Merge pull request #2261 from edx/ormsbee/lti_passback_delay_config

Added LTI_AGGREGATE_SCORE_PASSBACK_DELAY, default of 15 mins (900s).

playbooks/roles/edxapp/defaults/main.yml

@@ -96,6 +96,8 @@ EDXAPP_OEE_PASSWORD: 'password'
 
 EDXAPP_ANALYTICS_API_KEY:  ""
 EDXAPP_LTI_USER_EMAIL_DOMAIN: "lti.example.com"
+# 900s, or 15 mins
+EDXAPP_LTI_AGGREGATE_SCORE_PASSBACK_DELAY: 900
 EDXAPP_PAYMENT_SUPPORT_EMAIL: "billing@example.com"
 EDXAPP_YOUTUBE_API_KEY: "PUT_YOUR_API_KEY_HERE"
 EDXAPP_ZENDESK_USER: ""
@@ -895,6 +897,7 @@ lms_env_config:
   EDXNOTES_PUBLIC_API: "{{ EDXAPP_EDXNOTES_PUBLIC_API }}"
   EDXNOTES_INTERNAL_API: "{{ EDXAPP_EDXNOTES_INTERNAL_API }}"
   LTI_USER_EMAIL_DOMAIN: "{{ EDXAPP_LTI_USER_EMAIL_DOMAIN }}"
+  LTI_AGGREGATE_SCORE_PASSBACK_DELAY: "{{ EDXAPP_LTI_AGGREGATE_SCORE_PASSBACK_DELAY }}"
   PROCTORING_SETTINGS: "{{ EDXAPP_PROCTORING_SETTINGS }}"
   CREDIT_HELP_LINK_URL: "{{ EDXAPP_CREDIT_HELP_LINK_URL }}"