How do I set up provenance and attestations for Container registries?

Setting up provenance and attestations for container registries is crucial for maintaining security and trust in your application deployments. This involves creating and storing metadata about the container images, which can include information about their origin, build process, and integrity checks. By leveraging tools like Notary or TUF (The Update Framework), you can ensure that only verified images are used in your environments.

Example of Setting Up Attestations

        // Example PHP code to generate a provenance document
        
        $provenance = [
            'name' => 'my-app',
            'version' => '1.0.0',
            'builder' => 'CI/CD Pipeline',
            'source' => 'https://github.com/my-org/my-app',
            'date' => date('Y-m-d H:i:s'),
            'signature' => 'signature_placeholder'
        ];
        
        // Function to save provenance as JSON
        function saveProvenance($provenance) {
            file_put_contents('provenance.json', json_encode($provenance));
        }

        // Call the function
        saveProvenance($provenance);