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harden-runner/docs/limitations.md
Varun Sharma 87e429d3fb Update limitations.md
2025-11-04 22:15:02 -08:00

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Limitations

GitHub-Hosted Runners

  • Only Ubuntu VM is supported. Windows and MacOS GitHub-hosted runners are not supported. There is a discussion about that here.
  • Harden-Runner is not supported when job is run in a container with built-in labels such as ubuntu-latest, as it needs sudo access on the Ubuntu VM to run. The limitation is if the entire job is run in a container. However, such jobs can be monitored when using custom VM images with GitHub-hosted runners. This is also not a limitation for Self-Hosted runners.

Self-Hosted Actions Runner Controller (ARC) Runners

  • Since ARC Harden Runner uses eBPF, only Linux jobs are supported. Windows and MacOS jobs are not supported.

Self-Hosted VM (e.g. on EC2) and Bare-metal Runners

  • Only Linux jobs are supported. Windows and MacOS jobs are not supported.