build: add verbosity and version tag to diagnose hang

Dockerfile

@@ -1,45 +1,51 @@
-# Stage 1: Build Environment (Combined for stability and resource management)
+# Stage 1: Build Environment
 FROM ghcr.io/cirruslabs/flutter:stable AS builder
 
 USER root
 WORKDIR /app
 
+# Version tag to identify the build in logs
+RUN echo "XTREMFLOW_BUILD_VERSION: 2.0_STABLE_TIMEOUTS"
+
 # Optimize DART VM Memory for build
 ENV DART_VM_OPTIONS="--old_gen_heap_size=16384"
 ENV FLUTTER_NO_ANALYTICS=1
 ENV PUB_SUMMARY_ONLY=1
 
-# 1. Pre-download artifacts (Crucial for Docker stability)
-RUN flutter config --enable-web && flutter precache --web
+# 1. Pre-download artifacts (Force download before build starts)
+RUN echo "Step 1: Flutter Config and Precache..." && \
+    flutter config --enable-web && \
+    flutter precache --web --verbose
 
-# 2. Copy dependency files first for better caching
-# Root (Flutter Web)
+# 2. Copy dependency files first for caching
 COPY pubspec.yaml ./
-# Server (Dart shelf)
 COPY bin/pubspec.yaml ./bin/
 
-# 3. Get dependencies sequentially to avoid network/CPU contention
-RUN flutter pub get && cd bin && dart pub get
+# 3. Get dependencies (Verbose to see progress)
+RUN echo "Step 3: Fetching dependencies..." && \
+    flutter pub get --verbose && \
+    cd bin && dart pub get --verbose
 
 # 4. Copy source code
 COPY . .
 
 # 5. Generate code (build_runner)
-RUN dart run build_runner build --delete-conflicting-outputs
+RUN echo "Step 5: Code Generation..." && \
+    dart run build_runner build --delete-conflicting-outputs
 
-# 6. Build web application (VERBOSE to see progress/blocks)
-RUN flutter build web --release --base-href="/" --no-tree-shake-icons --verbose
+# 6. Build web application (VERBOSE + NO-PUB to prevent network access)
+RUN echo "Step 6: Building Web Application..." && \
+    flutter build web --release --base-href="/" --no-tree-shake-icons --no-pub --verbose
 
 # 7. Compile server to native executable
-WORKDIR /app/bin
-RUN dart compile exe server.dart -o server
+RUN echo "Step 7: Compiling Backend Server..." && \
+    cd bin && dart compile exe server.dart -o server
 
 # ============================================
-# Stage 2: Production Runtime (with NVENC support)
+# Stage 2: Production Runtime
 # ============================================
 FROM debian:stable-slim
 
-# Install runtime dependencies, tools for fetching FFmpeg, and gosu for privilege dropping
 RUN apt-get update && apt-get install -y --no-install-recommends \
     ca-certificates \
     sqlite3 \
@@ -50,8 +56,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     gosu \
     && rm -rf /var/lib/apt/lists/*
 
-# Install FFmpeg with NVIDIA NVENC support from BtbN static builds
-# Falls back gracefully to CPU if GPU not available
+# FFmpeg with NVENC
 RUN wget -q https://github.com/BtbN/FFmpeg-Builds/releases/download/latest/ffmpeg-master-latest-linux64-gpl.tar.xz \
     && tar xf ffmpeg-master-latest-linux64-gpl.tar.xz \
     && mv ffmpeg-master-latest-linux64-gpl/bin/ffmpeg /usr/local/bin/ \
@@ -59,33 +64,21 @@ RUN wget -q https://github.com/BtbN/FFmpeg-Builds/releases/download/latest/ffmpe
     && rm -rf ffmpeg-master-latest-linux64-gpl* \
     && chmod +x /usr/local/bin/ffmpeg /usr/local/bin/ffprobe
 
-# Create non-root user for security
 RUN groupadd -r xtremuser && useradd -r -g xtremuser -G audio,video xtremuser
-
 WORKDIR /app
 
-# Create necessary data directories with correct permissions
 RUN mkdir -p /app/data /app/web /app/recordings /tmp/xtremflow_streams \
     && chown -R xtremuser:xtremuser /app /tmp/xtremflow_streams
 
-# Copy built artifacts from builder stage
 COPY --from=builder /app/build/web /app/web
 COPY --from=builder /app/bin/server /app/server
-
-# Copy entrypoint script and set permissions
 COPY entrypoint.sh /app/entrypoint.sh
 RUN chmod +x /app/server /app/entrypoint.sh
 
-# NOTE: We stay as root to allow entrypoint.sh to fix volume permissions
-# The entrypoint script will drop privileges to xtremuser after fixing permissions
-
-# Expose port
 EXPOSE 8089
 
-# Healthcheck
 HEALTHCHECK --interval=30s --timeout=3s \
     CMD curl -f http://localhost:8089/index.html || exit 1
 
-# Use entrypoint to fix permissions then start server as xtremuser
 ENTRYPOINT ["/app/entrypoint.sh"]
 CMD ["/app/server", "--port", "8089", "--path", "/app/web"]