Production optimization: Docker configuration and monitoring stack

🚀 Docker Production Optimizations:
- Chiseled Ubuntu base image for minimal attack surface
- Non-root user execution with security hardening
- Read-only filesystem with targeted writable volumes
- Resource limits (1GB RAM, 1 CPU) with health checks
- Multi-stage builds optimized for caching
- Zero-downtime deployment automation

🔍 Comprehensive Monitoring Stack:
- Prometheus metrics collection with custom rules
- Grafana dashboards for application visualization
- AlertManager with email notifications for critical events
- Fluentd centralized logging with retention policies
- Node Exporter + cAdvisor for system/container metrics
- Health check endpoint (/health) for container orchestration

📋 Production Deployment Ready:
- Complete deployment scripts with backup strategy
- Environment templates for secure configuration
- Performance monitoring and alerting rules
- Enterprise-grade security and observability

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

docker-compose.monitoring.yml

@@ -0,0 +1,160 @@
+version: '3.8'
+
+# Monitoring and Observability Stack for LittleShop
+# Includes: Prometheus, Grafana, AlertManager, and Log Aggregation
+
+services:
+  # Prometheus for metrics collection
+  prometheus:
+    image: prom/prometheus:v2.53.0
+    container_name: littleshop_prometheus
+    restart: unless-stopped
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/prometheus'
+      - '--web.console.libraries=/etc/prometheus/console_libraries'
+      - '--web.console.templates=/etc/prometheus/consoles'
+      - '--storage.tsdb.retention.time=15d'
+      - '--web.enable-lifecycle'
+      - '--web.enable-admin-api'
+    volumes:
+      - ./docker/prometheus.yml:/etc/prometheus/prometheus.yml:ro
+      - prometheus_data:/prometheus
+    networks:
+      - monitoring
+      - traefik
+    labels:
+      - "traefik.enable=true"
+      - "traefik.docker.network=traefik"
+      - "traefik.http.routers.prometheus.rule=Host(`prometheus.silverlabs.uk`)"
+      - "traefik.http.routers.prometheus.entrypoints=websecure"
+      - "traefik.http.routers.prometheus.tls=true"
+      - "traefik.http.routers.prometheus.tls.certresolver=letsencrypt"
+      - "traefik.http.services.prometheus.loadbalancer.server.port=9090"
+
+  # Grafana for visualization
+  grafana:
+    image: grafana/grafana:11.0.0
+    container_name: littleshop_grafana
+    restart: unless-stopped
+    environment:
+      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_ADMIN_PASSWORD:-admin}
+      - GF_SECURITY_ADMIN_USER=${GRAFANA_ADMIN_USER:-admin}
+      - GF_USERS_ALLOW_SIGN_UP=false
+      - GF_SECURITY_DISABLE_GRAVATAR=true
+      - GF_ANALYTICS_REPORTING_ENABLED=false
+      - GF_ANALYTICS_CHECK_FOR_UPDATES=false
+      - GF_INSTALL_PLUGINS=grafana-clock-panel,grafana-simple-json-datasource
+    volumes:
+      - grafana_data:/var/lib/grafana
+      - ./docker/grafana/provisioning:/etc/grafana/provisioning:ro
+      - ./docker/grafana/dashboards:/var/lib/grafana/dashboards:ro
+    networks:
+      - monitoring
+      - traefik
+    depends_on:
+      - prometheus
+    labels:
+      - "traefik.enable=true"
+      - "traefik.docker.network=traefik"
+      - "traefik.http.routers.grafana.rule=Host(`grafana.silverlabs.uk`)"
+      - "traefik.http.routers.grafana.entrypoints=websecure"
+      - "traefik.http.routers.grafana.tls=true"
+      - "traefik.http.routers.grafana.tls.certresolver=letsencrypt"
+      - "traefik.http.services.grafana.loadbalancer.server.port=3000"
+
+  # AlertManager for alerting
+  alertmanager:
+    image: prom/alertmanager:v0.27.0
+    container_name: littleshop_alertmanager
+    restart: unless-stopped
+    command:
+      - '--config.file=/etc/alertmanager/alertmanager.yml'
+      - '--storage.path=/alertmanager'
+      - '--web.external-url=https://alerts.silverlabs.uk'
+    volumes:
+      - ./docker/alertmanager.yml:/etc/alertmanager/alertmanager.yml:ro
+      - alertmanager_data:/alertmanager
+    networks:
+      - monitoring
+      - traefik
+    labels:
+      - "traefik.enable=true"
+      - "traefik.docker.network=traefik"
+      - "traefik.http.routers.alertmanager.rule=Host(`alerts.silverlabs.uk`)"
+      - "traefik.http.routers.alertmanager.entrypoints=websecure"
+      - "traefik.http.routers.alertmanager.tls=true"
+      - "traefik.http.routers.alertmanager.tls.certresolver=letsencrypt"
+      - "traefik.http.services.alertmanager.loadbalancer.server.port=9093"
+
+  # Log aggregation with Fluentd
+  fluentd:
+    image: fluent/fluentd:v1.16-1
+    container_name: littleshop_fluentd
+    restart: unless-stopped
+    volumes:
+      - ./docker/fluentd.conf:/fluentd/etc/fluent.conf:ro
+      - littleshop_logs:/fluentd/log:ro
+      - fluentd_logs:/fluentd/log/output
+      - fluentd_buffer:/fluentd/log/buffer
+    networks:
+      - monitoring
+    environment:
+      - FLUENTD_CONF=fluent.conf
+
+  # Node Exporter for system metrics
+  node_exporter:
+    image: prom/node-exporter:v1.8.0
+    container_name: littleshop_node_exporter
+    restart: unless-stopped
+    command:
+      - '--path.procfs=/host/proc'
+      - '--path.sysfs=/host/sys'
+      - '--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)'
+    volumes:
+      - /proc:/host/proc:ro
+      - /sys:/host/sys:ro
+      - /:/rootfs:ro
+    networks:
+      - monitoring
+
+  # cAdvisor for container metrics
+  cadvisor:
+    image: gcr.io/cadvisor/cadvisor:v0.47.0
+    container_name: littleshop_cadvisor
+    restart: unless-stopped
+    privileged: true
+    devices:
+      - /dev/kmsg:/dev/kmsg
+    volumes:
+      - /:/rootfs:ro
+      - /var/run:/var/run:rw
+      - /sys:/sys:ro
+      - /var/lib/docker:/var/lib/docker:ro
+      - /cgroup:/cgroup:ro
+    networks:
+      - monitoring
+    command:
+      - '--housekeeping_interval=30s'
+      - '--docker_only=true'
+
+volumes:
+  prometheus_data:
+    driver: local
+  grafana_data:
+    driver: local
+  alertmanager_data:
+    driver: local
+  littleshop_logs:
+    external: true
+    name: littleshop_littleshop_logs
+  fluentd_logs:
+    driver: local
+  fluentd_buffer:
+    driver: local
+
+networks:
+  monitoring:
+    driver: bridge
+  traefik:
+    external: true