v0.12.8 FCM bug fix

fcm-app/Dockerfile

@@ -0,0 +1,33 @@
+# Use Node.js 18 LTS
+FROM node:18-alpine
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files first (for better layer caching)
+COPY package*.json ./
+
+# Install dependencies and wget
+RUN npm install --omit=dev && apk add --no-cache wget
+
+# Create non-root user and a writable data directory before copying app code
+RUN addgroup -g 1001 -S nodejs && \
+    adduser -S nodejs -u 1001 && \
+    mkdir -p /app/data && \
+    chown nodejs:nodejs /app/data
+
+# Copy application code (exclude node_modules via .dockerignore)
+COPY --chown=nodejs:nodejs . .
+
+# Switch to non-root user
+USER nodejs
+
+# Expose port
+EXPOSE 3000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD node -e "require('http').get('http://localhost:3000', (res) => { process.exit(res.statusCode === 200 ? 0 : 1) })"
+
+# Start the application
+CMD ["npm", "start"]