fix the default data directory path

defaults/main.yml

@@ -19,7 +19,7 @@ psql_db_size_c: 170000000
 psql_listen_on_ext_int: False
 psql_use_alternate_data_dir: False
 # Deb/Ubuntu
-psql_data_dir: '/var/lib/postgresql/{{ psql_version }}'
+psql_data_dir: '/var/lib/postgresql/{{ psql_version }}/main'
 psql_conf_dir: '/etc/postgresql/{{ psql_version }}/main'
 psql_log_dir: /var/log/postgresql
 
@@ -117,9 +117,15 @@ psql_db_name: db_name
 psql_db_user: db_user
 psql_db_pwd: "We cannot save the password into the repository. Use another variable and change pgpass.j2 accordingly. Encrypt the file that contains the variable with ansible-vault"
 
+########
+#
+# Pgpool-II
+#
 # Those need to be installed on the postgresql server.
+#
+pgpool_fixed_version: '4.1.4'
 postgresql_pgpool_pkgs:
-  - 'postgresql-{{ psql_version }}-pgpool2'
+  - 'postgresql-{{ psql_version }}-pgpool2={{ pgpool_fixed_version }}'
 
 #psql_db_data:
   # Example of line needed to create a db, create the user that owns the db, manage the db accesses (used by iptables too). All the fields are mandatory.
@@ -132,7 +138,7 @@ postgresql_pgpool_pkgs:
 
 # pgpool-II
 pgpool_pkgs:
-  - pgpool2
+  - 'pgpool2={{ pgpool_fixed_version }}'
   - iputils-arping
 
 pgpool_el_pkgs: