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May 22, 2018 10:39
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lbaas_v3.yaml
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heat_template_version: 2015-10-15 | |
description: A Group of Load Balanced Servers | |
parameters: | |
app_port: | |
type: number | |
default: 8080 | |
description: Port used by the servers | |
flavor: | |
type: string | |
description: Flavor used for servers | |
constraints: | |
- custom_constraint: nova.flavor | |
image: | |
type: string | |
description: Image used for servers | |
constraints: | |
- custom_constraint: glance.image | |
lb_port: | |
type: number | |
default: 80 | |
description: Port used by the load balancer | |
private_network: | |
type: string | |
description: Network used by the servers | |
constraints: | |
- custom_constraint: neutron.network | |
public_network: | |
type: string | |
description: Network used by the load balancer | |
constraints: | |
- custom_constraint: neutron.network | |
subnet: | |
type: string | |
description: Subnet on which the load balancer will be located | |
constraints: | |
- custom_constraint: neutron.subnet | |
resources: | |
sec_group: | |
type: OS::Neutron::SecurityGroup | |
properties: | |
rules: | |
- remote_ip_prefix: 0.0.0.0/0 | |
protocol: tcp | |
port_range_min: { get_param: app_port } | |
port_range_max: { get_param: app_port } | |
# A ResourceGroup with a nested server template | |
# is a cleaner way of doing multiple servers. | |
# These are placed inline for the sake of the | |
# keeping the example in the App Catalog in a | |
# single template. | |
# | |
# A Resource Group would be as follows: | |
# | |
# group: | |
# type: OS::Heat::ResourceGroup | |
# properties: | |
# count: 2 | |
# resource_def: | |
# type: lb_server.yaml | |
# | |
# The lb_server template would create the | |
# server and member resources. | |
server1: | |
type: OS::Nova::Server | |
properties: | |
image: { get_param: image } | |
flavor: { get_param: flavor } | |
networks: [{ network: { get_param: private_network }}] | |
security_groups: [{ get_resource: sec_group }] | |
user_data_format: RAW | |
user_data: | |
str_replace: | |
template: | | |
#! /bin/sh -v | |
Body=$(hostname) | |
Response="HTTP/1.1 200 OK\r\nContent-Length: ${#Body}\r\n\r\n$Body" | |
while true ; do echo -e $Response | nc -llp PORT; done | |
params: | |
PORT: { get_param: app_port } | |
pool_member1: | |
type: OS::Neutron::LBaaS::PoolMember | |
properties: | |
pool: { get_resource: pool } | |
address: { get_attr: [ server1, first_address ]} | |
protocol_port: { get_param: app_port } | |
subnet: { get_param: subnet } | |
server2: | |
type: OS::Nova::Server | |
properties: | |
image: { get_param: image } | |
flavor: { get_param: flavor } | |
networks: [{ network: { get_param: private_network }}] | |
security_groups: [{ get_resource: sec_group }] | |
user_data_format: RAW | |
user_data: | |
str_replace: | |
template: | | |
#! /bin/sh -v | |
Body=$(hostname) | |
Response="HTTP/1.1 200 OK\r\nContent-Length: ${#Body}\r\n\r\n$Body" | |
while true ; do echo -e $Response | nc -llp PORT; done | |
params: | |
PORT: { get_param: app_port } | |
pool_member2: | |
type: OS::Neutron::LBaaS::PoolMember | |
properties: | |
pool: { get_resource: pool } | |
address: { get_attr: [ server2, first_address ]} | |
protocol_port: { get_param: app_port } | |
subnet: { get_param: subnet } | |
monitor: | |
type: OS::Neutron::LBaaS::HealthMonitor | |
properties: | |
delay: 3 | |
type: HTTP | |
timeout: 3 | |
max_retries: 3 | |
pool: { get_resource: pool } | |
pool: | |
type: OS::Neutron::LBaaS::Pool | |
properties: | |
lb_algorithm: ROUND_ROBIN | |
protocol: HTTP | |
listener: { get_resource: listener } | |
listener: | |
type: OS::Neutron::LBaaS::Listener | |
properties: | |
loadbalancer: { get_resource: loadbalancer } | |
protocol: HTTP | |
protocol_port: { get_param: lb_port } | |
loadbalancer: | |
type: OS::Neutron::LBaaS::LoadBalancer | |
properties: | |
vip_subnet: { get_param: subnet } | |
floating_ip: | |
type: OS::Neutron::FloatingIP | |
properties: | |
floating_network: { get_param: public_network } | |
port_id: { get_attr: [loadbalancer, vip_port_id ]} | |
outputs: | |
lburl: | |
value: | |
str_replace: | |
template: http://IP_ADDRESS:PORT | |
params: | |
IP_ADDRESS: { get_attr: [ floating_ip, floating_ip_address ] } | |
PORT: { get_param: lb_port } | |
description: > | |
This URL is the "external" URL that can be used to access the | |
load balancer. |
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