unkin-agent
95220e2ed6
The startup configuration only reads JELLYFIN_ prefixed environment variables, so the bare Jellyfin__TranscodeStore__* form used by the chart, the manifests and the README is dropped and the Redis store is never registered. Nothing logs the selected store, so the fallback is invisible. - Read bare Jellyfin__* variables into the Jellyfin:* configuration root - Keep an explicit JELLYFIN_ variable winning over the bare form - Log the selected transcode session store at startup - Ping Redis once at startup and log an unreachable store at Error - Log endpoints only, never the connection string
88 lines
3.4 KiB
C#
88 lines
3.4 KiB
C#
using System;
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using System.Linq;
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using Emby.Server.Implementations.MediaEncoding;
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using MediaBrowser.Controller.MediaEncoding;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging;
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using StackExchange.Redis;
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namespace Jellyfin.Server.Extensions;
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/// <summary>
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/// Extensions for registering the transcode session store.
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/// </summary>
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public static class TranscodeStoreServiceCollectionExtensions
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{
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/// <summary>
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/// Registers the transcode session store, Redis-backed when a connection string is configured and
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/// no-op otherwise, and reports the selected store at <see cref="LogLevel.Information"/>.
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/// </summary>
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/// <param name="serviceCollection">The service collection.</param>
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/// <param name="configuration">The configuration to read <c>Jellyfin:TranscodeStore</c> from.</param>
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/// <param name="logger">The logger to report the selected store on.</param>
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/// <returns>The updated service collection.</returns>
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public static IServiceCollection AddTranscodeSessionStore(
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this IServiceCollection serviceCollection,
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IConfiguration configuration,
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ILogger logger)
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{
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ArgumentNullException.ThrowIfNull(configuration);
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ArgumentNullException.ThrowIfNull(logger);
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serviceCollection.Configure<TranscodeStoreOptions>(configuration.GetSection(TranscodeStoreOptions.ConfigurationSection));
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var redisConnectionString = configuration[TranscodeStoreOptions.RedisConnectionStringKey];
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if (string.IsNullOrEmpty(redisConnectionString))
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{
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logger.LogInformation(
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"Transcode session store: {Store}. Cross-pod transcode takeover is off; set {Key} to enable it.",
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nameof(NullTranscodeSessionStore),
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TranscodeStoreOptions.RedisConnectionStringKey);
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return serviceCollection.AddSingleton<ITranscodeSessionStore, NullTranscodeSessionStore>();
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}
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logger.LogInformation(
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"Transcode session store: {Store} on {Endpoints}.",
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nameof(RedisTranscodeSessionStore),
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DescribeEndpoints(redisConnectionString));
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serviceCollection.AddSingleton<IConnectionMultiplexer>(sp =>
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{
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try
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{
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return ConnectionMultiplexer.Connect(redisConnectionString);
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}
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catch (Exception ex)
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{
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sp.GetRequiredService<ILogger<CoreAppHost>>()
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.LogError(ex, "Failed to connect to Redis. Check the {Key} configuration.", TranscodeStoreOptions.RedisConnectionStringKey);
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throw;
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}
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});
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serviceCollection.AddSingleton<ITranscodeSessionStore, RedisTranscodeSessionStore>();
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serviceCollection.AddHostedService<TranscodeStoreConnectivityProbe>();
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return serviceCollection;
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}
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/// <summary>
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/// Renders the endpoints of a connection string for logging. The connection string itself is never
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/// logged because it can carry a password.
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/// </summary>
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private static string DescribeEndpoints(string redisConnectionString)
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{
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try
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{
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return string.Join(
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',',
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ConfigurationOptions.Parse(redisConnectionString).EndPoints.Select(endpoint => endpoint.ToString()));
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}
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catch (ArgumentException)
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{
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return "(unparsable connection string)";
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}
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}
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}
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