Removed quotes and added env variable to be specific.

roles/openshift_master/tasks/main.yml

@@ -132,13 +132,13 @@
     # This is an ugly hack to verify settings are in a file without modifying them with lineinfile.
     # The template file will stomp any other settings made.
   - name: check whether our docker-registry setting exists in the env file
-    command: "awk '/^OPENSHIFT_DEFAULT_REGISTRY=\'docker-registry.default.svc:5000\'/' /etc/sysconfig/{{ openshift.common.service_type }}-master"
+    command: "awk '/^OPENSHIFT_DEFAULT_REGISTRY=docker-registry.default.svc:5000/' /etc/sysconfig/{{ openshift.common.service_type }}-master"
     ignore_errors: true
     changed_when: false
     register: already_set
 
   - set_fact:
-      openshift_push_via_dns: "{{ (openshift_use_dnsmasq | default(true) and openshift.common.version_gte_3_6) or (already_set.stdout | match('docker-registry.default.svc:5000')) }}"
+      openshift_push_via_dns: "{{ (openshift_use_dnsmasq | default(true) and openshift.common.version_gte_3_6) or (already_set.stdout | match('OPENSHIFT_DEFAULT_REGISTRY=docker-registry.default.svc:5000')) }}"
 
 - name: Install the systemd units
   include: systemd_units.yml