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::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 2025-03-14 UTC."],[[["This document lists available versions of the Container Analysis C++ library, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["Environment variables, such as `GOOGLE_CLOUD_CPP_CONTAINER_ANALYSIS_ENDPOINT` and `GOOGLE_CLOUD_CPP_GRAFEAS_ENDPOINT`, can be used to override the default endpoints for Container Analysis and Grafeas."],["The library supports gRPC call tracing via the `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc` environment variable, which can be further customized with `GOOGLE_CLOUD_CPP_TRACING_OPTIONS`."],["Logging within the library can be activated by setting the `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` environment variable, allowing output to the program's console when using the environment variable or by setting a logging backend."],["The environment variable `GOOGLE_CLOUD_PROJECT` can be used in examples and integration tests to configure the GCP project, but will not have an effect on the library itself."]]],[]]
