Log Aggregation in TuskLang - Bash Guide

📝 Revolutionary Log Aggregation Configuration

Log aggregation in TuskLang transforms your configuration files into intelligent, centralized logging systems. No more scattered log files or manual log analysis—everything lives in your TuskLang configuration with dynamic log collection, automated parsing, and intelligent search capabilities.

> "We don't bow to any king" – TuskLang log aggregation breaks free from traditional logging constraints and brings modern log management to your Bash applications.

🚀 Core Log Aggregation Directives

Basic Log Aggregation Setup

#log-aggregation: enabled            # Enable log aggregation
#log-enabled: true                   # Alternative syntax
#log-collection: true                # Enable log collection
#log-parsing: true                   # Enable log parsing
#log-search: true                    # Enable log search
#log-retention: 30d                  # Log retention period

Advanced Log Aggregation Configuration

#log-backend: elasticsearch          # Log aggregation backend
#log-indexing: true                  # Enable log indexing
#log-alerts: true                    # Enable log-based alerts
#log-dashboard: true                 # Enable log dashboard
#log-archiving: true                 # Enable log archiving
#log-compression: gzip               # Log compression method

🔧 Bash Log Aggregation Implementation

Basic Log Aggregation Manager

#!/bin/bash
Load log aggregation configuration
source <(tsk load log-aggregation.tsk)
Log aggregation configuration
LOG_ENABLED="${log_enabled:-true}"
LOG_COLLECTION="${log_collection:-true}"
LOG_PARSING="${log_parsing:-true}"
LOG_SEARCH="${log_search:-true}"
LOG_RETENTION="${log_retention:-30d}"
Log aggregation manager
class LogAggregationManager {
    constructor() {
        this.enabled = LOG_ENABLED
        this.collection = LOG_COLLECTION
        this.parsing = LOG_PARSING
        this.search = LOG_SEARCH
        this.retention = LOG_RETENTION
        this.logs = []
        this.stats = {
            logs_collected: 0,
            logs_parsed: 0,
            searches_performed: 0
        }
    }
    
    collectLogs() {
        if (!this.collection) return
        // Implementation for log collection
        this.stats.logs_collected++
    }
    
    parseLogs() {
        if (!this.parsing) return
        // Implementation for log parsing
        this.stats.logs_parsed++
    }
    
    searchLogs(query) {
        if (!this.search) return []
        // Implementation for log search
        this.stats.searches_performed++
        return []
    }
    
    getStats() {
        return { ...this.stats }
    }
}
Initialize log aggregation manager
const logManager = new LogAggregationManager()

Dynamic Log Collection

#!/bin/bash
Dynamic log collection
collect_system_logs() {
    local log_dir="${log_directory:-/var/log}"
    local output_file="${log_output_file:-/var/log/aggregated.log}"
    
    # Collect system logs
    find "$log_dir" -name "*.log" -type f -exec cat {} \; >> "$output_file"
    
    # Collect application logs
    collect_application_logs
    
    # Collect custom logs
    collect_custom_logs
    
    echo "✓ System logs collected to $output_file"
}
collect_application_logs() {
    local app_log_dir="${app_log_directory:-/var/www/logs}"
    
    if [[ -d "$app_log_dir" ]]; then
        find "$app_log_dir" -name "*.log" -type f -exec cat {} \; >> "/var/log/aggregated.log"
        echo "✓ Application logs collected"
    fi
}
collect_custom_logs() {
    # Collect custom log sources
    local custom_logs=(
        "/var/log/nginx/access.log"
        "/var/log/nginx/error.log"
        "/var/log/apache2/access.log"
        "/var/log/apache2/error.log"
    )
    
    for log_file in "${custom_logs[@]}"; do
        if [[ -f "$log_file" ]]; then
            cat "$log_file" >> "/var/log/aggregated.log"
        fi
    done
    
    echo "✓ Custom logs collected"
}

Automated Log Parsing

#!/bin/bash
Automated log parsing
parse_logs() {
    local input_file="${1:-/var/log/aggregated.log}"
    local output_file="${2:-/var/log/parsed.json}"
    
    # Parse different log formats
    parse_nginx_logs "$input_file" "$output_file"
    parse_apache_logs "$input_file" "$output_file"
    parse_system_logs "$input_file" "$output_file"
    
    echo "✓ Logs parsed to $output_file"
}
parse_nginx_logs() {
    local input_file="$1"
    local output_file="$2"
    
    # Parse Nginx access logs
    awk '
    /nginx/ && /access/ {
        split($0, fields, " ")
        print "{\"timestamp\": \"" fields[1] " " fields[2] "\", \"level\": \"info\", \"service\": \"nginx\", \"message\": \"" $0 "\"}"
    }
    ' "$input_file" >> "$output_file"
}
parse_apache_logs() {
    local input_file="$1"
    local output_file="$2"
    
    # Parse Apache access logs
    awk '
    /apache/ && /access/ {
        split($0, fields, " ")
        print "{\"timestamp\": \"" fields[1] " " fields[2] "\", \"level\": \"info\", \"service\": \"apache\", \"message\": \"" $0 "\"}"
    }
    ' "$input_file" >> "$output_file"
}
parse_system_logs() {
    local input_file="$1"
    local output_file="$2"
    
    # Parse system logs
    awk '
    /systemd/ || /kernel/ {
        split($0, fields, " ")
        print "{\"timestamp\": \"" fields[1] " " fields[2] "\", \"level\": \"info\", \"service\": \"system\", \"message\": \"" $0 "\"}"
    }
    ' "$input_file" >> "$output_file"
}

Intelligent Log Search

#!/bin/bash
Intelligent log search
search_logs() {
    local query="$1"
    local log_file="${2:-/var/log/aggregated.log}"
    local output_file="${3:-/var/log/search_results.log}"
    
    # Perform search
    grep -i "$query" "$log_file" > "$output_file"
    
    # Count results
    local result_count=$(wc -l < "$output_file")
    
    echo "✓ Search completed: $result_count results found"
    echo "Results saved to: $output_file"
}
search_logs_by_time() {
    local start_time="$1"
    local end_time="$2"
    local log_file="${3:-/var/log/aggregated.log}"
    
    # Search logs within time range
    awk -v start="$start_time" -v end="$end_time" '
    {
        timestamp = $1 " " $2
        if (timestamp >= start && timestamp <= end) {
            print $0
        }
    }
    ' "$log_file"
}
search_logs_by_level() {
    local level="$1"
    local log_file="${2:-/var/log/aggregated.log}"
    
    # Search logs by log level
    grep -i "$level" "$log_file"
}

Log Archiving and Compression

#!/bin/bash
Log archiving and compression
archive_logs() {
    local log_dir="${log_directory:-/var/log}"
    local archive_dir="${log_archive_directory:-/var/log/archives}"
    local retention_days="${log_retention_days:-30}"
    
    # Create archive directory
    mkdir -p "$archive_dir"
    
    # Archive old logs
    find "$log_dir" -name "*.log" -type f -mtime +"$retention_days" -exec mv {} "$archive_dir/" \;
    
    # Compress archived logs
    find "$archive_dir" -name "*.log" -type f -exec gzip {} \;
    
    echo "✓ Logs archived to $archive_dir"
}
compress_logs() {
    local log_file="$1"
    local compression_method="${log_compression:-gzip}"
    
    case "$compression_method" in
        "gzip")
            gzip "$log_file"
            ;;
        "bzip2")
            bzip2 "$log_file"
            ;;
        "xz")
            xz "$log_file"
            ;;
        *)
            echo "Unknown compression method: $compression_method"
            return 1
            ;;
    esac
    
    echo "✓ Log compressed: $log_file"
}

🎯 Real-World Configuration Examples

Complete Log Aggregation Configuration

log-aggregation-config.tsk
log_aggregation_config:
  enabled: true
  collection: true
  parsing: true
  search: true
  retention: 30d
#log-aggregation: enabled
#log-enabled: true
#log-collection: true
#log-parsing: true
#log-search: true
#log-retention: 30d
#log-backend: elasticsearch
#log-indexing: true
#log-alerts: true
#log-dashboard: true
#log-archiving: true
#log-compression: gzip
#log-config:
 collection:
   enabled: true
   sources:
     - "/var/log/*.log"
     - "/var/log/nginx/*.log"
     - "/var/log/apache2/*.log"
   interval: 60
 parsing:
   enabled: true
   formats:
     - "nginx"
     - "apache"
     - "systemd"
     - "custom"
 search:
   enabled: true
   index: true
   query_language: "lucene"
 retention:
   enabled: true
   period: "30d"
   archiving: true
   compression: true
 backend:
   type: "elasticsearch"
   url: "http://localhost:9200"
   index_prefix: "logs"
 alerts:
   enabled: true
   patterns:
     - "error"
     - "critical"
     - "fatal"
 dashboard:
   enabled: true
   url: "http://localhost:5601"
   refresh_interval: 30

Multi-Source Log Aggregation

multi-source-log-aggregation.tsk
multi_source_log_aggregation:
  sources:
    - name: system-logs
      path: /var/log
      enabled: true
    - name: application-logs
      path: /var/www/logs
      enabled: true
    - name: custom-logs
      path: /var/custom/logs
      enabled: false
#log-system-logs: enabled
#log-application-logs: enabled
#log-custom-logs: disabled
#log-config:
 sources:
   system_logs:
     enabled: true
     path: "/var/log"
     patterns: ["*.log"]
   application_logs:
     enabled: true
     path: "/var/www/logs"
     patterns: ["*.log"]
   custom_logs:
     enabled: false
     path: "/var/custom/logs"
     patterns: ["*.log"]

🚨 Troubleshooting Log Aggregation

Common Issues and Solutions

1. Log Collection Issues

Debug log collection
debug_log_collection() {
    echo "Debugging log collection..."
    collect_system_logs
    echo "Log collection completed"
}

2. Log Parsing Issues

Debug log parsing
debug_log_parsing() {
    local input_file="$1"
    echo "Debugging log parsing for: $input_file"
    parse_logs "$input_file"
    echo "Log parsing completed"
}

🔒 Security Best Practices

Log Aggregation Security Checklist

Security validation
validate_log_aggregation_security() {
    echo "Validating log aggregation security configuration..."
    # Check log encryption
    if [[ "${log_encryption}" == "true" ]]; then
        echo "✓ Log encryption enabled"
    else
        echo "⚠ Log encryption not enabled"
    fi
    # Check access controls
    if [[ "${log_access_controls}" == "true" ]]; then
        echo "✓ Log access controls enabled"
    else
        echo "⚠ Log access controls not enabled"
    fi
    # Check data retention
    if [[ -n "${log_retention}" ]]; then
        echo "✓ Log retention configured: ${log_retention}"
    else
        echo "⚠ Log retention not configured"
    fi
}

📈 Performance Optimization Tips

Log Aggregation Performance Checklist

Performance validation
validate_log_aggregation_performance() {
    echo "Validating log aggregation performance configuration..."
    # Check collection interval
    local collection_interval="${log_collection_interval:-60}" # seconds
    if [[ "$collection_interval" -ge 30 ]]; then
        echo "✓ Reasonable collection interval ($collection_interval s)"
    else
        echo "⚠ High-frequency collection may impact performance ($collection_interval s)"
    fi
    # Check compression
    if [[ "${log_compression}" == "true" ]]; then
        echo "✓ Log compression enabled"
    else
        echo "⚠ Log compression not enabled"
    fi
    # Check indexing
    if [[ "${log_indexing}" == "true" ]]; then
        echo "✓ Log indexing enabled"
    else
        echo "⚠ Log indexing not enabled"
    fi
}

🎯 Next Steps

- Log Analysis: Learn about advanced log analysis - Log Visualization: Create log visualization dashboards - Log Correlation: Implement log correlation and alerting - Log Compliance: Set up log compliance and auditing

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Log aggregation transforms your TuskLang configuration into an intelligent, centralized logging system. It brings modern log management to your Bash applications with dynamic collection, automated parsing, and comprehensive search capabilities!