jason810496 opened a new pull request, #67156:
URL: https://github.com/apache/airflow/pull/67156
depends-on: refactor/go-sdk/dag-authoring-api (#67155 — must merge first;
transitively on coordinator-runtime #67154)
## Why
ADR 0004 settled on a self-contained executable as the Go bundle
artefact: one binary that carries its own source and manifest in a
footer, runs under both the go-plugin and the coordinator protocol,
and exposes its bundle spec for introspection. This PR ships the
tool that produces that artefact (`airflow-go-pack`) and the bundle
server hooks it needs.
## What
- `cmd/airflow-go-pack/pack.go` drives the build: it invokes the
user's Go toolchain to compile their bundle main, then appends the
source tree and manifest to the resulting binary via the new
`internal/bundlefooter` package.
- `cmd/airflow-go-pack/inspect.go` reads the footer back out — print
the embedded manifest, optionally dump the source — so operators can
verify what a binary contains without running it.
- `cmd/airflow-go-pack/main.go` wires the subcommands and
`--dump-bundle-spec` (the introspection contract from ADR 0001
Option D); arg parsing treats everything after `--` as build flags
to pass through to `go build`.
- `bundle/bundlev1/bundlev1server/server.go` learns to detect a
self-contained binary and serve its embedded source/manifest to the
scanner instead of expecting a ZIP container.
- `example/bundle/Justfile` is updated to build via `airflow-go-pack`,
and `example/bundle/main.go` now reads its DAG id from an `-ldflags`
variable so the test fixture can produce multiple bundles from one
source tree.
---
##### Was generative AI tooling used to co-author this PR?
- [x] Yes, with help of Claude Code Opus 4.7 following [the
guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#gen-ai-assisted-contributions)
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