the final thing ..

Dockerfile

@@ -6,8 +6,16 @@ RUN apt-get update \
     && wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
     && sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list' \
     && apt-get update \
-    && apt-get install -y python3 build-essential google-chrome-stable fonts-ipafont-gothic fonts-wqy-microhei fonts-wqy-zenhei fonts-thai-tlwg fonts-kacst fonts-freefont-ttf libxss1 dumb-init \
+    && apt-get install -y \
+        python3 build-essential google-chrome-stable fonts-ipafont-gothic fonts-wqy-microhei fonts-wqy-zenhei fonts-thai-tlwg fonts-kacst fonts-freefont-ttf libxss1 \
+        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 libxtst6 \
+        ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils \
+        xvfb x11vnc x11-xkb-utils xfonts-100dpi xfonts-75dpi xfonts-scalable xfonts-cyrillic x11-apps \
       --no-install-recommends \
+    && npm -g install pm2 \
     && rm -rf /tmp/* /var/tmp/* /var/lib/apt/lists/*
 
 WORKDIR /usr/src/app
@@ -17,5 +25,5 @@ RUN npm ci && \
 COPY . ./
 RUN npm run build
 
-ENTRYPOINT ["/usr/bin/dumb-init", "--"]
-CMD ["npm", "run", "start:prod"]
+ENV DISPLAY :99
+CMD ["pm2-docker", "/usr/src/app/pm2-docker.json"]

pm2-docker.json

+{
+  "apps": [
+    {
+      "name": "x11",
+      "script": "Xvfb",
+      "args": ":99 -screen 0 1024x768x16"
+    },
+    {
+      "name": "app",
+      "script": "npm",
+      "args": "run start:prod",
+      "interpreter": "node"
+    },
+  ]
+}