Teller
Teller is a developer tool and command-line interface (CLI) designed for securely managing secrets, API keys, and other sensitive configuration data across development environments. It provides a unified way to handle secrets by integrating with various secret managers and cloud providers, allowing developers to store, access, and rotate secrets without hardcoding them into codebases. The tool emphasizes security, ease of use, and automation to prevent accidental exposure of sensitive information.
Developers should learn and use Teller when working on projects that require secure management of secrets, such as API keys, database passwords, or tokens, especially in cloud-native or microservices architectures. It is particularly useful in CI/CD pipelines, team collaborations, and multi-environment setups (e.g., development, staging, production) to ensure consistent and safe secret handling, reducing the risk of security breaches. Use cases include automating deployments, integrating with tools like Kubernetes or Docker, and complying with security best practices in DevOps workflows.