public static Cluster ToEnvoyEgressCluster(this EndpointType endpointType)
{
return(new Cluster()
{
Name = endpointType.EgressId,
LbPolicy = Cluster.Types.LbPolicy.RoundRobin,
Type = Cluster.Types.DiscoveryType.Eds,
ConnectTimeout = Duration.FromTimeSpan(TimeSpan.FromMilliseconds(250)),
EdsClusterConfig =
new Cluster.Types.EdsClusterConfig()
{
EdsConfig = new ConfigSource()
{
Ads = new AggregatedConfigSource()
{
}
}
}
});
}
private static Route CreateEnvoyRoute(EndpointType e, string clusterName, string prefixRewrite)
{
var match = new RouteMatch()
{
Prefix = e.ServiceAbsolutePath.TrimEnd('/')
};
if (!e.DefaultEndpoint)
{
match.Headers.Add(new HeaderMatcher()
{
Name = "EndpointName", ExactMatch = e.EndpointName
});
}
if (e.Role == ServiceEndpointRole.StatefulSecondary)
{
match.Headers.Add(new HeaderMatcher()
{
Name = "Replica", ExactMatch = "Secondary"
});
}
var routeAction = new RouteAction {
Cluster = clusterName
};
if (prefixRewrite != null)
{
routeAction.PrefixRewrite = prefixRewrite == "/" ? prefixRewrite : prefixRewrite.TrimEnd('/');
}
return(new Route
{
Route_ = routeAction,
Match = match
});
}
private static List <EndpointInstance> ExtractEndpoints(ServiceReplicaList replicas, Partition partition,
Uri service)
{
List <EndpointInstance> endpointInstances = new List <EndpointInstance>();
foreach (var replica in replicas)
{
if (replica.ReplicaAddress.Length == 0)
{
continue;
}
JObject addresses;
try
{
addresses = JObject.Parse(replica.ReplicaAddress);
}
catch
{
continue;
}
var endpoints = addresses["Endpoints"].Value <JObject>();
foreach (var endpoint in endpoints)
{
var endpointName = endpoint.Key;
var endpointAddress = endpoint.Value.ToString();
if (!endpointAddress.StartsWith("http", StringComparison.InvariantCultureIgnoreCase))
{
continue;
}
EndpointType endpointType = null;
if (partition.ServiceKind == ServiceKind.Stateful)
{
var statefulRole = ((StatefulServiceReplica)replica).ReplicaRole;
ServiceEndpointRole role;
switch (statefulRole)
{
case ReplicaRole.Primary:
role = ServiceEndpointRole.StatefulPrimary;
break;
case ReplicaRole.ActiveSecondary:
role = ServiceEndpointRole.StatefulSecondary;
break;
default:
role = ServiceEndpointRole.Invalid;
break;
}
switch (partition.PartitionInformation.Kind)
{
case ServicePartitionKind.Singleton:
endpointType = EndpointType.CreateSingleton(service.AbsolutePath,
partition.PartitionInformation.Id, endpointName, endpoints.Count == 1, role);
break;
case ServicePartitionKind.Int64Range:
var rangePartitionInformation =
(Int64RangePartitionInformation)partition.PartitionInformation;
endpointType = EndpointType.CreateInt64Partitioned(service.AbsolutePath,
partition.PartitionInformation.Id, endpointName, endpoints.Count == 1, role,
rangePartitionInformation.LowKey, rangePartitionInformation.HighKey);
break;
case ServicePartitionKind.Named:
var namedPartitionInformation =
(NamedPartitionInformation)partition.PartitionInformation;
endpointType = EndpointType.CreateNamedPartitioned(service.AbsolutePath,
partition.PartitionInformation.Id, endpointName, endpoints.Count == 1, role,
namedPartitionInformation.Name);
break;
case ServicePartitionKind.Invalid:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
else
{
endpointType = EndpointType.CreateStateless(service.AbsolutePath,
partition.PartitionInformation.Id, endpointName, endpoints.Count == 1);
}
if (endpointType != null)
{
var endpointInstanceObject =
new EndpointInstance(endpointType, new Uri(endpointAddress), replica.NodeName);
endpointInstances.Add(endpointInstanceObject);
}
}
}
return(endpointInstances);
}
public EndpointInstance(EndpointType type, Uri networkAddress, string nodeName)
{
Type = type;
NetworkAddress = networkAddress;
NodeName = nodeName;
}
protected bool Equals(EndpointType other)
{
return(string.Equals(_key, other._key));
}
