Add Dockerfile and Compose file for development

Author: mikesir87

Dockerfile

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+FROM node:lts-slim AS base
+WORKDIR /usr/local/app
+
+COPY package*.json ./
+RUN npm install
+COPY ./src ./src
+
+FROM base AS dev
+CMD ["npm", "run", "dev"]
+
+FROM base AS prod
+USER node
+EXPOSE 3000
+CMD ["node", "src/index.js"]

compose.yaml

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+services:
+  app:
+    build:
+      context: .
+      target: dev
+    ports:
+      - 3000:3000
+    develop:
+      watch:
+        - path: ./src
+          action: sync
+          target: /usr/local/app/src
+        - path: ./package-lock.json
+          action: rebuild