obs: Dockerfile ldflags + smoke-buildinfo target (track 1/8)#5
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…ha (track 1/8) - Dockerfile: ARG GIT_SHA / BUILD_TIME / VERSION (prod stage only — the debug stage shares the same builder layer so it gets the same ldflags for free), passed into `go build -ldflags -X instant.dev/common/buildinfo.X=...`. - Makefile: docker-build now forwards --build-arg from `make` vars. - New `make smoke-buildinfo` target verifies the ldflag path. Companion change in common (PR #2 adds the buildinfo package). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Track 1 of 8 in the observability rollout. Wires the provisioner's Docker build to inject
instant.dev/common/buildinfovars at link time:ARG GIT_SHA / BUILD_TIME / VERSIONon the shared builder stage (so bothprodanddebugfinal targets get the same linked-in metadata), passed intogo build -ldflags -Xso the resulting binary stamps its own commit on every log line and /healthz response.docker-buildnow forwards--build-argfrommakevars.make smoke-buildinfotarget buildscmd/smoke-buildinfowith override values and asserts they appear at runtime — a CI regression gate for the ldflag path.Depends on InstaNode-dev/common#2 (adds the buildinfo package).
Test plan
go build ./...green.go test ./...green (server/interceptor/storage suites pass).make smoke-buildinfoprintssmoke-buildinfo: OK (GitSHA=smoke-sha BuildTime=smoke-time Version=smoke-ver).Co-Authored-By: Claude Opus 4.7 (1M context) noreply@anthropic.com