Docker mit traefik und portainer

nodejs-version/backend/Dockerfile

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+# Backend Dockerfile
+FROM node:18-alpine AS builder
+
+# Install OpenSSL for Prisma compatibility
+RUN apk add --no-cache openssl openssl-dev
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm ci --only=production
+
+# Copy source code
+COPY . .
+
+# Build the application
+RUN npm run build
+
+# Production stage
+FROM node:18-alpine AS production
+
+# Install required system dependencies for Prisma and health checks
+RUN apk add --no-cache \
+    curl \
+    openssl \
+    openssl-dev \
+    libc6-compat \
+    && rm -rf /var/cache/apk/*
+
+# Install curl for healthcheck
+RUN apk add --no-cache curl
+
+# Create app user
+RUN addgroup -g 1001 -S nodejs
+RUN adduser -S backend -u 1001
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install only production dependencies
+RUN npm ci --only=production && npm cache clean --force
+
+# Copy built application from builder stage
+COPY --from=builder /app/dist ./dist
+
+# Copy prisma schema for runtime
+COPY --from=builder /app/prisma ./prisma
+
+# Create uploads directory
+RUN mkdir -p uploads legacy-uploads && chown -R backend:nodejs uploads legacy-uploads
+
+# Create migration script for legacy uploads (via volumes)
+COPY <<EOF ./migrate-uploads.sh
+#!/bin/sh
+# This will be handled via volume mounts in docker-compose
+# The legacy upload/ directory will be mounted to /app/legacy-uploads
+if [ -d "/app/legacy-uploads" ] && [ "$(ls -A /app/legacy-uploads)" ]; then
+  echo "Migrating legacy uploads from volume..."
+  cp -r /app/legacy-uploads/* /app/uploads/ 2>/dev/null || true
+  chown -R backend:nodejs /app/uploads
+  echo "Upload migration completed."
+else
+  echo "No legacy uploads found to migrate."
+fi
+EOF
+
+RUN chmod +x ./migrate-uploads.sh
+
+# Generate Prisma client
+RUN npx prisma generate
+
+# Switch to non-root user
+USER backend
+
+# Expose port
+EXPOSE 3001
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+  CMD curl -f http://localhost:3001/api/health || exit 1
+
+# Start the application
+CMD ["sh", "-c", "./migrate-uploads.sh && node dist/app.js"]