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AGENTS.md

Repository Overview

This repository contains the Docker tooling and Dockerfiles for OpenResty. It supports multiple Linux distributions (Alpine, Ubuntu, Debian, CentOS, Fedora, etc.) and architectures (amd64, arm64, s390x).

CI/CD Architecture

The project has migrated from Travis CI to GitHub Actions.

Workflow

The primary workflow is defined in .github/workflows/docker-publish.yml.

  • Primary Registry: GitHub Container Registry (GHCR). All images are built and pushed here first.
  • Mirror Registry: Docker Hub (openresty/openresty). This is configured as a mirror. Pushing to Docker Hub is optional and controlled by the ENABLE_DOCKERHUB_MIRROR variable/secret.
  • Fat Images: "Fat" images (containing additional build tools like OPM) are built in a second stage (build-fat job), using the base images newly published to GHCR.

Workflows

  • docker-publish.yml: Handles building, testing (implicit in build), and publishing images. Uses a matrix strategy for different flavors and architectures.

Verification

A test script test-build-actions.sh is provided to verify the build process locally or in CI.

Key Files

  • .github/workflows/docker-publish.yml: Main CI definition.
  • README.md: User-facing documentation.
  • test-build-actions.sh: Build verification script.

Historical Context

  • Previously used Travis CI (.travis.yml - removed).
  • Windows builds are/were handled by AppVeyor (appveyor.yml - still present).