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deploying-go-sdk-bundles

Skill

Builds, packs, and deploys compiled Airflow Go SDK bundles so the ExecutableCoordinator can run them. Use when the user wants to compile a Go task bundle, asks about `go build`, `go tool airflow-go-pack`, the AFBNDL01 self-contained executable bundle, packing or inspecting a bundle, placing it under

412DevOps

Install

git clone https://github.com/astronomer/agents.git ~/.claude/skills/deploying-go-sdk-bundles

What is deploying-go-sdk-bundles?

Builds, packs, and deploys compiled Airflow Go SDK bundles so the ExecutableCoordinator can run them. Use when the user wants to compile a Go task bundle, asks about `go build`, `go tool airflow-go-pack`, the AFBNDL01 self-contained executable bundle, packing or inspecting a bundle, placing it under `executables_root`, cross-compiling a bundle for workers, `go-sdk` module versioning/tags/pseudo-versions, or getting the bundle onto an Airflow worker (Docker, Kubernetes, or Astro). For the task code see authoring-go-sdk-tasks; for the shared coordinator settings see configuring-airflow-language-sdks.

What this can do

Capabilities declared in this component's own frontmatter — not inferred.

Inherit all session tools

Declares no tool restrictions — inherits every session tool

~151 tokens of context used while enabled, before you invoke anything

Trust

87/100 · Excellent

2 factors scored below maximum

Documentation

README · ~4 min read

Deploying Go SDK Bundles

A Go SDK deployment has one artifact: a bundle, a single self-contained native executable that also carries its embedded source and a manifest (the AFBNDL01 format, "the executable is the bundle"). You build and pack it with go, place it where Airflow's ExecutableCoordinator scans, and the Python task runner forks it once per task instance. This skill is platform-neutral: it shows the build, the coordinator wiring, then how to get the bundle onto a worker.

Experimental. The Go SDK is under active development and not production-ready. Everything resolves against the single module github.com/apache/airflow/go-sdk (Go 1.24+).

Order of operations: write the tasks (authoring-go-sdk-tasks) -> build and pack the bundle (this skill) -> place it under executables_root and configure the coordinator -> deploy the matching Python stub DAG.

Build and pack the bundle

The coordinator only recognizes a packed bundle: it scans for the AFBNDL01 trailer and silently skips any file that lacks it, so a plain go build binary is not deployable on its own. Use the packer, shipped as a Go 1.24 tool directive in go.mod (no global install, version pinned per project):

go tool airflow-go-pack ./example/bundle                              # build + pack in one step
go tool airflow-go-pack --goos linux --goarch amd64 ./example/bundle -- -trimpath  # cross-compile; flags after -- pass to `go build`

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