docker stuff

Dockerfile

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+
+FROM node:lts AS base
+WORKDIR /app
+
+# By copying only the package.json and package-lock.json here, we ensure that the following `-deps` steps are independent of the source code.
+# Therefore, the `-deps` steps will be skipped if only the source code changes.
+COPY package.json package-lock.json ./
+
+FROM base AS prod-deps
+RUN npm install --omit=dev
+
+FROM base AS build-deps
+RUN npm install
+
+FROM build-deps AS build
+COPY . .
+RUN npm run build
+
+FROM base AS runtime
+COPY --from=prod-deps /app/node_modules ./node_modules
+COPY --from=build /app/dist ./dist
+
+ENV HOST=0.0.0.0
+ENV PORT=4321
+EXPOSE 4321
+CMD node ./dist/server/entry.mjs