adds support for enabling data tiering

Author: aaronwalker

redis.cfhighlander.rb

@@ -44,6 +44,9 @@
         description: 'The number of clusters this replication group initially has'
     end
 
+    ComponentParam 'DataTieringEnabled', 'false', allowedValues: ['false', 'true'],
+      description: 'Enables DataTiering and requires InstanceType to be a r6gd type'
+
   end
 
 end

redis.cfndsl.rb

@@ -78,6 +78,8 @@
   replication_mode = external_parameters.fetch(:replication_mode, 'node_group')
   automatic_failover = external_parameters.fetch(:automatic_failover, true)
 
+  Condition('DataTieringEnabled', FnEquals(Ref(:DataTieringEnabled), 'true'))
+
   engine = external_parameters.fetch(:engine, 'redis')
 
   ElastiCache_ReplicationGroup(:ReplicationGroupRedis) {
@@ -94,6 +96,8 @@
     AutoMinorVersionUpgrade minor_upgrade
     AutomaticFailoverEnabled automatic_failover
 
+    DataTieringEnabled FnIf('DataTieringEnabled', Ref(:DataTieringEnabled), Ref('AWS::NoValue'))
+
     CacheNodeType Ref(:InstanceType)
     CacheParameterGroupName Ref(:ParameterGroupRedis)
     CacheSubnetGroupName Ref(:SubnetGroupRedis)

spec/cache-cluster_spec.rb

@@ -22,6 +22,7 @@
         "CacheNodeType" => {"Ref"=>"InstanceType"},
         "CacheParameterGroupName" => {"Ref"=>"ParameterGroupRedis"},
         "CacheSubnetGroupName" => {"Ref"=>"SubnetGroupRedis"},
+        "DataTieringEnabled" => {"Fn::If"=>["DataTieringEnabled", {"Ref"=>"DataTieringEnabled"}, {"Ref"=>"AWS::NoValue"}]},
         "Engine" => "redis",
         "NumCacheClusters" => {"Ref"=>"NumCacheClusters"},
         "ReplicationGroupDescription" => {"Fn::Sub"=>"${EnvironmentName}-redis"},

spec/clustered_spec.rb

@@ -22,6 +22,7 @@
         "CacheNodeType" => {"Ref"=>"InstanceType"},
         "CacheParameterGroupName" => {"Ref"=>"ParameterGroupRedis"},
         "CacheSubnetGroupName" => {"Ref"=>"SubnetGroupRedis"},
+        "DataTieringEnabled" => {"Fn::If"=>["DataTieringEnabled", {"Ref"=>"DataTieringEnabled"}, {"Ref"=>"AWS::NoValue"}]},
         "Engine" => "redis",
         "NumNodeGroups" => {"Ref"=>"NumNodeGroups"},
         "Port" => 1234,

spec/default_spec.rb

@@ -22,6 +22,7 @@
         "CacheNodeType" => {"Ref"=>"InstanceType"},
         "CacheParameterGroupName" => {"Ref"=>"ParameterGroupRedis"},
         "CacheSubnetGroupName" => {"Ref"=>"SubnetGroupRedis"},
+        "DataTieringEnabled" => {"Fn::If"=>["DataTieringEnabled", {"Ref"=>"DataTieringEnabled"}, {"Ref"=>"AWS::NoValue"}]},
         "Engine" => "redis",
         "NumNodeGroups" => {"Ref"=>"NumNodeGroups"},
         "ReplicasPerNodeGroup" => {"Ref"=>"ReplicasPerNodeGroup"},

spec/node-group_spec.rb

@@ -22,6 +22,7 @@
         "CacheNodeType" => {"Ref"=>"InstanceType"},
         "CacheParameterGroupName" => {"Ref"=>"ParameterGroupRedis"},
         "CacheSubnetGroupName" => {"Ref"=>"SubnetGroupRedis"},
+        "DataTieringEnabled" => {"Fn::If"=>["DataTieringEnabled", {"Ref"=>"DataTieringEnabled"}, {"Ref"=>"AWS::NoValue"}]},
         "Engine" => "redis",
         "NumNodeGroups" => {"Ref"=>"NumNodeGroups"},
         "ReplicasPerNodeGroup" => {"Ref"=>"ReplicasPerNodeGroup"},

spec/non-clustered_spec.rb

@@ -22,6 +22,7 @@
         "CacheNodeType" => {"Ref"=>"InstanceType"},
         "CacheParameterGroupName" => {"Ref"=>"ParameterGroupRedis"},
         "CacheSubnetGroupName" => {"Ref"=>"SubnetGroupRedis"},
+        "DataTieringEnabled" => {"Fn::If"=>["DataTieringEnabled", {"Ref"=>"DataTieringEnabled"}, {"Ref"=>"AWS::NoValue"}]},git
         "Engine" => "redis",
         "NumNodeGroups" => {"Ref"=>"NumNodeGroups"},
         "ReplicasPerNodeGroup" => {"Ref"=>"ReplicasPerNodeGroup"},