In modern DevOps practices, signing and verifying images are crucial for maintaining security and integrity during rollbacks. Code signing ensures that only trusted images are deployed, while verification guarantees the images have not been tampered with. Below is an example of how to sign and verify images.
// Example code to sign an image
$imagePath = 'my-image.tar';
$privateKeyPath = 'private-key.pem';
$signedImagePath = 'my-image-signed.tar';
// Command to sign the image
$signCommand = "cosign sign --key $privateKeyPath $imagePath";
exec($signCommand);
// Command to verify the signed image
$verifyCommand = "cosign verify --key $privateKeyPath $signedImagePath";
exec($verifyCommand);
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