Updated the health endpoints (dotnet#467)

Author: davidfowl

samples/eShopLite/ServiceDefaults/Extensions.cs

@@ -100,10 +100,10 @@ public static WebApplication MapDefaultEndpoints(this WebApplication app)
         // app.MapPrometheusScrapingEndpoint();
 
         // All health checks must pass for app to be considered ready to accept traffic after starting
-        app.MapHealthChecks("/readiness");
+        app.MapHealthChecks("/health");
 
         // Only health checks tagged with the "live" tag must pass for app to be considered alive
-        app.MapHealthChecks("/liveness", new HealthCheckOptions
+        app.MapHealthChecks("/alive", new HealthCheckOptions
         {
             Predicate = r => r.Tags.Contains("live")
         });

src/Aspire.ProjectTemplates/templates/aspire-empty/AspireApplication-1.ServiceDefaults/Extensions.cs

@@ -100,10 +100,10 @@ public static WebApplication MapDefaultEndpoints(this WebApplication app)
         // app.MapPrometheusScrapingEndpoint();
 
         // All health checks must pass for app to be considered ready to accept traffic after starting
-        app.MapHealthChecks("/readiness");
+        app.MapHealthChecks("/health");
 
         // Only health checks tagged with the "live" tag must pass for app to be considered alive
-        app.MapHealthChecks("/liveness", new HealthCheckOptions
+        app.MapHealthChecks("/alive", new HealthCheckOptions
         {
             Predicate = r => r.Tags.Contains("live")
         });

src/Aspire.ProjectTemplates/templates/aspire-starter/AspireStarterApplication-1.ServiceDefaults/Extensions.cs

@@ -100,10 +100,10 @@ public static WebApplication MapDefaultEndpoints(this WebApplication app)
         // app.MapPrometheusScrapingEndpoint();
 
         // All health checks must pass for app to be considered ready to accept traffic after starting
-        app.MapHealthChecks("/readiness");
+        app.MapHealthChecks("/health");
 
         // Only health checks tagged with the "live" tag must pass for app to be considered alive
-        app.MapHealthChecks("/liveness", new HealthCheckOptions
+        app.MapHealthChecks("/alive", new HealthCheckOptions
         {
             Predicate = r => r.Tags.Contains("live")
         });