de990777bd
This removes usage of deprecated Ceilometer API from the hot tempaltes Marks as deprecated the cfn template. This doesn't update the openshift, mistral, senlin autoscaling/autohealing templates. Mainly because I don't have the knowledge to change where the custom metrics are send from Ceilometer-API to Gnocchi API. Change-Id: I4a617daf063fb1faf01c71762d6509cb00eed0b6
231 lines
7.6 KiB
YAML
231 lines
7.6 KiB
YAML
heat_template_version: 2013-05-23
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description: AutoScaling Wordpress
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parameters:
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image:
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type: string
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description: Image used for servers
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key:
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type: string
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description: SSH key to connect to the servers
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flavor:
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type: string
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description: flavor used by the web servers
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database_flavor:
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type: string
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description: flavor used by the db server
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network:
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type: string
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description: Network used by the server
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subnet_id:
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type: string
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description: subnet on which the load balancer will be located
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database_name:
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type: string
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description: Name of the wordpress DB
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default: wordpress
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database_user:
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type: string
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description: Name of the wordpress user
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default: wordpress
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external_network_id:
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type: string
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description: UUID of a Neutron external network
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resources:
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database_password:
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type: OS::Heat::RandomString
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database_root_password:
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type: OS::Heat::RandomString
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db:
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type: OS::Nova::Server
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properties:
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flavor: {get_param: database_flavor}
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image: {get_param: image}
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key_name: {get_param: key}
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networks: [{network: {get_param: network} }]
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user_data_format: RAW
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user_data:
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str_replace:
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template: |
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#!/bin/bash -v
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yum -y install mariadb mariadb-server
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systemctl enable mariadb.service
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systemctl start mariadb.service
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mysqladmin -u root password $db_rootpassword
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cat << EOF | mysql -u root --password=$db_rootpassword
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CREATE DATABASE $db_name;
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GRANT ALL PRIVILEGES ON $db_name.* TO "$db_user"@"%"
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IDENTIFIED BY "$db_password";
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FLUSH PRIVILEGES;
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EXIT
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EOF
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params:
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$db_rootpassword: {get_attr: [database_root_password, value]}
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$db_name: {get_param: database_name}
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$db_user: {get_param: database_user}
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$db_password: {get_attr: [database_password, value]}
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asg:
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type: OS::Heat::AutoScalingGroup
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properties:
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min_size: 1
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max_size: 3
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resource:
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type: lb_server.yaml
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properties:
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flavor: {get_param: flavor}
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image: {get_param: image}
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key_name: {get_param: key}
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network: {get_param: network}
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pool_id: {get_resource: pool}
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metadata: {"metering.stack": {get_param: "OS::stack_id"}}
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user_data:
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str_replace:
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template: |
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#!/bin/bash -v
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yum -y install httpd wordpress
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systemctl enable httpd.service
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systemctl start httpd.service
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setsebool -P httpd_can_network_connect_db=1
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sed -i "/Deny from All/d" /etc/httpd/conf.d/wordpress.conf
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sed -i "s/Require local/Require all granted/" /etc/httpd/conf.d/wordpress.conf
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sed -i s/database_name_here/$db_name/ /etc/wordpress/wp-config.php
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sed -i s/username_here/$db_user/ /etc/wordpress/wp-config.php
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sed -i s/password_here/$db_password/ /etc/wordpress/wp-config.php
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sed -i s/localhost/$db_host/ /etc/wordpress/wp-config.php
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systemctl restart httpd.service
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params:
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$db_name: {get_param: database_name}
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$db_user: {get_param: database_user}
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$db_password: {get_attr: [database_password, value]}
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$db_host: {get_attr: [db, first_address]}
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web_server_scaleup_policy:
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type: OS::Heat::ScalingPolicy
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properties:
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adjustment_type: change_in_capacity
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auto_scaling_group_id: {get_resource: asg}
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cooldown: 60
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scaling_adjustment: 1
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web_server_scaledown_policy:
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type: OS::Heat::ScalingPolicy
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properties:
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adjustment_type: change_in_capacity
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auto_scaling_group_id: {get_resource: asg}
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cooldown: 60
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scaling_adjustment: -1
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cpu_alarm_high:
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type: OS::Aodh::GnocchiAggregationByResourcesAlarm
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properties:
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description: Scale up if CPU > 80%
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metric: cpu_util
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aggregation_method: mean
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granularity: 300
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evaluation_periods: 1
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threshold: 80
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resource_type: instance
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comparison_operator: gt
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alarm_actions:
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- str_replace:
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template: trust+url
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params:
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url: {get_attr: [scaleup_policy, signal_url]}
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query:
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list_join:
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- ''
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- - {'=': {server_group: {get_param: "OS::stack_id"}}}
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cpu_alarm_low:
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type: OS::Aodh::GnocchiAggregationByResourcesAlarm
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properties:
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description: Scale down if CPU < 15% for 5 minutes
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metric: cpu_util
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aggregation_method: mean
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granularity: 300
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evaluation_periods: 1
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threshold: 15
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resource_type: instance
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comparison_operator: lt
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alarm_actions:
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- str_replace:
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template: trust+url
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params:
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url: {get_attr: [scaleup_policy, signal_url]}
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query:
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list_join:
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- ''
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- - {'=': {server_group: {get_param: "OS::stack_id"}}}
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monitor:
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type: OS::Neutron::HealthMonitor
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properties:
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type: TCP
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delay: 5
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max_retries: 5
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timeout: 5
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pool:
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type: OS::Neutron::Pool
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properties:
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protocol: HTTP
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monitors: [{get_resource: monitor}]
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subnet_id: {get_param: subnet_id}
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lb_method: ROUND_ROBIN
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vip:
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protocol_port: 80
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lb:
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type: OS::Neutron::LoadBalancer
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properties:
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protocol_port: 80
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pool_id: {get_resource: pool}
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# assign a floating ip address to the load balancer
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# pool.
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lb_floating:
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type: OS::Neutron::FloatingIP
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properties:
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floating_network_id: {get_param: external_network_id}
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port_id: {get_attr: [pool, vip, port_id]}
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outputs:
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scale_up_url:
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description: >
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This URL is the webhook to scale up the autoscaling group. You
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can invoke the scale-up operation by doing an HTTP POST to this
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URL; no body nor extra headers are needed.
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value: {get_attr: [web_server_scaleup_policy, alarm_url]}
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scale_dn_url:
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description: >
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This URL is the webhook to scale down the autoscaling group.
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You can invoke the scale-down operation by doing an HTTP POST to
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this URL; no body nor extra headers are needed.
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value: {get_attr: [web_server_scaledown_policy, alarm_url]}
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pool_ip_address:
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value: {get_attr: [pool, vip, address]}
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description: The IP address of the load balancing pool
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website_url:
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value:
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str_replace:
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template: http://host/wordpress/
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params:
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host: { get_attr: [lb_floating, floating_ip_address] }
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description: >
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This URL is the "external" URL that can be used to access the
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Wordpress site.
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ceilometer_query:
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value:
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str_replace:
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template: >
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ceilometer statistics -m cpu_util
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-q metadata.user_metadata.stack=stackval -p 600 -a avg
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params:
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stackval: { get_param: "OS::stack_id" }
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description: >
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This is a Ceilometer query for statistics on the cpu_util meter
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Samples about OS::Nova::Server instances in this stack. The -q
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parameter selects Samples according to the subject's metadata.
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When a VM's metadata includes an item of the form metering.X=Y,
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the corresponding Ceilometer resource has a metadata item of the
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form user_metadata.X=Y and samples about resources so tagged can
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be queried with a Ceilometer query term of the form
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metadata.user_metadata.X=Y. In this case the nested stacks give
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their VMs metadata that is passed as a nested stack parameter,
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and this stack passes a metadata of the form metering.stack=Y,
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where Y is this stack's ID.
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