AAnsibleRed Hat (Ansible community) · Infrastructure & provisioningAgentless configuration management and orchestration tool that runs YAML playbooks over SSH, with collections for clouds, network gear and applicationsGPL-3.0-or-laterOpen sourceFreeLocalSelf-hostedNov 2, 2026
OOpenTofuLinux Foundation (OpenTofu project) · Infrastructure & provisioningCommunity fork of Terraform under the Linux Foundation, keeping the HCL language, provider ecosystem and state model under the MPL-2.0 licenseMPL-2.0Open sourceFreeLocalNov 2, 2026
SWSlurm Workload ManagerSchedMD LLC · Distributed & parallel computingOpen-source cluster resource manager and job scheduler for Linux clusters, allocating nodes, launching jobs and managing queues on many HPC systemsGPL-2.0-or-laterOpen sourceFreeSelf-hostedNov 2, 2026