How Let’s Encrypt Powers Confluent Cloud to Automate Its Certificate Operations

Confluent has become an official sponsor of Let’s Encrypt, which it has relied on since the beginning of its cloud platform for automated, open, and free TLS/SSL certificate issuance. As Confluent Cloud expanded to support varied networking models, including Confluent Cloud Networks and Private DNS Resolution, it replaced a monolithic, region-wide certificate approach with centralized certificate management designed to handle configurable endpoint and Subject Alternative Name requirements. The new system uses certificate schemes to generate domain lists based on cloud, region, and network details, then pre-provisions and pools certificates in a secret store to avoid DNS-challenge latency during resource provisioning and reduce exposure to temporary certificate-provider outages. Built on the ACME-compatible Lego library, the service abstracts DNS provider differences across cloud platforms, automates renewals, monitors certificates approaching expiration, synchronizes renewed certificates to clusters, and retains the option to use a backup ACME-compatible certificate authority. Confluent now obtains tens of thousands of certificates weekly through Let’s Encrypt APIs, enabling secure connectivity while allowing engineering teams to focus on additional networking capabilities.

Use this post, company, and trend context to find content marketing opportunities, perform competitive analysis, or address product feature gaps via the Plushcap MCP server or the Plushcap API.