initial commit

Change-Id: Iccb9a69a29ce96d618762c5c852c8ec43d9b78df

Dockerfile

@@ -0,0 +1,24 @@
+# ---- Dependency install stage ----
+FROM node:20-alpine AS deps
+WORKDIR /app
+COPY package.json ./
+RUN npm install --omit=dev
+
+# ---- Runtime stage ----
+FROM node:20-alpine
+WORKDIR /app
+
+# Non-root user
+RUN addgroup -S appgroup && adduser -S appuser -G appgroup
+USER appuser
+
+COPY --from=deps /app/node_modules ./node_modules
+COPY package.json ./
+COPY src/ ./src/
+
+EXPOSE 3000
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
+    CMD wget -qO- http://localhost:3000/health | grep -q 'UP' || exit 1
+
+CMD ["node", "src/index.js"]