Merge pull request #56 from mbarnes/middleware-panic-log-error

frontend: Log error when recovering from a panic

frontend/middleware_panic.go

@@ -4,14 +4,20 @@ package main
 // Licensed under the Apache License 2.0.
 
 import (
+	"fmt"
+	"log/slog"
 	"net/http"
+	"runtime/debug"
 
 	"github.com/Azure/ARO-HCP/internal/api/arm"
 )
 
 func MiddlewarePanic(w http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
 	defer func() {
 		if e := recover(); e != nil {
+			if logger, ok := r.Context().Value(ContextKeyLogger).(*slog.Logger); ok {
+				logger.Error(fmt.Sprintf("panic: %#v\n%s\n", e, string(debug.Stack())))
+			}
 			arm.WriteInternalServerError(w)
 		}
 	}()