d4science-ghn-cluster/group_vars/postgres_pgpool_dev/main.yml: Install all the required pgpool-II pieces.

postgresql/defaults/main.yml

@@ -48,7 +48,12 @@ 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
+pgpool_pkgs:
+  - 'postgresql-{{ psql_version }}-pgpool2'
+  - pgpool2
 
+# postgis
 postgres_install_gis_extensions: False
 postgres_gis_version: 2.1
 postgres_gis_pkgs:
@@ -75,7 +80,4 @@ pg_backup_use_nagios: "yes"
   # Example of line needed to manage the db accesses (used by iptables too), without creating the db and the user. Useful, for example, to give someone access to the postgresql db
   #- { name: '{{ psql_db_name }}', user: '{{ psql_db_user }}', allowed_hosts: [ 'xxx.xxx.xxx.xxx/32', 'yyy.yyy.yyy.yyy/32' ] }
 
-pgpool_pkgs:
-  - 'postgresql-{{ psql_version }}-pgpool2'
-