Static Web Apps (swa) deployment fails on K8s worker pool but succeeds locally

[Rose-Northey]

Root cause

This is a known issue listed in the Azure Static Web Apps CLI: Azure/static-web-apps-cli#514 (also see the troubleshooting doc).

• kubernetes workers use a network drive, not a local disk
• swa deploy writes its scratch/deploy files relative to the current working directory
• swa deploy treats all working directories like local disks even when they aren't

Errors / stacktrace

generic swa error may be seen unknown error has occured

Workaround

stage the build output on local disk (e.g. /tmp) before invoking swa, so it never touches the network-backed work directory:

STAGE=$(mktemp -d /tmp/swa-XXXXXX)
cp -a package/dist "$STAGE/dist"
cd "$STAGE" && swa deploy ./dist --deployment-token "$TOKEN" --env Production