GitHub Actions routing
Run selected GitHub Actions mobile jobs on Bitrise-managed virtual machines while retaining GitHub Actions for workflow orchestration. The documented routing method uses a machine pool and a `runs-on` label.
Bitrise Build Hub
Bitrise Build Hub provides managed Apple silicon macOS and Linux runners for GitHub Actions mobile workflows. It helps iOS and Android teams keep GitHub Actions while routing builds to pre-warmed, mobile-ready infrastructure managed by Bitrise.
Managed mobile runners for GitHub Actions
Bitrise Build Hub is managed build infrastructure for teams that use GitHub Actions for CI, with a focus on mobile application builds. It lets teams keep their existing GitHub Actions workflows while routing selected iOS, Android, or cross-platform jobs to Bitrise-hosted macOS and Linux virtual machines.
The service is designed to reduce runner wait time and infrastructure maintenance through pre-warmed machines, mobile-ready toolchains, configurable Linux capacity, and Bitrise-managed updates. Its documented setup connects a machine pool to a GitHub Enterprise or Organization and changes the runner label for the mobile jobs that should use Build Hub.
Build infrastructure and workflow features
Apple silicon macOS machines
Use M4 Pro virtual machines for macOS builds, including an X Large configuration with 14 vCPU and 54 GB RAM. M2 Pro configurations are also available through the Bitrise Apple silicon platform.
Granular Linux sizing
Choose Linux capacity from standard 4, 6, 8, 14, 16, 24, 32, and 48 vCPU options, with custom even-vCPU configurations supported up to 96 vCPU.
Mobile toolchains and stack updates
Use mobile-oriented environments with iOS and Android tools preinstalled. Bitrise states that beta and stable Xcode stack versions are provided within 24 hours of release, and the platform includes integrations such as fastlane, CocoaPods, and Danger.
Pre-warmed execution and managed operations
Run builds on pre-warmed virtual machines and use dynamic resource allocation intended to avoid queueing during peak periods. Bitrise guarantees 99.9% uptime and describes rolling updates and blue-green deployments for platform upgrades.
Optional co-located build caching
Add co-located Build Cache for Xcode, Gradle, or Bazel. The source says the cache can reduce build times by up to 90% and does not incur network egress costs when cache and compute are in the same data center.
Practical use cases
Accelerating existing GitHub Actions mobile pipelines
Keep workflow definitions, checks, and orchestration in GitHub Actions while routing only iOS or Android jobs to Bitrise-managed runners. This suits teams that want faster mobile execution without moving their entire CI system.
Building and testing Apple-platform applications
Use M4 Pro virtual machines and Bitrise’s ready-to-use iOS toolchains for Xcode compilation, testing, signing, and deployment workflows. The Apple silicon environment supports iPhone and iPad application work and can also be used for Android development.
Scaling Android CI capacity
Select a Linux size that matches Android build requirements, from smaller standard configurations through larger or custom vCPU setups. Preinstalled Android tooling reduces the amount of runner preparation required for Gradle-based jobs.
Evaluating runner infrastructure before wider rollout
Run a side-by-side proof of concept that compares existing GitHub-hosted execution with Build Hub for selected mobile jobs. Bitrise describes this as a way to measure build-time and wait-time changes before broader adoption.
Pros and Cons
Pros
- Keeps GitHub Actions as the CI orchestrator, so teams can route mobile jobs without replacing their existing workflow platform.
- Offers managed Apple silicon and Linux infrastructure with mobile toolchains and pre-warmed virtual machines.
- Provides multiple Linux sizes and custom even-vCPU configurations up to 96 vCPU for more precise capacity selection.
- Bitrise states a 99.9% uptime guarantee, Xcode stack updates within 24 hours, and rolling update practices intended to avoid service interruptions.
Cons
- The documented integration is centered on GitHub Actions; support for other CI platforms is described as planned rather than currently available.
- Build Hub-specific pricing and capacity terms are not detailed in the supplied source, so teams need to confirm the appropriate Bitrise plan or sales option.
- Some capabilities, including co-located Build Cache and Release Management, are presented as separate Bitrise products or add-ons rather than core Build Hub functionality.
FAQ
Do teams need to migrate away from GitHub Actions?
No. Build Hub keeps GitHub Actions as the CI orchestrator. Teams can route selected mobile jobs to Bitrise runners by defining a machine pool for a GitHub Enterprise or Organization and changing the workflow’s runner label to `runs-on: bitrise-m4-pro`.
How is Build Hub set up?
The documented setup is to connect a Build Hub machine pool to a GitHub Enterprise or Organization, update the relevant YAML runner label, and run the workflow. Bitrise says mobile jobs are routed to pre-warmed virtual machines; most teams complete a proof of concept in 7–14 days.
Does Build Hub support Linux builds?
Yes. Build Hub provides Linux machines from 4 to 48 vCPU as standard, with custom even-vCPU configurations available from 2 to 96 vCPU. The source also describes pre-warmed Linux virtual machines with Android CI tools installed.
Can Build Hub be used with an existing caching solution?
Yes. Teams can continue using their own caching solution. Bitrise also offers a co-located Build Cache for Xcode, Gradle, and Bazel; the source says this can reduce build times by up to 90% and avoids network egress costs because cache and compute run in the same data center.
Is Build Hub available for CI providers other than GitHub Actions?
The source documents GitHub Actions integration. It says support for other CI platforms is planned for the second half of 2026, so current non-GitHub Actions availability should be confirmed with Bitrise.
Quick Facts
- Category
- CI/CD build infrastructure
- Primary platform
- GitHub Actions
- Supported build environments
- Managed macOS Apple silicon and Linux virtual machines
- Largest documented macOS configuration
- M4 Pro X Large: 14 vCPU, 54 GB RAM
- Linux capacity
- Standard options from 4 to 48 vCPU; custom even-vCPU setups from 2 to 96 vCPU
- Availability and trial
- 99.9% uptime guarantee stated; free trial offered by Bitrise
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