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cosign:tldr:f8119

cosign: Sign a container image with a key pair stored in a Kubernetes secret.
$ cosign sign -key k8s://${namespace}/${key} ${image}
try on your machine

This command is using the cosign tool to sign a container image with a particular key.

Here is a breakdown of the command:

  • cosign: This is the command-line tool being used.
  • sign: This is the subcommand of cosign used to sign container images.
  • -key k8s://${namespace}/${key}: This flag specifies the key to use for signing the container image. It uses the k8s key type which is a Kubernetes-specific signing key. The ${namespace} and ${key} variables should be replaced with the actual values for the namespace and key name.
  • ${image}: This is the container image to be signed.

Overall, the command is leveraging the cosign tool to sign a container image using a specific key from a specified namespace, in a Kubernetes environment.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.
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