In the case of CLI, current directory affect to read appsettings.json file.

[daisukenishino2]

Requirement

In the case of the CLI, depending on the current directory, there possibility to occur problem with the path for read appsettings.json file. In Container, the current directory can be set to handle this, but in CLI, it can be executed in any current directory.

• .NET Core 2.0 appsettings.json file location when dealing with multiple projects - Stack Overflow
• [C#] 実行ファイルのある場所を取得|へっぽこプログラマーの備忘録
  http://kuttsun.blogspot.com/2018/05/c.html

var dir = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);

↓ ↓ ↓

// configの初期化
string dir = new FileInfo(Assembly.GetExecutingAssembly().Location).Directory
    .FullName.Replace(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
GetConfigParameter.InitConfiguration(dir + "/appsettings.json");

Maybe you can execute with Linux-style path.