Accept multiple registries in DockerInsecureRegistryAddress

We allow using multiple registries (e.g. for OpenStack vs. Ceph
container images). We should allow it also in the insecure registry
configuration.

Change-Id: Icf4a51baf2a230b3fa0d5ced0e9cd1983cd93fb0
Closes-Bug: #1709310
Depends-On: I5cddd20a123a85516577bde1b793a30d43171285

puppet/services/docker.yaml

@@ -7,8 +7,9 @@ parameters:
   DockerInsecureRegistryAddress:
     description: Optional. The IP Address and Port of an insecure docker
                  namespace that will be configured in /etc/sysconfig/docker.
-    type: string
-    default: ''
+                 The value can be multiple addresses separated by commas.
+    type: comma_delimited_list
+    default: []
   EndpointMap:
     default: {}
     description: Mapping of service endpoint -> protocol. Typically set
@@ -37,7 +38,7 @@ parameters:
     type: json
 
 conditions:
-  insecure_registry_is_empty: {equals : [{get_param: DockerInsecureRegistryAddress}, '']}
+  insecure_registry_is_empty: {equals : [{get_param: DockerInsecureRegistryAddress}, []]}
 
 outputs:
   role_data:
@@ -48,11 +49,10 @@ outputs:
         if:
         - insecure_registry_is_empty
         - {}
-        - tripleo::profile::base::docker::insecure_registry_address: {get_param: DockerInsecureRegistryAddress}
+        - tripleo::profile::base::docker::insecure_registries: {get_param: DockerInsecureRegistryAddress}
       step_config: |
         include ::tripleo::profile::base::docker
       upgrade_tasks:
         - name: Install docker packages on upgrade if missing
           tags: step3
           yum: name=docker state=latest
-