Issue #540: Updated validate_2fa_vars.yml

Signed-off-by: abhishek-s-a <a_sa@dellteam.com>

control_plane/tools/roles/idrac_2fa/tasks/validate_2fa_vars.yml

@@ -76,10 +76,16 @@
           ipv4_static_dns1 | length < 1 or
           ipv4_static_dns2 | length < 1 or
           smtp_server_ip | length < 1 or
-          smtp_username | length < 1 or
-          smtp_password | length < 1 or
           use_email_address_2fa | length < 1 
 
+    - name: Validate SMTP parameters if smtp_authentication is enabled
+      fail:
+        msg: "{{ smtp_input_fail_msg }} when smtp_authentication is enabled"
+      when:
+        - smtp_authentication | lower == "enabled"
+        - smtp_username | length < 1 or
+          smtp_password | length < 1
+
     - name: Assert use_email_address_2fa value
       assert:
         that: '"@" in use_email_address_2fa'
@@ -93,4 +99,4 @@
       changed_when: false
       run_once: true
       when: "'$ANSIBLE_VAULT;' in config_content.stdout"
-  when: two_factor_authentication == "enabled"
+  when: two_factor_authentication == "enabled"