Add clone vm example

Add clone vm example into mistral-extra

Co-Authored-By: Lingxian Kong <anlin.kong@gmail.com>
Change-Id: Ibe8558cafb334a25db2455157f22170b725a08d3
This commit is contained in:
hnyang 2016-11-12 15:34:19 +08:00
parent d50ce0da4f
commit d8f4085ef4
7 changed files with 212 additions and 0 deletions

View File

@ -0,0 +1,55 @@
=======================
Cloning virtual machine
=======================
Workflow ``clone_vm`` defines the process of creating a new VM based on
existing VM which was created using bootable volume (and may have other
additional volumes). It's also a good example of using sub-workflows in one
workflow.
To run the example:
1. Create sub-workflows ``clone_volume.yaml`` and
``boot_vm_from_volume.yaml``::
mistral workflow-create clone_volume.yaml
mistral workflow-create boot_vm_from_volume.yaml
2. Create workflow ``clone_vm.yaml``::
mistral workflow-create clone_vm.yaml
3. Create ``input.json`` file containing workflow input parameters as follows::
{
"vm_name": "new_vm",
"flavor_ref": "1",
"source_root_vol_id": "1969299a-4c45-4900-bfe0-5ac65c1f2211",
"root_vol_name": "new_root_vol",
"root_vol_size": 1,
"additional_volumes": [
{
"vol_name": "new_user_vol_1"
"vol_size": 1,
"source_vol_id": "94391f69-a2f7-4406-b602-86e0b421d519"
},
{
"vol_name": "new_user_vol_2"
"vol_size": 1,
"source_vol_id": "262b37ab-86f1-4be5-ada2-645898400584"
}
]
}
5. Start workflow::
mistral execution-create clone_vm input.json
6. Get execution status by using execution id from the previous command
output::
mistral execution-get <execution_id>
7. Make sure that a virtual machine with a bootable volume and two additional
volumes has been created successfully. It can be done by opening Horizon UI
or using Nova client (python-novaclient).

View File

@ -0,0 +1,33 @@
---
version: '2.0'
boot_vm_from_volume:
description: Create a virtual machine from a bootable volume
type: direct
input:
- vm_name
- block_device_mapping_v2
- flavor_ref
- image
output:
vm_id: <% $.vm_id %>
tasks:
create_server:
action: nova.servers_create
input:
name: <% $.vm_name %>
block_device_mapping_v2: <% $.block_device_mapping_v2 %>
flavor: <% $.flavor_ref %>
image: <% $.image %>
publish:
vm_id: <% task(create_server).result.id %>
on-success:
- wait_for_instance
wait_for_instance:
action: nova.servers_find id=<% $.vm_id %> status='ACTIVE'
retry:
delay: 10
count: 5

View File

@ -0,0 +1,75 @@
---
version: 2.0
clone_vm:
type: direct
description: Create a virtual machine by cloning an existing one. 1.clone system volume 2.set the system volume to bootable 3.create a new instance from the new bootable system volume 4.clone user volumes 5.attach user volumes to the new instance
input:
- vm_name #name of the new instance
- flavor_ref #flavor of the new instance
- source_root_vol_id #root volume id of the source instance
- root_vol_name #root volume name of the new instance
- root_vol_size #root volume size of the new instance
- additional_volumes:
- vol_name #volume name of the new instance
- vol_size #volume size of the new instance
- source_vol_id #source volume id of the source instance
tasks:
clone_root_volume:
description: Create a new volume from root volume of source vm.
workflow: clone_volume
input:
size: <% $.root_vol_size %>
source_volid: <% $.source_root_vol_id %>
name: <% $.root_vol_name %>
publish:
new_root_vol_id: <% task(clone_root_volume).result.vol_id %>
on-success:
- set_volume_bootable
set_volume_bootable:
action: cinder.volumes_set_bootable volume=<% $.new_root_vol_id %> flag=true
on-success:
- create_new_vm
create_new_vm:
description: Boot a new instance from new bootable volume
workflow: boot_vm_from_volume
input:
image: ""
vm_name: <% $.vm_name %>
flavor_ref: <% $.flavor_ref %>
block_device_mapping_v2:
- source_type: "volume"
destination_type: "volume"
delete_on_termination: "FALSE"
boot_index: "0"
uuid: <% $.new_root_vol_id %>
publish:
new_vm_id: <% task(create_new_vm).result.vm_id %>
on-success:
- clone_additional_volumes
clone_additional_volumes:
description: Create new volumes from existed ones one by one
with-items: volume in <% $.additional_volumes %>
workflow: clone_volume
input:
source_volid: <% ($.volume).source_vol_id %>
size: <% ($.volume).vol_size %>
name: <% ($.volume).vol_name %>
publish:
additional_vol_ids: <% task(clone_additional_volumes).result.vol_id %>
on-success:
- attach_volume
attach_volume:
description: Attach additional volumes to the instance
with-items: vol_id in <% $.additional_vol_ids %>
action: nova.volumes_create_server_volume
input:
server_id: <% $.new_vm_id %>
volume_id: <% $.vol_id %>
device: null

View File

@ -0,0 +1,31 @@
---
version: '2.0'
clone_volume:
description: Create a new volume by cloning an existing one
type: direct
input:
- source_volid # ID of the source volume
- name # name of the new volume
- size # size of the new volume
output:
vol_id: <% $.vol_id %>
tasks:
create_volume:
action: cinder.volumes_create
input:
name: <% $.name %>
size: <% $.size %>
source_volid: <% $.source_volid %>
publish:
vol_id: <% task(create_volume).result.id %>
on-success:
- wait_for_volume
wait_for_volume:
action: cinder.volumes_find id=<% $.vol_id %> status='available'
retry:
delay: 5
count: 15

View File

@ -0,0 +1,18 @@
{
"vm_name":"new_vm",
"flavor_ref":"1",
"source_root_vol_id":"1969299a-4c45-4900-bfe0-5ac65c1f2211",
"root_vol_name":"new_sys_vol",
"root_vol_size":1,
"additional_volumes":
[{
"vol_size":1,
"source_vol_id":"94391f69-a2f7-4406-b602-86e0b421d519",
"vol_name":"new_user_vol_1"
},
{
"vol_size":1,
"source_vol_id":"262b37ab-86f1-4be5-ada2-645898400584",
"vol_name":"new_user_vol_2"
}]
}