Workflow for publishing base images (#186)

* Workflow for publishing base images

.github/workflows/ci.yml

@@ -13,8 +13,8 @@ jobs:
 
     strategy:
       matrix:
-        os: ["ubuntu-18.04", "ubuntu-20.04"]
-        ruby: ["1.9", "2.1", "2.2", "2.3", "2.4", "2.6", "2.7", "3.0"]
+        os: ["ubuntu-22.04"]
+        ruby: ["2.7", "3.0", "3.3"]
 
     steps:
       - uses: actions/checkout@v2

.github/workflows/publish.yml

@@ -0,0 +1,51 @@
+name: Publish pkgr images
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - base-images
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        target:
+          - debian:10
+          - debian:11
+          - debian:12
+          - ubuntu:20.04
+          - ubuntu:22.04
+          - ubuntu:24.04
+          - el:7
+          - el:8
+          - el:9
+          - sles:12
+          - sles:15
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: images/Dockerfile.template
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository }}/${{ matrix.target }}-${{ github.sha }}
+          build-args: |
+            PKGR_VERSION=${{ github.sha }}
+            TARGET=${{ matrix.target }}

images/el/8/Dockerfile → images/Dockerfile.template

@@ -1,6 +1,7 @@
-FROM barebuild/el:8
-WORKDIR /app
+ARG TARGET
+FROM barebuild/$TARGET
 ARG PKGR_VERSION
 
+WORKDIR /app
 RUN curl -GLs https://buildcurl.com -d recipe=pkgr -d version="$PKGR_VERSION" -d target="$TARGET" -o - | tar xzf - -C /usr/local
 ENTRYPOINT ["/usr/local/bin/pkgr", "package", ".", "--clean", "--auto", "--compile-cache-dir", "/cache"]