Add fedora-silverblue container

Author: sharpenedblade

.github/workflows/fedora-silverblue.yml

@@ -0,0 +1,15 @@
+name: Build image 'fedora-silverblue'
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'fedora-silverblue/*'
+jobs:
+  build-image:
+    uses: ./.github/workflows/build-image.yml
+    with:
+      image_name: "fedora-silverblue"
+      tags: unstable
+      publish: ${{ github.ref == 'refs/heads/main' }}
+      branch: main

.github/workflows/nightly-update.yml

@@ -18,3 +18,10 @@ jobs:
       image_name: "fedora-ci"
       tags: unstable
       branch: main
+
+  fedora-silverblue-unstable:
+    uses: ./.github/workflows/build-image.yml
+    with:
+      image_name: "fedora-silverblue"
+      tags: unstable
+      branch: main

fedora-silverblue/Containerfile

@@ -0,0 +1 @@
+FROM quay.io/fedora/fedora-silverblue:41