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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 Overrides
GOOGLE_CLOUD_CPP_CLOUD_DEPLOY_ENDPOINT=... overrides the EndpointOption (which defaults to "clouddeploy.googleapis.com") used by MakeCloudDeployConnection().
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.
See Also
google::cloud::LoggingComponentsOptionGOOGLE_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.
See Also
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.
[[["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 2025-06-10 UTC."],[[["This document provides access to the Cloud Deploy C++ library documentation, with version 2.37.0-rc being the latest available and a list of previous versions going back to 2.11.0."],["Environment variables such as `GOOGLE_CLOUD_CPP_CLOUD_DEPLOY_ENDPOINT` can override the default endpoint used by `MakeCloudDeployConnection()`, offering flexibility in configuring the library's behavior."],["Tracing for gRPC calls can be enabled by setting `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, which will print each gRPC request and response, and pairing this with `GOOGLE_CLOUD_CPP_ENABLE_CLOG` will produce the outputs to the console."],["The environment variable `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` modifies the behavior of gRPC tracing, affecting how messages are formatted, while `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` enables logging in the library, allowing it to output to the console."],["Although setting `GOOGLE_CLOUD_PROJECT` to a value is useful for examples and integrations tests, it does not affect the library."]]],[]]
