We have set custom environment variables in the Elastic Beanstalk dashboard, under configuration=>software configuration=>"Environment Properties" section. In a C# MVC 5 project, we can just access these variables by looking for them with ConfigurationManager.AppSettings - that works great.
In .NET core, however, we don't use web.config anymore. We've been attempting to track down a way to access the environment variables, but all we've found is a nuget package called AWSSDK.Extensions.NETCore.Setup. However, this package does not seem to get us the access to the custom variables.
Any help would be greatly appreciated.
Based on my research and testing, this is a deficiency in AWS Elastic Beanstalk for ASP.NET Core 1.1 applications. Just ran into this issue today and the only way to solve it is to load the config that AWS writes (if it's there) using the ASP.NET ConfigurationBuilder and parse it.
AWS should eventually fix this, until then you can use the method I'm using:
public Startup(IHostingEnvironment env) { var builder = new ConfigurationBuilder() .SetBasePath(env.ContentRootPath) .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true) .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true) .AddJsonFile(@"C:\Program Files\Amazon\ElasticBeanstalk\config\containerconfiguration", optional: true, reloadOnChange: true) .AddEnvironmentVariables(); var config = builder.Build(); builder.AddInMemoryCollection(ParseEbConfig(config)); Configuration = builder.Build(); } private static Dictionary<string, string> ParseEbConfig(IConfiguration config) { Dictionary<string, string> dict = new Dictionary<string, string>(); foreach (IConfigurationSection pair in config.GetSection("iis:env").GetChildren()) { string[] keypair = pair.Value.Split(new[] { '=' }, 2); dict.Add(keypair[0], keypair[1]); } return dict; }
