Kubernetes - Kubernetes is an open source orchestration system for Docker containers
DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more
Docker Swarm - Native clustering for Docker. Turn a pool of Docker hosts into a single, virtual host.
PDFCrowd - Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.
Rancher - Open Source Platform for Running a Private Container Service
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request