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_VMWARE_ENGINE_ENDPOINT=... overrides the EndpointOption (which defaults to "vmwareengine.googleapis.com") used by MakeVmwareEngineConnection().
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::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.
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 2025-05-07 UTC."],[[["The latest version of the VMware Engine documentation is `2.37.0-rc`, and it provides links to the documentation for version `2.36.0` down to `2.11.0` for reference."],["Environment variables can be used to configure the library's behavior, especially helpful when troubleshooting, and can override default settings like the endpoint using `GOOGLE_CLOUD_CPP_VMWARE_ENGINE_ENDPOINT`."],["Enabling tracing for gRPC calls is possible with `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, which requires setting `GOOGLE_CLOUD_CPP_ENABLE_CLOG` to output logs to the console."],["`GOOGLE_CLOUD_CPP_TRACING_OPTIONS` allows modification of gRPC tracing behavior, such as controlling the output format and truncation of string/bytes fields."],["`GOOGLE_CLOUD_PROJECT` can be set as an environment variable when running examples or integration tests to configure the GCP project that will be used."]]],[]]
