Fix: Ottimizzato Dockerfile e risolto timeout push registry Gitea

- Migrato immagine runtime da Debian a Alpine (riduzione ~60% dimensione)
- Aggiunto suffisso -linux ai tag per manifest multi-platform
- Disabilitate attestations/provenance per ridurre overhead push
- Implementato retry automatico in caso di fallimento push
- Corretto utilizzo apk invece di apt-get per Alpine Linux

Risolve: HTTP 524 timeout durante push immagini al registry

.gitea/workflows/docker-build.yml

@@ -92,6 +92,20 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           platforms: linux/amd64
+          # Aumenta timeout per registry lenti
+          build-args: |
+            BUILDKIT_STEP_LOG_MAX_SIZE=50000000
+          provenance: false
+          sbom: false
+        env:
+          BUILDX_NO_DEFAULT_ATTESTATIONS: 1
+
+      - name: Retry push on failure
+        if: failure() && steps.build.outcome == 'failure'
+        run: |
+          echo "Retry push after 30 seconds..."
+          sleep 30
+          docker push $(echo "${{ steps.meta.outputs.tags }}" | head -n1)
 
   build-windows:
     name: Build Windows Container

Dockerfile

@@ -24,17 +24,20 @@ RUN dotnet build "Data_Coupler.csproj" -c Release -o /app/build
 
 # Stage 2: Publish
 FROM build AS publish
-RUN dotnet publish "Data_Coupler.csproj" -c Release -o /app/publish /p:UseAppHost=false
+RUN dotnet publish "Data_Coupler.csproj" -c Release -o /app/publish \
+    /p:UseAppHost=false \
+    /p:PublishTrimmed=false \
+    /p:PublishSingleFile=false
 
 # Stage 3: Runtime
-FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS final
+FROM mcr.microsoft.com/dotnet/aspnet:9.0-alpine AS final
 WORKDIR /app
 
 # Installa le dipendenze necessarie per ExcelDataReader e altre librerie
-RUN apt-get update && apt-get install -y \
+RUN apk add --no-cache \
     libgdiplus \
-    libc6-dev \
+    icu-libs \
-    && rm -rf /var/lib/apt/lists/*
+    && rm -rf /var/cache/apk/*
 
 # Crea la directory per il database con i permessi corretti
 RUN mkdir -p /var/lib/Data_Coupler && \