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_GKE_HUB_ENDPOINT=... overrides the EndpointOption (which defaults to "gkehub.googleapis.com") used by MakeGkeHubConnection().
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."],[[["The latest release candidate version for gkehub is 2.37.0-rc, as shown in the provided list of available versions."],["The content provides a list of gkehub versions ranging from 2.11.0 up to the latest release candidate, including links to their respective documentation."],["Environment variables can be used to configure the library's behavior, and these are particularly useful for troubleshooting, including an example such as overriding the default endpoint using `GOOGLE_CLOUD_CPP_GKE_HUB_ENDPOINT`."],["Logging can be enabled for gRPC calls using `GOOGLE_CLOUD_CPP_ENABLE_TRACING`, and output can be directed to the console when combined with `GOOGLE_CLOUD_CPP_ENABLE_CLOG`."],["`GOOGLE_CLOUD_PROJECT` can be used to configure the project when running examples and tests."]]],[]]
