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tosca_definitions_version: tosca_simple_yaml_1_0
description: >
Template for deploying servers based on policies.
topology_template:
node_templates:
my_server_1:
type: tosca.nodes.Compute
capabilities:
host:
properties:
num_cpus: 2
disk_size: 10 GB
mem_size: 512 MB
os:
properties:
# host Operating System image properties
architecture: x86_64
type: Linux
distribution: RHEL
version: 6.5
policies:
- asg:
type: tosca.policies.Scaling
description: Simple node autoscaling
targets: [my_server_1]
properties:
min_instances: 2
max_instances: 10
default_instances: 3
increment: 1
cooldown: 60
- cpu_monitoring:
type: tosca.policies.Monitoring
description: Simple node monitoring
targets: [my_server_1]
triggers:
high_cpu_usage:
description: trigger
meter_name: cpu_util
condition:
constraint: utilization greater_than 60%
threshold: 60
period: 600
evaluations: 1
method: average
comparison_operator: gt
low_cpu_usage:
description: trigger
meter_name: cpu_util
condition:
constraint: utilization less_than 20%
threshold: 20
period: 600
evaluations: 1
method: average
comparison_operator: gt
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