docker - System.Net.Http.HttpRequestException:连接被拒绝
问题描述
我的 APIEndToEndTests
位于两个不同的容器中,当我构建 docker-compose.yml 时,出现连接被拒绝异常。
失败的
PagingSystem.MessageQueue.EndToEndTests.Test.ValueControllerTest.Get_AllValues_ReturnsTrue
| Error Message:
| System.Net.Http.HttpRequestException : Connection refused
| ---- System.Net.Sockets.SocketException : Connection refused
| Stack Trace:
| at System.Net.Http.ConnectHelper.ConnectAsync(String host, Int32 port, CancellationToken cancellationToken)
| at System.Threading.Tasks.ValueTask1.get_Result()
| at System.Net.Http.HttpConnectionPool.CreateConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken)
| at System.Threading.Tasks.ValueTask1.get_Result()
下面是我的 docker(API 和 End2End)、docker-compose.yml 和 appsetting.json 文件:
API 码头工人
FROM microsoft/dotnet:2.1-aspnetcore-runtime AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443
FROM microsoft/dotnet:2.1-sdk AS build
WORKDIR /src
COPY Source/PagingSystem.MessageQueue/PagingSystem.MessageQueue.csproj Source/PagingSystem.MessageQueue/
RUN dotnet restore Source/PagingSystem.MessageQueue/PagingSystem.MessageQueue.csproj
COPY . .
WORKDIR /src/Source/PagingSystem.MessageQueue
RUN dotnet build PagingSystem.MessageQueue.csproj -c Release -o /app
FROM build AS publish
RUN dotnet publish PagingSystem.MessageQueue.csproj -c Release -o /app
FROM base AS final
WORKDIR /app
COPY --from=publish /app .
ENTRYPOINT ["dotnet", "PagingSystem.MessageQueue.dll"]
End2End 测试泊坞窗
FROM microsoft/dotnet:2.1.301-sdk AS build
EXPOSE 80
EXPOSE 443
WORKDIR /src
# copying
COPY Source/PagingSystem.MessageQueue/PagingSystem.MessageQueue.csproj Source/PagingSystem.MessageQueue/
COPY Tests/PagingSystem.MessageQueue.EndToEndTests/PagingSystem.MessageQueue.EndToEndTests.csproj Tests/PagingSystem.MessageQueue.EndToEndTests/
COPY Tests/PagingSystem.MessageQueue.UnitTests/PagingSystem.MessageQueue.UnitTests.csproj Tests/PagingSystem.MessageQueue.UnitTests/
#restore
RUN dotnet restore Source/PagingSystem.MessageQueue/PagingSystem.MessageQueue.csproj
RUN dotnet restore Tests/PagingSystem.MessageQueue.EndToEndTests/PagingSystem.MessageQueue.EndToEndTests.csproj
RUN dotnet restore Tests/PagingSystem.MessageQueue.UnitTests/PagingSystem.MessageQueue.UnitTests.csproj
#copy rest
COPY . .
#build
WORKDIR /src/Tests/PagingSystem.MessageQueue.EndToEndTests
RUN dotnet build -c Release -o /app
CMD ["sh", "-c", "sleep 1m && dotnet test -c Release -o /app"]
码头工人-compose.yml
version: '3.4'
services:
pagingsystem.messagequeue:
container_name: pagingsystem-messagequeue-container
image: pagingsystemmessagequeue
build:
context: .
dockerfile: Source/PagingSystem.MessageQueue/Dockerfile
ports:
- 5000:80
- 5002:443
networks:
- xyz-network
pagingsystem.messagequeue.endtoendtest:
container_name: e2e-test-container
image: pagingsystem.messagequeueendtoendtest
ports:
- 5011:80
- 5003:443
build:
context: .
dockerfile: Tests/PagingSystem.MessageQueue.EndToEndTests/Dockerfile
networks:
- xyz-network
networks:
xyz-network:
driver: "bridge"
appsetting.json
{
"MessageQueueApi": {
"Url": "http://pagingsystem-messagequeue-container:5000/"
}
BaseTest.cs:
public class BaseTest : IDisposable
{
public BaseTest()
{
var appSettings = AppSettings.Current;
var httpClientHandler = new HttpClientHandler()
{
AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate,
};
this.HttpClient = new HttpClient(httpClientHandler)
{
BaseAddress = appSettings.MessageQueueApi.Url,
};
Console.WriteLine("<---API URL is --->" + appSettings.MessageQueueApi.Url);
Console.WriteLine("---Base address");
Console.WriteLine(this.HttpClient.BaseAddress);
}
public HttpClient HttpClient { get; set; }
public List<string> AllValues { get; set; }
public void Dispose() => this.HttpClient.Dispose();
protected async Task GetAllValues()
{
Console.WriteLine("----in get all values---");
var response = await this.HttpClient.GetAsync("api/values");
response.StatusCode.ShouldBe(HttpStatusCode.OK);
}
protected Task<HttpResponseMessage> ClearCache() =>
this.HttpClient.PostAsJsonAsync("cache/clear", string.Empty);
}
解决方案
您与HOST_PORT
和不匹配CONTAINER_PORT
。
对于5000:80
,5000
是HOST_PORT
,80
是CONTAINER_PORT
. 从容器访问容器时,网络服务到服务通信使用CONTAINER_PORT
.
尝试更改"Url": "http://pagingsystem-messagequeue-container:5000/"
为"Url": "http://pagingsystem-messagequeue-container:80/"
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