How do you secure Trunk-based development in production?

// Example: Secure your trunk-based development workflow
function deployApplication() {
    // Ensure only authorized personnel can trigger deployments
    if (!userIsAuthorized()) {
        throw new Exception('User not authorized for deployment.');
    }

    // Integrate automated tests before deployment
    $testResults = runAutomatedTests();
    if (!$testResults['success']) {
        throw new Exception('Automated tests failed. Deployment aborted.');
    }

    // Perform the deployment to production
    $result = executeDeployment();
    if ($result['success']) {
        echo 'Deployment successful!';
    } else {
        throw new Exception('Deployment failed: ' . $result['message']);
    }
}

// Run the deployment function
deployApplication();