第一次运行 alpine docker 容器并尝试安装 openssh 时,会发生以下情况:
ole@T:~$ docker run -it --rm alpine /bin/ash
/ # apk add openssh
WARNING: Ignoring APKINDEX.d3812b7e.tar.gz: No such file or directory
WARNING: Ignoring APKINDEX.bb2c5760.tar.gz: No such file or directory
ERROR: unsatisfiable constraints:
openssh (missing):
required by: world[openssh]
应该如何安装openssh?