Add wp core update-db to finalize hook

roles/deploy/hooks/finalize-after.yml

@@ -11,7 +11,24 @@
   command: wp eval 'wp_clean_themes_cache(); switch_theme(get_stylesheet());'
   args:
     chdir: "{{ deploy_helper.new_release_path }}"
-  when: wp_installed.rc == 0
+  when: wp_installed | success
+
+- name: Update WP database
+  command: wp core update-db
+  args:
+    chdir: "{{ deploy_helper.new_release_path }}"
+  when: wp_installed | success and not project.multisite.enabled | default(false)
+
+- name: Warn about updating network database.
+  debug:
+    msg: "Updating the network database could take a long time with a large number of sites."
+  when: wp_installed | success and project.multisite.enabled | default(false)
+
+- name: Update WP network database
+  command: wp core update-db --network
+  args:
+    chdir: "{{ deploy_helper.new_release_path }}"
+  when: wp_installed | success and project.multisite.enabled | default(false)
 
 - name: Reload php5-fpm
   shell: sudo service php5-fpm reload