read values from env and add Dockerfile

extra/4play/Dockerfile

@@ -0,0 +1,19 @@
+FROM alpine:3.21
+WORKDIR /app
+
+RUN apk update && apk upgrade
+RUN apk add nodejs npm
+
+COPY package*.json ./
+
+RUN npm ci --only=production && npm cache clean --force
+
+COPY . .
+
+EXPOSE 3030
+
+ENTRYPOINT  ["node"]
+CMD ["page-render.js"]
+
+
+