DCD-621: externalizes db type based in dbconfig.xml for Jira

roles/jira_config/molecule/default/playbook.yml

@@ -23,6 +23,7 @@
     atl_db_removeabandonedtimeout: 1111
     atl_db_testwhileidle: 'false'
     atl_db_testonborrow: 'true'
+    atl_db_type: 'postgres96'
 
   roles:
     - role: linux_common

roles/jira_config/molecule/default/tests/test_default.py

@@ -10,6 +10,7 @@ def test_dbconfig_file(host):
     f = host.file('/var/atlassian/application-data/jira/dbconfig.xml')
     assert f.exists
     assert f.user == 'jira'
+    assert f.contains("<database-type>postgres96</database-type>")
     assert f.contains("<driver-class>org.postgresql.Driver</driver-class>")
     assert f.contains("<username>atljira</username>")
     assert f.contains("<password>molecule_password</password>")