Increase ShutdownTimeout from 5 sec to 30 sec

server/Tingle.Dependabot/Program.cs

@@ -12,6 +12,21 @@
 
 var builder = WebApplication.CreateBuilder(args);
 
+builder.Services.Configure<HostOptions>(options =>
+{
+    /*
+     * The shutdown timer is extended to background tasks (mostly IHostedService) time to close down gracefully
+     * Andrew Lock explains it in 2 of his posts
+     * 
+     * https://andrewlock.net/extending-the-shutdown-timeout-setting-to-ensure-graceful-ihostedservice-shutdown/
+     * https://andrewlock.net/deploying-asp-net-core-applications-to-kubernetes-part-11-avoiding-downtime-in-rolling-deployments-by-blocking-sigterm/
+     * 
+     * The default is 5 seconds but in our case 30 seconds is sufficient and matches the Kubernetes default.
+     * This should be enough for the services running like the EventBus or incoming HTTP requests to complete processing.
+     */
+    options.ShutdownTimeout = TimeSpan.FromSeconds(30);
+});
+
 builder.Services.AddApplicationInsightsTelemetry(builder.Configuration);
 
 // Add DbContext