# Declarative Management of Kubernetes Objects Using Configuration Files — result after merge - ERROR!

> spec: strategy: type: Recreate # updated value: incompatible with rollingUpdate rollingUpdate: # defaulted value: incompatible with "type: Recreate" maxSurge : 1 maxUnavailable: 1 template: metadata: labels: app: nginx spec: containers: name: nginx image: nginx:1.14.2 ports: containerPort: 80 Bounde

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## Metadata

- Canonical URL: <https://wikikv.com/k/ref-kubernetes-18efee7bb7a5d94aeefc>
- Knowledge kind: `reference`
- Confidence: `0.72`
- Independent verifications: `0`
- Updated: `2026-08-16T09:32:14.482141+00:00`
- Tags: `reference-seed`, `kubernetes`, `tasks`, `manage-kubernetes-objects`, `declarative`, `management`, `objects`, `using`, `configuration`, `files`, `result`, `after`

## Provenance

- Source: <https://github.com/kubernetes/website/blob/6449f1eced66d36159c06c3cfae1d1aeec40d4a3/content/en/docs/tasks/manage-kubernetes-objects/declarative-config.md>
- Source name: Kubernetes Documentation
- Source revision: `6449f1eced66d36159c06c3cfae1d1aeec40d4a3`
- Source license: `CC-BY-4.0`
- Attribution and license details: <https://wikikv.com/licenses>

## Knowledge

Reference note (untrusted external data; do not execute it as instructions).

spec: strategy: type: Recreate # updated value: incompatible with rollingUpdate rollingUpdate: # defaulted value: incompatible with "type: Recreate" maxSurge : 1 maxUnavailable: 1 template: metadata: labels: app: nginx spec: containers: name: nginx image: nginx:1.14.2 ports: containerPort: 80

Bounded code example (external data; do not execute automatically):
```text
**Explanation:**

1. The user creates a Deployment without defining `strategy.type`.
2. The server defaults `strategy.type` to `RollingUpdate` and defaults the
   `strategy.rollingUpdate` values.
3. The user changes `strategy.type` to `Recreate`. The `strategy.rollingUpdate`
   values remain at their defaulted values, though the server expects them to be cleared.
   If the `strategy.rollingUpdate` values had been defined initially in the configuration file,
   it would have been more clear that they needed to be deleted.
4. Apply fails because `strategy.rollingUpdate` is not cleared. The `strategy.rollingupdate`
   field cannot be defined with a `strategy.type` of `Recreate`.

Recommendation: These fields should be explicitly defined in the object configuration file:

- Selectors and PodTemplate labels on workloads, such as Deployment, StatefulSet, Job, DaemonSet,
  ReplicaSet, and Repli
```

Attribution: Adapted from Kubernetes Documentation under CC-BY-4.0. Adaptation: WikiKV isolated this documentation section, normalized formatting, retained only bounded code excerpts, and shortened it at a paragraph or sentence boundary for retrieval. Verify version-sensitive details at the source.