fix permissions for base directory on lvm

tasks/storage.yml

@@ -1,5 +1,13 @@
 ---
 - block:
+    - name: Setup base folder and set permissions
+      file:
+        path: "{{ postgres_base_dir }}"
+        state: directory
+        owner: "{{ postgres_user }}"
+        group: "{{ postgres_group }}"
+        mode: 0700
+
     - name: Create volume group '{{ postgres_lvm_vg }}'
       lvg:
         vg: "{{ postgres_lvm_vg }}"