C# AWS Parameter Store - Configuration not loading SystemManagerConfiguration in .Net 6

Question

Application is not able to talk to AWS Parameter Store in .NET 6. It is always talking to appsettings.json.

I tried debugging locally, still same behavior. Not able to find the SystemManagerConfiguration under list of configuration .

var builder = WebApplication.CreateBuilder();
var connectionString = builder.Configuration.GetConnectionString("OrderTrackerDatabase");

Packages Used

Library Source Code : https://github.com/aws/aws-dotnet-extensions-configuration

image

you mean do .Build() after adding system manager? builder.AddSystemsManager("/OrderTracking/", TimeSpan.FromSeconds(30)); builder.Build() ; — Viresh Mathad
– Viresh Mathad, Commented Mar 3, 2022 at 5:23

Larry · Accepted Answer · 2022-06-23 02:10:32Z

1

I got the same issue and finally resolved it. The samples code in https://github.com/aws/aws-dotnet-extensions-configuration missed one line as below after called "AddSystemsManager" method in .Net 6.

builder.Services.Configure<Settings>(builder.Configuration.GetSection($"common:settings"));

After added above line, then I'm able to get the correct values from AWS Parameter Store when using the settings.

I've also created an issue of this in GitHub as below - https://github.com/aws/aws-dotnet-extensions-configuration/issues/114

answered Jun 23, 2022 at 2:10

Larry

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2 Comments

Viresh Mathad Over a year ago

have u checked this solution? stackoverflow.com/a/71332859/4520493

Larry Over a year ago

Thanks @VireshMathad, my project and the sample project don't use database connection, so this solution is not relevant for our issue. I've created a PR as below in the source code repo for resolving the issue I encountered, it's very similar with this one but slightly different, might be useful for other developers who got the same issue. github.com/aws/aws-dotnet-extensions-configuration/pull/115

Tim Bassett · Accepted Answer · 2022-03-02 14:47:27Z

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I believe the problem might be the trailing slash after "/OrderTracking/", try "/OrderTracking" instead.

answered Mar 2, 2022 at 14:47

Tim Bassett

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5 Comments

Viresh Mathad Over a year ago

not really, tried both. Slash doesn't matter. While debugging, Configuration Manager should show SystemManagerConfiguration but it isn't. It is not getting added.

Viresh Mathad Over a year ago

I'm talking about image 2 in the post btw

Tim Bassett Over a year ago

Got ya. Didn't know the behavior of it if it "doesn't exist". Where are you adding the json files? How come it's not in the same place? Is it possible you don't have the same IConfigurationRoot @ that point in time? Maybe post a bit more of the code?

Viresh Mathad Over a year ago

I'm sorry, I do not understand. I'm not adding any new json file, the config is present in the appsettings.json. This is the C# library package which I'm using - github.com/aws/aws-dotnet-extensions-configuration

Viresh Mathad Over a year ago

Thanks Tim for taking a look. I figured the root cause - stackoverflow.com/a/71332859/4520493

Viresh Mathad · Accepted Answer · 2022-03-03 06:20:03Z

0

WebApplication.CreateBuilder() will create new instance and doesn't carry over the SystemManager configuration.

Instead, use IConfiguration instance through constructor DI.

 var connectionString = _configuration.GetConnectionString("OrderTrackerDatabase");

answered Mar 3, 2022 at 6:20

Viresh Mathad

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Comments

VanavaraVL · Accepted Answer · 2022-10-26 17:01:37Z

0

In my case this extensions method was returning null at my lambda:

private static IConfiguration InitializeConfiguration() => new ConfigurationBuilder()
        .AddSystemsManager($"/my-data", true, TimeSpan.FromMinutes(5))
        .Build();

Because the role of lambda didn't have permission for read SSM for that resource.

User: is not authorized to perform: ssm:GetParametersByPath on resource

So, just add necessary permission (ssm:GetParametersByPath) for the role of lambda to your resource at System Manager.

answered Oct 26, 2022 at 17:01

VanavaraVL

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Comments

NitrusCS · Accepted Answer · 2023-02-01 20:14:05Z

0

In my case, I am using lambda serverless, so the IConfig is always null when it is passed to the controller.

I resolved it by changing the IOptions<Settings> settings in the Controller constructor to IConfiguration settings and then access the parameters by name like _settings.GetValue<string>("ParameterName")

A little less "Object Oriented", but it seemed much easier than this complex solution

answered Feb 1, 2023 at 20:14

NitrusCS

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