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_BARE_METAL_SOLUTION_ENDPOINT=... overrides the EndpointOption (which defaults to "baremetalsolution.googleapis.com") used by MakeBareMetalSolutionConnection().
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 2025-03-05 UTC."],[[["This document outlines various versions of the Bare Metal Solution environment, with version 2.37.0-rc being the latest release candidate."],["The document lists available versions, ranging from 2.11.0 up to 2.37.0-rc, for the Bare Metal Solution environment."],["Environment variables, such as `GOOGLE_CLOUD_CPP_BARE_METAL_SOLUTION_ENDPOINT`, `GOOGLE_CLOUD_CPP_ENABLE_TRACING`, and `GOOGLE_CLOUD_CPP_ENABLE_CLOG`, are used to customize the library's behavior and logging."],["Tracing and logging functionalities can be enabled and configured through environment variables, allowing for detailed observation and debugging of gRPC calls and library operations."],["The document details the use of the `GOOGLE_CLOUD_PROJECT` environment variable, used in examples and tests to define the GCP project, although it has no direct effect on the library."]]],[]]
