openstack/vitrage
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Add Trove cluster capacity autoscaling example

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In response to low disk capacity on any cluster nodes an alarm is
raised on the whole cluster and Mistral workflow is triggered to
scale cluster capacity up.

Change-Id: Ie013b44199816fe2b65d0ebfc9b95f7b5324f863
Signed-off-by: Bartosz Zurkowski <b.zurkowski@samsung.com>
This commit is contained in:
Bartosz Zurkowski 2018-12-21 23:27:52 +01:00
parent 8124d1a419
commit 154b7c0070
1 changed files with 82 additions and 0 deletions
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82
etc/vitrage/templates.sample/database_cluster_capacity_autoscaling.yaml Normal file
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metadata:
version: 2
name: database-cluster-capacity-autoscaling
type: standard
description: Automatically scales the capacity of Trove database clusters in response to insufficient disk space alerts
definitions:
entities:
- entity:
category: RESOURCE
type: trove.cluster
template_id: trove_cluster
- entity:
category: RESOURCE
type: trove.instance
template_id: trove_instance
- entity:
category: ALARM
name: trove-instance-low-disk-space
template_id: trove_instance_low_disk
- entity:
category: ALARM
name: trove-cluster-low-disk-space
template_id: trove_cluster_low_disk
relationships:
- relationship:
source: trove_cluster
target: trove_instance
relationship_type: contains
template_id: trove_cluster_contains_instance
- relationship:
source: trove_instance_low_disk
target: trove_instance
relationship_type: on
template_id: low_disk_on_trove_instance
- relationship:
source: trove_cluster_low_disk
target: trove_cluster
relationship_type: on
template_id: low_disk_on_trove_cluster
scenarios:
- scenario:
condition: low_disk_on_trove_instance
actions:
- action:
action_type: set_state
properties:
state: SUBOPTIMAL
action_target:
target: trove_instance
- scenario:
condition: low_disk_on_trove_instance and trove_cluster_contains_instance
actions:
- action:
action_type: set_state
properties:
state: SUBOPTIMAL
action_target:
target: trove_cluster
- action:
action_type: raise_alarm
properties:
alarm_name: trove-cluster-low-disk-space
severity: CRITICAL
action_target:
target: trove_cluster
- scenario:
condition: low_disk_on_trove_instance and low_disk_on_trove_cluster and trove_cluster_contains_instance
actions:
- action:
action_type: add_causal_relationship
action_target:
source: trove_instance_low_disk
target: trove_cluster_low_disk
- scenario:
condition: low_disk_on_trove_instance and trove_cluster_contains_instance and low_disk_on_trove_cluster
actions:
- action:
action_type: execute_mistral
properties:
workflow: trove_resize_cluster_volume
input:
cluster_id: get_attr(trove_cluster,id)