13.5. 使用带有 quay 的 cosign

如果您有 Go 1.16+，您可以使用以下命令直接安装 cosign：

$ go install github.com/sigstore/cosign/cmd/cosign@v1.0.0
go: downloading github.com/sigstore/cosign v1.0.0
go: downloading github.com/peterbourgon/ff/v3 v3.1.0
...

接下来，生成密钥对：

$ cosign generate-key-pair
Enter password for private key:
Enter again:
Private key written to cosign.key
Public key written to cosign.pub

使用以下命令为密钥对签名：

$ cosign sign -key cosign.key quay-server.example.com/user1/busybox:test
Enter password for private key:
Pushing signature to: quay-server.example.com/user1/busybox:sha256-ff13b8f6f289b92ec2913fa57c5dd0a874c3a7f8f149aabee50e3d01546473e3.sig

有些用户可能会遇到以下错误：

error: signing quay-server.example.com/user1/busybox:test: getting remote image: GET https://quay-server.example.com/v2/user1/busybox/manifests/test: UNAUTHORIZED: access to the requested resource is not authorized; map[]

由于 cosign 依赖于 ~/.docker/config.json 进行授权，因此您可能需要执行以下命令：

$ podman login --authfile ~/.docker/config.json quay-server.example.com
Username:
Password:
Login Succeeded!

您可以使用以下命令查看更新的授权配置：

$ cat ~/.docker/config.json
{
	"auths": {
		"quay-server.example.com": {
			"auth": "cXVheWFkbWluOnBhc3N3b3Jk"
		}
	}