Docker：创建Postgresql容器时忽略权限

Question

I created postgres container by run command in docker:

 docker run  --name=pg-docker -p 5433:5432 -e POSTGRES_USER=postgres -e POSTGRES_PASSWORD=s123 postgres:11.5-alpine   

In pg-docker container /var/lib/postgresql/data has this permissions:

/ # ls -la $PGDATA
total 128
drwx------   19 postgres postgres      4096 Sep  2 10:44 .
drwxr-xr-x    1 postgres postgres      4096 Aug 21 00:46 ..
-rw-------    1 postgres postgres         3 Sep  2 10:44 PG_VERSION
drwx------    5 postgres postgres      4096 Sep  2 10:44 base
drwx------    2 postgres postgres      4096 Sep  2 10:44 global
drwx------    2 postgres postgres      4096 Sep  2 10:44 pg_commit_ts
drwx------    2 postgres postgres      4096 Sep  2 10:44 pg_dynshmem
-rw-------    1 postgres postgres      4535 Sep  2 10:44 pg_hba.conf
-rw-------    1 postgres postgres      1636 Sep  2 10:44 pg_ident.conf
drwx------    4 postgres postgres      4096 Sep  2 10:44 pg_logical
drwx------    4 postgres postgres      4096 Sep  2 10:44 pg_multixact
drwx------    2 postgres postgres      4096 Sep  2 10:44 pg_notify
drwx------    2 postgres postgres      4096 Sep  2 10:44 pg_replslot
drwx------    2 postgres postgres      4096 Sep  2 10:44 pg_serial
drwx------    2 postgres postgres      4096 Sep  2 10:44 pg_snapshots
drwx------    2 postgres postgres      4096 Sep  2 10:44 pg_stat
drwx------    2 postgres postgres      4096 Sep  2 10:45 pg_stat_tmp
drwx------    2 postgres postgres      4096 Sep  2 10:44 pg_subtrans
drwx------    2 postgres postgres      4096 Sep  2 10:44 pg_tblspc
drwx------    2 postgres postgres      4096 Sep  2 10:44 pg_twophase
drwx------    3 postgres postgres      4096 Sep  2 10:44 pg_wal
drwx------    2 postgres postgres      4096 Sep  2 10:44 pg_xact
-rw-------    1 postgres postgres        88 Sep  2 10:44 postgresql.auto.conf
-rw-------    1 postgres postgres     23841 Sep  2 10:44 postgresql.conf
-rw-------    1 postgres postgres        24 Sep  2 10:44 postmaster.opts
-rw-------    1 postgres postgres        94 Sep  2 10:44 postmaster.pid
/ # echo $PGDATA
/var/lib/postgresql/data   

and it's log says The files belonging to this database system will be owned by user "postgres". This user must also own the server process. The files belonging to this database system will be owned by user "postgres". This user must also own the server process.

Now when i want to use mount binding when created docker i got:

running bootstrap script ... 2019-08-31 13:34:38.428 UTC [47] FATAL:  data directory "/var/lib/postgresql/data" has wrong ownership
2019-08-31 13:34:38.428 UTC [47] HINT:  The server must be started by the user that owns the data directory.
child process exited with exit code 1
initdb: removing contents of data directory "/var/lib/postgresql/data"                      

So i decided to ignore this permissions to send out data directory from container to host. I think i should write commend in dockerfile .What is your suggestion ? I have no idea to implemented ignore permission!

Answer 1

使用此命令在Linux上为我工作，也许这是Windows特定的问题？

docker run --name=pg-docker -p 5433:5432 -e POSTGRES_USER=postgres -e POSTGRES_PASSWORD=s123 -v /full/path/to/db_volumes/on/host/machine:/var/lib/postgresql/data postgres:11.5-alpine