报错

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initdb: error: directory "/var/lib/postgresql/data/pgdata" exists but is not empty
initdb: hint: If you want to create a new database system, either remove or empty the directory "/var/lib/postgresql/data/pgdata" or run initdb with an argument other than "/var/lib/postgresql/data/pgdata".
mkdir: can't create directory '/var/lib/postgresql/data/pgdata': Operation not permitted
mkdir: can't create directory '/var/lib/postgresql/data/pgdata': Operation not permitted
The files belonging to this database system will be owned by user "postgres".
This user must also own the server process.

思路

提升这个路径是有数据 /var/lib/postgresql/data/pgdata 才导致了失败，那么查看这个路径，提升没有此路径，猜测是docker容器绑定的路径，在Bind mounts里即可找到对应的真实路径，
找了半天在这里

解决

删掉真实路径下的内容即可