Unless otherwise configured, the client libraries use Application Default Credentials to authenticate with Google Cloud Services. While this works for most applications, in some cases you may need to override this default. You can do so by providing the UnifiedCredentialsOption The following example shows how to explicitly load a service account key file:
[](std::string const& keyfile) {
auto is = std::ifstream(keyfile);
is.exceptions(std::ios::badbit); // Minimal error handling in examples
auto contents = std::string(std::istreambuf_iterator<char>(is.rdbuf()), {});
auto options =
google::cloud::Options{}.set<google::cloud::UnifiedCredentialsOption>(
google::cloud::MakeServiceAccountCredentials(contents));
return google::cloud::confidentialcomputing_v1::ConfidentialComputingClient(
google::cloud::confidentialcomputing_v1::
MakeConfidentialComputingConnection(options));
}
[[["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."],[[["This page lists various versions of the Confidential Computing C++ client library, ranging from the latest release candidate `2.37.0-rc` down to version `2.11.0`, each with links to its respective documentation for overriding authentication."],["The client libraries generally rely on Application Default Credentials (ADC) for Google Cloud Services authentication, but this can be overridden if required for specific situations."],["Authentication can be overridden by supplying a `UnifiedCredentialsOption`, for instance, by explicitly loading a service account key file as demonstrated in the code example."],["The provided example highlights the override process using a service account key file but recommends consulting the best practices guide for managing service account keys for enhanced details and security considerations."],["Further information on creating `google::cloud::Credentials` objects can be found in the Authentication Components documentation."]]],[]]
