Emby docker版无法连接到tmdb，但套件版可以正常刮削

系统：DSM 7.1.1-42962 Update 1
网络情况：tmdb相关api地址可直连
在元数据下载器只选择tmdb的情况下：
套件版无需修改hosts或代理可直接刮削到元数据和图片；
docker版（无论是官方镜像还是lovechen的镜像）无论是直连、修改hosts还是挂代理都无法连接到TMDB；日志如下：

1. 2022-12-13 08:31:23.051 Info HttpClient: GET https://api.themoviedb.org/3/configuration?api_key=x_secret1_x
   
2. 2022-12-13 08:31:43.053 Error HttpClient: Connection to https://api.themoviedb.org/3/configuration?api_key=f6bd687ffa63cd282b6ff2c6877f2669 timed out
   
3. 2022-12-13 08:31:43.060 Error App: Error in TheMovieDb
   
4.         *** Error Report ***
   
5.         Version: 4.7.10.0
   
6.         Command line: /system/EmbyServer.dll -programdata /config -ffdetect /bin/ffdetect -ffmpeg /bin/ffmpeg -ffprobe /bin/ffprobe -restartexitcode 3
   
7.         Operating system: Linux version 4.4.180+ (root@build15) (gcc version 8.5.0 (GCC) ) #42962 SMP Wed Sep 21 10:56:47 CST 2022
   
8.         Framework: .NET 6.0.8
   
9.         OS/Process: x64/x64
   
10.         Runtime: system/System.Private.CoreLib.dll
    
11.         Processor count: 4
    
12.         Data path: /config
    
13.         Application path: /system
    
14.         MediaBrowser.Model.Net.HttpException: MediaBrowser.Model.Net.HttpException: Connection to https://api.themoviedb.org/3/configuration?api_key=f6bd687ffa63cd282b6ff2c6877f2669 timed out
    
15.          ---> System.Threading.Tasks.TaskCanceledException: The request was canceled due to the configured HttpClient.Timeout of 20 seconds elapsing.
    
16.          ---> System.TimeoutException: A task was canceled.
    
17.          ---> System.Threading.Tasks.TaskCanceledException: A task was canceled.
    
18.            at System.Threading.Tasks.TaskCompletionSourceWithCancellation`1.WaitWithCancellationAsync(CancellationToken cancellationToken)
    
19.            at System.Net.Http.HttpConnectionPool.GetHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
    
20.            at System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
    
21.            at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
    
22.            at System.Net.Http.DecompressionHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
    
23.            at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
    
24.            --- End of inner exception stack trace ---
    
25.            --- End of inner exception stack trace ---
    
26.            at System.Net.Http.HttpClient.HandleFailure(Exception e, Boolean telemetryStarted, HttpResponseMessage response, CancellationTokenSource cts, CancellationToken cancellationToken, CancellationTokenSource pendingRequestsCts)
    
27.            at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
    
28.            at Emby.Server.Implementations.HttpClientManager.CoreHttpClientManager.
    (HttpRequestOptions , String )
    
29.            --- End of inner exception stack trace ---
    
30.            at Emby.Server.Implementations.HttpClientManager.CoreHttpClientManager.
    (HttpRequestOptions , String )
    
31.            at Emby.Server.Implementations.HttpClientManager.CoreHttpClientManager.SendAsync(HttpRequestOptions options, String httpMethod)
    
32.            at MovieDb.MovieDbProvider.GetMovieDbResponse(HttpRequestOptions options)
    
33.            at MovieDb.MovieDbProvider.GetTmdbSettings(CancellationToken cancellationToken)
    
34.            at MovieDb.MovieDbSearch.GetSearchResults(ItemLookupInfo idInfo, String searchType, CancellationToken cancellationToken)
    
35.            at MovieDb.GenericMovieDbInfo`1.GetMetadata(ItemLookupInfo itemId, CancellationToken cancellationToken)
    
36.            at Emby.Providers.Manager.MetadataService`2.ExecuteRemoteProviders(MetadataResult`1 temp, LibraryOptions libraryOptions, String logName, TIdType id, IEnumerable`1 providers, MetadataRefreshOptions options, CancellationToken cancellationToken)
    
37.         Source: Emby.Server.Implementations
    
38.         TargetSite: Void
    ()
    
39.         InnerException: System.Threading.Tasks.TaskCanceledException: The request was canceled due to the configured HttpClient.Timeout of 20 seconds elapsing.
    
40.         Source: System.Net.Http
    
41.         TargetSite: Void HandleFailure(System.Exception, Boolean, System.Net.Http.HttpResponseMessage, System.Threading.CancellationTokenSource, System.Threading.CancellationToken, System.Threading.CancellationTokenSource)
    
42.            at System.Net.Http.HttpClient.HandleFailure(Exception e, Boolean telemetryStarted, HttpResponseMessage response, CancellationTokenSource cts, CancellationToken cancellationToken, CancellationTokenSource pendingRequestsCts)
    
43.            at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
    
44.            at Emby.Server.Implementations.HttpClientManager.CoreHttpClientManager.
    (HttpRequestOptions , String )
    
45.         InnerException: System.TimeoutException: A task was canceled.
    
46.         Source:
    
47.         TargetSite:
    
48.         InnerException: System.Threading.Tasks.TaskCanceledException: A task was canceled.
    
49.         Source: System.Private.CoreLib
    
50.         TargetSite: Void ThrowForNonSuccess(System.Threading.Tasks.Task)
    
51.            at System.Threading.Tasks.TaskCompletionSourceWithCancellation`1.WaitWithCancellationAsync(CancellationToken cancellationToken)
    
52.            at System.Net.Http.HttpConnectionPool.GetHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
    
53.            at System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
    
54.            at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
    
55.            at System.Net.Http.DecompressionHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
    
56.            at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)

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日志第二行：

1. 2022-12-13 08:31:43.053 Error HttpClient: Connection to https://api.themoviedb.org/3/configuration?api_key=<token> timed out
   
2. 2022-12-13 08:31:43.060 Error App: Error in TheMovieDb

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说明docker容器无法访问到这个地址，连接超时。

你可以给容器设置两个环境变量，来指定代理。
http_proxy=http://<Your Proxy>:<port>
https_proxy=http://<Your Proxy>:<port>
然后重启容器。