Cesar De la Torre fa541444c7 Fixed bug in HealthChecks so the Catalog.API microservice checks the SQL database.
Also, added more UrlChecks to the MVC app so it checks all its dependencies.
Plus minor bugs/missing code in docker-compose.pro.yml that was evolved in the .override.yml
2017-03-30 18:25:19 -07:00

162 lines
6.5 KiB
C#

namespace Microsoft.eShopOnContainers.Services.Catalog.API
{
using global::Catalog.API.Infrastructure.Filters;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
using Microsoft.eShopOnContainers.BuildingBlocks.EventBusRabbitMQ;
using Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF;
using Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF.Services;
using Microsoft.eShopOnContainers.Services.Catalog.API.Infrastructure;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.HealthChecks;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using System;
using System.Data.SqlClient;
using System.IO;
using System.Data.Common;
using System.Reflection;
using System.Threading.Tasks;
public class Startup
{
public IConfigurationRoot Configuration { get; }
public Startup(IHostingEnvironment env)
{
var builder = new ConfigurationBuilder()
.SetBasePath(env.ContentRootPath)
.AddJsonFile($"settings.json", optional: false, reloadOnChange: true)
.AddJsonFile($"settings.{env.EnvironmentName}.json", optional: true);
if (env.IsDevelopment())
{
builder.AddUserSecrets(typeof(Startup).GetTypeInfo().Assembly);
}
builder.AddEnvironmentVariables();
Configuration = builder.Build();
}
public void ConfigureServices(IServiceCollection services)
{
// Add framework services.
services.AddHealthChecks(checks =>
{
checks.AddSqlCheck("Catalog_Db", Configuration["ConnectionString"]);
});
services.AddMvc(options =>
{
options.Filters.Add(typeof(HttpGlobalExceptionFilter));
}).AddControllersAsServices();
services.AddDbContext<CatalogContext>(options =>
{
options.UseSqlServer(Configuration["ConnectionString"],
sqlServerOptionsAction: sqlOptions =>
{
sqlOptions.MigrationsAssembly(typeof(Startup).GetTypeInfo().Assembly.GetName().Name);
//Configuring Connection Resiliency: https://docs.microsoft.com/en-us/ef/core/miscellaneous/connection-resiliency
sqlOptions.EnableRetryOnFailure(maxRetryCount: 5, maxRetryDelay: TimeSpan.FromSeconds(30), errorNumbersToAdd: null);
});
// Changing default behavior when client evaluation occurs to throw.
// Default in EF Core would be to log a warning when client evaluation is performed.
options.ConfigureWarnings(warnings => warnings.Throw(RelationalEventId.QueryClientEvaluationWarning));
//Check Client vs. Server evaluation: https://docs.microsoft.com/en-us/ef/core/querying/client-eval
});
services.Configure<Settings>(Configuration);
// Add framework services.
services.AddSwaggerGen();
services.ConfigureSwaggerGen(options =>
{
options.DescribeAllEnumsAsStrings();
options.SingleApiVersion(new Swashbuckle.Swagger.Model.Info()
{
Title = "eShopOnContainers - Catalog HTTP API",
Version = "v1",
Description = "The Catalog Microservice HTTP API. This is a Data-Driven/CRUD microservice sample",
TermsOfService = "Terms Of Service"
});
});
services.AddCors(options =>
{
options.AddPolicy("CorsPolicy",
builder => builder.AllowAnyOrigin()
.AllowAnyMethod()
.AllowAnyHeader()
.AllowCredentials());
});
services.AddTransient<Func<DbConnection, IIntegrationEventLogService>>(
sp => (DbConnection c) => new IntegrationEventLogService(c));
var serviceProvider = services.BuildServiceProvider();
var configuration = serviceProvider.GetRequiredService<IOptionsSnapshot<Settings>>().Value;
services.AddSingleton<IEventBus>(new EventBusRabbitMQ(configuration.EventBusConnection));
}
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
//Configure logs
loggerFactory.AddConsole(Configuration.GetSection("Logging"));
loggerFactory.AddDebug();
app.UseCors("CorsPolicy");
app.UseMvcWithDefaultRoute();
app.UseSwagger()
.UseSwaggerUi();
var context = (CatalogContext)app
.ApplicationServices.GetService(typeof(CatalogContext));
WaitForSqlAvailability(context, loggerFactory);
//Seed Data
CatalogContextSeed.SeedAsync(app, loggerFactory)
.Wait();
var integrationEventLogContext = new IntegrationEventLogContext(
new DbContextOptionsBuilder<IntegrationEventLogContext>()
.UseSqlServer(Configuration["ConnectionString"], b => b.MigrationsAssembly("Catalog.API"))
.Options);
integrationEventLogContext.Database.Migrate();
}
private void WaitForSqlAvailability(CatalogContext ctx, ILoggerFactory loggerFactory, int? retry = 0)
{
int retryForAvailability = retry.Value;
try
{
ctx.Database.OpenConnection();
}
catch(SqlException ex)
{
if (retryForAvailability < 10)
{
retryForAvailability++;
var log = loggerFactory.CreateLogger(nameof(Startup));
log.LogError(ex.Message);
WaitForSqlAvailability(ctx, loggerFactory, retryForAvailability);
}
}
finally {
ctx.Database.CloseConnection();
}
}
}
}