Adds a retry to the URL check whether ONLYOFFICE is available from the public internet

tasks/main.yml

@@ -56,8 +56,12 @@
   become: false
   uri:
     url: https://{{ onlyoffice_virtual_host }}
+    return_content: yes
     timeout: 300
     validate_certs: no
   register: url_check
   delegate_to: localhost
+  until: "'Document Server is running' in url_check.content"
+  retries: 5
+  delay: 10
   tags: health