Flux's postBuild.substituteFrom runs envsubst over the WHOLE manifest, including
the VM cloud-init userData. It was substituting every shell `${...}` in the UOS
install script (${UOS_URL}, the API-resolver ${...}) to empty — which is why the
first UOS install silently did nothing — and ${PIPESTATUS[0]} then broke the
build entirely ("missing closing brace"), blocking apps-vms reconcile.
VM manifests use no cluster-vars, so substitution is unneeded. Removed it; the
cloud-init shell now reaches the guest intact. (A future VM needing a cluster-var
must escape its shell `${...}` as `$${...}`.)
Co-Authored-By: Claude Opus 4.8 <[email protected]>
jakman85andClaude Opus 4.8
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