add memcache setting for ecommerce to the anisble playbook

docker/build/ecommerce/ansible_overrides.yml

@@ -12,4 +12,6 @@ ECOMMERCE_DATABASES:
     HOST: 'db.{{ DOCKER_TLD  }}'
     PORT: '3306'
     ATOMIC_REQUESTS: true
-    CONN_MAX_AGE: 60
\ No newline at end of file
+    CONN_MAX_AGE: 60
+
+ECOMMERCE_MEMCACHE: ['edx.devstack.memcached:11211']

playbooks/roles/ecommerce/defaults/main.yml

@@ -20,6 +20,8 @@ ECOMMERCE_PIP_EXTRA_ARGS: "-i {{ COMMON_PYPI_MIRROR_URL }}"
 ECOMMERCE_NGINX_PORT: "18130"
 ECOMMERCE_SSL_NGINX_PORT: 48130
 
+ECOMMERCE_MEMCACHE: [ 'localhost:11211' ]
+
 ECOMMERCE_DEFAULT_DB_NAME: 'ecommerce'
 ECOMMERCE_DATABASE_USER: "ecomm001"
 ECOMMERCE_DATABASE_PASSWORD: "password"
@@ -220,6 +222,11 @@ ECOMMERCE_SERVICE_CONFIG:
   ENABLE_COMPREHENSIVE_THEMING: "{{ ECOMMERCE_ENABLE_COMPREHENSIVE_THEMING }}"
   DEFAULT_SITE_THEME: "{{ ECOMMERCE_DEFAULT_SITE_THEME }}"
 
+  CACHES:
+    default:
+      BACKEND: 'django.core.cache.backends.memcached.MemcachedCache'
+      KEY_PREFIX: 'ecommerce'
+      LOCATION: '{{ ECOMMERCE_MEMCACHE }}'
 
 ECOMMERCE_REPOS:
   - PROTOCOL: "{{ COMMON_GIT_PROTOCOL }}"