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docs: document the cert-manager.io/secret-template ingress annotation #2160

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docs: document the cert-manager.io/secret-template ingress annotation
yugstar Jun 16, 2026
ba80380
docs: use dictionary-safe example annotation (fix cspell)
yugstar Jun 17, 2026
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6 changes: 6 additions & 0 deletions content/docs/usage/ingress.md
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Expand Up @@ -187,6 +187,12 @@ trigger `Certificate` resources to be automatically created:
configure `spec.privateKey.rotationPolicy` field to set the rotation policy of the private key for a Certificate.
Valid values are `Never` and `Always`. If unset a rotation policy `Always` will be used.

- `cert-manager.io/secret-template`: (optional) this annotation allows you to
set the `spec.secretTemplate` field of the generated Certificate.
The value is a JSON representation of `secretTemplate` and must not contain any unknown fields.
`secretTemplate` accepts `annotations` and `labels` maps, which are copied onto the `Secret` that stores the certificate.
For example: `cert-manager.io/secret-template: '{"labels": {"team": "platform"}, "annotations": {"example.com/owner": "platform"}}'`.

## Copying annotations to the Certificate

> ℹ️ This feature was added in cert-manager `v1.18.0`.
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