Changed repository pull to warning if not successfull due to github.com down

roles/server_docker-elk/tasks/main.yml

@@ -30,6 +30,13 @@
     dest: "{{docker_elk_compose_path}}"
     update: yes
   notify: recreate server_docker-elk
+  register: git_result
+  ignore_errors: true
+
+- name: Warn if repo is not reachable
+  debug:
+    msg: "Warning: Repository is not reachable."
+  when: git_result.failed
 
 - name: copy docker-compose.yml
   template: src=docker-compose.yml.j2 dest={{docker_elk_compose_path}}docker-compose.yml