Docker中的Alpine Linux：如何在不使用密码的情况下ssh localhost？

Question

使用

在Docker中运行Alpine Linux

docker run -it alpine

在容器中执行以下命令：安装openssh，生成密钥，授权密钥，尝试连接：

apk add --no-cache --update openssh
/usr/bin/ssh-keygen -A  ## For Alpine only, not for Ubuntu
ssh-keygen -o -t rsa -b 4096 -f ~/.ssh/id_rsa -P ""
cat ~/.ssh/id_rsa.pub >>~/.ssh/authorized_keys; chmod 600 ~/.ssh/authorized_keys
/usr/sbin/sshd
ssh-keyscan -t rsa localhost >>~/.ssh/known_hosts; chmod 600 ~/.ssh/known_hosts
ssh -vv -oPasswordAuthentication=no localhost echo test

  

输出：

...
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug1: Trying private key: /root/.ssh/id_dsa
debug1: Trying private key: /root/.ssh/id_ecdsa
debug1: Trying private key: /root/.ssh/id_ed25519
debug1: Trying private key: /root/.ssh/id_xmss
debug2: we did not send a packet, disable method
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug2: we sent a keyboard-interactive packet, wait for reply
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
root@localhost: Permission denied (publickey,password,keyboard-interactive).

与Ubuntu docker run -it ubuntu相同，工作很好：

apt-get update -qyy && apt install -qyy --no-install-recommends 
openssh-server openssh-client ca-certificates
ssh-keygen -o -t rsa -b 4096 -f ~/.ssh/id_rsa -P ""
cat ~/.ssh/id_rsa.pub >>~/.ssh/authorized_keys; chmod 600 ~/.ssh/authorized_keys
mkdir -p /run/sshd  ## Ubuntu only, fix a bug
/usr/sbin/sshd
ssh-keyscan -t rsa localhost >>~/.ssh/known_hosts; chmod 600 ~/.ssh/known_hosts
ssh -vv -oPasswordAuthentication=no localhost echo test

  

输出

test

阿尔卑斯山怎么了？或使用我的命令序列到Alpine？

---

更新：这是通过 Mac上的Docker 使用的。

Upd2：@KamilCuk在一行中进行排序：
docker run -ti alpine sh -x -c 'apk add --no-cache --update openssh; /usr/bin/ssh-keygen -A; ssh-keygen -o -t rsa -b 4096 -f ~/.ssh/id_rsa -P ""; cat ~/.ssh/id_rsa.pub >>~/.ssh/authorized_keys; chmod 600 ~/.ssh/authorized_keys; /usr/sbin/sshd; ssh-keyscan -t rsa localhost >>~/.ssh/known_hosts; chmod 600 ~/.ssh/known_hosts; ssh -oPasswordAuthentication=no localhost echo test'