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hacked together load balancing reroutes in fileconfig (#211)

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* hacked together load balancing reroutes in fileconfig

* some renaming and refactoring

* more renames

* hacked away the old config json

* test for issue 213

* renamed key

* dont share ports

* oops

* updated docs

* mvoed docs around

* port being used
This commit is contained in:
Tom Pallister
2018-01-31 20:34:55 +00:00
committed by GitHub
parent f572d1b0ca
commit 3ac9b3bd87
440 changed files with 29740 additions and 28464 deletions
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432
test/Ocelot.AcceptanceTests/QoSTests.cs
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@ -1,207 +1,225 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Ocelot.Configuration.File;
using TestStack.BDDfy;
using Xunit;
namespace Ocelot.AcceptanceTests
{
public class QoSTests : IDisposable
{
private IWebHost _brokenService;
private readonly Steps _steps;
private int _requestCount;
private IWebHost _workingService;
public QoSTests()
{
_steps = new Steps();
}
[Fact]
public void should_open_circuit_breaker_then_close()
{
var configuration = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamScheme = "http",
DownstreamHost = "localhost",
DownstreamPort = 51879,
UpstreamPathTemplate = "/",
UpstreamHttpMethod = new List<string> { "Get" },
QoSOptions = new FileQoSOptions
{
ExceptionsAllowedBeforeBreaking = 1,
TimeoutValue = 500,
DurationOfBreak = 1000
},
}
}
};
this.Given(x => x.GivenThereIsAPossiblyBrokenServiceRunningOn("http://localhost:51879", "Hello from Laura"))
.Given(x => _steps.GivenThereIsAConfiguration(configuration))
.Given(x => _steps.GivenOcelotIsRunning())
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.Given(x => x.GivenIWaitMilliseconds(3000))
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.BDDfy();
}
[Fact]
public void open_circuit_should_not_effect_different_reRoute()
{
var configuration = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamScheme = "http",
DownstreamHost = "localhost",
DownstreamPort = 51879,
UpstreamPathTemplate = "/",
UpstreamHttpMethod = new List<string> { "Get" },
QoSOptions = new FileQoSOptions
{
ExceptionsAllowedBeforeBreaking = 1,
TimeoutValue = 500,
DurationOfBreak = 1000
}
},
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamScheme = "http",
DownstreamHost = "localhost",
DownstreamPort = 51880,
UpstreamPathTemplate = "/working",
UpstreamHttpMethod = new List<string> { "Get" },
}
}
};
this.Given(x => x.GivenThereIsAPossiblyBrokenServiceRunningOn("http://localhost:51879", "Hello from Laura"))
.And(x => x.GivenThereIsAServiceRunningOn("http://localhost:51880/", 200, "Hello from Tom"))
.And(x => _steps.GivenThereIsAConfiguration(configuration))
.And(x => _steps.GivenOcelotIsRunning())
.And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.And(x => _steps.WhenIGetUrlOnTheApiGateway("/working"))
.And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Tom"))
.And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.And(x => x.GivenIWaitMilliseconds(3000))
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.BDDfy();
}
private void GivenIWaitMilliseconds(int ms)
{
Thread.Sleep(ms);
}
private void GivenThereIsAPossiblyBrokenServiceRunningOn(string url, string responseBody)
{
_brokenService = new WebHostBuilder()
.UseUrls(url)
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.UseIISIntegration()
.UseUrls(url)
.Configure(app =>
{
app.Run(async context =>
{
//circuit starts closed
if (_requestCount == 0)
{
_requestCount++;
context.Response.StatusCode = 200;
await context.Response.WriteAsync(responseBody);
return;
}
//request one times out and polly throws exception, circuit opens
if (_requestCount == 1)
{
_requestCount++;
await Task.Delay(1000);
context.Response.StatusCode = 200;
return;
}
//after break closes we return 200 OK
if (_requestCount == 2)
{
context.Response.StatusCode = 200;
await context.Response.WriteAsync(responseBody);
return;
}
});
})
.Build();
_brokenService.Start();
}
private void GivenThereIsAServiceRunningOn(string url, int statusCode, string responseBody)
{
_workingService = new WebHostBuilder()
.UseUrls(url)
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.UseIISIntegration()
.UseUrls(url)
.Configure(app =>
{
app.Run(async context =>
{
context.Response.StatusCode = statusCode;
await context.Response.WriteAsync(responseBody);
});
})
.Build();
_workingService.Start();
}
public void Dispose()
{
_workingService?.Dispose();
_brokenService?.Dispose();
_steps.Dispose();
}
}
}
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Ocelot.Configuration.File;
using TestStack.BDDfy;
using Xunit;
namespace Ocelot.AcceptanceTests
{
public class QoSTests : IDisposable
{
private IWebHost _brokenService;
private readonly Steps _steps;
private int _requestCount;
private IWebHost _workingService;
public QoSTests()
{
_steps = new Steps();
}
[Fact]
public void should_open_circuit_breaker_then_close()
{
var configuration = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamScheme = "http",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = 51879,
}
},
UpstreamPathTemplate = "/",
UpstreamHttpMethod = new List<string> { "Get" },
QoSOptions = new FileQoSOptions
{
ExceptionsAllowedBeforeBreaking = 1,
TimeoutValue = 500,
DurationOfBreak = 1000
},
}
}
};
this.Given(x => x.GivenThereIsAPossiblyBrokenServiceRunningOn("http://localhost:51879", "Hello from Laura"))
.Given(x => _steps.GivenThereIsAConfiguration(configuration))
.Given(x => _steps.GivenOcelotIsRunning())
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.Given(x => x.GivenIWaitMilliseconds(3000))
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.BDDfy();
}
[Fact]
public void open_circuit_should_not_effect_different_reRoute()
{
var configuration = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamScheme = "http",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = 51879,
}
},
UpstreamPathTemplate = "/",
UpstreamHttpMethod = new List<string> { "Get" },
QoSOptions = new FileQoSOptions
{
ExceptionsAllowedBeforeBreaking = 1,
TimeoutValue = 500,
DurationOfBreak = 1000
}
},
new FileReRoute
{
DownstreamPathTemplate = "/",
DownstreamScheme = "http",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = 51880,
}
},
UpstreamPathTemplate = "/working",
UpstreamHttpMethod = new List<string> { "Get" },
}
}
};
this.Given(x => x.GivenThereIsAPossiblyBrokenServiceRunningOn("http://localhost:51879", "Hello from Laura"))
.And(x => x.GivenThereIsAServiceRunningOn("http://localhost:51880/", 200, "Hello from Tom"))
.And(x => _steps.GivenThereIsAConfiguration(configuration))
.And(x => _steps.GivenOcelotIsRunning())
.And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.And(x => _steps.WhenIGetUrlOnTheApiGateway("/working"))
.And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Tom"))
.And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.And(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.And(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.ServiceUnavailable))
.And(x => x.GivenIWaitMilliseconds(3000))
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.BDDfy();
}
private void GivenIWaitMilliseconds(int ms)
{
Thread.Sleep(ms);
}
private void GivenThereIsAPossiblyBrokenServiceRunningOn(string url, string responseBody)
{
_brokenService = new WebHostBuilder()
.UseUrls(url)
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.UseIISIntegration()
.UseUrls(url)
.Configure(app =>
{
app.Run(async context =>
{
//circuit starts closed
if (_requestCount == 0)
{
_requestCount++;
context.Response.StatusCode = 200;
await context.Response.WriteAsync(responseBody);
return;
}
//request one times out and polly throws exception, circuit opens
if (_requestCount == 1)
{
_requestCount++;
await Task.Delay(1000);
context.Response.StatusCode = 200;
return;
}
//after break closes we return 200 OK
if (_requestCount == 2)
{
context.Response.StatusCode = 200;
await context.Response.WriteAsync(responseBody);
return;
}
});
})
.Build();
_brokenService.Start();
}
private void GivenThereIsAServiceRunningOn(string url, int statusCode, string responseBody)
{
_workingService = new WebHostBuilder()
.UseUrls(url)
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.UseIISIntegration()
.UseUrls(url)
.Configure(app =>
{
app.Run(async context =>
{
context.Response.StatusCode = statusCode;
await context.Response.WriteAsync(responseBody);
});
})
.Build();
_workingService.Start();
}
public void Dispose()
{
_workingService?.Dispose();
_brokenService?.Dispose();
_steps.Dispose();
}
}
}