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 2025-03-21 UTC."],[[["This webpage documents the available versions of the Confidential Computing client library, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["The client libraries primarily use Application Default Credentials for authentication with Google Cloud Services, but can be overridden."],["Authentication override is achieved by providing the `UnifiedCredentialsOption`, allowing users to specify alternative credentials."],["An example demonstrates loading a service account key file for authentication, showcasing a practical override scenario."],["For advanced credential management and additional information on creating `google::cloud::Credentials` objects, users are encouraged to refer to the best practices guide and Authentication Components section."]]],[]]
