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feat: Add comprehensive enterprise Linux infrastructure portfolio with Ansible, Python, and ELK stack
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Mateusz Suski
2026-04-29 23:14:14 +00:00
parent 2313efac88
commit 7757020014
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# Sample Application Logs for Observability Stack Testing
# Generated realistic log entries for demonstration and testing
[2024-01-15 08:30:15] INFO com.example.app.Application - Application started successfully on port 8080
[2024-01-15 08:30:16] INFO com.example.database.ConnectionPool - Database connection pool initialized with 10 connections
[2024-01-15 08:30:17] INFO com.example.cache.RedisCache - Redis cache connected successfully
[2024-01-15 08:30:18] INFO com.example.messaging.RabbitMQClient - Message queue connection established
[2024-01-15 08:31:22] INFO com.example.api.UserController - User login attempt: user=john.doe, ip=192.168.1.100
[2024-01-15 08:31:23] INFO com.example.auth.AuthService - Authentication successful for user john.doe
[2024-01-15 08:31:24] INFO com.example.api.UserController - API request: GET /api/users/profile, status=200, duration=45ms
[2024-01-15 08:32:01] WARN com.example.cache.RedisCache - Cache miss for key: user_profile_12345
[2024-01-15 08:32:02] INFO com.example.database.UserRepository - Database query executed: SELECT * FROM users WHERE id = ?, duration=120ms
[2024-01-15 08:32:03] INFO com.example.cache.RedisCache - Cache populated for key: user_profile_12345
[2024-01-15 08:35:12] ERROR com.example.api.OrderController - Failed to process order: order_id=ORD-2024-001, error=Payment gateway timeout
[2024-01-15 08:35:13] WARN com.example.messaging.RabbitMQClient - Message delivery failed, retrying in 5 seconds
[2024-01-15 08:35:18] INFO com.example.messaging.RabbitMQClient - Message delivered successfully after retry
[2024-01-15 08:40:05] INFO com.example.monitoring.HealthCheck - Health check passed: database=OK, cache=OK, messaging=OK
[2024-01-15 08:40:06] INFO com.example.metrics.MetricsCollector - Metrics collected: active_users=1250, requests_per_second=45.2
[2024-01-15 08:45:30] ERROR com.example.external.PaymentGateway - Payment gateway connection failed: Connection refused
[2024-01-15 08:45:31] ERROR com.example.api.PaymentController - Payment processing failed for transaction TXN-789012
[2024-01-15 08:45:32] WARN com.example.circuitbreaker.PaymentCircuitBreaker - Circuit breaker opened for payment service
[2024-01-15 08:50:15] INFO com.example.batch.BatchProcessor - Batch job started: job_id=BATCH-001, records=10000
[2024-01-15 08:50:45] INFO com.example.batch.BatchProcessor - Batch job progress: processed=2500/10000 (25%)
[2024-01-15 08:51:15] INFO com.example.batch.BatchProcessor - Batch job progress: processed=5000/10000 (50%)
[2024-01-15 08:51:45] INFO com.example.batch.BatchProcessor - Batch job progress: processed=7500/10000 (75%)
[2024-01-15 08:52:10] INFO com.example.batch.BatchProcessor - Batch job completed: job_id=BATCH-001, duration=175s, success=true
[2024-01-15 09:00:00] INFO com.example.scheduled.CleanupJob - Scheduled cleanup job started
[2024-01-15 09:00:05] INFO com.example.scheduled.CleanupJob - Cleaned up 150 expired sessions
[2024-01-15 09:00:10] INFO com.example.scheduled.CleanupJob - Removed 25 temporary files
[2024-01-15 09:00:15] INFO com.example.scheduled.CleanupJob - Cleanup job completed successfully
[2024-01-15 09:15:22] WARN com.example.database.ConnectionPool - Connection pool nearing capacity: active=8/10
[2024-01-15 09:15:23] INFO com.example.database.ConnectionPool - Connection pool expanded to 15 connections
[2024-01-15 09:30:45] ERROR com.example.api.ProductController - Database query timeout: query=SELECT * FROM products WHERE category = 'electronics'
[2024-01-15 09:30:46] WARN com.example.database.ConnectionPool - Connection pool exhausted, rejecting request
[2024-01-15 09:30:47] ERROR com.example.api.ProductController - Service temporarily unavailable, status=503
[2024-01-15 09:45:12] INFO com.example.monitoring.AlertManager - Alert triggered: High CPU usage detected (85%)
[2024-01-15 09:45:13] INFO com.example.autoscaling.ScaleManager - Auto-scaling initiated: increasing instances from 3 to 5
[2024-01-15 10:00:00] INFO com.example.backup.BackupService - Database backup started
[2024-01-15 10:05:30] INFO com.example.backup.BackupService - Database backup completed: size=2.3GB, duration=330s
[2024-01-15 10:30:15] WARN com.example.security.SecurityFilter - Suspicious activity detected: multiple failed login attempts from IP 10.0.0.50
[2024-01-15 10:30:16] INFO com.example.security.SecurityFilter - IP 10.0.0.50 blocked for 15 minutes
[2024-01-15 11:00:00] INFO com.example.reporting.ReportGenerator - Daily report generation started
[2024-01-15 11:05:00] INFO com.example.reporting.ReportGenerator - Daily report completed: transactions=15420, revenue=$125,430.50
[2024-01-15 12:00:00] ERROR com.example.external.APIGateway - External API rate limit exceeded: retrying in 60 seconds
[2024-01-15 12:01:00] INFO com.example.external.APIGateway - External API connection restored
[2024-01-15 13:15:30] CRITICAL com.example.system.SystemMonitor - Disk space critical: /var/log usage at 95%
[2024-01-15 13:15:31] INFO com.example.maintenance.LogRotation - Emergency log rotation initiated
[2024-01-15 13:15:35] INFO com.example.maintenance.LogRotation - Log rotation completed: freed 2.1GB space
[2024-01-15 14:00:00] INFO com.example.metrics.PerformanceMonitor - Performance baseline established: avg_response_time=245ms, throughput=1200 req/sec
[2024-01-15 15:30:45] WARN com.example.cache.RedisCache - Cache cluster node down: redis-node-03
[2024-01-15 15:30:46] INFO com.example.cache.RedisCache - Failover initiated to redis-node-04
[2024-01-15 16:45:12] ERROR com.example.messaging.MessageProcessor - Message processing failed: invalid message format
[2024-01-15 16:45:13] INFO com.example.messaging.DeadLetterQueue - Message moved to dead letter queue
[2024-01-15 17:00:00] INFO com.example.backup.BackupService - Full system backup started
[2024-01-15 17:30:00] INFO com.example.backup.BackupService - Full system backup completed: size=45.2GB, duration=1800s
[2024-01-15 18:00:00] INFO com.example.monitoring.HealthCheck - Evening health check: all systems operational
[2024-01-15 18:00:01] INFO com.example.metrics.MetricsCollector - End of day metrics: total_requests=125000, error_rate=0.02%, avg_response_time=198ms
# Additional realistic log patterns for testing
[2024-01-15 08:15:30] INFO nginx: 192.168.1.100 - - [15/Jan/2024:08:15:30 +0000] "GET /api/health HTTP/1.1" 200 123 "-" "curl/7.68.0"
[2024-01-15 08:15:31] INFO nginx: 192.168.1.101 - - [15/Jan/2024:08:15:31 +0000] "POST /api/login HTTP/1.1" 200 456 "-" "Mozilla/5.0 ..."
[2024-01-15 08:15:32] WARN nginx: 192.168.1.102 - - [15/Jan/2024:08:15:32 +0000] "GET /api/admin HTTP/1.1" 403 234 "-" "Mozilla/5.0 ..."
[2024-01-15 09:20:15] INFO systemd: Started Session 1234 of user john.doe
[2024-01-15 09:20:16] INFO systemd: Started User Manager for UID 1000
[2024-01-15 09:20:17] INFO systemd: Started Session 1235 of user jane.smith
[2024-01-15 10:45:30] WARN kernel: [ 1234.567890] CPU0: Core temperature above threshold, cpu clock throttled
[2024-01-15 10:45:31] INFO kernel: [ 1234.678901] CPU0: Temperature back to normal
[2024-01-15 14:30:15] ERROR postgres: FATAL: password authentication failed for user "app_user"
[2024-01-15 14:30:16] ERROR postgres: FATAL: password authentication failed for user "app_user"
[2024-01-15 14:30:17] WARN postgres: too many connections for role "app_user"
[2024-01-15 16:15:45] INFO rabbitmq: accepting AMQP connection <0.1234.0> (192.168.1.100:5672 -> 192.168.1.50:5672)
[2024-01-15 16:15:46] INFO rabbitmq: connection <0.1234.0> (192.168.1.100:5672 -> 192.168.1.50:5672): user 'app_user' authenticated
[2024-01-15 16:15:47] WARN rabbitmq: connection <0.1234.0> (192.168.1.100:5672 -> 192.168.1.50:5672): missed heartbeats from client, timeout: 60s