Set up web server for img

render/Dockerfile

@@ -0,0 +1,77 @@
+# Use the official Python image as a base image
+FROM python:3.9
+
+# Install required system dependencies
+RUN apt-get update && apt-get install -y \
+    zlib1g-dev \
+    gconf-service \
+    libasound2 \
+    libatk1.0-0 \
+    libc6 \
+    libcairo2 \
+    libcups2 \
+    libdbus-1-3 \
+    libexpat1 \
+    libfontconfig1 \
+    libgcc1 \
+    libgconf-2-4 \
+    libgdk-pixbuf2.0-0 \
+    libglib2.0-0 \
+    libgtk-3-0 \
+    libnspr4 \
+    libpango-1.0-0 \
+    libpangocairo-1.0-0 \
+    libstdc++6 \
+    libx11-6 \
+    libx11-xcb1 \
+    libxcb1 \
+    libxcomposite1 \
+    libxcursor1 \
+    libxdamage1 \
+    libxext6 \
+    libxfixes3 \
+    libxi6 \
+    libxrandr2 \
+    libxrender1 \
+    libxss1 \
+    libxtst6 \
+    ca-certificates \
+    fonts-liberation \
+    libappindicator1 \
+    libnss3 \
+    lsb-release \
+    xdg-utils \
+    wget \
+    && rm -rf /var/lib/apt/lists/*
+
+# Pyppeteer
+RUN apt-get update && apt-get install -y \
+    apt-transport-https \
+    ca-certificates \
+    curl \
+    gnupg \
+    --no-install-recommends \
+    && curl -sSL https://dl.google.com/linux/linux_signing_key.pub | apt-key add - \
+    && echo "deb [arch=amd64] https://dl.google.com/linux/chrome/deb/ stable main" > /etc/apt/sources.list.d/google-chrome.list \
+    && apt-get update && apt-get install -y \
+    google-chrome-stable \
+    --no-install-recommends
+
+# It won't run from the root user.
+RUN groupadd chrome && useradd -g chrome -s /bin/bash -G audio,video chrome \
+    && mkdir -p /home/chrome && chown -R chrome:chrome /home/chrome
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Copy the current directory contents into the container at /app
+COPY . /app
+
+# Install any needed dependencies specified in requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Expose the port that Gunicorn will listen on
+EXPOSE 8000
+
+# Define the command to run the application using Gunicorn
+CMD ["gunicorn", "app:app", "-b", "0.0.0.0:8000"]

render/docker-compose.yml

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+version: '3'
+
+services:
+  img:
+    build: .
+    ports:
+      - "${IMG_HOST_PORT}:8000"
+    restart: always
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.img.rule=Host(`${IMG_URL}`)"
+      - "traefik.http.routers.img.entrypoints=websecure"
+      - "traefik.http.routers.img.tls.certresolver=myresolver"
+      - "traefik.http.services.img.loadbalancer.server.port=8000"
+    networks:
+      - traefik_network
+
+networks:
+  traefik_network:
+    external: true

render/render.py

@@ -8,7 +8,8 @@ import io
 app = Flask(__name__)
 
 async def render_html_to_png(html_file_name, css_file_name, output_file_name):
-    browser = await launch()
+    #browser = await launch()
+    browser = await launch(executablePath='/usr/bin/google-chrome-stable', headless=True, args=['--no-sandbox'])
     page = await browser.newPage()
     await page.setViewport({'width': 800, 'height': 480})
 

render/requirements.txt

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+Flask==2.2.2
+Werkzeug==2.3.7
+gunicorn==20.1.0
+asyncio==3.4.3
+pyppeteer==2.0.0
+Pillow==9.0.0