Add boot-from-volume support

In some clouds ephemeral storage is much slower than volume storage,
so we want to be able to use volume storage for the performance-
sensitive instances.  This change adds new environments to enable
that and updates build-nodes-json to handle the case where there is
no image associated with an instance.

doc/source/deploy/environment-index.rst

@@ -61,6 +61,15 @@ Base Configuration Options
 
 **Description:** Basic configuration options needed for all OVB environments
 
+Boot Undercloud and Baremetal Instances from Volume
+---------------------------------------------------
+
+**File:** environments/boot-from-volume.yaml
+
+**Description:** Boot the undercloud and baremetal instances from Cinder volumes instead of
+ephemeral storage.
+
+
 Create a Private Network
 ------------------------
 

environments/boot-from-volume.yaml

@@ -0,0 +1,22 @@
+# *******************************************************************
+# This file was created automatically by the sample environment
+# generator. Developers should use `tox -e genconfig` to update it.
+# Users are recommended to make changes to a copy of the file instead
+# of the original, if any customizations are needed.
+# *******************************************************************
+# title: Boot Undercloud and Baremetal Instances from Volume
+# description: |
+#   Boot the undercloud and baremetal instances from Cinder volumes instead of
+#   ephemeral storage.
+parameter_defaults:
+  # The size of the baremetal instance volumes
+  # Type: number
+  baremetal_volume_size: 41
+
+  # The size of the volume for the undercloud instance
+  # Type: number
+  undercloud_volume_size: 50
+
+resource_registry:
+  OS::OVB::ServerPair: ../templates/virtual-baremetal-servers-volume.yaml
+  OS::OVB::UndercloudEnvironment: ../templates/undercloud-volume.yaml

openstack_virtual_baremetal/build_nodes_json.py

@@ -148,6 +148,9 @@ def _build_nodes(nova, glance, bmc_ports, bm_ports, provision_net,
 
         # If a node has uefi firmware ironic needs to be aware of this, in nova
         # this is set using a image property called "hw_firmware_type"
+        # NOTE(bnemec): Boot from volume does not have an image associated with
+        # the instance so we can't do this.
+        if baremetal.image:
             if not cache.get(baremetal.image['id']):
                 cache[baremetal.image['id']] = glance.images.get(baremetal.image['id'])
             image = cache.get(baremetal.image['id'])

sample-env-generator/environments.yaml

@@ -143,3 +143,19 @@ environments:
           - undercloud_floating_ip_id
     resource_registry:
       OS::OVB::UndercloudFloating: ../templates/undercloud-floating-existing.yaml
+  -
+    name: boot-from-volume
+    title: Boot Undercloud and Baremetal Instances from Volume
+    description: |
+      Boot the undercloud and baremetal instances from Cinder volumes instead of
+      ephemeral storage.
+    files:
+      templates/undercloud-volume.yaml:
+        parameters:
+          - undercloud_volume_size
+      templates/virtual-baremetal-servers-volume.yaml:
+        parameters:
+          - baremetal_volume_size
+    resource_registry:
+      OS::OVB::UndercloudEnvironment: ../templates/undercloud-volume.yaml
+      OS::OVB::ServerPair: ../templates/virtual-baremetal-servers-volume.yaml

templates/undercloud-volume.yaml

@@ -0,0 +1,75 @@
+heat_template_version: 2015-04-30
+
+parameters:
+  undercloud_flavor:
+    type: string
+  undercloud_image:
+    type: string
+  key_name:
+    type: string
+  undercloud_name:
+    type: string
+  undercloud_user_data_format:
+    type: string
+  undercloud_user_data:
+    type: string
+  undercloud_volume_size:
+    type: number
+    default: 50
+    description: The size of the volume for the undercloud instance
+  private_net:
+    type: string
+  provision_net:
+    type: string
+  public_net:
+    type: string
+  external_net:
+    type: string
+
+resources:
+  undercloud_ports:
+    type: OS::OVB::UndercloudPorts
+    properties:
+      undercloud_name: {get_param: undercloud_name}
+      private_net: {get_param: private_net}
+      provision_net: {get_param: provision_net}
+      public_net: {get_param: public_net}
+
+  undercloud_volume:
+    type: OS::Cinder::Volume
+    properties:
+      name: {get_param: undercloud_name}
+      image: {get_param: undercloud_image}
+      size: {get_param: undercloud_volume_size}
+
+  undercloud_server:
+    type: OS::Nova::Server
+    depends_on: undercloud_volume
+    properties:
+      flavor: {get_param: undercloud_flavor}
+      key_name: {get_param: key_name}
+      networks: {get_attr: [undercloud_ports, ports]}
+      name: {get_param: undercloud_name}
+      user_data_format: {get_param: undercloud_user_data_format}
+      user_data: {get_param: undercloud_user_data}
+      block_device_mapping:
+        - device_name: vda
+          volume_id: {get_resource: undercloud_volume}
+
+  undercloud_floating_ip:
+    type: OS::OVB::UndercloudFloating
+    properties:
+      external_net: {get_param: external_net}
+      undercloud_port:
+        get_attr:
+        - undercloud_server
+        - addresses
+        - {get_param: private_net}
+        - 0
+        - port
+
+outputs:
+  undercloud_host_floating_ip:
+    description: "floating ip of the undercloud instance"
+    value:
+      get_attr: [undercloud_floating_ip, undercloud_host]

templates/virtual-baremetal-servers-volume.yaml

@@ -0,0 +1,70 @@
+heat_template_version: 2014-10-16
+
+parameters:
+
+  baremetal_flavor:
+    type: string
+
+  baremetal_image:
+    type: string
+
+  baremetal_volume_size:
+    type: number
+    default: 41
+    description: The size of the baremetal instance volumes
+
+  key_name:
+    type: string
+
+  baremetal_prefix:
+    type: string
+
+  provision_net:
+    type: string
+
+  public_net:
+    type: string
+
+  suffix:
+    type: string
+
+resources:
+
+  baremetal_ports:
+    type: OS::OVB::BaremetalPorts
+    properties:
+      suffix: {get_param: suffix}
+      baremetal_prefix: {get_param: baremetal_prefix}
+      provision_net: {get_param: provision_net}
+      public_net: {get_param: public_net}
+
+  baremetal_volume:
+    type: OS::Cinder::Volume
+    properties:
+      name:
+        list_join:
+        - ''
+        - - {get_param: baremetal_prefix}
+          - {get_param: suffix}
+      image: {get_param: baremetal_image}
+      size: {get_param: baremetal_volume_size}
+
+  baremetal_server:
+    type: OS::Nova::Server
+    properties:
+      flavor: {get_param: baremetal_flavor}
+      config_drive: false
+      key_name: {get_param: key_name}
+      networks: {get_attr: [baremetal_ports, ports]}
+      block_device_mapping:
+        - device_name: vda
+          volume_id: {get_resource: baremetal_volume}
+      name:
+        list_join:
+        - ''
+        - - {get_param: baremetal_prefix}
+          - {get_param: suffix}
+
+outputs:
+  bmc_nic:
+    value: {port: {get_resource: bmc_port}}