1) Add ability to runtime filter to configure default, divisor, and
whether independent randomness is used.
2) Also add LE to the comparison filter.
Signed-off-by: Matt Klein <mklein@lyft.com>
v2 api changes: Use oneof to specify header match options, based on value(exact_match), regex or range.
The existing value and regex fields will be deprecated. Use the header_match_specfier oneof instead.
Add a new range.proto (envoy.type.v2) for the range type definition.
The SInt64Range message is defined in envoy.type.v2 range.proto.
It consists of start and end (inclusive, exclusive) sint64 values.
v1 api: Add a range_match object to the route headers json. Presence of this object indicates range based route match.
Example: For the below route config:
{
"prefix": "/",
"cluster": "PartitionB",
"name": "PartitionKey",
"range_match": { "start": 0, "end": 10}
}
In the incoming request, if the PartitionKey header value = 0, route match succeeds. Route match fails if the header value = 10, -10, "somestring".
This feature can be used for request routing with Service Fabric stateful services, to route to the desired partition with the [ranged partitioning scheme](https://docs.microsoft.com/en-us/azure/service-fabric/service-fabric-concepts-partitioning#ranged-partitioning-scheme)
Signed-off-by: Kavya Kotacherry <kavyako@microsoft.com>
Kuat
Matt Klein
Kavya Kotacherry - MSFT