feat: Kafka Public CA for SASL #1191
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harshini-rangaswamy
November 26, 2025 08:57
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Pull request overview
This PR documents the new public CA feature for Kafka SASL authentication, enabling clients to use Let's Encrypt certificates instead of the Aiven project CA when connecting via SASL.
- Added comprehensive documentation for enabling public CA with SASL authentication via console, CLI, API, and Terraform
- Documented new configuration parameters
letsencrypt_saslandletsencrypt_sasl_privatelink - Updated TLS/SSL certificate requirements to explain both SASL and client certificate authentication methods
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.
| File | Description |
|---|---|
| docs/products/kafka/howto/kafka-sasl-auth.md | Added new section "Enable public CA for SASL authentication" with instructions for all configuration methods, plus updated introductory text to clarify SASL over SSL |
| static/includes/config-kafka.md | Added documentation for letsencrypt_sasl, updated letsencrypt_sasl_privatelink description for consistency, and added sasl_oauthbearer_allowed_urls parameter |
| docs/platform/concepts/tls-ssl-certificates.md | Restructured Kafka certificate requirements section to distinguish between client certificate and SASL over SSL authentication methods |
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| <div className="param"><p className="name"><Link id="letsencrypt_sasl"/><Link to="#letsencrypt_sasl"><strong>letsencrypt_sasl</strong></Link></p><p><code className="type">boolean,null</code></p></div> | ||
| <p className="title">Use Let's Encrypt CA for Kafka SASL</p> | ||
| <div className="description"><p>Use a Let's Encrypt certificate authority (CA) for Kafka SASL authentication. (Default: False)</p></div> | ||
| <table className="service-param-children"> | ||
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| </tbody> | ||
| </table> | ||
| </td> | ||
| </tr> |
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@jclaryssse these parameters are auto-generated. A scheduled job updates them twice a month, and I manually triggered it to fetch the latest service definitions.
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@jclaryssse thank you for this content ⭐! I made some minor changes to language, voice and tone to align with our style guide. Feel free to merge when this feature is ready.
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Describe your changes
Document Kafka public CA for SASL authentication, change preview:
FLEET-6161
Checklist
/docs/.