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_BACKUP_FOR_GKE_ENDPOINT=... overrides the EndpointOption (which defaults to "gkebackup.googleapis.com") used by MakeBackupForGKEConnection().
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 webpage lists various versions of the `gkebackup-env`, ranging from the latest release candidate (2.37.0-rc) down to version 2.12.0, with each link pointing to its respective documentation."],["Environment variables like `GOOGLE_CLOUD_CPP_BACKUP_FOR_GKE_ENDPOINT` can be used to override the default endpoint used by `MakeBackupForGKEConnection()`."],["Tracing can be enabled for gRPC calls by setting `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and it can be customized using `GOOGLE_CLOUD_CPP_TRACING_OPTIONS`."],["Logging within the library can be enabled using the `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` environment variable, allowing output to be printed to the console."],["The `GOOGLE_CLOUD_PROJECT` environment variable can be set for configuring the GCP project in examples and integration tests but does not affect the library."]]],[]]
