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54 lines
2.0 KiB
54 lines
2.0 KiB
syntax = "proto3"; |
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package envoy.config.cluster.redis; |
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option java_outer_classname = "RedisClusterProto"; |
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option java_multiple_files = true; |
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option java_package = "io.envoyproxy.envoy.config.cluster.redis"; |
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option go_package = "v2"; |
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import "google/protobuf/duration.proto"; |
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import "validate/validate.proto"; |
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import "gogoproto/gogo.proto"; |
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// [#protodoc-title: Redis Cluster Configuration] |
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// This cluster adds support for `Redis Cluster <https://redis.io/topics/cluster-spec>`_, as part |
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// of :ref:`Envoy's support for Redis Cluster <arch_overview_redis>`. |
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// |
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// Redis Cluster is an extension of Redis which supports sharding and high availability (where a |
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// shard that loses its master fails over to a replica, and designates it as the new master). |
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// However, as there is no unified frontend or proxy service in front of Redis Cluster, the client |
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// (in this case Envoy) must locally maintain the state of the Redis Cluster, specifically the |
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// topology. A random node in the cluster is queried for the topology using the `CLUSTER SLOTS |
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// command <https://redis.io/commands/cluster-slots>`_. This result is then stored locally, and |
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// updated at user-configured intervals. |
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// |
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// Example: |
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// |
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// .. code-block:: yaml |
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// |
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// name: name |
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// connect_timeout: 0.25s |
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// dns_lookup_family: V4_ONLY |
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// hosts: |
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// - socket_address: |
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// address: foo.bar.com |
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// port_value: 22120 |
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// cluster_type: |
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// name: envoy.clusters.redis |
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// typed_config: |
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// "@type": type.googleapis.com/google.protobuf.Struct |
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// value: |
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// cluster_refresh_rate: 30s |
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// cluster_refresh_timeout: 0.5s |
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message RedisClusterConfig { |
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// Interval between successive topology refresh requests. If not set, this defaults to 5s. |
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google.protobuf.Duration cluster_refresh_rate = 1 |
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[(validate.rules).duration.gt = {}, (gogoproto.stdduration) = true]; |
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// Timeout for topology refresh request. If not set, this defaults to 3s. |
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google.protobuf.Duration cluster_refresh_timeout = 2 |
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[(validate.rules).duration.gt = {}, (gogoproto.stdduration) = true]; |
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}
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