fix: only enable rosetta by default when installed by manojmahapatra · Pull Request #1188

fix: only enable rosetta by default when installed by manojmahapatra · Pull Request #1188 · apple/container

Type of Change

Bug fix
New feature
Breaking change
Documentation update

Motivation and Context

Addressing #1136

On fresh installs, build.rosetta defaults to true, which makes the builder VM request rosetta even when it isn’t installed. That looks like hits a potential Virtualization.framework install‑prompt bug and fails the build unexpectedly. This change keeps the existing auto install behavior for explicit opt‑in while preventing the default path from enabling Rosetta unless it’s already installed.

Testing

Tested locally
Added/updated tests
Added/updated docs