Add passthrough configuration glue.

This provides a means for users to pass configuration through to the
machines they are deploying without us modelling that.

Change-Id: I7134eb0c6be2d5cb1795b2f03cfba4afb69dc837
blueprint: passthrough-config

1 files changed, 45 insertions, 0 deletions

diff --git a/nova-compute-instance.yaml b/nova-compute-instance.yaml
index 99c2e11c..71e47ccc 100644
--- a/nova-compute-instance.yaml
+++ b/nova-compute-instance.yaml
@@ -6,6 +6,43 @@ Parameters:
     Description: The password for the keystone admin account, used for monitoring, querying neutron etc.
     Type: String
     NoEcho: true
+  ExtraConfig:
+    Description: |
+      Additional configuration to inject into the cluster. The JSON should have
+      the following structure:
+        {"FILEKEY":
+          {"config":
+            [{"section": "SECTIONNAME",
+              "values":
+                [{"option": "OPTIONNAME",
+                  "value": "VALUENAME"
+                 }
+                ]
+             }
+            ]
+          }
+        }
+      For instance:
+        {"nova":
+          {"config":
+            [{"section": "default",
+              "values":
+                [{"option": "compute_manager",
+                  "value": "ironic.nova.compute.manager.ClusterComputeManager"
+                 }
+                ]
+             },
+             {"section": "cells",
+              "values":
+                [{"option": "driver",
+                  "value": "nova.cells.rpc_driver.CellsRPCDriver"
+                 }
+                ]
+             }
+            ]
+          }
+        }
+    Type: Json
   KeyName: 
     Description: Name of an existing EC2 KeyPair to enable SSH access to the instances
     Type: String
@@ -163,3 +200,11 @@ Resources:
         live_update_tenant_name: {Ref: LiveUpdateTenantName}
         nova_image: {Ref: NovaImage}
         live_update_image_id: {Ref: LiveUpdateComputeImage}
+  NovaCompute0Passthrough:
+    Type: OS::Heat::StructuredDeployment
+    Properties:
+      config: {Ref: NovaComputePassthrough}
+      server: {Ref: NovaCompute0}
+      signal_transport: NO_SIGNAL
+      input_values:
+        passthrough_config: {Ref: ExtraConfig}