Implemented Dynamic Provisioning of PersistentVolumes with cinder

When kubespray is deployed on OpenStack, the kube-controller-manager is now aware of the cluster and can create new cinder volumes automatically if the PersistentVolumeClaims are annotated accordingly.
Note that this is an alpha feature of kubernetes 1.2

roles/kubernetes/master/templates/manifests/kube-controller-manager.manifest.j2

@@ -16,6 +16,10 @@ spec:
     - --service-account-private-key-file={{ kube_cert_dir }}/apiserver-key.pem
     - --root-ca-file={{ kube_cert_dir }}/ca.pem
     - --v={{ kube_log_level | default('2') }}
+{% if cloud_provider is defined and cloud_provider == "openstack" %}
+    - --cloud-provider=openstack
+    - --cloud-config={{ kube_config_dir }}/cloud_config
+{% endif %}
     livenessProbe:
       httpGet:
         host: 127.0.0.1
@@ -30,6 +34,11 @@ spec:
     - mountPath: /etc/ssl/certs
       name: ssl-certs-host
       readOnly: true
+{% if cloud_provider is defined and cloud_provider == "openstack" %}
+    - mountPath: {{ kube_config_dir }}/cloud_config
+      name: cloudconfig
+      readOnly: true
+{% endif %}
   volumes:
   - hostPath:
       path: {{ kube_cert_dir }}
@@ -37,3 +46,8 @@ spec:
   - hostPath:
       path: /usr/share/ca-certificates
     name: ssl-certs-host
+{% if cloud_provider is defined and cloud_provider == "openstack" %}
+  - hostPath:
+      path: {{ kube_config_dir }}/cloud_config
+    name: cloudconfig
+{% endif %}