updated variables

tasks/devportal_postgres.yml

diff --git a/tasks/devportal_postgres.yml b/tasks/devportal_postgres.yml
index 0fa0271..da96efd 100644
--- a/tasks/devportal_postgres.yml
+++ b/tasks/devportal_postgres.yml
@@ -12,4 +12,4 @@
       value: "{{ hostvars[groups['dp-db-pgstandby'][0]][interface_name].ipv4.address }}"
     when: db_pgstandby_ip is not defined
 
-  when: groups['dp-db-pgmaster'] is defined and groups['dp-db-pgstandby'] is defined and interface_name is defined
+  when: groups['dp-db-pgmaster'][0][interface_name] is defined and groups['dp-db-pgstandby'][0][interface_name]