[selamanse]

Summary

• Allow BUILD_ENSURE_FREE_DISK_SPACE to set the fallback for the build disk-growth flag.
• Enable the flag in the Embed Compose orchestrator, where LaunchDarkly is not configured.

This lets Embed builds grow their root filesystem after build steps so larger code tasks have enough space.

Validation

• CI will run on the PR.

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[selamanse]

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[ThaRae]

A data point for this one, from a self-hosted Embed (Compose) node. I ran an orchestrator built from ae948bd8759 (the commit behind the current Embed pin) with the same flags.go line. A template built with min_free_disk_mb=20480 gets an 813 MB rootfs without it, and a 22 GB rootfs with 21 GB free with it and BUILD_ENSURE_FREE_DISK_SPACE=true.

The Kubernetes shape needs the same setting in embed/kubernetes/statefulset.yaml. The sibling knobs (CREATE_MEMORY_REFUSAL, PAUSE_ADMISSION_DISK_HEADROOM_MIB) also come with an embed/tests/*.bats check for both shapes. I have that version on a branch, with docs, if it helps: ThaRae@67e65d1 (branch embed-build-ensure-free-disk-space-env)