fix: set HOME in sbom Nix build so syft can create its cache dir#302
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In the Nix sandbox HOME points to a nonexistent /homeless-shelter, so syft fails to create $HOME/.cache/syft (permission denied) and exits without producing the sbom.cdx.json output, breaking the "Generate SBOM (CycloneDX)" CI job. Signed-off-by: Mathieu Grzybek <mathieu@stackhpc.com>
Banh-Canh
approved these changes
Jul 13, 2026
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Summary
$HOMEpoints to a nonexistent/homeless-shelter, sosyftcan't create$HOME/.cache/syft(permission denied) and exits without producingsbom.cdx.json, which Nix then reports asbuilder ... failed to produce output path for output 'out'.HOME=$TMPDIR(writable inside the sandbox) before invokingsyftin thesbomderivation innix/default.nix.Failing run: https://github.com/azimuth-cloud/cluster-api-janitor-openstack/actions/runs/29234807134/job/86766907789
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