feat: add GitHub Actions workflow for building and uploading modified…

… Rocky Linux ISO

.github/workflows/build.yml

@@ -0,0 +1,54 @@
+name: Build and Upload ISO
+
+on:
+  push:
+    tags:
+      - 'rocky-*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Download Rocky Linux ISO
+      run: |
+        ROCKY_VERSION=${GITHUB_REF#refs/tags/rocky-}
+        wget -O rocky.iso https://download.rockylinux.org/pub/rocky/${ROCKY_VERSION}/isos/x86_64/Rocky-${ROCKY_VERSION}-x86_64-minimal.iso
+
+    - name: Build container
+      run: |
+        buildah build -t ns8-boxbuilder .
+
+    - name: Create modified ISO
+      run: |
+        podman run --rm -it --privileged -v $(pwd):/root localhost/ns8-boxbuilder mkksiso --cmdline "inst.ks=https://raw.githubusercontent.com/NethServer/ns8-rocky-iso/refs/heads/main/ks.cfg" rocky.iso ns8.iso
+
+    # - name: Upload ISO artifact
+    #   uses: actions/upload-artifact@v4
+    #   with:
+    #     name: ns8-iso
+    #     path: ns8.iso
+
+    - name: Create GitHub Release
+      id: create_release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        tag_name: ${{ github.ref }}
+        release_name: Rocky ${{ env.ROCKY_VERSION }}
+        draft: false
+        prerelease: false
+
+    - name: Upload ISO to Release
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: ns8.iso
+        asset_name: ns8.iso
+        asset_content_type: application/octet-stream