Resolved: Fix SSL renewal issue on Gitlab Server

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PROBLEM : I had hosted a gitlab server on Azure and it was not getting autorenewed. SOLUTION :  1. Check the current SSL cert path: sudo grep -n "ssl_certificate" /var/opt/gitlab/nginx/conf/gitlab-http.conf OR sudo grep -n "ssl_certificate" /etc/gitlab/gitlab.rb  You are likely to see something like this: nginx['ssl_certificate'] = "/etc/gitlab/ssl/gitlab.example.com.crt" nginx['ssl_certificate_key'] = "/etc/gitlab/ssl/gitlab.example.com.key"  2. In my case, I was using gitlab let'sencrypt. So, I installed certbot. sudo apt update && sudo apt install certbot -y  3. Obtain Fresh Certificate sudo gitlab-ctl stop nginx sudo certbot certonly --standalone -d gitlab.yourdomain.com sudo gitlab-ctl start nginx 4. Configure Gitlab to use new cert external_url "https://gitlab.yourdomain.com" letsencrypt['enable'] = false nginx['s...

Choosing between IConfiguration and IOptionsSnapshot in a .Net Core application

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If you are building a .Net Core api and are using appsettings and/or Azure App configuration, you might have this question in mind. Since, this is the AI era, I keep asking my queries to chatgpt or copilot or bard and use my blog as the notes for myself and for my readers:

Here is the prompt:

What is the difference between IConfiguration and IOptionsSnapshot. When I am using Azure App Configuration in a .net core api what should I use out of the two?

Let’s delve into the differences between IConfiguration and IOptionsSnapshot, especially in the context of using Azure App Configuration in a .NET Core API.

IConfiguration:

  • Purpose: IConfiguration provides access to configuration settings (such as app settings, connection strings, etc.) from various sources (e.g., JSON files, environment variables, command-line arguments).
  • Lifetime: It is a singleton service, meaning it retrieves configuration values once during application startup and caches them.
  • Use Case:
    • Suitable when you don’t expect your configuration values to change frequently.
    • Useful for reading configuration settings at application startup.
    • Not ideal for scenarios where real-time updates are crucial.

IOptionsSnapshot
  • Purpose: IOptionsSnapshot is designed for use with transient and scoped dependencies (e.g., per-request services in ASP.NET Core).
  • Lifetime: It is scoped, meaning it retrieves the most up-to-date configuration values at the time the IOptionsSnapshot<T> object is constructed.
  • Use Case:
    • Perfect when you expect configuration values to change during the lifetime of a request.
    • Provides a snapshot of the options, ensuring consistency within a single request.
    • Allows you to update settings while the application is running and immediately see the updated results.

Choosing Between Them

      • If your configuration values remain relatively static, use IConfiguration.
      • If you need real-time updates within a request scope, opt for IOptionsSnapshot.
      • In your scenario of using Azure App Configuration, consider the following:
        • If you want to read configuration settings during startup or infrequently, stick with IConfiguration.
        • If you need dynamic updates within a request, go for IOptionsSnapshot.

    Remember that both serve different purposes, and your choice depends on the specific requirements of your application.