pull fedora images for osbs

Signed-off-by: Adam Miller <admiller@redhat.com>

playbooks/groups/osbs-master.yml

@@ -319,6 +319,10 @@
         dest: /etc/osbs/buildroot/atomic-reactor.tar.gz
         state: hard
 
+    - name: pull fedora required docker images
+      shell: "docker pull {{docker_registry}}/{{item}}"
+      with_items: "{{fedora_required_images}}"
+
     - name: pull openshift required docker images
       shell: "docker pull {{docker_registry}}/{{item}}:v{{origin_version}}"
       with_items: "{{openshift_required_images}}"