public void ServiceEndpointBuildingCanBeCustomized()
{
var source = new ConsulConfigurationSource()
.UseCache(new InMemoryEmergencyCache())
.MapService("myservice1", "serviceEndpoints:v1:myservice", EndpointFormatters.Http, NodeSelectors.First);
var consulState = new ConsulState();
consulState = consulState.UpdateService(new Service
{
Name = "myservice1",
Nodes = new[]
{
new ServiceNode
{
Address = "myaddress",
Port = 80
},
}
});
var configProvider = _consul.LoadConfigProvider(source, consulState);
string serviceEndpoint;
configProvider.TryGet("serviceEndpoints:v1:myservice", out serviceEndpoint).Should().BeTrue();
serviceEndpoint.Should().Be("http://myaddress:80");
}
public void Render(string templatePath, TextWriter writer, ConsulState model, PropertyBag properties = null)
{
var metadata = GetTemplateMetadata(templatePath);
var instance = CreateTemplateInstance(metadata.FullTypeName, templatePath);
instance.Render(writer, model, this, properties);
}
public void Render(TextWriter writer, ConsulState model, ITemplateRenderer renderer, PropertyBag properties)
{
Writer = writer;
Model = model;
Renderer = renderer;
Properties = properties ?? new PropertyBag();
ExecuteAsync().GetAwaiter().GetResult();
}
public void IndividualKeyBeRetrievedViaMappedConfigKey()
{
var source = new ConsulConfigurationSource()
.UseCache(new InMemoryEmergencyCache())
.MapKey("apps/myapp/myfeature", "consul:afeature");
var consulState = new ConsulState();
consulState = consulState.UpdateKVNode(new KeyValueNode("apps/myapp/myfeature", "myvalue"));
var configProvider = _consul.LoadConfigProvider(source, consulState);
VerifyConfigKey(configProvider, "consul:afeature", "myvalue");
}
public async Task LoadAsync()
{
var eventContext = new EventContext("ConsulRx.Configuration", "Load");
try
{
_consulState = await _consulClient.GetDependenciesAsync(_dependencies).ConfigureAwait(false);
UpdateData();
eventContext["LoadedFrom"] = "Consul";
}
catch (Exception exception)
{
eventContext.IncludeException(exception);
if (_emergencyCache.TryLoad(out var cachedData))
{
eventContext["LoadedFrom"] = "EmergencyCache";
Data = cachedData;
}
else
{
eventContext["LoadedFrom"] = "UnableToLoad";
throw new ConsulRxConfigurationException("Unable to load configuration from consul. It is likely down or the endpoint is misconfigured. Please check the InnerException for details.", exception);
}
}
finally
{
eventContext.Dispose();
}
if (_autoUpdate)
{
_consulClient.ObserveDependencies(_dependencies).DelayedRetry(_consulClient.Configuration.RetryDelay ?? TimeSpan.Zero).Subscribe(updatedState =>
{
using (var reloadEventContext = new EventContext("ConsulRx.Configuration", "Reload"))
{
try
{
_consulState = updatedState;
UpdateData();
OnReload();
}
catch (Exception ex)
{
reloadEventContext.IncludeException(ex);
}
}
});
}
}
public ConsulDependencies AnalyzeDependencies(PropertyBag properties, ITemplateRenderer renderer)
{
AnalysisMode = true;
try
{
Dependencies = new ConsulDependencies();
Model = new ConsulState();
Properties = properties ?? new PropertyBag();
Renderer = renderer;
ExecuteAsync().GetAwaiter().GetResult();
return(Dependencies);
}
finally
{
AnalysisMode = false;
}
}
public void NoRegisteredNodesThrowsWhenUsingFirstNodeSelector()
{
Assert.Throws <ConsulRxConfigurationException>(() =>
{
var source = new ConsulConfigurationSource()
.UseCache(new InMemoryEmergencyCache())
.MapService("missingservice", "serviceEndpoints:v1:myservice", EndpointFormatters.Http, NodeSelectors.First);
var consulState = new ConsulState();
consulState = consulState.UpdateService(new Service
{
Name = "missingservice",
Nodes = new ServiceNode[0]
});
var configProvider = _consul.LoadConfigProvider(source, consulState);
});
}
public Task Start(CancellationToken cancellationToken = default(CancellationToken))
{
var completionSource = new TaskCompletionSource <object>();
var consulDependencies = _renderer.AnalyzeDependencies(TemplatePath, Properties);
var subscription = _client.ObserveDependencies(consulDependencies).Subscribe(consulState =>
{
ConsulState = consulState;
RenderTemplate();
}, onError: exception =>
{
completionSource.SetException(exception);
}, onCompleted: () =>
{
completionSource.SetResult(null);
});
cancellationToken.Register(() => subscription.Dispose());
return(completionSource.Task);
}
public void TreeOfKeysBeRetrievedViaMappedConfigPrefix()
{
var source = new ConsulConfigurationSource()
.UseCache(new InMemoryEmergencyCache())
.MapKeyPrefix("apps/myapp", "consul");
var consulState = new ConsulState();
consulState = consulState.UpdateKVNodes(new[]
{
new KeyValueNode("apps/myapp/folder1/item1", "value1"),
new KeyValueNode("apps/myapp/folder1/item2", "value2"),
new KeyValueNode("apps/myapp/folder2/item1", "value3")
});
var configProvider = _consul.LoadConfigProvider(source, consulState);
VerifyConfigKey(configProvider, "consul:folder1:item1", "value1");
VerifyConfigKey(configProvider, "consul:folder1:item2", "value2");
VerifyConfigKey(configProvider, "consul:folder2:item1", "value3");
}
public void ConfigurationKeysBeRetrievedViaMappedConfigPrefix()
{
var source = new ConsulConfigurationSource()
.UseCache(new InMemoryEmergencyCache())
.MapConfigurationKey("apps/myapp/myconfig", "consulConf");
var json = @"{""key1"":""value1"",""key2"": {
""key3"": {
""key4"": ""val4"",
""key5"": ""val5""
}
},}";
var consulState = new ConsulState();
consulState = consulState.UpdateKVNode(new KeyValueNode("apps/myapp/myconfig", json));
var configProvider = _consul.LoadConfigProvider(source, consulState);
VerifyConfigKey(configProvider, "consulConf", json);
}
public void ServiceEndpointsCanBeACollection()
{
var source = new ConsulConfigurationSource()
.UseCache(new InMemoryEmergencyCache())
.MapService("myservice1", "serviceEndpoints:v1:myservice", EndpointFormatters.AddressAndPort, NodeSelectors.All);
var consulState = new ConsulState();
consulState = consulState.UpdateService(new Service
{
Name = "myservice1",
Nodes = new[]
{
new ServiceNode
{
Address = "myaddress",
Port = 80
},
new ServiceNode
{
Address = "anotheraddress",
Port = 8080
}
}
});
var configProvider = _consul.LoadConfigProvider(source, consulState);
string serviceEndpoint;
configProvider.TryGet("serviceEndpoints:v1:myservice:0", out serviceEndpoint).Should().BeTrue();
serviceEndpoint.Should().Be("myaddress:80");
configProvider.TryGet("serviceEndpoints:v1:myservice:1", out serviceEndpoint).Should().BeTrue();
serviceEndpoint.Should().Be("anotheraddress:8080");
}
public static IConfigurationProvider LoadConfigProvider(this FakeObservableConsul consul, ConsulConfigurationSource configSource, ConsulState consulState = null)
{
var configProvider = (ConsulConfigurationProvider)configSource.Build(consul);
if (consulState != null)
{
consul.CurrentState = consulState;
}
Task.WhenAll(configProvider.LoadAsync(), Task.Run(() =>
{
consul.DependencyObservations.OnNext(consulState);
})).GetAwaiter().GetResult();
return(configProvider);
}
public void RenderPartial(string name, string parentTemplatePath, TextWriter writer, ConsulState model, PropertyBag properties)
{
var templatePath = ResolvePartial(name, parentTemplatePath);
Render(templatePath, writer, model, properties);
}