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tosca_definitions_version: tosca_simple_yaml_1_0
description: >
Template for deploying servers based on policies.
imports:
- ../custom_types/senlin_cluster_policies.yaml
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
my_port_1:
type: tosca.nodes.network.Port
requirements:
- link:
node: my_network_1
- binding:
node: my_server_1
my_network_1:
type: tosca.nodes.network.Network
properties:
network_name: net0
policies:
- cluster_scaling:
type: tosca.policies.Scaling.Cluster
description: Cluster node autoscaling
targets: [my_server_1]
triggers:
scale_out:
description: trigger
event_type:
type: tosca.events.resource.cpu.utilization
metrics: cpu_util
implementation: Ceilometer
condition:
constraint: utilization greater_than 50%
period: 60
evaluations: 1
method: average
action:
scale_out:
type: SCALE_OUT
implementation: Senlin.webhook
properties:
min_instances: 2
max_instances: 10
default_instances: 3
increment: 1
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