| | | 1 | | using Microsoft.EntityFrameworkCore; |
| | | 2 | | using Microsoft.Extensions.Diagnostics.HealthChecks; |
| | | 3 | | using OzonRepositories.Context; |
| | | 4 | | |
| | | 5 | | namespace OzonOrdersWeb.Observability; |
| | | 6 | | |
| | 0 | 7 | | public sealed class ApplicationReadyHealthCheck(IServiceScopeFactory scopeFactory) : IHealthCheck |
| | | 8 | | { |
| | | 9 | | public async Task<HealthCheckResult> CheckHealthAsync( |
| | | 10 | | HealthCheckContext context, |
| | | 11 | | CancellationToken cancellationToken = default) |
| | | 12 | | { |
| | | 13 | | try |
| | | 14 | | { |
| | 0 | 15 | | await using var scope = scopeFactory.CreateAsyncScope(); |
| | 0 | 16 | | var primary = scope.ServiceProvider.GetRequiredService<ApplicationDbContext>(); |
| | 0 | 17 | | if (!await primary.Database.CanConnectAsync(cancellationToken)) |
| | | 18 | | { |
| | 0 | 19 | | return HealthCheckResult.Unhealthy("Основная база данных недоступна"); |
| | | 20 | | } |
| | | 21 | | |
| | 0 | 22 | | var ozonApi = scope.ServiceProvider.GetRequiredService<OzonApiContext>(); |
| | 0 | 23 | | var bitrix = scope.ServiceProvider.GetRequiredService<BitrixContext>(); |
| | 0 | 24 | | var optionalDependencies = new Dictionary<string, object> |
| | 0 | 25 | | { |
| | 0 | 26 | | ["OzonApiDatabase"] = await CanConnectAsync(ozonApi, cancellationToken), |
| | 0 | 27 | | ["BitrixDatabase"] = await CanConnectAsync(bitrix, cancellationToken), |
| | 0 | 28 | | ["FreeDiskBytes"] = GetFreeDiskBytes() |
| | 0 | 29 | | }; |
| | 0 | 30 | | var freeDiskBytes = (long)optionalDependencies["FreeDiskBytes"]; |
| | 0 | 31 | | if (freeDiskBytes < 1L * 1024 * 1024 * 1024) |
| | | 32 | | { |
| | 0 | 33 | | return HealthCheckResult.Unhealthy("На диске осталось менее 1 ГБ", data: optionalDependencies); |
| | | 34 | | } |
| | | 35 | | |
| | 0 | 36 | | if (optionalDependencies.Values.Take(2).OfType<bool>().Any(available => !available) |
| | 0 | 37 | | || freeDiskBytes < 5L * 1024 * 1024 * 1024) |
| | | 38 | | { |
| | 0 | 39 | | return HealthCheckResult.Degraded("Основная БД доступна, но одна из необязательных зависимостей деградир |
| | | 40 | | } |
| | | 41 | | |
| | 0 | 42 | | return HealthCheckResult.Healthy("Критичные зависимости доступны", optionalDependencies); |
| | 0 | 43 | | } |
| | 0 | 44 | | catch (Exception exception) |
| | | 45 | | { |
| | 0 | 46 | | return HealthCheckResult.Unhealthy("Ошибка проверки основной базы данных", exception); |
| | | 47 | | } |
| | 0 | 48 | | } |
| | | 49 | | |
| | | 50 | | private static async Task<bool> CanConnectAsync(DbContext db, CancellationToken cancellationToken) |
| | | 51 | | { |
| | | 52 | | try |
| | | 53 | | { |
| | 0 | 54 | | return await db.Database.CanConnectAsync(cancellationToken); |
| | | 55 | | } |
| | 0 | 56 | | catch |
| | | 57 | | { |
| | 0 | 58 | | return false; |
| | | 59 | | } |
| | 0 | 60 | | } |
| | | 61 | | |
| | | 62 | | private static long GetFreeDiskBytes() |
| | | 63 | | { |
| | 0 | 64 | | var root = Path.GetPathRoot(AppContext.BaseDirectory) ?? "/"; |
| | 0 | 65 | | return new DriveInfo(root).AvailableFreeSpace; |
| | | 66 | | } |
| | | 67 | | } |