Add job to publish nightly builds

.github/workflows/ci.yml

@@ -1,11 +1,11 @@
 name: GitHub CI
 
 on:
-  pull_request:
-  push:
+  # pull_request:
+  # push:
   workflow_dispatch:
-  schedule:
-    - cron: 0 0 * * 0
+  # schedule:
+  #   - cron: 0 0 * * 0
 
 defaults:
   run:

.github/workflows/nightly.yml

@@ -0,0 +1,62 @@
+name: Docker Build
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: 0 20 * * *
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  set-up-matrix:
+    name: Set up matrix
+    runs-on: ubuntu-latest
+    outputs:
+      variants: ${{ steps.fetch-variants.outputs.variants }}
+      json: ${{ steps.fetch-json.outputs.json }}
+    steps:
+      - uses: actions/checkout@v4
+      - id: fetch-variants
+        run: echo "variants=$(./variants.rb)" >> "$GITHUB_OUTPUT"
+      - id: fetch-json
+        run: echo "json=$(./nightly-versions.rb)" >> "$GITHUB_OUTPUT"
+
+  build:
+    needs: set-up-matrix
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        variant: ${{ fromJson(needs.set-up-matrix.outputs.variants) }}
+    name: ${{ matrix.variant }}
+    steps:
+      - uses: actions/checkout@v4
+      - run: echo '${{ needs.set-up-matrix.outputs.json }}' > versions.json
+      - run: echo date=$(jq -r .master.date versions.json) >> $GITHUB_ENV
+      - run: ./apply-templates.sh
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Github Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ github.token }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        env:
+          tag1: ghcr.io/docker-ruby-nightly/ruby:${{ matrix.variant }}-nightly-${{ env.date }}
+          tag2: ghcr.io/docker-ruby-nightly/ruby:${{ matrix.variant }}-nightly
+        with:
+          context: ./master/${{ matrix.variant }}
+          push: true
+          platforms: linux/amd64,linux/arm64,linux/arm/v7,linux/arm/v6,linux/386,linux/ppc64le,linux/s390x
+          tags: ${{ env.tag1 }},${{ env.tag2 }}

README.md

@@ -1,26 +1,13 @@
-# https://github.com/docker-library/ruby
+![Last successful build](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fapi.github.com%2Frepos%2Fdocker-ruby-nightly%2Fruby%2Factions%2Fworkflows%2Fnightly.yml%2Fruns%3Fstatus%3Dcompleted%26event%3Dschedule&query=%24.workflow_runs%5B0%5D%5B'updated_at'%5D&logo=githubactions&label=Last%20successful%20build) ![Last build status](https://github.com/docker-ruby-nightly/ruby/actions/workflows/nightly.yml/badge.svg)
 
-## Maintained by: [the Docker Community](https://github.com/docker-library/ruby)
+Fork of https://github.com/docker-library/ruby to build daily nightly images. Unfortunatly there will be no official nightly builds [[1]](https://github.com/docker-library/ruby/issues/222) and [circleci-ruby-snapshot-image](https://github.com/rubocop/circleci-ruby-snapshot-image) builds have stopped [[2]](https://github.com/rubocop/circleci-ruby-snapshot-image/issues/21).
 
-This is the Git repo of the [Docker "Official Image"](https://github.com/docker-library/official-images#what-are-official-images) for [`ruby`](https://hub.docker.com/_/ruby/) (not to be confused with any official `ruby` image provided by `ruby` upstream). See [the Docker Hub page](https://hub.docker.com/_/ruby/) for the full readme on how to use this Docker image and for information regarding contributing and issues.
+The available variants will mirror the ones from the official images. The tags are structured in the following way:
+* `alpine3.20-nightly-2024-05-27`
+* `alpine3.20-nightly`
+* `bookworm-nightly-2024-05-27`
+* `bookworm-nightly`
 
-The [full image description on Docker Hub](https://hub.docker.com/_/ruby/) is generated/maintained over in [the docker-library/docs repository](https://github.com/docker-library/docs), specifically in [the `ruby` directory](https://github.com/docker-library/docs/tree/master/ruby).
+Images are build for the following architectures: `linux/amd64`, `linux/arm64`, `linux/arm/v7`, `linux/arm/v6`, `linux/386`, `linux/ppc64le`, and `linux/s390x`.
 
-## See a change merged here that doesn't show up on Docker Hub yet?
-
-For more information about the full official images change lifecycle, see [the "An image's source changed in Git, now what?" FAQ entry](https://github.com/docker-library/faq#an-images-source-changed-in-git-now-what).
-
-For outstanding `ruby` image PRs, check [PRs with the "library/ruby" label on the official-images repository](https://github.com/docker-library/official-images/labels/library%2Fruby). For the current "source of truth" for [`ruby`](https://hub.docker.com/_/ruby/), see [the `library/ruby` file in the official-images repository](https://github.com/docker-library/official-images/blob/master/library/ruby).
-
----
-
--	[![build status badge](https://img.shields.io/github/actions/workflow/status/docker-library/ruby/ci.yml?branch=master&label=GitHub%20CI)](https://github.com/docker-library/ruby/actions?query=workflow%3A%22GitHub+CI%22+branch%3Amaster)
--	[![build status badge](https://img.shields.io/jenkins/s/https/doi-janky.infosiftr.net/job/update.sh/job/ruby.svg?label=Automated%20update.sh)](https://doi-janky.infosiftr.net/job/update.sh/job/ruby/)
-
-| Build | Status | Badges | (per-arch) |
-|:-:|:-:|:-:|:-:|
-| [![amd64 build status badge](https://img.shields.io/jenkins/s/https/doi-janky.infosiftr.net/job/multiarch/job/amd64/job/ruby.svg?label=amd64)](https://doi-janky.infosiftr.net/job/multiarch/job/amd64/job/ruby/) | [![arm32v5 build status badge](https://img.shields.io/jenkins/s/https/doi-janky.infosiftr.net/job/multiarch/job/arm32v5/job/ruby.svg?label=arm32v5)](https://doi-janky.infosiftr.net/job/multiarch/job/arm32v5/job/ruby/) | [![arm32v6 build status badge](https://img.shields.io/jenkins/s/https/doi-janky.infosiftr.net/job/multiarch/job/arm32v6/job/ruby.svg?label=arm32v6)](https://doi-janky.infosiftr.net/job/multiarch/job/arm32v6/job/ruby/) | [![arm32v7 build status badge](https://img.shields.io/jenkins/s/https/doi-janky.infosiftr.net/job/multiarch/job/arm32v7/job/ruby.svg?label=arm32v7)](https://doi-janky.infosiftr.net/job/multiarch/job/arm32v7/job/ruby/) |
-| [![arm64v8 build status badge](https://img.shields.io/jenkins/s/https/doi-janky.infosiftr.net/job/multiarch/job/arm64v8/job/ruby.svg?label=arm64v8)](https://doi-janky.infosiftr.net/job/multiarch/job/arm64v8/job/ruby/) | [![i386 build status badge](https://img.shields.io/jenkins/s/https/doi-janky.infosiftr.net/job/multiarch/job/i386/job/ruby.svg?label=i386)](https://doi-janky.infosiftr.net/job/multiarch/job/i386/job/ruby/) | [![mips64le build status badge](https://img.shields.io/jenkins/s/https/doi-janky.infosiftr.net/job/multiarch/job/mips64le/job/ruby.svg?label=mips64le)](https://doi-janky.infosiftr.net/job/multiarch/job/mips64le/job/ruby/) | [![ppc64le build status badge](https://img.shields.io/jenkins/s/https/doi-janky.infosiftr.net/job/multiarch/job/ppc64le/job/ruby.svg?label=ppc64le)](https://doi-janky.infosiftr.net/job/multiarch/job/ppc64le/job/ruby/) |
-| [![s390x build status badge](https://img.shields.io/jenkins/s/https/doi-janky.infosiftr.net/job/multiarch/job/s390x/job/ruby.svg?label=s390x)](https://doi-janky.infosiftr.net/job/multiarch/job/s390x/job/ruby/) | [![put-shared build status badge](https://img.shields.io/jenkins/s/https/doi-janky.infosiftr.net/job/put-shared/job/light/job/ruby.svg?label=put-shared)](https://doi-janky.infosiftr.net/job/put-shared/job/light/job/ruby/) |
-
-<!-- THIS FILE IS GENERATED BY https://github.com/docker-library/docs/blob/master/generate-repo-stub-readme.sh -->
+The full qualifier looks like `ghcr.io/docker-ruby-nightly/ruby:alpine3.20-nightly-2024-05-27`. List of previous builds: https://github.com/docker-ruby-nightly/ruby/pkgs/container/ruby

nightly-versions.rb

@@ -0,0 +1,23 @@
+#!/usr/bin/env ruby
+
+require "json"
+require "net/http"
+
+current_json = JSON.parse(File.read("versions.json"))
+latest_release = current_json.compact.keys.max_by(&:to_f)
+donor = current_json[latest_release]
+
+uri = URI("https://cache.ruby-lang.org/pub/ruby/snapshot/snapshot-master.json")
+res = Net::HTTP.get_response(uri)
+raise StandardError, "Got status code #{res.code}: #{res.body}" unless res.code == "200"
+
+master = JSON.parse(res.body).first
+master["url"] = master["filename"].transform_values { |file| "https://cache.ruby-lang.org/pub/ruby/snapshot/#{file}" }
+master.delete("filename")
+master.merge!({
+  "version" => "master",
+  "variants" => donor["variants"],
+  "rust" => donor["rust"],
+  "rustup" => donor["rustup"],
+})
+puts JSON.generate({ "master" => master })

variants.rb

@@ -0,0 +1,7 @@
+#!/usr/bin/env ruby
+
+require "json"
+
+json = JSON.parse(File.read("versions.json"))
+latest_release = json.compact.keys.max_by(&:to_f)
+puts json[latest_release]["variants"].to_json