Feature: Enhance Performance, Logging & Stability: Precompile Regex, Command Matching, Golang 1.24, History Cleanup & memLimitMiB Flag. (#182)

* Feat: Add support for logging which "command" was matched for SSH and HTTP strategies.

* Feat: Convert to precompiling regexp at config load time. This allows for errors to be presented to the user during startup, and provides better performance for complex regexp.

* Feat:Bump Golang version to latest stable 1.24

* Feat: Add a cleanup routine for HistoryStore, default TTL for events is 1 hour since last interaction.

* Feat: Add new command line flag "memLimitMiB" with a default value of 100.

---------

Signed-off-by: Bryan Nolen <bryan@arc.net.au>
Signed-off-by: Mario Candela <mario.candela.personal@gmail.com>
Co-authored-by: Mario Candela <mario.candela.personal@gmail.com>

main.go

@@ -2,6 +2,8 @@ package main
 
 import (
 	"flag"
+	"runtime/debug"
+
 	"github.com/mariocandela/beelzebub/v3/builder"
 	"github.com/mariocandela/beelzebub/v3/parser"
 
@@ -13,12 +15,20 @@ func main() {
 		quit                            = make(chan struct{})
 		configurationsCorePath          string
 		configurationsServicesDirectory string
+		memLimitMiB                     int
 	)
 
 	flag.StringVar(&configurationsCorePath, "confCore", "./configurations/beelzebub.yaml", "Provide the path of configurations core")
 	flag.StringVar(&configurationsServicesDirectory, "confServices", "./configurations/services/", "Directory config services")
+	flag.IntVar(&memLimitMiB, "memLimitMiB", 100, "Process Memory in MiB (default 100, set to -1 to use system default)")
 	flag.Parse()
 
+	if memLimitMiB > 0 {
+		// SetMemoryLimit takes an int64 value for the number of bytes.
+		// bytes value = MiB value * 1024 * 1024
+		debug.SetMemoryLimit(int64(memLimitMiB * 1024 * 1024))
+	}
+
 	parser := parser.Init(configurationsCorePath, configurationsServicesDirectory)
 
 	coreConfigurations, err := parser.ReadConfigurationsCore()