[protobuf] Update protobuf definitions to v1.24.0 (#259)

Signed-off-by: envoy-bot <envoy-bot@users.noreply.github.com>

Author: github-actions[bot]

api/src/main/proto/envoy/admin/v3/clusters.proto

@@ -30,7 +30,7 @@ message Clusters {
 }
 
 // Details an individual cluster's current status.
-// [#next-free-field: 8]
+// [#next-free-field: 9]
 message ClusterStatus {
   option (udpa.annotations.versioning).previous_message_type = "envoy.admin.v2alpha.ClusterStatus";
 
@@ -84,6 +84,9 @@ message ClusterStatus {
 
   // Observability name of the cluster.
   string observability_name = 7;
+
+  // The :ref:`EDS service name <envoy_v3_api_field_config.cluster.v3.Cluster.EdsClusterConfig.service_name>` if the cluster is an EDS cluster.
+  string eds_service_name = 8;
 }
 
 // Current state of a particular host.

api/src/main/proto/envoy/admin/v3/listeners.proto

@@ -37,6 +37,5 @@ message ListenerStatus {
 
   // The additional addresses the listener is listening on as specified via the :ref:`additional_addresses <envoy_v3_api_field_config.listener.v3.Listener.additional_addresses>`
   // configuration.
-  // [#not-implemented-hide:]
   repeated config.core.v3.Address additional_local_addresses = 3;
 }

api/src/main/proto/envoy/admin/v3/server_info.proto

@@ -15,7 +15,7 @@ option java_multiple_files = true;
 option go_package = "github.com/envoyproxy/go-control-plane/envoy/admin/v3;adminv3";
 option (udpa.annotations.file_status).package_version_status = ACTIVE;
 
-// [#protodoc-title: Server State]
+// [#protodoc-title: Server state]
 
 // Proto representation of the value returned by /server_info, containing
 // server version/server status information.

api/src/main/proto/envoy/api/v2/cluster/outlier_detection.proto

@@ -24,9 +24,9 @@ option (udpa.annotations.file_status).package_version_status = FROZEN;
 // more information on outlier detection.
 // [#next-free-field: 21]
 message OutlierDetection {
-  // The number of consecutive 5xx responses or local origin errors that are mapped
-  // to 5xx error codes before a consecutive 5xx ejection
-  // occurs. Defaults to 5.
+  // The number of consecutive server-side error responses (for HTTP traffic,
+  // 5xx responses; for TCP traffic, connection failures; for Redis, failure to
+  // respond PONG; etc.) before a consecutive 5xx ejection occurs. Defaults to 5.
   google.protobuf.UInt32Value consecutive_5xx = 1;
 
   // The time interval between ejection analysis sweeps. This can result in

api/src/main/proto/envoy/api/v2/route/route_components.proto

@@ -859,8 +859,9 @@ message RouteAction {
     // Indicates that during forwarding, the host header will be swapped with
     // the hostname of the upstream host chosen by the cluster manager. This
     // option is applicable only when the destination cluster for a route is of
-    // type *strict_dns* or *logical_dns*. Setting this to true with other cluster
-    // types has no effect.
+    // type ``STRICT_DNS``,  ``LOGICAL_DNS`` or ``STATIC``. For ``STATIC`` clusters, the
+    // hostname attribute of the endpoint must be configured. Setting this to true
+    // with other cluster types has no effect.
     google.protobuf.BoolValue auto_host_rewrite = 7;
 
     // Indicates that during forwarding, the host header will be swapped with the content of given

api/src/main/proto/envoy/config/bootstrap/v3/bootstrap.proto

@@ -41,7 +41,7 @@ option (udpa.annotations.file_status).package_version_status = ACTIVE;
 // <config_overview_bootstrap>` for more detail.
 
 // Bootstrap :ref:`configuration overview <config_overview_bootstrap>`.
-// [#next-free-field: 35]
+// [#next-free-field: 36]
 message Bootstrap {
   option (udpa.annotations.versioning).previous_message_type =
       "envoy.config.bootstrap.v2.Bootstrap";
@@ -335,6 +335,13 @@ message Bootstrap {
   // If the value is not specified, Google RE2 will be used by default.
   // [#extension-category: envoy.regex_engines]
   core.v3.TypedExtensionConfig default_regex_engine = 34;
+
+  // Optional XdsResourcesDelegate configuration, which allows plugging custom logic into both
+  // fetch and load events during xDS processing.
+  // If a value is not specified, no XdsResourcesDelegate will be used.
+  // TODO(abeyad): Add public-facing documentation.
+  // [#not-implemented-hide:]
+  core.v3.TypedExtensionConfig xds_delegate_extension = 35;
 }
 
 // Administration interface :ref:`operations documentation

api/src/main/proto/envoy/config/cluster/v3/cluster.proto

@@ -209,7 +209,7 @@ message Cluster {
 
   // Optionally divide the endpoints in this cluster into subsets defined by
   // endpoint metadata and selected by route and weighted cluster metadata.
-  // [#next-free-field: 8]
+  // [#next-free-field: 9]
   message LbSubsetConfig {
     option (udpa.annotations.versioning).previous_message_type =
         "envoy.api.v2.Cluster.LbSubsetConfig";
@@ -225,6 +225,52 @@ message Cluster {
       DEFAULT_SUBSET = 2;
     }
 
+    enum LbSubsetMetadataFallbackPolicy {
+      // No fallback. Route metadata will be used as-is.
+      METADATA_NO_FALLBACK = 0;
+
+      // A special metadata key ``fallback_list`` will be used to provide variants of metadata to try.
+      // Value of ``fallback_list`` key has to be a list. Every list element has to be a struct - it will
+      // be merged with route metadata, overriding keys that appear in both places.
+      // ``fallback_list`` entries will be used in order until a host is found.
+      //
+      // ``fallback_list`` key itself is removed from metadata before subset load balancing is performed.
+      //
+      // Example:
+      //
+      // for metadata:
+      //
+      // .. code-block:: yaml
+      //
+      //   version: 1.0
+      //   fallback_list:
+      //     - version: 2.0
+      //       hardware: c64
+      //     - hardware: c32
+      //     - version: 3.0
+      //
+      // at first, metadata:
+      //
+      // .. code-block:: json
+      //
+      //   {"version": "2.0", "hardware": "c64"}
+      //
+      // will be used for load balancing. If no host is found, metadata:
+      //
+      // .. code-block:: json
+      //
+      //   {"version": "1.0", "hardware": "c32"}
+      //
+      // is next to try. If it still results in no host, finally metadata:
+      //
+      // .. code-block:: json
+      //
+      //   {"version": "3.0"}
+      //
+      // is used.
+      FALLBACK_LIST = 1;
+    }
+
     // Specifications for subsets.
     message LbSubsetSelector {
       option (udpa.annotations.versioning).previous_message_type =
@@ -260,10 +306,7 @@ message Cluster {
       // Selects a mode of operation in which each subset has only one host. This mode uses the same rules for
       // choosing a host, but updating hosts is faster, especially for large numbers of hosts.
       //
-      // If a match is found to a host, that host will be used regardless of priority levels, unless the host is unhealthy.
-      //
-      // Currently, this mode is only supported if ``subset_selectors`` has only one entry, and ``keys`` contains
-      // only one entry.
+      // If a match is found to a host, that host will be used regardless of priority levels.
       //
       // When this mode is enabled, configurations that contain more than one host with the same metadata value for the single key in ``keys``
       // will use only one of the hosts with the given key; no requests will be routed to the others. The cluster gauge
@@ -349,6 +392,16 @@ message Cluster {
     // endpoint metadata if the endpoint metadata matches the value exactly OR it is a list value
     // and any of the elements in the list matches the criteria.
     bool list_as_any = 7;
+
+    // Fallback mechanism that allows to try different route metadata until a host is found.
+    // If load balancing process, including all its mechanisms (like
+    // :ref:`fallback_policy<envoy_v3_api_field_config.cluster.v3.Cluster.LbSubsetConfig.fallback_policy>`)
+    // fails to select a host, this policy decides if and how the process is repeated using another metadata.
+    //
+    // The value defaults to
+    // :ref:`METADATA_NO_FALLBACK<envoy_v3_api_enum_value_config.cluster.v3.Cluster.LbSubsetConfig.LbSubsetMetadataFallbackPolicy.METADATA_NO_FALLBACK>`.
+    LbSubsetMetadataFallbackPolicy metadata_fallback_policy = 8
+        [(validate.rules).enum = {defined_only: true}];
   }
 
   // Configuration for :ref:`slow start mode <arch_overview_load_balancing_slow_start>`.
@@ -462,8 +515,8 @@ message Cluster {
   // Specific configuration for the :ref:`Maglev<arch_overview_load_balancing_types_maglev>`
   // load balancing policy.
   message MaglevLbConfig {
-    // The table size for Maglev hashing. The Maglev aims for ‘minimal disruption’ rather than an absolute guarantee.
-    // Minimal disruption means that when the set of upstreams changes, a connection will likely be sent to the same
+    // The table size for Maglev hashing. Maglev aims for "minimal disruption" rather than an absolute guarantee.
+    // Minimal disruption means that when the set of upstream hosts change, a connection will likely be sent to the same
     // upstream as it was before. Increasing the table size reduces the amount of disruption.
     // The table size must be prime number limited to 5000011. If it is not specified, the default is 65537.
     google.protobuf.UInt64Value table_size = 1 [(validate.rules).uint64 = {lte: 5000011}];
@@ -493,6 +546,10 @@ message Cluster {
     // The http header to override destination address if :ref:`use_http_header <envoy_v3_api_field_config.cluster.v3.Cluster.OriginalDstLbConfig.use_http_header>`.
     // is set to true. If the value is empty, :ref:`x-envoy-original-dst-host <config_http_conn_man_headers_x-envoy-original-dst-host>` will be used.
     string http_header_name = 2;
+
+    // The port to override for the original dst address. This port
+    // will take precedence over filter state and header override ports
+    google.protobuf.UInt32Value upstream_port_override = 3 [(validate.rules).uint32 = {lte: 65535}];
   }
 
   // Common configuration for all load balancer implementations.
@@ -1167,15 +1224,6 @@ message LoadBalancingPolicy {
   repeated Policy policies = 1;
 }
 
-// An extensible structure containing the address Envoy should bind to when
-// establishing upstream connections.
-message UpstreamBindConfig {
-  option (udpa.annotations.versioning).previous_message_type = "envoy.api.v2.UpstreamBindConfig";
-
-  // The address Envoy should bind to when establishing upstream connections.
-  core.v3.Address source_address = 1;
-}
-
 message UpstreamConnectionOptions {
   option (udpa.annotations.versioning).previous_message_type =
       "envoy.api.v2.UpstreamConnectionOptions";

api/src/main/proto/envoy/config/cluster/v3/outlier_detection.proto

@@ -24,9 +24,9 @@ message OutlierDetection {
   option (udpa.annotations.versioning).previous_message_type =
       "envoy.api.v2.cluster.OutlierDetection";
 
-  // The number of consecutive 5xx responses or local origin errors that are mapped
-  // to 5xx error codes before a consecutive 5xx ejection
-  // occurs. Defaults to 5.
+  // The number of consecutive server-side error responses (for HTTP traffic,
+  // 5xx responses; for TCP traffic, connection failures; for Redis, failure to
+  // respond PONG; etc.) before a consecutive 5xx ejection occurs. Defaults to 5.
   google.protobuf.UInt32Value consecutive_5xx = 1;
 
   // The time interval between ejection analysis sweeps. This can result in

api/src/main/proto/envoy/config/common/key_value/v3/config.proto

@@ -15,7 +15,7 @@ option java_multiple_files = true;
 option go_package = "github.com/envoyproxy/go-control-plane/envoy/config/common/key_value/v3;key_valuev3";
 option (udpa.annotations.file_status).package_version_status = ACTIVE;
 
-// [#protodoc-title: Key Value Store storage plugin]
+// [#protodoc-title: Key/value store storage plugin]
 
 // This shared configuration for Envoy key value stores.
 message KeyValueStoreConfig {

api/src/main/proto/envoy/config/common/mutation_rules/v3/mutation_rules.proto

@@ -14,7 +14,7 @@ option java_multiple_files = true;
 option go_package = "github.com/envoyproxy/go-control-plane/envoy/config/common/mutation_rules/v3;mutation_rulesv3";
 option (udpa.annotations.file_status).package_version_status = ACTIVE;
 
-// [#protodoc-title: Header Mutation Rules]
+// [#protodoc-title: Header mutation rules]
 
 // The HeaderMutationRules structure specifies what headers may be
 // manipulated by a processing filter. This set of rules makes it