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In preparation for supporting the OpenTelemetry protocol for the proxy's traces, this vendors the relevant protobufs as well as some convenience helpers here. This works around the fact that the existing `opentelemetry` crates do not support the version of tonic that we currently use (0.10), and this vendoring can be removed once we update. [#10111](linkerd/linkerd2#10111) Signed-off-by: Scott Fleener <[email protected]>
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| [package] | ||
| name = "opentelemetry-proto" | ||
| version = "0.1.0" | ||
| authors = ["The OpenTelemetry Authors"] | ||
| license = "Apache-2.0" | ||
| edition = "2021" | ||
| publish = false | ||
| description = """ | ||
| gRPC bindings for OpenTelemetry. | ||
| Vendored from https://github.com/open-telemetry/opentelemetry-rust/. | ||
| """ | ||
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| [dependencies] | ||
| tonic = { version = "0.10", features = ["codegen", "prost", "transport"] } | ||
| prost = "0.12" | ||
| opentelemetry = { version = "0.23", default-features = false, features = ["trace"] } | ||
| opentelemetry_sdk = { version = "0.23", default-features = false, features = ["trace"] } | ||
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| [dev-dependencies] | ||
| opentelemetry = { version = "0.23", default-features = false, features = ["trace", "testing"] } | ||
| tonic-build = { version = "0.10", default-features = false, features = ["prost"] } | ||
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| [lib] | ||
| doctest = false |
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| # opentelemetry-proto | ||
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| This library mirrors parts of the | ||
| [`opentelemetry-proto`](https://github.com/census-instrumentation/opencensus-proto/) | ||
| repo, with the non-tracing and build-related components removed. | ||
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| ## License | ||
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| Copyright 2024, OpenTelemetry Authors | ||
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| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
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| http://www.apache.org/licenses/LICENSE-2.0 | ||
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| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. |
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opentelemetry-proto/opentelemetry/proto/collector/trace/v1/trace_service.proto
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| // Copyright 2019, OpenTelemetry Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| syntax = "proto3"; | ||
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| package opentelemetry.proto.collector.trace.v1; | ||
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| import "opentelemetry/proto/trace/v1/trace.proto"; | ||
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| option csharp_namespace = "OpenTelemetry.Proto.Collector.Trace.V1"; | ||
| option java_multiple_files = true; | ||
| option java_package = "io.opentelemetry.proto.collector.trace.v1"; | ||
| option java_outer_classname = "TraceServiceProto"; | ||
| option go_package = "go.opentelemetry.io/proto/otlp/collector/trace/v1"; | ||
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| // Service that can be used to push spans between one Application instrumented with | ||
| // OpenTelemetry and a collector, or between a collector and a central collector (in this | ||
| // case spans are sent/received to/from multiple Applications). | ||
| service TraceService { | ||
| // For performance reasons, it is recommended to keep this RPC | ||
| // alive for the entire life of the application. | ||
| rpc Export(ExportTraceServiceRequest) returns (ExportTraceServiceResponse) {} | ||
| } | ||
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| message ExportTraceServiceRequest { | ||
| // An array of ResourceSpans. | ||
| // For data coming from a single resource this array will typically contain one | ||
| // element. Intermediary nodes (such as OpenTelemetry Collector) that receive | ||
| // data from multiple origins typically batch the data before forwarding further and | ||
| // in that case this array will contain multiple elements. | ||
| repeated opentelemetry.proto.trace.v1.ResourceSpans resource_spans = 1; | ||
| } | ||
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| message ExportTraceServiceResponse { | ||
| // The details of a partially successful export request. | ||
| // | ||
| // If the request is only partially accepted | ||
| // (i.e. when the server accepts only parts of the data and rejects the rest) | ||
| // the server MUST initialize the `partial_success` field and MUST | ||
| // set the `rejected_<signal>` with the number of items it rejected. | ||
| // | ||
| // Servers MAY also make use of the `partial_success` field to convey | ||
| // warnings/suggestions to senders even when the request was fully accepted. | ||
| // In such cases, the `rejected_<signal>` MUST have a value of `0` and | ||
| // the `error_message` MUST be non-empty. | ||
| // | ||
| // A `partial_success` message with an empty value (rejected_<signal> = 0 and | ||
| // `error_message` = "") is equivalent to it not being set/present. Senders | ||
| // SHOULD interpret it the same way as in the full success case. | ||
| ExportTracePartialSuccess partial_success = 1; | ||
| } | ||
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| message ExportTracePartialSuccess { | ||
| // The number of rejected spans. | ||
| // | ||
| // A `rejected_<signal>` field holding a `0` value indicates that the | ||
| // request was fully accepted. | ||
| int64 rejected_spans = 1; | ||
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| // A developer-facing human-readable message in English. It should be used | ||
| // either to explain why the server rejected parts of the data during a partial | ||
| // success or to convey warnings/suggestions during a full success. The message | ||
| // should offer guidance on how users can address such issues. | ||
| // | ||
| // error_message is an optional field. An error_message with an empty value | ||
| // is equivalent to it not being set. | ||
| string error_message = 2; | ||
| } |
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opentelemetry-proto/opentelemetry/proto/common/v1/common.proto
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| // Copyright 2019, OpenTelemetry Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| syntax = "proto3"; | ||
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| package opentelemetry.proto.common.v1; | ||
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| option csharp_namespace = "OpenTelemetry.Proto.Common.V1"; | ||
| option java_multiple_files = true; | ||
| option java_package = "io.opentelemetry.proto.common.v1"; | ||
| option java_outer_classname = "CommonProto"; | ||
| option go_package = "go.opentelemetry.io/proto/otlp/common/v1"; | ||
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| // AnyValue is used to represent any type of attribute value. AnyValue may contain a | ||
| // primitive value such as a string or integer or it may contain an arbitrary nested | ||
| // object containing arrays, key-value lists and primitives. | ||
| message AnyValue { | ||
| // The value is one of the listed fields. It is valid for all values to be unspecified | ||
| // in which case this AnyValue is considered to be "empty". | ||
| oneof value { | ||
| string string_value = 1; | ||
| bool bool_value = 2; | ||
| int64 int_value = 3; | ||
| double double_value = 4; | ||
| ArrayValue array_value = 5; | ||
| KeyValueList kvlist_value = 6; | ||
| bytes bytes_value = 7; | ||
| } | ||
| } | ||
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| // ArrayValue is a list of AnyValue messages. We need ArrayValue as a message | ||
| // since oneof in AnyValue does not allow repeated fields. | ||
| message ArrayValue { | ||
| // Array of values. The array may be empty (contain 0 elements). | ||
| repeated AnyValue values = 1; | ||
| } | ||
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| // KeyValueList is a list of KeyValue messages. We need KeyValueList as a message | ||
| // since `oneof` in AnyValue does not allow repeated fields. Everywhere else where we need | ||
| // a list of KeyValue messages (e.g. in Span) we use `repeated KeyValue` directly to | ||
| // avoid unnecessary extra wrapping (which slows down the protocol). The 2 approaches | ||
| // are semantically equivalent. | ||
| message KeyValueList { | ||
| // A collection of key/value pairs of key-value pairs. The list may be empty (may | ||
| // contain 0 elements). | ||
| // The keys MUST be unique (it is not allowed to have more than one | ||
| // value with the same key). | ||
| repeated KeyValue values = 1; | ||
| } | ||
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| // KeyValue is a key-value pair that is used to store Span attributes, Link | ||
| // attributes, etc. | ||
| message KeyValue { | ||
| string key = 1; | ||
| AnyValue value = 2; | ||
| } | ||
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| // InstrumentationScope is a message representing the instrumentation scope information | ||
| // such as the fully qualified name and version. | ||
| message InstrumentationScope { | ||
| // An empty instrumentation scope name means the name is unknown. | ||
| string name = 1; | ||
| string version = 2; | ||
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| // Additional attributes that describe the scope. [Optional]. | ||
| // Attribute keys MUST be unique (it is not allowed to have more than one | ||
| // attribute with the same key). | ||
| repeated KeyValue attributes = 3; | ||
| uint32 dropped_attributes_count = 4; | ||
| } |
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