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_CONTAINER_ANALYSIS_ENDPOINT=... overrides the EndpointOption (which defaults to "containeranalysis.googleapis.com") used by MakeContainerAnalysisConnection().
GOOGLE_CLOUD_CPP_GRAFEAS_ENDPOINT=... overrides the EndpointOption (which defaults to "containeranalysis.googleapis.com") used by MakeGrafeasConnection().
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 2025-03-14 UTC."],[[["The latest release candidate version for this documentation is 2.37.0-rc, with several other versions available, ranging from 2.36.0 down to 2.11.0, and each version has it's own documentation."],["Environment variables are available to configure the library's behavior and are particularly useful for troubleshooting, and functions also allow this behavior to be configured in code."],["You can override the default endpoint used by `MakeContainerAnalysisConnection()` and `MakeGrafeasConnection()` using `GOOGLE_CLOUD_CPP_CONTAINER_ANALYSIS_ENDPOINT` and `GOOGLE_CLOUD_CPP_GRAFEAS_ENDPOINT`, respectively."],["Enabling tracing for gRPC calls can be done by setting `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and logging can be enabled via `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes`, for monitoring the request and response of the gRPC calls."],["Setting the `GOOGLE_CLOUD_PROJECT` enviornment variable will configure the GCP project for integration tests, but it has no effect in the library."]]],[]]
