Add NovaDisableImageDownloadToRbd parameter

This exposes the nova workaround to disable downloading images from glance to
rbd (vs a cheap COW clone) when nova-compute and glance are not backed by the
same ceph cluster.

Related nova change: I069b6b1d28eaf1eee5c7fb8d0fdef9c0c229a1bf
Depends-On: I8329810d6c047c0d94e7b123e7cdc1263a7856cd

Change-Id: Ib5478e53eb1f216bf6924ff30ea8502cb8529d00

deployment/nova/nova-compute-container-puppet.yaml

@@ -492,6 +492,14 @@ parameters:
     default: ''
     tags:
       - role_specific
+  NovaDisableImageDownloadToRbd:
+    type: boolean
+    description: >
+      Refuse to boot an instance if it would require downloading from glance and
+      uploading to ceph instead of a COW clone.
+    default: false
+    tags:
+      - role_specific
 
   # DEPRECATED: the following options are deprecated and are currently maintained
   # for backwards compatibility. They will be removed in future release.
@@ -600,6 +608,7 @@ resources:
               nova::compute::libvirt::cpu_model_extra_flags: NovaLibvirtCPUModelExtraFlags
               nova_compute_opt_volumes: NovaComputeOptVolumes
               nova_compute_opt_env_vars: NovaComputeOptEnvVars
+              nova::workarounds::never_download_image_if_on_rbd: NovaDisableImageDownloadToRbd
             - values: {get_param: [RoleParameters]}
           - values:
               NovaVcpuPinSet: {get_param: NovaVcpuPinSet}
@@ -683,6 +692,7 @@ resources:
               NovaLibvirtCPUModelExtraFlags: {get_param: NovaLibvirtCPUModelExtraFlags}
               NovaComputeOptVolumes: {get_param: NovaComputeOptVolumes}
               NovaComputeOptEnvVars: {get_param: NovaComputeOptEnvVars}
+              NovaDisableImageDownloadToRbd: {get_param: NovaDisableImageDownloadToRbd}
 
 
 conditions:

environments/dcn-hci.yaml

@@ -38,6 +38,10 @@ parameter_defaults:
   # Type: boolean
   NovaCrossAZAttach: False
 
+  # Refuse to boot an instance if it would require downloading from glance and uploading to ceph instead of a COW clone.
+  # Type: boolean
+  NovaDisableImageDownloadToRbd: True
+
 resource_registry:
   OS::TripleO::Network::Ports::OVNDBsVipPort: ../network/ports/noop.yaml
   OS::TripleO::Network::Ports::RedisVipPort: ../network/ports/noop.yaml

environments/dcn.yaml

@@ -21,6 +21,10 @@ parameter_defaults:
   # Type: boolean
   NovaCrossAZAttach: False
 
+  # Refuse to boot an instance if it would require downloading from glance and uploading to ceph instead of a COW clone.
+  # Type: boolean
+  NovaDisableImageDownloadToRbd: True
+
 resource_registry:
   OS::TripleO::Network::Ports::OVNDBsVipPort: ../network/ports/noop.yaml
   OS::TripleO::Network::Ports::RedisVipPort: ../network/ports/noop.yaml

sample-env-generator/dcn.yaml

@@ -14,9 +14,13 @@ environments:
       deployment/nova/nova-base-puppet.yaml:
         parameters:
           - NovaCrossAZAttach
+      deployment/nova/nova-compute-container-puppet.yaml:
+        parameters:
+          - NovaDisableImageDownloadToRbd
     sample_values: &sample_values
       ManageNetworks: false
       NovaCrossAZAttach: false
+      NovaDisableImageDownloadToRbd: true
     resource_registry: &dcn_resource_registry
       OS::TripleO::Network::Ports::RedisVipPort: ../network/ports/noop.yaml
       OS::TripleO::Network::Ports::OVNDBsVipPort: ../network/ports/noop.yaml