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build: optimize docker caching strategy to avoid redundant installs

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Michael committed 2026-03-10 16:05:47 +01:00
1 parent 36a74d9e97
commit 8098e024a9
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+17 -27
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Dockerfile
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@@ -1,45 +1,35 @@
# Stage 1: Build Environment
# Stage 1: Build Environment (Optimized for Docker Caching)
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
# Optimize DART VM Memory
ENV DART_VM_OPTIONS="--old_gen_heap_size=16384"
ENV FLUTTER_NO_ANALYTICS=1
ENV PUB_SUMMARY_ONLY=1
# 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
# 1. System Config & Precache (RARELY CHANGES)
RUN flutter config --enable-web && flutter precache --web
# 2. Copy dependency files first for caching
# 2. Dependency Resolution (ONLY UPDATES IF PUBSPEC CHANGES)
COPY pubspec.yaml ./
COPY bin/pubspec.yaml ./bin/
# Note: No .lock files found locally, so we fetch fresh ones here
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
# 3. Source Code Copy (CHANGES OFTEN)
# Everything except what's in .dockerignore (built-in protection)
COPY . .
# 5. Generate code (build_runner)
RUN echo "Step 5: Code Generation..." && \
dart run build_runner build --delete-conflicting-outputs
# 4. Code Generation
RUN dart run build_runner build --delete-conflicting-outputs
# 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
# 5. Compilation (SLOWEST STEP - INEVITABLE)
# This step MUST run if you modified any Dart file.
RUN flutter build web --release --base-href="/" --no-tree-shake-icons --no-pub
# 7. Compile server to native executable
RUN echo "Step 7: Compiling Backend Server..." && \
cd bin && dart compile exe server.dart -o server
# 6. Native Server Compilation
RUN cd bin && dart compile exe server.dart -o server
# ============================================
# Stage 2: Production Runtime
@@ -56,7 +46,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
gosu \
&& rm -rf /var/lib/apt/lists/*
# FFmpeg with NVENC
# FFmpeg with NVENC (cached unless this RUN changes)
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/ \