if [[ -n "$PROJECT_ID" ]]; then GCLOUD_CMD="$GCLOUD_CMD --project=$PROJECT_ID" fi

if $VERBOSE; then log_info "Running: $GCLOUD_CMD" set -x fi if $GCLOUD_CMD; then log_info "✓ Authentication successful"

Options: -k, --key-file PATH Service account JSON key file (required) -p, --project ID GCP project ID (optional) -v, --verbose Enable verbose output --no-set-active Don't set as active account -h, --help Show this help message