Difference between revisions of "Heat Mistral resources usage examples"
| Line 5: | Line 5: | ||
--- | --- | ||
version: '2.0' | version: '2.0' | ||
| − | |||
create_vm: | create_vm: | ||
type: direct | type: direct | ||
| Line 14: | Line 13: | ||
output: | output: | ||
vm_id: $.vm_id | vm_id: $.vm_id | ||
| − | |||
tasks: | tasks: | ||
create_server: | create_server: | ||
| Line 22: | Line 20: | ||
on-success: | on-success: | ||
- check_server_exists | - check_server_exists | ||
| − | |||
check_server_exists: | check_server_exists: | ||
action: nova.servers_get server={$.vm_id} | action: nova.servers_get server={$.vm_id} | ||
| Line 29: | Line 26: | ||
on-success: | on-success: | ||
- wait_instance | - wait_instance | ||
| − | |||
wait_instance: | wait_instance: | ||
action: nova.servers_find id={$.vm_id} status='ACTIVE' | action: nova.servers_find id={$.vm_id} status='ACTIVE' | ||
| Line 41: | Line 37: | ||
heat_template_version: 2013-05-23 | heat_template_version: 2013-05-23 | ||
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parameters: | parameters: | ||
cron_pattern: | cron_pattern: | ||
type: string | type: string | ||
default: '54 15 25 * *' | default: '54 15 25 * *' | ||
| − | |||
resources: | resources: | ||
workflow: | workflow: | ||
| Line 53: | Line 47: | ||
definition: { get_file: nova_actions.yaml } | definition: { get_file: nova_actions.yaml } | ||
input: {"vm_name": "test_vm", "image_ref": "64200b6e-9c5e-46d7-a373-676e1335eb24", "flavor_ref": "84"} | input: {"vm_name": "test_vm", "image_ref": "64200b6e-9c5e-46d7-a373-676e1335eb24", "flavor_ref": "84"} | ||
| − | |||
trigger: | trigger: | ||
type: OS::Mistral::CronTrigger | type: OS::Mistral::CronTrigger | ||
| Line 59: | Line 52: | ||
pattern: { get_param: cron_pattern } | pattern: { get_param: cron_pattern } | ||
workflow: { get_attr: [workflow, available_workflows, create_vm] } | workflow: { get_attr: [workflow, available_workflows, create_vm] } | ||
| − | |||
outputs: | outputs: | ||
execution_time: | execution_time: | ||
value: { get_attr: [trigger, next_execution_time] } | value: { get_attr: [trigger, next_execution_time] } | ||
| − | |||
Revision as of 08:48, 26 February 2015
Case 1: Creating resources using Heat template and check that they are available in Mistral service.
1. Create workflow template file nova_actions.yaml . This workflow allows to create nova server.
--- version: '2.0' create_vm:
type: direct
input:
- vm_name
- image_ref
- flavor_ref
output:
vm_id: $.vm_id
tasks:
create_server:
action: nova.servers_create name={$.vm_name} image={$.image_ref} flavor={$.flavor_ref}
publish:
vm_id: $.id
on-success:
- check_server_exists
check_server_exists:
action: nova.servers_get server={$.vm_id}
publish:
server_exists: True
on-success:
- wait_instance
wait_instance:
action: nova.servers_find id={$.vm_id} status='ACTIVE'
policies:
retry:
delay: 5
count: 15
2. Create template with OS::Mistral::Workflow and OS::Mistral::CronTrigger resources (template.yaml).
heat_template_version: 2013-05-23 parameters:
cron_pattern: type: string default: '54 15 25 * *'
resources:
workflow:
type: OS::Mistral::Workflow
properties:
definition: { get_file: nova_actions.yaml }
input: {"vm_name": "test_vm", "image_ref": "64200b6e-9c5e-46d7-a373-676e1335eb24", "flavor_ref": "84"}
trigger:
type: OS::Mistral::CronTrigger
properties:
pattern: { get_param: cron_pattern }
workflow: { get_attr: [workflow, available_workflows, create_vm] }
outputs:
execution_time:
value: { get_attr: [trigger, next_execution_time] }
3. Create stack.
heat stack-create test1 -f template.yaml
4. Check that resources were created in Mistral.
mistral workflow-list
+--------------------------+--------+------------------------------+---------------------+------------+ | Name | Tags | Input | Created at | Updated at | +--------------------------+--------+------------------------------+---------------------+------------+ | std.create_instance | <none> | name, image_id, flavor_id... | 2015-01-26 00:00:49 | None | | std.delete_instance | <none> | instance_id | 2015-01-26 00:00:49 | None | | test1.workflow.create_vm | <none> | vm_name, image_ref, flavo... | 2015-01-26 22:04:12 | None | +--------------------------+--------+------------------------------+---------------------+------------+
mistral cron-trigger-list
+----------------------------+--------------+--------------------------+---------------------+---------------------+------------+ | Name | Pattern | Workflow | Next execution time | Created at | Updated at | +----------------------------+--------------+--------------------------+---------------------+---------------------+------------+ | test1-trigger-kqetnotnmvsx | 54 15 25 * * | test1.workflow.create_vm | 2015-02-25 15:54:00 | 2015-01-26 22:04:25 | None | +----------------------------+--------------+--------------------------+---------------------+---------------------+------------+
