Each file (or directory) has an owner, a group, and a set of permissions. In a Unix environment, there are three aspects to file system security. The data/pg_xlog directory contains the write-ahead transaction log (also described in Chapter 19). OID to Table Mapping in the global DirectoryĮach of these files is explained in Chapter 19, 'General PostgreSQL Administration,' so I won't cover that information here. Table 21.1 shows how the OID values translate into table names. Like the data/base directory, the data/global directory contains a few files whose names are actually OID values. The data/global directory contains information that spans all databases in other words, the information in the global directory is independent of any particular database. Psql> select oid, datname from pg_database You can see the correspondence by executing the following query: If you are curious about the directory naming scheme, the numbers correspond to the OIDs (object ids) of the corresponding rows in the pg_database table. Notice that I have three subdirectories underneath the base directory?that's because I have three databases. The data/base directory is where your databases live. This snapshot shows a typical installation of PostgreSQL release 7.1.3. You may see more files and subdirectories if you are running a different version of PostgreSQL. The data directory contains three subdirectories: base, global, and pg_xlog. The directory structure of a PostgreSQL installation. Figure 21.1 gives you a look at the structure. Let's start by looking at the directory structure of a PostgreSQL installation. PostgreSQL uses the $PGDATA environment variable to find its data files. I'll refer to this last directory as $PGDATA. If you have a typical installation, you can expect to find data files: databases, configuration, and security information in / usr/local/pgsql/data. Executables (such as psql, initdb, and the postmaster) are often installed in the /usr/local/pgsql/bin directory. PostgreSQL is typically installed in the /usr/local/pgsql directory. None of the resources on the internet that say it should work have helped (so far).The first step in securing a PostgreSQL installation is to secure the actual data files that comprise each database. Is this a postgres issue? minikube issue? or both? Can’t figure out and spent more than couple of weeks trying to. Here’s the yaml section for postgres pod: spec: The pv and pvc are created successfully and bound. With an argument other than '/var/lib/postgresql/data'. The directory '/var/lib/postgresql/data' or run initdb If you want to create a new database system, either remove or empty Initdb: directory '/var/lib/postgresql/data' exists but is not empty The default text search configuration will be set to 'english'. The default database encoding has accordingly been set to 'UTF8'. The database cluster will be initialized with locale 'en_US.utf8'. This user must also own the server process. The files belonging to this database system will be owned by user “postgres”. Followed every tutorial blog to a T to get persistent volume created for postgres to work but keep getting the following error: I have started minikube with -mount -mount-string “/path/to/local/directory:/data” and kvm2 driver.

Configure postgresql data directory