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Kiln is Trunk’s new CI product. It runs your GitHub Actions jobs on Trunk-hosted runners, with a fresh isolated VM per job. Point a job at Kiln by changing one thing: its runs-on label. Trunk provisions a clean VM, runs the job, and tears the VM down when the job finishes. Your workflows stay on GitHub.
  • A clean machine per job. Every job runs in its own fresh VM with no leftover state from earlier runs. See The runs-on label.
  • Pick the size you need. One label sets the CPU count, and you can ask for high memory when a job needs it. See Machine sizes.
  • Shared cache for faster builds. Jobs reuse build results across runs. Turn caching on or off per repository or for the whole organization. See Caching.
  • Organization defaults. Set a default template, region, and size so most jobs only need to specify a size. See Organization defaults.
  • Limits and priority. Cap CI CPU usage and mark priority branches. See Limits and priority.
  • Run-as (Beta). Configure the identity a job runs under. See Run-as.
Kiln also runs Buildkite jobs, with more features on the way — see the Roadmap. To try Kiln, install the Trunk GitHub App and reach out to the Trunk team to enable it for your organization. Then follow the Get started guide to run your first job.