Merge pull request #3370 from open-craft/haikuginger/stateless-playbook

Create stateless deploy playbook

playbooks/edx-stateless.yml

+---
+
+# Stateless app server configuration, designed to be used with external mysql,
+# mongo, rabbitmq, and elasticsearch services.
+
+- name: Configure instance(s)
+  hosts: all
+  become: True
+  gather_facts: True
+
+  vars:
+    migrate_db: 'yes'
+    openid_workaround: True
+    EDXAPP_LMS_NGINX_PORT: '80'
+    ENABLE_ECOMMERCE: False  # Disable ecommerce by default
+  roles:
+
+    # Ensure we have no known security vulnerabilities
+    - security
+
+    # Server setup
+    - swapfile
+
+    # Nginx reverse proxy
+    - role: nginx
+      nginx_sites:
+      - certs
+      - cms
+      - lms
+      - forum
+      - xqueue
+      nginx_default_sites:
+      - lms
+
+    # Main EdX application
+    # https://github.com/edx/edx-platform
+    - role: edxapp
+      celery_worker: True
+    - edxapp
+
+    # Discussion forums
+    # https://github.com/edx/cs_comments_service
+    - forum
+
+    # Notifications service
+    # https://github.com/edx/notifier
+    - role: notifier
+      NOTIFIER_DIGEST_TASK_INTERVAL: '5'
+
+    # XQueue interface for communicating with external grader services
+    # https://github.com/edx/xqueue
+    - role: xqueue
+      update_users: True
+
+    # Certificate generation
+    # https://github.com/edx/edx-certificates
+    - certs
+
+    # Email sending
+    - postfix_queue
+
+    # Ecommerce (optional)
+    # https://github.com/edx/ecommerce
+    - role: nginx
+      nginx_sites:
+      - ecommerce
+      when: ENABLE_ECOMMERCE
+    - role: ecommerce
+      when: ENABLE_ECOMMERCE
+    - role: ecomworker
+      when: ENABLE_ECOMMERCE
+
+    # memcached
+    - role: memcache
+      when: "'localhost' in ' '.join(EDXAPP_MEMCACHE)"
+
+    # Optional extras
+    - role: datadog
+      when: COMMON_ENABLE_DATADOG
+    - role: splunkforwarder
+      when: COMMON_ENABLE_SPLUNKFORWARDER
+    - role: newrelic
+      when: COMMON_ENABLE_NEWRELIC

playbooks/roles/edxapp/defaults/main.yml

@@ -955,6 +955,7 @@ generic_env_config:  &edxapp_generic_env
     limits: "{{ EDXAPP_CODE_JAIL_LIMITS }}"
     user: '{{ edxapp_sandbox_user }}'
   AFFILIATE_COOKIE_NAME: "{{ EDXAPP_AFFILIATE_COOKIE_NAME }}"
+  ELASTIC_SEARCH_CONFIG: "{{ EDXAPP_ELASTIC_SEARCH_CONFIG }}"
 
 lms_auth_config:
   <<: *edxapp_generic_auth
@@ -1017,7 +1018,6 @@ lms_env_config:
   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 }}"
-  ELASTIC_SEARCH_CONFIG: "{{ EDXAPP_ELASTIC_SEARCH_CONFIG }}"
   MAILCHIMP_NEW_USER_LIST_ID: "{{ EDXAPP_MAILCHIMP_NEW_USER_LIST_ID }}"
   CONTACT_MAILING_ADDRESS: "{{ EDXAPP_CONTACT_MAILING_ADDRESS }}"
   AUDIT_CERT_CUTOFF_DATE: "{{ EDXAPP_AUDIT_CERT_CUTOFF_DATE }}"