diff --git a/group_vars/dbservers/vars.yml b/group_vars/dbservers/vars.yml
index ef48fc4..9e396df 100644
--- a/group_vars/dbservers/vars.yml
+++ b/group_vars/dbservers/vars.yml
@@ -1,4 +1,5 @@
 # vim: ft=yaml.ansible
 # code: language=ansible
 ---
-db_data_root: "{{ encrypted_fs }}/db"
+postgresql_version: 14
+postgresql_pgdata: "{{ encrypted_fs }}/pgsql/{{ postgresql_version }}/data"
diff --git a/roles/postgresql/defaults/main.yml b/roles/postgresql/defaults/main.yml
new file mode 100644
index 0000000..6c93d02
--- /dev/null
+++ b/roles/postgresql/defaults/main.yml
@@ -0,0 +1,6 @@
+# vim: ft=yaml.ansible
+# code: language=ansible
+---
+postgresql_version: 14
+postgresql_pgdata: /var/lib/pgsql/{{ postgresql_version }}/data
+postgresql_service: postgresql-{{ postgresql_version }}
diff --git a/roles/postgresql/tasks/main.yml b/roles/postgresql/tasks/main.yml
new file mode 100644
index 0000000..604afdf
--- /dev/null
+++ b/roles/postgresql/tasks/main.yml
@@ -0,0 +1,22 @@
+# vim: ft=yaml.ansible
+# code: language=ansible
+---
+- name: Add PostgreSQL repository
+  ansible.builtin.dnf:
+    name: https://download.postgresql.org/pub/repos/yum/reporpms/EL-9-x86_64/pgdg-redhat-repo-latest.noarch.rpm
+    state: present
+
+- name: Disable built-in PostgreSQL module
+  community.general.ini_file:
+    path: /etc/dnf/modules.d/postgresql.module
+    section: postgresql
+    option: state
+    value: disabled
+    no_extra_spaces: true
+    create: false
+    state: present
+
+- name: Install PostgreSQL {{ postgresql_version }}
+  ansible.builtin.dnf:
+    name: postgresql{{ postgresql_version }}-server
+    state: present