Optimized safe options

roles/docker-discourse/templates/discourse_application.yml.j2

@@ -51,8 +51,10 @@ env:
   DISCOURSE_DEVELOPER_EMAILS:       {{users.administrator.email}}
 
   # Set Logo
+  {% if service_provider.platform.logo | bool %}
   DISCOURSE_LOGO_URL:       "{{ service_provider.platform.logo  }}"
   DISCOURSE_LOGO_SMALL_URL: "{{ service_provider.platform.logo  }}"
+  {% endif %}
 
   # SMTP ADDRESS, username, and password are required
   # WARNING the char '#' in SMTP password can cause problems!

roles/docker-listmonk/vars/main.yml

@@ -65,8 +65,9 @@ listmonk_settings:
 #  - key: "messengers"
 #    value: '[]'
 
-  - key: "app.logo_url"
-    value: '"{{ service_provider.platform.logo }}"'
+  - key:    "app.logo_url"
+    value:  '"{{ service_provider.platform.logo }}"'
+    when:   service_provider.platform.logo | bool
 
   - key: "app.site_name"
     value: '"{{ service_provider.company.titel }} Mailing list"'
@@ -115,8 +116,9 @@ listmonk_settings:
 #  - key: "app.concurrency"
 #    value: '10'
 
-  - key: "app.favicon_url"
-    value: '"{{ service_provider.platform.favicon }}"'
+  - key:    "app.favicon_url"
+    value:  '"{{ service_provider.platform.favicon }}"'
+    when:   service_provider.platform.favicon | bool
 
 #  - key: "bounce.postmark"
 #    value: '{"enabled": false, "password": "", "username": ""}'