A container identity bootstrapping tool

Cloudflare has open-sourced PAL, a tool that securely distributes secrets to Dockerized production applications. The company developed the tool to address the challenge of managing and deploying secrets in containerized environments. PAL is designed to work with existing code signing infrastructure and supports two encryption methods: PGP and Red October. It enables users to control which containers can decrypt a secret by leveraging labels that define which secrets a container can access. The tool aims to provide an identity for services running in containers, allowing them to safely receive secrets only in production environments.