gRPC storage plugin
This feature is currently experimental and is only supported for Chunks storage.
Cortex chunks storage supports a gRPC-based plugin system to use alternative backends for the index and chunks store.
A store plugin is a gRPC-based server which implements the methods required by the index and chunks store. Cortex chunks storage schema is then configured to use the plugin as backend system and gRPC will be used to communicate between Cortex and the plugin.
For example, if you’re deploying your Cortex cluster on Kubernetes, the plugin would run as a sidecar container of your Cortex pods and the Cortex’s
-grpc-store.server-address should be configured to the endpoint exposed by the sidecar plugin (eg.
How it works
In the cortex configuration file, add
grpc-store and configure storage with plugin server endpoint (ie. the address to the gRPC server which implements the cortex chunk store methods).
schema: configs: - from: 2019-07-29 store: grpc-store object_store: grpc-store schema: v10 index: prefix: index_ period: 168h chunks: prefix: chunk_ period: 168h storage: grpc_store: # gRPC server address server_address: localhost:6666
The following list shows Cortex storage plugins built and shared by the community: