. | No       |
| `spec`        | Worker runtime specification.             | Yes      |

## `spec` fields

| Field                     | Description                                                                   | Required |
| ------------------------- | ----------------------------------------------------------------------------- | -------- |
| `spec.compute`            | Compute Resource used to run the Worker.                                      | Yes      |
| `spec.replicas`           | Number of Worker replicas to maintain.                                        | No       |
| `spec.executionMode`      | Runtime execution mode. Use `default` for standard Workers.                   | No       |
| `spec.resources.requests` | CPU and memory requested for the Worker runtime.                              | No       |
| `spec.resources.limits`   | CPU and memory limits for the Worker runtime.                                 | No       |
| `spec.disk`               | Inline disk mounted into the Worker.                                          | No       |
| `spec.use.volumes`        | Existing Volume mounts consumed by the Worker.                                | No       |
| `spec.use.projection`     | Projects Secrets, environment variables, and files into the runtime.          | No       |
| `spec.stack`              | Runtime stack used by the Worker, such as `container`, `bento`, or `fastfun`. | Yes      |
| `spec.stackSpec`          | Stack-specific runtime configuration.                                         | Yes      |

## Notes

* Use `replicas` only when the Worker logic is safe to run in parallel.
* Use `executionMode: default` unless the selected stack requires another value.
* Use `disk` when storage belongs to the Worker lifecycle.
* Use `use.volumes` when storage should outlive the Worker.

For behavior and usage guidance, see [Core concepts](/references/dataos-resources/worker/core-concepts.md).


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