优化 docker

Dockerfile

@@ -1,6 +1,13 @@
 FROM python:3.9-slim
 
-# Install curl
+# Set environment variables
+# PYTHONUNBUFFERED=1 ensures logs are visible in real-time
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    HOME=/home/user \
+    PATH=/home/user/.local/bin:$PATH
+
+# Install curl and clean up
 RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/*
 
 # Set up a new user named "user" with user ID 1000
@@ -9,10 +16,6 @@ RUN useradd -m -u 1000 user
 # Switch to the "user" user
 USER user
 
-# Set home to the user's home directory
-ENV HOME=/home/user \
-	PATH=/home/user/.local/bin:$PATH
-
 # Set the working directory to the user's home directory
 WORKDIR $HOME/app
 
@@ -20,21 +23,22 @@ WORKDIR $HOME/app
 COPY --chown=user requirements.txt $HOME/app/requirements.txt
 
 # Install requirements
-RUN pip install --no-cache-dir --upgrade -r requirements.txt
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir --upgrade -r requirements.txt
 
 # Copy the rest of the application
 COPY --chown=user . $HOME/app
 
 # Create the webfonts directory and download fonts
-# Use -f to fail on error, -L to follow redirects
+# Added --retry and --connect-timeout for robustness to prevent build hangs
 RUN mkdir -p static/webfonts && \
-    curl -fLo static/webfonts/fa-solid-900.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-solid-900.woff2 && \
-    curl -fLo static/webfonts/fa-solid-900.ttf https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-solid-900.ttf && \
-    curl -fLo static/webfonts/fa-regular-400.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-regular-400.woff2 && \
-    curl -fLo static/webfonts/fa-regular-400.ttf https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-regular-400.ttf
+    curl -fLo static/webfonts/fa-solid-900.woff2 --connect-timeout 20 --retry 3 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-solid-900.woff2 && \
+    curl -fLo static/webfonts/fa-solid-900.ttf --connect-timeout 20 --retry 3 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-solid-900.ttf && \
+    curl -fLo static/webfonts/fa-regular-400.woff2 --connect-timeout 20 --retry 3 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-regular-400.woff2 && \
+    curl -fLo static/webfonts/fa-regular-400.ttf --connect-timeout 20 --retry 3 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/webfonts/fa-regular-400.ttf
 
 # Expose port 7860
 EXPOSE 7860
 
-# Command to run the application
-CMD ["gunicorn", "-b", "0.0.0.0:7860", "app:app"]
+# Command to run the application with verbose logging
+CMD ["gunicorn", "-b", "0.0.0.0:7860", "--access-logfile", "-", "--error-logfile", "-", "--log-level", "info", "app:app"]

app.py

@@ -1,8 +1,16 @@
 from flask import Flask, render_template, send_from_directory, jsonify
 import os
+import logging
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
 
 app = Flask(__name__)
 
+# Log startup
+logger.info("Starting Growth Loop Simulator application...")
+
 @app.route('/')
 def index():
     try: