Fix dataSourceName config to use correct DB host in Docker.

conf/conf.go

@@ -0,0 +1,33 @@
+// Copyright 2021 The casbin Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package conf
+
+import (
+	"os"
+	"strings"
+
+	"github.com/astaxie/beego"
+)
+
+func GetBeegoConfDataSourceName() string {
+	dataSourceName := beego.AppConfig.String("dataSourceName")
+
+	runningInDocker := os.Getenv("RUNNING_IN_DOCKER")
+	if runningInDocker != "" {
+		dataSourceName = strings.ReplaceAll(dataSourceName, "localhost", "host.docker.internal")
+	}
+
+	return dataSourceName
+}