Added workflow for automatic iso builds

.gitea/workflows/release.yml

@@ -0,0 +1,47 @@
+name: Release ISOs
+
+on:
+  workflow_run:
+    workflows: ["CI"]
+    types:
+      - completed
+    branches: ["main"]
+
+jobs:
+  build-isos:
+    runs-on: nix
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    env:
+      NIXPKGS_ALLOW_UNFREE: "1"
+    steps:
+      - name: Checkout
+        run: git clone https://git.cyperpunk.de/DerGrumpf/cyper-nix.git .
+
+      - name: Build ISOs
+        run: |
+          nix build .#packages.x86_64-linux.cyper-desktop-iso --out-link result-desktop
+          nix build .#packages.x86_64-linux.cyper-controller-iso --out-link result-controller
+          nix build .#packages.x86_64-linux.cyper-proxy-iso --out-link result-proxy
+          nix build .#packages.x86_64-linux.cyper-node-1-iso --out-link result-node-1
+          nix build .#packages.x86_64-linux.cyper-node-2-iso --out-link result-node-2
+
+      - name: Create release and upload ISOs
+        run: |
+          TAG="iso-$(date +%Y%m%d-%H%M%S)"
+          COMMIT=$(git -C . rev-parse --short HEAD)
+
+          RELEASE=$(curl -s -X POST \
+            -H "Authorization: token ${{ secrets.CI_TOKEN }}" \
+            -H "Content-Type: application/json" \
+            -d "{\"tag_name\":\"${TAG}\",\"name\":\"ISOs ${TAG}\",\"body\":\"Automated ISO build from commit ${COMMIT}\"}" \
+            "https://git.cyperpunk.de/api/v1/repos/DerGrumpf/cyper-nix/releases")
+
+          RELEASE_ID=$(echo $RELEASE | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
+
+          for result in result-desktop result-controller result-proxy result-node-1 result-node-2; do
+            iso=$(find $result -name "*.iso" | head -1)
+            curl -s -X POST \
+              -H "Authorization: token ${{ secrets.CI_TOKEN }}" \
+              -F "attachment=@${iso};filename=${result}.iso" \
+              "https://git.cyperpunk.de/api/v1/repos/DerGrumpf/cyper-nix/releases/${RELEASE_ID}/assets"
+          done