Hi All,
I am trying to implement autoscaling using the template attached for multiple
neutron networks.
While creating the server in the webservergroup, it is failing by showing the
below error :
------
web_server_group | c6189de2-d748-44f2-9b60-0d2e708e1d1f | Error: Resource
CREATE failed: Error: Resource CREATE failed: BadRequest: Multiple possible
networks found
--------
I have attached the template to this mail. Please check it and let me know
how to specify a network ID in the websergroup .
Thanks
Kumar
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heat_template_version: 2013-05-23
description: AutoScaling Wordpress
parameters:
image:
type: string
description: Image used for servers
default: 7f4bdc18-cb48-46b5-8d9c-6cabaa4270d6
key:
type: string
description: SSH key to connect to the servers
default: mykey
flavor:
type: string
description: flavor used by the web servers
default: m1.small
database_flavor:
type: string
description: flavor used by the db server
default: m1.small
subnet_id:
type: string
description: subnet on which the load balancer will be located
default: 99baadc0-a4c5-4141-b201-aba51e6ac586
database_name:
type: string
description: Name of the wordpress DB
default: wordpress
database_user:
type: string
description: Name of the wordpress user
default: wordpress
public_net_id:
type: string
description: >
ID of public network for which floating IP addresses will be allocated
default: 3a72a0a0-156a-4650-934b-13f29587969a
private_net_id:
type: string
description: ID of private network into which servers get deployed
default: 1e2e0ea5-3f85-435a-af8d-93f377d52560
resources:
database_password:
type: OS::Heat::RandomString
database_root_password:
type: OS::Heat::RandomString
db:
type: OS::Nova::Server
properties:
name: Server1
image: { get_param: image }
flavor: { get_param: flavor }
key_name: { get_param: key }
networks:
- port: { get_resource: server1_port }
user_data_format: RAW
config_drive: "true"
user_data:
str_replace:
template: |
#!/bin/bash -v
yum -y install mariadb mariadb-server
systemctl enable mariadb.service
systemctl start mariadb.service
mysqladmin -u root password $db_rootpassword
cat << EOF | mysql -u root --password=$db_rootpassword
CREATE DATABASE $db_name;
GRANT ALL PRIVILEGES ON $db_name.* TO "$db_user"@"%"
IDENTIFIED BY "$db_password";
FLUSH PRIVILEGES;
EXIT
EOF
params:
$db_rootpassword: {get_attr: [database_root_password, value]}
$db_name: {get_param: database_name}
$db_user: {get_param: database_user}
$db_password: {get_attr: [database_password, value]}
web_server_group:
type: OS::Heat::AutoScalingGroup
properties:
min_size: 1
max_size: 3
resource:
type: My::lb::Server
properties:
flavor: {get_param: flavor}
image: {get_param: image}
key_name: {get_param: key}
pool_id: {get_resource: pool}
metadata: {"metering.stack": {get_param: "OS::stack_id"}}
user_data:
str_replace:
template: |
#!/bin/bash -v
yum -y install httpd wordpress
systemctl enable httpd.service
systemctl start httpd.service
setsebool -P httpd_can_network_connect_db=1
sed -i "/Deny from All/d" /etc/httpd/conf.d/wordpress.conf
sed -i "s/Require local/Require all granted/"
/etc/httpd/conf.d/wordpress.conf
sed -i s/database_name_here/$db_name/
/etc/wordpress/wp-config.php
sed -i s/username_here/$db_user/ /etc/wordpress/wp-config.php
sed -i s/password_here/$db_password/
/etc/wordpress/wp-config.php
sed -i s/localhost/$db_host/ /etc/wordpress/wp-config.php
systemctl restart httpd.service
params:
$db_name: {get_param: database_name}
$db_user: {get_param: database_user}
$db_password: {get_attr: [database_password, value]}
$db_host: {get_attr: [db, first_address]}
web_server_scaleup_policy:
type: OS::Heat::ScalingPolicy
properties:
adjustment_type: change_in_capacity
auto_scaling_group_id: {get_resource: web_server_group}
cooldown: 60
scaling_adjustment: 1
web_server_scaledown_policy:
type: OS::Heat::ScalingPolicy
properties:
adjustment_type: change_in_capacity
auto_scaling_group_id: {get_resource: web_server_group}
cooldown: 60
scaling_adjustment: -1
cpu_alarm_high:
type: OS::Ceilometer::Alarm
properties:
description: Scale-up if the average CPU > 50% for 1 minute
meter_name: cpu_util
statistic: avg
period: 60
evaluation_periods: 1
threshold: 50
alarm_actions:
- {get_attr: [web_server_scaleup_policy, alarm_url]}
matching_metadata: {'metadata.user_metadata.stack': {get_param:
"OS::stack_id"}}
comparison_operator: gt
cpu_alarm_low:
type: OS::Ceilometer::Alarm
properties:
description: Scale-down if the average CPU < 15% for 10 minutes
meter_name: cpu_util
statistic: avg
period: 600
evaluation_periods: 1
threshold: 15
alarm_actions:
- {get_attr: [web_server_scaledown_policy, alarm_url]}
matching_metadata: {'metadata.user_metadata.stack': {get_param:
"OS::stack_id"}}
comparison_operator: lt
monitor:
type: OS::Neutron::HealthMonitor
properties:
type: TCP
delay: 5
max_retries: 5
timeout: 5
pool:
type: OS::Neutron::Pool
properties:
protocol: HTTP
monitors: [{get_resource: monitor}]
subnet_id: {get_param: subnet_id}
lb_method: ROUND_ROBIN
vip:
protocol_port: 80
lb:
type: OS::Neutron::LoadBalancer
properties:
protocol_port: 80
pool_id: {get_resource: pool}
server1_port:
type: OS::Neutron::Port
properties:
network_id: { get_param: private_net_id }
fixed_ips:
- subnet_id: { get_param: subnet_id }
security_groups: [{ get_resource: server_security_group }]
server1_floating_ip:
type: OS::Neutron::FloatingIP
properties:
floating_network_id: { get_param: public_net_id }
port_id: { get_resource: server1_port }
server_security_group:
type: OS::Neutron::SecurityGroup
properties:
description: Add security group rules for server
name: security-group
rules:
- remote_ip_prefix: 0.0.0.0/0
protocol: tcp
port_range_min: 22
port_range_max: 22
- remote_ip_prefix: 0.0.0.0/0
protocol: icmp
outputs:
server1_private_ip:
description: IP address of server1 in private network
value: { get_attr: [ server1, first_address ] }
server1_public_ip:
description: Floating IP address of server1 in public network
value: { get_attr: [ server1_floating_ip, floating_ip_address ] }
scale_up_url:
description: >
This URL is the webhook to scale up the autoscaling group. You
can invoke the scale-up operation by doing an HTTP POST to this
URL; no body nor extra headers are needed.
value: {get_attr: [web_server_scaleup_policy, alarm_url]}
scale_dn_url:
description: >
This URL is the webhook to scale down the autoscaling group.
You can invoke the scale-down operation by doing an HTTP POST to
this URL; no body nor extra headers are needed.
value: {get_attr: [web_server_scaledown_policy, alarm_url]}
pool_ip_address:
value: {get_attr: [pool, vip, address]}
description: The IP address of the load balancing pool
ceilometer_query:
value:
str_replace:
template: >
ceilometer statistics -m cpu_util
-q metadata.user_metadata.stack=stackval -p 600 -a avg
params:
stackval: { get_param: "OS::stack_id" }
description: >
This is a Ceilometer query for statistics on the cpu_util meter
Samples about OS::Nova::Server instances in this stack. The -q
parameter selects Samples according to the subject's metadata.
When a VM's metadata includes an item of the form metering.X=Y,
the corresponding Ceilometer resource has a metadata item of the
form user_metadata.X=Y and samples about resources so tagged can
be queried with a Ceilometer query term of the form
metadata.user_metadata.X=Y. In this case the nested stacks give
their VMs metadata that is passed as a nested stack parameter,
and this stack passes a metadata of the form metering.stack=Y,
where Y is this stack's ID.
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