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Merge branch 'resilience-buildingblock' into dev

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This commit is contained in:
dsanz 2017-03-31 14:58:00 +02:00
commit 54d62b8a2c
14 changed files with 204 additions and 31 deletions
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54
eShopOnContainers-ServicesAndWebApps.sln
View File

@ -84,6 +84,10 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.Extensions.Health
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WebStatus", "src\Web\WebStatus\WebStatus.csproj", "{C0A7918D-B4F2-4E7F-8DE2-1E5279EF079F}"
EndProject
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Resilience", "Resilience", "{FBF43D93-F2E7-4FF8-B4AB-186895949B88}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HttpResilience", "src\BuildingBlocks\Resilience\HttpResilience\HttpResilience.csproj", "{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Ad-Hoc|Any CPU = Ad-Hoc|Any CPU
@ -914,6 +918,54 @@ Global
{C0A7918D-B4F2-4E7F-8DE2-1E5279EF079F}.Release|x64.Build.0 = Release|Any CPU
{C0A7918D-B4F2-4E7F-8DE2-1E5279EF079F}.Release|x86.ActiveCfg = Release|Any CPU
{C0A7918D-B4F2-4E7F-8DE2-1E5279EF079F}.Release|x86.Build.0 = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|Any CPU.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|Any CPU.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|ARM.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|ARM.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|iPhone.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|iPhone.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|iPhoneSimulator.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|iPhoneSimulator.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|x64.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|x64.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|x86.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Ad-Hoc|x86.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|Any CPU.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|Any CPU.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|ARM.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|ARM.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|iPhone.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|iPhone.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|iPhoneSimulator.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|iPhoneSimulator.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|x64.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|x64.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|x86.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.AppStore|x86.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|Any CPU.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|ARM.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|ARM.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|iPhone.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|iPhone.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|x64.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|x64.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|x86.ActiveCfg = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Debug|x86.Build.0 = Debug|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|Any CPU.ActiveCfg = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|Any CPU.Build.0 = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|ARM.ActiveCfg = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|ARM.Build.0 = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|iPhone.ActiveCfg = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|iPhone.Build.0 = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|x64.ActiveCfg = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|x64.Build.0 = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|x86.ActiveCfg = Release|Any CPU
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502}.Release|x86.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
@ -947,5 +999,7 @@ Global
{942ED6E8-0050-495F-A0EA-01E97F63760C} = {A81ECBC2-6B00-4DCD-8388-469174033379}
{7804FC60-23E6-490C-8E08-F9FEF829F184} = {A81ECBC2-6B00-4DCD-8388-469174033379}
{C0A7918D-B4F2-4E7F-8DE2-1E5279EF079F} = {E279BF0F-7F66-4F3A-A3AB-2CDA66C1CD04}
{FBF43D93-F2E7-4FF8-B4AB-186895949B88} = {DB0EFB20-B024-4E5E-A75C-52143C131D25}
{D1C47FF1-91F1-4CAF-9ABB-AD642B821502} = {FBF43D93-F2E7-4FF8-B4AB-186895949B88}
EndGlobalSection
EndGlobal

14
src/BuildingBlocks/Resilience/HttpResilience/HttpResilience.csproj Normal file
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@ -0,0 +1,14 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard1.4</TargetFramework>
<RootNamespace>Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience</RootNamespace>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="1.1.0" />
<PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
<PackageReference Include="Polly" Version="5.0.6" />
</ItemGroup>
</Project>

2
src/Web/WebMVC/Services/Utilities/IHttpClient.cs → src/BuildingBlocks/Resilience/HttpResilience/IHttpClient.cs
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@ -4,7 +4,7 @@ using System.Linq;
using System.Net.Http;
using System.Threading.Tasks;
namespace WebMVC.Services.Utilities
namespace Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience
{
public interface IHttpClient
{

18
src/BuildingBlocks/Resilience/HttpResilience/Policies/CircuitBreakerPolicy.cs Normal file
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@ -0,0 +1,18 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience.Policies
{
internal class CircuitBreakerPolicy : ResilientPolicy
{
public CircuitBreakerPolicy(int exceptionsAllowedBeforeBreaking, int durationOfBreakInMinutes)
{
ExceptionsAllowedBeforeBreaking = exceptionsAllowedBeforeBreaking;
DurationOfBreakInMinutes = durationOfBreakInMinutes;
}
public int ExceptionsAllowedBeforeBreaking { get; }
public int DurationOfBreakInMinutes { get; }
}
}

20
src/BuildingBlocks/Resilience/HttpResilience/Policies/RetryPolicy.cs Normal file
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@ -0,0 +1,20 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience.Policies
{
internal class RetryPolicy : ResilientPolicy
{
public RetryPolicy(int retries, int backoffSeconds, bool exponentialBackoff)
{
Retries = retries;
BackoffSeconds = backoffSeconds;
ExponentialBackoff = exponentialBackoff;
}
public int Retries { get; }
public int BackoffSeconds { get; }
public bool ExponentialBackoff { get; }
}
}

77
src/Web/WebMVC/Services/Utilities/ResilientHttpClient.cs → src/BuildingBlocks/Resilience/HttpResilience/ResilientHttpClient.cs
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@ -1,14 +1,15 @@
using Microsoft.AspNetCore.Http;
using Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience.Policies;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using Polly;
using Polly.Wrap;
using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
namespace WebMVC.Services.Utilities
namespace Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience
{
/// <summary>
/// HttpClient wrapper that integrates Retry and Circuit
@ -20,26 +21,58 @@ namespace WebMVC.Services.Utilities
private PolicyWrap _policyWrapper;
private ILogger<ResilientHttpClient> _logger;
public HttpClient Inst => _client;
public ResilientHttpClient(ILogger<ResilientHttpClient> logger)
public ResilientHttpClient(List<Policy> policies, ILogger<ResilientHttpClient> logger)
{
_client = new HttpClient();
_logger = logger;
// Add Policies to be applied
_policyWrapper = Policy.WrapAsync(
CreateRetryPolicy(),
CreateCircuitBreakerPolicy()
);
_policyWrapper = Policy.WrapAsync(policies.ToArray());
}
private Policy CreateRetryPolicy() =>
public ResilientHttpClient(List<ResilientPolicy> policies, ILogger<ResilientHttpClient> logger)
{
_client = new HttpClient();
_logger = logger;
// Add Policies to be applied
_policyWrapper = Policy.WrapAsync(GeneratePolicies(policies));
}
private Policy[] GeneratePolicies(IList<ResilientPolicy> policies)
{
var pollyPolicies = new List<Policy>();
foreach (var policy in policies)
{
switch (policy)
{
case RetryPolicy retryPolicy:
pollyPolicies.Add(
CreateRetryPolicy(
retryPolicy.Retries,
retryPolicy.BackoffSeconds,
retryPolicy.ExponentialBackoff));
break;
case CircuitBreakerPolicy circuitPolicy:
pollyPolicies.Add(
CreateCircuitBreakerPolicy(
circuitPolicy.ExceptionsAllowedBeforeBreaking,
circuitPolicy.DurationOfBreakInMinutes));
break;
}
}
return pollyPolicies.ToArray();
}
private Policy CreateRetryPolicy(int retries, int backoffSeconds, bool exponentialBackoff) =>
Policy.Handle<HttpRequestException>()
.WaitAndRetryAsync(
// number of retries
6,
// exponential backofff
retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)),
// on retry
.WaitAndRetryAsync(
retries,
retryAttempt => exponentialBackoff ? TimeSpan.FromSeconds(Math.Pow(backoffSeconds, retryAttempt)) : TimeSpan.FromSeconds(backoffSeconds),
(exception, timeSpan, retryCount, context) =>
{
var msg = $"Retry {retryCount} implemented with Polly's RetryPolicy " +
@ -51,22 +84,20 @@ namespace WebMVC.Services.Utilities
}
);
private Policy CreateCircuitBreakerPolicy() =>
private Policy CreateCircuitBreakerPolicy(int exceptionsAllowedBeforeBreaking, int durationOfBreakInMinutes) =>
Policy.Handle<HttpRequestException>()
.CircuitBreakerAsync(
// number of exceptions before breaking circuit
5,
// time circuit opened before retry
TimeSpan.FromMinutes(1),
exceptionsAllowedBeforeBreaking,
TimeSpan.FromMinutes(durationOfBreakInMinutes),
(exception, duration) =>
{
// on circuit opened
_logger.LogTrace("Circuit breaker opened");
// on circuit opened
_logger.LogTrace("Circuit breaker opened");
},
() =>
{
// on circuit closed
_logger.LogTrace("Circuit breaker reset");
// on circuit closed
_logger.LogTrace("Circuit breaker reset");
}
);

10
src/BuildingBlocks/Resilience/HttpResilience/ResilientPolicy.cs Normal file
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@ -0,0 +1,10 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience
{
public class ResilientPolicy
{
}
}

20
src/BuildingBlocks/Resilience/HttpResilience/ResilientPolicyFactory.cs Normal file
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@ -0,0 +1,20 @@
using Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience.Policies;
using System;
using System.Collections.Generic;
using System.Text;
namespace Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience
{
public static class ResilientPolicyFactory
{
public static ResilientPolicy CreateRetryPolicy(int retries, int backoffSeconds, bool exponentialBackoff)
{
return new RetryPolicy(retries, backoffSeconds, exponentialBackoff);
}
public static ResilientPolicy CreateCiscuitBreakerPolicy(int exceptionsAllowedBeforeBreaking, int durationOfBreakInMinutes)
{
return new CircuitBreakerPolicy(exceptionsAllowedBeforeBreaking, durationOfBreakInMinutes);
}
}
}

2
src/Web/WebMVC/Services/Utilities/StandardHttpClient.cs → src/BuildingBlocks/Resilience/HttpResilience/StandardHttpClient.cs
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@ -4,7 +4,7 @@ using System;
using System.Net.Http;
using System.Threading.Tasks;
namespace WebMVC.Services.Utilities
namespace Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience
{
public class StandardHttpClient : IHttpClient
{

2
src/Web/WebMVC/Services/BasketService.cs
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@ -1,5 +1,6 @@
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Http;
using Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience;
using Microsoft.eShopOnContainers.WebMVC.ViewModels;
using Microsoft.Extensions.Options;
using Newtonsoft.Json;
@ -7,7 +8,6 @@ using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Threading.Tasks;
using WebMVC.Services.Utilities;
namespace Microsoft.eShopOnContainers.WebMVC.Services
{

2
src/Web/WebMVC/Services/CatalogService.cs
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@ -1,4 +1,5 @@
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience;
using Microsoft.eShopOnContainers.WebMVC.ViewModels;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
@ -6,7 +7,6 @@ using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Collections.Generic;
using System.Threading.Tasks;
using WebMVC.Services.Utilities;
namespace Microsoft.eShopOnContainers.WebMVC.Services
{

2
src/Web/WebMVC/Services/OrderingService.cs
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@ -8,7 +8,7 @@ using Microsoft.Extensions.Options;
using System.Net.Http;
using Newtonsoft.Json;
using Microsoft.AspNetCore.Authentication;
using WebMVC.Services.Utilities;
using Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience;
namespace Microsoft.eShopOnContainers.WebMVC.Services
{

10
src/Web/WebMVC/Startup.cs
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@ -14,8 +14,8 @@ using Microsoft.IdentityModel.Tokens;
using Microsoft.AspNetCore.Http;
using System.Threading;
using Microsoft.Extensions.Options;
using WebMVC.Services.Utilities;
using Microsoft.Extensions.HealthChecks;
using Microsoft.eShopOnContainers.BuildingBlocks.Resilience.HttpResilience;
namespace Microsoft.eShopOnContainers.WebMVC
{
@ -58,8 +58,14 @@ namespace Microsoft.eShopOnContainers.WebMVC
services.AddTransient<IBasketService, BasketService>();
services.AddTransient<IIdentityParser<ApplicationUser>, IdentityParser>();
if(Configuration.GetValue<string>("ActivateCircuitBreaker") == bool.TrueString)
if (Configuration.GetValue<string>("ActivateCircuitBreaker") == bool.TrueString)
{
services.AddSingleton(
new List<ResilientPolicy>
{
ResilientPolicyFactory.CreateRetryPolicy(6, 2, true),
ResilientPolicyFactory.CreateCiscuitBreakerPolicy(5, 1)
});
services.AddTransient<IHttpClient, ResilientHttpClient>();
}
else

2
src/Web/WebMVC/WebMVC.csproj
View File

@ -32,7 +32,6 @@
<PrivateAssets>All</PrivateAssets>
</PackageReference>
<PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
<PackageReference Include="Polly" Version="5.0.6" />
<PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="5.1.0" />
<PackageReference Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="1.1.0" />
<PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="1.1.0" />
@ -55,6 +54,7 @@
<ProjectReference Include="..\..\BuildingBlocks\HealthChecks\src\Microsoft.AspNetCore.HealthChecks\Microsoft.AspNetCore.HealthChecks.csproj" />
<ProjectReference Include="..\..\BuildingBlocks\HealthChecks\src\Microsoft.Extensions.HealthChecks.Data\Microsoft.Extensions.HealthChecks.Data.csproj" />
<ProjectReference Include="..\..\BuildingBlocks\HealthChecks\src\Microsoft.Extensions.HealthChecks\Microsoft.Extensions.HealthChecks.csproj" />
<ProjectReference Include="..\..\BuildingBlocks\Resilience\HttpResilience\HttpResilience.csproj" />
</ItemGroup>
<ItemGroup>