[CONFIGURATION] File configuration - remove zipkin

CHANGELOG.md

@@ -15,6 +15,16 @@ Increment the:
 
 ## [Unreleased]
 
+* [CONFIGURATION] File configuration - remove zipkin
+  [#3804](https://github.com/open-telemetry/opentelemetry-cpp/pull/3804)
+
+Breaking changes:
+
+* [CONFIGURATION] File configuration - remove zipkin
+  [#3804](https://github.com/open-telemetry/opentelemetry-cpp/pull/3804)
+  * The zipkin trace exporter is no longer supported
+    by declarative configuration, due to an upstream schema change.
+
 ## [1.24 2025-11-20]
 
 * [RELEASE] Bump main branch to 1.24-dev

ci/do_ci.sh

@@ -505,7 +505,6 @@ elif [[ "$1" == "cmake.install.test" ]]; then
     "exporters_prometheus_builder"
     "exporters_elasticsearch"
     "exporters_zipkin"
-    "exporters_zipkin_builder"
   )
   EXPECTED_COMPONENTS_STRING=$(IFS=\;; echo "${EXPECTED_COMPONENTS[*]}")
   mkdir -p "${BUILD_DIR}/install_test"

examples/configuration/BUILD

@@ -10,7 +10,6 @@ cc_binary(
         "OTEL_HAVE_OTLP_HTTP",
         "OTEL_HAVE_OTLP_GRPC",
         "OTEL_HAVE_OTLP_FILE",
-        "OTEL_HAVE_ZIPKIN",
         "OTEL_HAVE_PROMETHEUS",
     ],
     tags = [
@@ -34,7 +33,6 @@ cc_binary(
         "//exporters/otlp:otlp_http_metric_exporter_builder",
         "//exporters/otlp:otlp_http_span_exporter_builder",
         "//exporters/prometheus:prometheus_exporter_builder",
-        "//exporters/zipkin:zipkin_exporter_builder",
         "//sdk:headers",
         "//sdk/src/configuration",
         "//sdk/src/logs",

examples/configuration/CMakeLists.txt

@@ -54,12 +54,6 @@ if(WITH_OTLP_FILE)
             opentelemetry-cpp::otlp_file_metric_exporter_builder)
 endif()
 
-if(WITH_ZIPKIN)
-  target_compile_definitions(example_yaml PRIVATE OTEL_HAVE_ZIPKIN)
-  target_link_libraries(
-    example_yaml PRIVATE opentelemetry-cpp::zipkin_trace_exporter_builder)
-endif()
-
 if(WITH_PROMETHEUS)
   target_compile_definitions(example_yaml PRIVATE OTEL_HAVE_PROMETHEUS)
   target_link_libraries(example_yaml

examples/configuration/main.cc

@@ -51,10 +51,6 @@
 #  include "opentelemetry/exporters/otlp/otlp_file_span_builder.h"
 #endif
 
-#ifdef OTEL_HAVE_ZIPKIN
-#  include "opentelemetry/exporters/zipkin/zipkin_builder.h"
-#endif
-
 #ifdef OTEL_HAVE_PROMETHEUS
 #  include "opentelemetry/exporters/prometheus/prometheus_pull_builder.h"
 #endif
@@ -215,10 +211,6 @@ void InitOtel(const std::string &config_file)
     opentelemetry::exporter::otlp::OtlpFileLogRecordBuilder::Register(registry.get());
 #endif
 
-#ifdef OTEL_HAVE_ZIPKIN
-    opentelemetry::exporter::zipkin::ZipkinBuilder::Register(registry.get());
-#endif
-
 #ifdef OTEL_HAVE_PROMETHEUS
     opentelemetry::exporter::metrics::PrometheusPullBuilder::Register(registry.get());
 #endif

exporters/zipkin/BUILD

@@ -45,21 +45,6 @@ cc_library(
     ],
 )
 
-cc_library(
-    name = "zipkin_exporter_builder",
-    srcs = [
-        "src/zipkin_builder.cc",
-    ],
-    hdrs = [
-        "include/opentelemetry/exporters/zipkin/zipkin_builder.h",
-    ],
-    strip_include_prefix = "include",
-    tags = ["zipkin"],
-    deps = [
-        ":zipkin_exporter",
-    ],
-)
-
 cc_test(
     name = "zipkin_recordable_test",
     srcs = ["test/zipkin_recordable_test.cc"],

exporters/zipkin/CMakeLists.txt

@@ -24,25 +24,6 @@ target_link_libraries(
   PUBLIC opentelemetry_trace opentelemetry_http_client_curl
          nlohmann_json::nlohmann_json)
 
-#
-# opentelemetry_exporter_zipkin_trace_builder
-#
-
-add_library(opentelemetry_exporter_zipkin_trace_builder src/zipkin_builder.cc)
-
-target_include_directories(
-  opentelemetry_exporter_zipkin_trace_builder
-  PUBLIC "$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>"
-         "$<INSTALL_INTERFACE:include>")
-
-set_target_properties(opentelemetry_exporter_zipkin_trace_builder
-                      PROPERTIES EXPORT_NAME zipkin_trace_exporter_builder)
-
-set_target_version(opentelemetry_exporter_zipkin_trace_builder)
-
-target_link_libraries(opentelemetry_exporter_zipkin_trace_builder
-                      PUBLIC opentelemetry_exporter_zipkin_trace)
-
 otel_add_component(
   COMPONENT
   exporters_zipkin
@@ -57,24 +38,8 @@ otel_add_component(
   "*.h"
   PATTERN
   "recordable.h"
-  EXCLUDE
-  PATTERN
-  "zipkin_builder.h"
   EXCLUDE)
 
-otel_add_component(
-  COMPONENT
-  exporters_zipkin_builder
-  TARGETS
-  opentelemetry_exporter_zipkin_trace_builder
-  FILES_DIRECTORY
-  "include/opentelemetry/exporters/zipkin"
-  FILES_DESTINATION
-  "include/opentelemetry/exporters"
-  FILES_MATCHING
-  PATTERN
-  "zipkin_builder.h")
-
 if(BUILD_TESTING)
   add_definitions(-DGTEST_LINKED_AS_SHARED_LIBRARY=1)
 

functional/configuration/shelltests/kitchen-sink.yaml

@@ -731,19 +731,6 @@ tracer_provider:
             # Values include stdout, or scheme+destination. For example: file:///path/to/file.jsonl.
             # If omitted or null, stdout is used.
             output_stream: stdout
-    - # Configure a batch span processor.
-      batch:
-        # Configure exporter.
-        exporter:
-          # Configure exporter to be zipkin.
-          zipkin:
-            # Configure endpoint.
-            # If omitted or null, http://localhost:9411/api/v2/spans is used.
-            endpoint: http://localhost:9411/api/v2/spans
-            # Configure max time (in milliseconds) to wait for each export.
-            # Value must be non-negative. A value of 0 indicates indefinite.
-            # If omitted or null, 10000 is used.
-            timeout: 10000
     - # Configure a simple span processor.
       simple:
         # Configure exporter.

sdk/include/opentelemetry/sdk/configuration/configuration_parser.h

@@ -88,7 +88,6 @@
 #include "opentelemetry/sdk/configuration/view_configuration.h"
 #include "opentelemetry/sdk/configuration/view_selector_configuration.h"
 #include "opentelemetry/sdk/configuration/view_stream_configuration.h"
-#include "opentelemetry/sdk/configuration/zipkin_span_exporter_configuration.h"
 #include "opentelemetry/version.h"
 
 OPENTELEMETRY_BEGIN_NAMESPACE
@@ -302,9 +301,6 @@ class ConfigurationParser
   std::unique_ptr<ConsoleSpanExporterConfiguration> ParseConsoleSpanExporterConfiguration(
       const std::unique_ptr<DocumentNode> &node) const;
 
-  std::unique_ptr<ZipkinSpanExporterConfiguration> ParseZipkinSpanExporterConfiguration(
-      const std::unique_ptr<DocumentNode> &node) const;
-
   std::unique_ptr<ExtensionSpanExporterConfiguration> ParseExtensionSpanExporterConfiguration(
       const std::string &name,
       std::unique_ptr<DocumentNode> node) const;

sdk/include/opentelemetry/sdk/configuration/registry.h

@@ -27,7 +27,6 @@
 #include "opentelemetry/sdk/configuration/otlp_http_span_exporter_builder.h"
 #include "opentelemetry/sdk/configuration/prometheus_pull_metric_exporter_builder.h"
 #include "opentelemetry/sdk/configuration/text_map_propagator_builder.h"
-#include "opentelemetry/sdk/configuration/zipkin_span_exporter_builder.h"
 #include "opentelemetry/version.h"
 
 OPENTELEMETRY_BEGIN_NAMESPACE
@@ -89,16 +88,6 @@ class Registry
     console_span_builder_ = std::move(builder);
   }
 
-  const ZipkinSpanExporterBuilder *GetZipkinSpanBuilder() const
-  {
-    return zipkin_span_builder_.get();
-  }
-
-  void SetZipkinSpanBuilder(std::unique_ptr<ZipkinSpanExporterBuilder> &&builder)
-  {
-    zipkin_span_builder_ = std::move(builder);
-  }
-
   const OtlpHttpPushMetricExporterBuilder *GetOtlpHttpPushMetricExporterBuilder() const
   {
     return otlp_http_push_metric_builder_.get();
@@ -251,7 +240,6 @@ class Registry
   std::unique_ptr<OtlpGrpcSpanExporterBuilder> otlp_grpc_span_builder_;
   std::unique_ptr<OtlpFileSpanExporterBuilder> otlp_file_span_builder_;
   std::unique_ptr<ConsoleSpanExporterBuilder> console_span_builder_;
-  std::unique_ptr<ZipkinSpanExporterBuilder> zipkin_span_builder_;
 
   std::unique_ptr<OtlpHttpPushMetricExporterBuilder> otlp_http_push_metric_builder_;
   std::unique_ptr<OtlpGrpcPushMetricExporterBuilder> otlp_grpc_push_metric_builder_;

sdk/include/opentelemetry/sdk/configuration/sdk_builder.h

@@ -44,7 +44,6 @@
 #include "opentelemetry/sdk/configuration/span_exporter_configuration.h"
 #include "opentelemetry/sdk/configuration/string_array_attribute_value_configuration.h"
 #include "opentelemetry/sdk/configuration/string_attribute_value_configuration.h"
-#include "opentelemetry/sdk/configuration/zipkin_span_exporter_configuration.h"
 #include "opentelemetry/sdk/logs/exporter.h"
 #include "opentelemetry/sdk/logs/logger_provider.h"
 #include "opentelemetry/sdk/metrics/export/periodic_exporting_metric_reader.h"
@@ -106,9 +105,6 @@ class SdkBuilder
   std::unique_ptr<opentelemetry::sdk::trace::SpanExporter> CreateConsoleSpanExporter(
       const opentelemetry::sdk::configuration::ConsoleSpanExporterConfiguration *model) const;
 
-  std::unique_ptr<opentelemetry::sdk::trace::SpanExporter> CreateZipkinSpanExporter(
-      const opentelemetry::sdk::configuration::ZipkinSpanExporterConfiguration *model) const;
-
   std::unique_ptr<opentelemetry::sdk::trace::SpanExporter> CreateExtensionSpanExporter(
       const opentelemetry::sdk::configuration::ExtensionSpanExporterConfiguration *model) const;
 

sdk/include/opentelemetry/sdk/configuration/span_exporter_configuration_visitor.h

@@ -15,7 +15,6 @@ class OtlpHttpSpanExporterConfiguration;
 class OtlpGrpcSpanExporterConfiguration;
 class OtlpFileSpanExporterConfiguration;
 class ConsoleSpanExporterConfiguration;
-class ZipkinSpanExporterConfiguration;
 class ExtensionSpanExporterConfiguration;
 
 class SpanExporterConfigurationVisitor
@@ -33,7 +32,6 @@ class SpanExporterConfigurationVisitor
   virtual void VisitOtlpGrpc(const OtlpGrpcSpanExporterConfiguration *model)   = 0;
   virtual void VisitOtlpFile(const OtlpFileSpanExporterConfiguration *model)   = 0;
   virtual void VisitConsole(const ConsoleSpanExporterConfiguration *model)     = 0;
-  virtual void VisitZipkin(const ZipkinSpanExporterConfiguration *model)       = 0;
   virtual void VisitExtension(const ExtensionSpanExporterConfiguration *model) = 0;
 };