experiments with docker packaging, figuring out deploy plan

Dockerfile

@@ -0,0 +1,20 @@
+FROM mcr.microsoft.com/playwright:focal
+
+WORKDIR /app
+
+COPY ./package*.json .
+
+RUN npm config set unsafe-perm true
+
+RUN npm ci
+
+RUN npm install sharp --ignore-scripts=false
+
+COPY . .
+
+RUN npm run build
+
+EXPOSE 3000
+EXPOSE 3100
+
+CMD [ "npm", "start" ]