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kpouget merged 2 commits into from
Jul 30, 2026
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Document Tekton timeout configuration #107

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docs: document Tekton timeout configuration
Harshith-umesh Jul 23, 2026
988ab1c
docs: reference Fournos settings fields for timeout config
Harshith-umesh Jul 23, 2026
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21 changes: 21 additions & 0 deletions Fournos_Design_Document.md
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Expand Up @@ -318,6 +318,27 @@ Every Pipeline must carry a `fournos.dev/resolve-image` annotation with the full

Completion detection is handled by the operator's timer polling PipelineRun conditions — no callback task is needed.

### Timeouts

Fournos sets PipelineRun-level timeouts when creating the Tekton PipelineRun (see `fournos/core/tekton.py`):

| Timeout scope | Default | Description |
| ------------- | ------- | ----------- |
| `pipeline` | 25h | Overall PipelineRun deadline |
| `tasks` | 24h | Maximum wall-clock time for all non-finally tasks |
| `finally` | 1h | Maximum wall-clock time for finally tasks (cleanup, artifact export) |

**Cluster-wide Tekton default**: Tekton also applies a cluster-wide `default-timeout-minutes` from the `config-defaults` ConfigMap in the `openshift-pipelines` namespace. This default applies to **individual TaskRuns** that do not have an explicit timeout. If this value is lower than the PipelineRun `tasks` timeout, TaskRuns will be killed early even though the PipelineRun allows more time.

To prevent this, set the cluster-wide default higher than the PipelineRun task timeout:

```bash
oc patch configmap config-defaults -n openshift-pipelines \
-p '{"data":{"default-timeout-minutes":"5940"}}' # 99 hours
```

This ensures individual TaskRuns never hit the cluster default before the PipelineRun-level timeout.
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## 9. Kueue configuration

[config/kueue-cluster-config.yaml](config/kueue-cluster-config.yaml):
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