add CI stuff

Dockerfile

@@ -0,0 +1,19 @@
+FROM node:18-alpine as base
+WORKDIR /app
+
+# Build layer
+FROM base as build
+
+COPY package-lock.json package.json ./
+RUN npm install --frozen-lockfile
+COPY . .
+RUN npm run build
+
+# Production layer
+FROM base as production
+
+EXPOSE 3000
+ENV NODE_ENV=production
+COPY --from=build /app/.output ./.output
+
+CMD ["node", ".output/server/index.mjs"]