diff --git a/changelogs/fragments/molecule.yml b/changelogs/fragments/molecule.yml
new file mode 100644
index 000000000..050dfb902
--- /dev/null
+++ b/changelogs/fragments/molecule.yml
@@ -0,0 +1,3 @@
+---
+minor_changes:
+  - "molecule: add tnsname configuration to shared inventory (oravirt#388)"
diff --git a/extensions/molecule/shared_config/inventory/group_vars/all/oracle_db.yml b/extensions/molecule/shared_config/inventory/group_vars/all/oracle_db.yml
index 6979dec01..7857591da 100644
--- a/extensions/molecule/shared_config/inventory/group_vars/all/oracle_db.yml
+++ b/extensions/molecule/shared_config/inventory/group_vars/all/oracle_db.yml
@@ -143,3 +143,18 @@ oracle_pdbs:
         maxsize: 4G
         content: permanent
         state: present
+
+_tnsnames_config_pdb_helper:
+  - key: "{{ oracle_pdbs[0]['pdb_name'] }}"
+    value:
+      connect:
+        service_name: "{{ oracle_pdbs[0]['pdb_name'] }}"
+      address:
+        - host: "{{ ansible_hostname }}"
+
+oracle_tnsnames_config: "{{ _tnsnames_config_pdb_helper | items2dict }}"
+
+tnsnames_installed:
+  - tnsname: "{{ oracle_pdbs[0]['pdb_name'] }}"
+    home: db19-si-ee
+    state: present