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A number of environment variables can be used to configure the behavior of the library. There are also functions to configure this behavior in code. The environment variables are convenient when troubleshooting problems.
Endpoint OverridesGOOGLE_CLOUD_CPP_BINAUTHZ_MANAGEMENT_SERVICE_V1_ENDPOINT=... overrides the EndpointOption (which defaults to "binaryauthorization.googleapis.com") used by MakeBinauthzManagementServiceV1Connection().GOOGLE_CLOUD_CPP_SYSTEM_POLICY_V1_ENDPOINT=... overrides the EndpointOption (which defaults to "binaryauthorization.googleapis.com") used by MakeSystemPolicyV1Connection().GOOGLE_CLOUD_CPP_VALIDATION_HELPER_V1_ENDPOINT=... overrides the EndpointOption (which defaults to "binaryauthorization.googleapis.com") used by MakeValidationHelperV1Connection().GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc: turns on tracing for most gRPC calls. The library injects an additional Stub decorator that prints each gRPC request and response. Unless you have configured your own logging backend, you should also set GOOGLE_CLOUD_CPP_ENABLE_CLOG to produce any output on the program's console.
google::cloud::TracingComponentsOptionGOOGLE_CLOUD_CPP_TRACING_OPTIONS=...: modifies the behavior of gRPC tracing, including whether messages will be output on multiple lines, or whether string/bytes fields will be truncated.
google::cloud::GrpcTracingOptionsOptionGOOGLE_CLOUD_CPP_ENABLE_CLOG=yes: turns on logging in the library, basically the library always "logs" but the logging infrastructure has no backend to actually print anything until the application sets a backend or they set this environment variable.
GOOGLE_CLOUD_PROJECT=...: is used in examples and integration tests to configure the GCP project. This has no effect in the library.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-08-14 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["This page documents environment variables and configurations for the Binary Authorization C++ library, with version 2.37.0-rc being the latest release candidate and 2.16.0 being the minimum documented."],["Endpoint overrides for `MakeBinauthzManagementServiceV1Connection()`, `MakeSystemPolicyV1Connection()`, and `MakeValidationHelperV1Connection()` can be set using environment variables like `GOOGLE_CLOUD_CPP_BINAUTHZ_MANAGEMENT_SERVICE_V1_ENDPOINT`."],["Tracing for gRPC calls can be enabled by setting `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and logging output can be displayed on the console by also setting `GOOGLE_CLOUD_CPP_ENABLE_CLOG`."],["The behavior of gRPC tracing, like message formatting and field truncation, is adjustable via the `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` environment variable."],["While `GOOGLE_CLOUD_PROJECT` can be used in examples and tests, it is not used for any configuration within the library itself."]]],[]]
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