cosign upload blob
Upload one or more blobs to the supplied container image address
Options
| Name | Description | 
|---|---|
| --output-file  <output-file> | Log output to a file | 
| --timeout, -t  <timeout> | Timeout for commands | 
| --verbose, -d | Log debug output | 
| --allow-insecure-registry | Whether to allow insecure connections to registries. Don't use this for anything but testing | 
| --attachment-tag-prefix  <attachment-tag-prefix> | Optional custom prefix to use for attached image tags. Attachment images are tagged as: `[AttachmentTagPrefix]sha256-[TargetImageDigest].[AttachmentName]` | 
| --ct  <ct> | Content type to set | 
| --files, -f  <files> | <filepath>:[platform/arch] | 
| --k8s-keychain | Whether to use the kubernetes keychain instead of the default keychain (supports workload identity) | 
| --help, -h | Help for blob |