docker - DOCKER BUILDKIT：在构建时使用现有的秘密

Question

我发现的所有 docker buildkit 示例都引用了一个创建的秘密 txt 文件，该文件传递给 build 命令。我在尝试使用的管理器节点上有一个秘密：

$docker inspect myreadonly
[
    {
        "ID": "zjrjyl0j7hf6s3whs5obhzl51",
        "Version": {
            "Index": 11
        },
        "CreatedAt": "2021-09-23T16:53:17.841157766Z",
        "UpdatedAt": "2021-09-23T16:53:17.841157766Z",
        "Spec": {
            "Name": "myreadonly",
            "Labels": {}
        }
    }
]

然后这就是我得到的：

$ DOCKER_BUILDKIT=1 docker build --progress=plain --secret id=myreadonly,src=/run/secrets/myreadonly --no-cache .
could not parse secrets: [id=myreadonly,src=/run/secrets/myreadonly]: failed to stat /run/secrets/myreadonly: stat /run/secrets/myreadonly: no such file or directory