Cluster Management: Heterogeneous, Lightweight, Safe. Pick Three
summary
OCluster runs cluster management across thousands of cores for the OCaml CI ecosystem, composing snapshotting filesystems (Btrfs/ZFS), container runtimes (runC/docker), and virtualization (Hyper‑V, VMs) to provide portable workers on Linux, Windows, macOS, FreeBSD and architectures including amd64, arm, ppc and riscv. Pipelines are written in OCurrent, executed by OBuilder, and feed opam workflows that build ~4,000 packages (24,000 versions), 400 GitHub projects and Docker images for 13 OCaml releases; scheduling uses capnp RPC, deployments via Ansible, and metrics via Prometheus/Grafana.
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