Docker volume mount includes invalid characters: If you intended to pass a host directory, use absolute path

I am having trouble with two-way folders with Docker.

    defaultCfg.Mounts = append(ContainerHostConfig.Mounts, mount.Mount{
        Type:   mount.TypeVolume,
        Source: fmt.Sprintf("/root%s", tmp),
        Target: fmt.Sprintf("%s", tmp),
    })

Source and target works when using bind (with CreateMountpoint being true on bind config), but on volume i have this error:

"failed to create container: Error response from daemon: create /root/tmp/metrics-60-1990068486: "/root/tmp/metrics-60-1990068486" includes invalid characters for a local volume name, only "[a-zA-Z0-9][a-zA-Z0-9_.-]" are allowed. If you intended to pass a host directory, use absolute path"

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"error is as descriptive as it can get"

"read the error"

"are you capable of reading"

If you intended to pass a host directory, use absolute path

isnt this absolute?

/root/tmp/metrics-60-1990068486

what is wrong?

>Solution :

Mounting a directory is called a bind mount, so you need to use mount.TypeBind instead of mount.TypeVolume.