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Daniel Hilst
c05311b362
Closes the reproducibility/supply-chain gap left as a TODO: the Ubuntu goconserver
build resolved all transitive modules live from the network via 'go mod tidy', so the
compiled binary was not reproducible and the graph was unverified.
Commit goconserver/gomod/go.{mod,sum}, generated with the build's own pinned toolchain
(go 1.25.12) at REF=6166fe5, with the etcd backend removed (its coreos/bbolt dep, now
go.etcd.io/bbolt, breaks 'go mod tidy') and kr/pty replaced by creack/pty -- exactly the
steps the build performs. sbuild.pl now overlays the committed pair into the cloned tree
and builds with GOFLAGS=-mod=mod, so modules are downloaded but PINNED + integrity-checked
by go.sum; no 'go mod tidy'. Verified on xcat-master-ub: both entrypoints (goconserver.go,
cmd/congo.go) compile CGO-free against the committed go.sum. gomod/README.md documents
regeneration. Mirrors the EL branch's pinning model (its go.sum is generated with a
different Go, so a fresh Ubuntu-toolchain pair is used rather than copying it).
Signed-off-by: Daniel Hilst <392820+dhilst@users.noreply.github.com>