senlin/examples/policies/scaling_policy_complex.spec

58 lines
1.7 KiB
Python

# Sample scaling policy that can be attached to a cluster
constraints:
# Min number of nodes to keep the cluster operational
min_size: 1
# Max number of nodes to cap resource consumption
max_size: 10
policies:
- condition:
# name of meter for testing
meter: cpu_util
# comparison operator, valid values include 'lt', 'gt', 'eq'
op: gt
# Threshold for testing
threshold: 50
# Length of each evaluation period in seconds
period: 60
# Number of evaluations to perform
evaluations: 1
adjustment:
# Adjustment type, valid values include:
# EXACT_CAPACITY, CHANGE_IN_CAPACITY, CHANGE_IN_PERCENTAGE
type: CHANGE_IN_CAPACITY
# A number that will be interpreted based on the type setting
number: 1
# When type is set CHNAGE_IN_PERCENTAGE, min_step specifies
# that the cluster size will be changed by at least the number
# of nodes specified here
min_step: 1
- condition:
# name of meter for testing
meter: cpu_util
# comparison operator, valid values include 'lt', 'gt', 'eq'
op: lt
# Threshold for testing
threshold: 15
# Length of each evaluation period in seconds
period: 60
# Number of evaluations to perform
evaluations: 1
adjustment:
# Adjustment type, valid values include:
# EXACT_CAPACITY, CHANGE_IN_CAPACITY, CHANGE_IN_PERCENTAGE
type: CHANGE_IN_CAPACITY
# A number that will be interpreted based on the type setting
number: 1
# When type is set CHNAGE_IN_PERCENTAGE, min_step specifies
# that the cluster size will be changed by at least the number
# of nodes specified here
min_step: 1