Refactor: Rename NanoKVM to BatchuKVM and update server URL

server/config/file.go

@@ -0,0 +1,45 @@
+package config
+
+import (
+	"os"
+
+	log "github.com/sirupsen/logrus"
+	"gopkg.in/yaml.v3"
+)
+
+const ConfigurationFile = "/etc/kvm/server.yaml"
+
+func Read() (*Config, error) {
+	data, err := os.ReadFile(ConfigurationFile)
+	if err != nil {
+		log.Errorf("failed to read config: %v", err)
+		return nil, err
+	}
+
+	var conf Config
+
+	if err := yaml.Unmarshal(data, &conf); err != nil {
+		log.Fatalf("failed to unmarshal config: %v", err)
+		return nil, err
+	}
+
+	log.Debugf("read %s successfully", ConfigurationFile)
+	return &conf, nil
+}
+
+func Write(conf *Config) error {
+	data, err := yaml.Marshal(&conf)
+	if err != nil {
+		log.Errorf("failed to marshal config: %v", err)
+		return err
+	}
+
+	err = os.WriteFile(ConfigurationFile, data, 0644)
+	if err != nil {
+		log.Errorf("failed to write config: %v", err)
+		return err
+	}
+
+	log.Debugf("write to %s successfully", ConfigurationFile)
+	return nil
+}