Configure GOMAXPROCS and update docker-compose for CPU limits

cmd/jwt-microservice/main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"log/slog"
 	"net/http"
+	"runtime"
 
 	"github.com/GregoryKogan/jwt-microservice/pkg/auth"
 	"github.com/GregoryKogan/jwt-microservice/pkg/cache"
@@ -16,6 +17,12 @@ func main() {
 	config.Init()
 	logging.Init()
 
+	maxProcs := viper.GetInt("server.max_processors")
+	if maxProcs > 0 {
+		runtime.GOMAXPROCS(maxProcs)
+		slog.Info("Processor configuration", slog.Int("max_procs", maxProcs), slog.Int("system_logical_procs", runtime.NumCPU()))
+	}
+
 	mux := http.NewServeMux()
 
 	slog.Info("Initializing cache connection")

config.yml

@@ -1,5 +1,6 @@
 server:
   port: 8080
+  max_processors: 2 # sets GOMAXPROCS
 
 logging:
   # available modes: text, json

docker-compose.yml

@@ -20,6 +20,10 @@ services:
           path: ./pkg
         - action: rebuild
           path: ./internal
+    deploy:
+      resources:
+        limits:
+          cpus: '0.50'
 
   cache:
     container_name: jwt-cache