Login to docker repo is now needed.

common.yml

@@ -1,5 +1,11 @@
 ---
 - hosts: all
   become: True
+  vars_prompt:
+    - name: "docker_user"
+      prompt: "What is your p number?"
+    - name: "docker_pass"
+      prompt: "What is your password?"
+      private: yes
   roles:
       - common

roles/common/tasks/main.yml

@@ -27,3 +27,10 @@
     group: root
 
 - import_tasks: docker.yml
+
+
+- name: Log into DockerHub
+  docker_login:
+    registry: registry.webhosting.rug.nl
+    username: "{{ docker_user }}"
+    password: "{{ docker_pass }}"