Merge pull request #1320 from rsmitty/centos-cert-fix

check if cloud_provider is defined

roles/kubernetes/master/templates/manifests/kube-apiserver.manifest.j2

@@ -105,7 +105,7 @@ spec:
     - mountPath: {{ etcd_cert_dir }}
       name: etcd-certs
       readOnly: true
-{% if cloud_provider == 'aws' and ansible_os_family == 'RedHat' %}
+{% if cloud_provider is defined and cloud_provider == 'aws' and ansible_os_family == 'RedHat' %}
     - mountPath: /etc/ssl/certs/ca-bundle.crt
       name: rhel-ca-bundle
       readOnly: true
@@ -120,7 +120,7 @@ spec:
   - hostPath:
       path: {{ etcd_cert_dir }}
     name: etcd-certs
-{% if cloud_provider == 'aws' and ansible_os_family == 'RedHat' %}
+{% if cloud_provider is defined and cloud_provider == 'aws' and ansible_os_family == 'RedHat' %}
   - hostPath:
       path: /etc/ssl/certs/ca-bundle.crt
     name: rhel-ca-bundle