make docker grate again ^^

backend/Dockerfile

@@ -0,0 +1,62 @@
+# Stage 1: Build Dependencies
+# Use an official Node.js runtime as a parent image
+FROM node:18-alpine AS builder
+
+WORKDIR /app
+
+# Install OS dependencies needed for ping/traceroute
+# Using apk add --no-cache reduces layer size
+RUN apk add --no-cache iputils-ping traceroute
+
+# Copy package.json and package-lock.json (or yarn.lock)
+COPY package*.json ./
+
+# Install app dependencies using npm ci for faster, reliable builds
+# --only=production installs only production dependencies
+RUN npm ci --only=production
+
+# Stage 2: Production Image
+FROM node:18-alpine
+
+WORKDIR /app
+
+# Install only necessary OS dependencies again for the final image
+RUN apk add --no-cache iputils-ping traceroute
+
+# Copy dependencies from the builder stage
+COPY --from=builder /app/node_modules ./node_modules
+
+# Copy application code
+COPY . .
+
+# Copy MaxMind data (assuming it's in ./data)
+# Ensure the 'data' directory exists in your project root
+COPY ./data ./data
+
+# Create a non-root user and group
+RUN addgroup -S appgroup && adduser -S appuser -G appgroup
+# Optional: Change ownership of app files to the new user
+# RUN chown -R appuser:appgroup /app
+
+# Switch to the non-root user
+USER appuser
+
+# Make port specified in environment variable available to the world outside this container
+# Default to 3000 if not specified
+ARG PORT=3000
+ENV PORT=${PORT}
+EXPOSE ${PORT}
+
+# Define environment variable for Node environment (important for Pino, Express etc.)
+ENV NODE_ENV=production
+# Define default Log Level if not set externally
+ENV LOG_LEVEL=info
+# Define default Ping Count if not set externally
+ENV PING_COUNT=4
+# Define paths to GeoIP DBs (can be overridden by external .env or docker run -e)
+ENV GEOIP_CITY_DB=./data/GeoLite2-City.mmdb
+ENV GEOIP_ASN_DB=./data/GeoLite2-ASN.mmdb
+
+
+# Run the app when the container launches
+CMD ["node", "server.js"]