Add support for current Redshift node types (#3328)

lib/ansible/modules/extras/cloud/amazon/redshift.py

@@ -38,7 +38,7 @@ options:
     description:
       - The node type of the cluster. Must be specified when command=create.
     required: false
-    choices: ['dw1.xlarge', 'dw1.8xlarge', 'dw2.large', 'dw2.8xlarge', ]
+    choices: ['ds1.xlarge', 'ds1.8xlarge', 'ds2.xlarge', 'ds2.8xlarge', 'dc1.large', 'dc1.8xlarge', 'dw1.xlarge', 'dw1.8xlarge', 'dw2.large', 'dw2.8xlarge']
   username:
     description:
       - Master database username. Used only when command=create.
@@ -160,7 +160,7 @@ EXAMPLES = '''
 # Basic cluster provisioning example
 - redshift: >
     command=create
-    node_type=dw1.xlarge
+    node_type=ds1.xlarge
     identifier=new_cluster
     username=cluster_admin
     password=1nsecure
@@ -430,7 +430,7 @@ def main():
     argument_spec.update(dict(
             command                             = dict(choices=['create', 'facts', 'delete', 'modify'], required=True),
             identifier                          = dict(required=True),
-            node_type                           = dict(choices=['dw1.xlarge', 'dw1.8xlarge', 'dw2.large', 'dw2.8xlarge', ], required=False),
+            node_type                           = dict(choices=['ds1.xlarge', 'ds1.8xlarge', 'ds2.xlarge', 'ds2.8xlarge', 'dc1.large', 'dc1.8xlarge', 'dw1.xlarge', 'dw1.8xlarge', 'dw2.large', 'dw2.8xlarge'], required=False),
             username                            = dict(required=False),
             password                            = dict(no_log=True, required=False),
             db_name                             = dict(require=False),