Fedor KorotkovandNikolay Edigaryev 415ed3388d Optimistically check if we need to do anything on a pull (#531)
* Optimistically check if we need to do anything on a pull

Right now on a pull we always acquire a lock for a registry host. This is problematic because, for example, host can be pulling `ghcr.io/cirruslabs/macos-ventura-xcode:15-beta-2` image when a new request will come to pull `ghcr.io/cirruslabs/macos-ventura-xcode:latest` if needed.

In this situation, even though `ghcr.io/cirruslabs/macos-ventura-xcode:latest` is already cached and linked, `tart pull` will wait for a lock.

This change optimistically check if there is something to do at all before acquiring a lock.

* Fix linter errors

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Co-authored-by: Nikolay Edigaryev <edigaryev@gmail.com>
2023-06-29 10:51:41 -04:00
2023-04-06 10:36:07 -04:00
2022-11-17 22:57:12 -05:00
2023-06-27 15:17:50 +00:00
2023-03-31 10:58:14 -04:00
2023-05-07 17:55:55 +00:00

Tart is a virtualization toolset to build, run and manage macOS and Linux virtual machines (VMs) on Apple Silicon. Built by CI engineers for your automation needs. Here are some highlights of Tart:

  • Tart uses Apple's own Virtualization.Framework for near-native performance.
  • Push/Pull virtual machines from any OCI-compatible container registry.
  • Use Tart Packer Plugin to automate VM creation.
  • Built-in CI integration.

Tart is already adopted by several automation services:

Many more companies are using Tart in their internal setups. Here are a few of them:

Note: If your company or project is using Tart please consider adding yourself to the list above.

Usage

Try running a Tart VM on your Apple Silicon device running macOS 12.0 (Monterey) or later (will download a 25 GB image):

brew install cirruslabs/cli/tart
tart clone ghcr.io/cirruslabs/macos-ventura-base:latest ventura-base
tart run ventura-base

Please check the official documentation for more information and/or feel free to use discussions for remaining questions.

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macOS and Linux VMs on Apple Silicon to use in CI and other automations
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