Monitoring and Maintenance

Overview

This guide covers monitoring, maintenance, and operational procedures for Zafira in production environments.

System Monitoring

Health Checks

• Application Health: Monitor application status
• Database Health: Monitor database connectivity
• Redis Health: Monitor Redis cache status
• Web Server Health: Monitor web server status

Performance Monitoring

• Response Times: Monitor API response times
• Throughput: Monitor request throughput
• Resource Usage: Monitor CPU, memory, disk usage
• Error Rates: Monitor error rates and patterns

Log Monitoring

• Application Logs: Monitor application logs
• Error Logs: Monitor error logs
• Access Logs: Monitor access logs
• Security Logs: Monitor security events

Monitoring Tools

Application Performance Monitoring

• New Relic: Application performance monitoring
• DataDog: Infrastructure monitoring
• Prometheus: Metrics collection and alerting
• Grafana: Metrics visualization

Log Management

• ELK Stack: Elasticsearch, Logstash, Kibana
• Fluentd: Log collection and forwarding
• Splunk: Log analysis and monitoring
• CloudWatch: AWS cloud monitoring

Infrastructure Monitoring

• Nagios: Infrastructure monitoring
• Zabbix: Network and infrastructure monitoring
• Munin: System resource monitoring
• Cacti: Network monitoring

Alerting

Alert Types

• Critical Alerts: System down, database unavailable
• Warning Alerts: High resource usage, slow responses
• Info Alerts: Maintenance windows, deployments
• Security Alerts: Failed login attempts, suspicious activity

Alert Channels

• Email: Email notifications for alerts
• SMS: SMS notifications for critical alerts
• Slack: Team notifications via Slack
• PagerDuty: On-call management

Alert Configuration

alerts:
  - name: "High CPU Usage"
    condition: "cpu_usage > 80%"
    duration: "5m"
    severity: "warning"
    channels: ["email", "slack"]
  
  - name: "Database Down"
    condition: "database_status != 'up'"
    duration: "1m"
    severity: "critical"
    channels: ["email", "sms", "pagerduty"]

Maintenance Procedures

Regular Maintenance

• Daily: Check system health and logs
• Weekly: Review performance metrics
• Monthly: Security updates and patches
• Quarterly: Full system assessment

Backup Procedures

• Database Backups: Daily automated backups
• File Backups: Daily file system backups
• Configuration Backups: Backup system configurations
• Recovery Testing: Monthly recovery testing

Update Procedures

• Security Updates: Apply security patches promptly
• Feature Updates: Deploy feature updates during maintenance windows
• Dependency Updates: Update dependencies regularly
• Rollback Procedures: Maintain rollback procedures

Troubleshooting

Common Issues

• Performance Issues: Slow response times
• Database Issues: Connection problems
• Memory Issues: Memory leaks or high usage
• Disk Space: Disk space exhaustion

Diagnostic Tools

• System Commands: top, htop, iostat, netstat
• Database Tools: mysqladmin, pg_stat_activity
• Application Logs: Laravel logs, web server logs
• Network Tools: ping, traceroute, netstat

Resolution Procedures

• Issue Identification: Identify the root cause
• Impact Assessment: Assess business impact
• Resolution Steps: Document resolution steps
• Prevention Measures: Implement prevention measures

Performance Optimization

Database Optimization

• Query Optimization: Optimize slow queries
• Index Management: Manage database indexes
• Connection Pooling: Optimize database connections
• Caching: Implement database caching

Application Optimization

• Code Optimization: Optimize application code
• Caching: Implement application caching
• Session Management: Optimize session handling
• Asset Optimization: Optimize static assets

Infrastructure Optimization

• Load Balancing: Implement load balancing
• CDN: Use content delivery networks
• Caching Layers: Implement caching layers
• Resource Scaling: Scale resources as needed

Security Monitoring

Security Events

• Failed Logins: Monitor failed login attempts
• Suspicious Activity: Monitor suspicious behavior
• Data Access: Monitor data access patterns
• API Usage: Monitor API usage patterns

Vulnerability Management

• Vulnerability Scanning: Regular vulnerability scans
• Patch Management: Apply security patches
• Security Updates: Keep systems updated
• Threat Intelligence: Monitor threat intelligence

Incident Response

• Incident Detection: Detect security incidents
• Response Procedures: Follow incident response procedures
• Communication: Communicate with stakeholders
• Recovery: Recover from security incidents

Capacity Planning

Resource Planning

• CPU Planning: Plan CPU requirements
• Memory Planning: Plan memory requirements
• Storage Planning: Plan storage requirements
• Network Planning: Plan network capacity

Growth Planning

• User Growth: Plan for user growth
• Data Growth: Plan for data growth
• Traffic Growth: Plan for traffic growth
• Feature Growth: Plan for feature additions

Scaling Strategies

• Horizontal Scaling: Scale out with more servers
• Vertical Scaling: Scale up with more resources
• Load Distribution: Distribute load effectively
• Auto Scaling: Implement auto-scaling

Documentation

Runbooks

• Deployment Runbooks: Document deployment procedures
• Maintenance Runbooks: Document maintenance procedures
• Incident Response Runbooks: Document incident response
• Recovery Runbooks: Document recovery procedures

Knowledge Base

• Common Issues: Document common issues and solutions
• Best Practices: Document best practices
• Configuration Guides: Document configuration procedures
• Troubleshooting Guides: Document troubleshooting steps

Next Steps

• Production Deployment - Production setup
• Security Features - Security monitoring
• Scaling - Scaling strategies