ceilometer_demo.yaml

# see the heat template  heat-templates/hot/asg_of_servers.yaml for an idea on how to present some of the outputs?
heat_template_version: 2014-10-16

# This is a template that aims to demonstrate the connection between Heat and Ceilometer.

description: |
  Creates a Ceilometer alarmed stress tester application: and another application that is notified when the alarms fire.


parameters:

  key_name:
    type: string
    description: Name of an existing KeyPair to enable SSH access to the instances

  instance_type:
    type: string
    description: The NeCTAR flavour the webserver is to run on
    default: m2.xsmall
    constraints:
      - allowed_values: [m2.xsmall, m2.small, m1.small]
        description:
          Must be a valid NeCTAR flavour, limited to the smaller ones available

  image_name:
    type: string
    description: Name of the image to use for the instance to be created.
    default: 'Ubuntu 14.04'
    constraints:
      - allowed_values: [ 'Ubuntu 14.04', 'Ubuntu 15.04' ]
        description:
          Must be a valid NeCTAR image name, limited to the LTS Ubuntu releases


resources:

  cpu_alarm_high:
    type: OS::Ceilometer::Alarm
    properties:
      description: Scale-up if the average CPU > 30% for 10 minute
      meter_name: cpu_util
      statistic: avg
      period: 600
      evaluation_periods: 1
      threshold: 30
      ok_actions:
        - str_replace:
            template: https://IpAddress/8080/alarm/all_ok
            params:
              IpAddress: { get_attr:  [alarm_monitor, PublicIp] }
      insufficient_data_actions:
        - str_replace:
            template: https://IpAddress/8080/alarm/insufficient_data
            params:
              IpAddress: { get_attr:  [alarm_monitor, PublicIp] }
      alarm_actions:
        - str_replace:
            template: https://IpAddress/8080/alarm/scale_up_now
            params:
              IpAddress: { get_attr:  [alarm_monitor, PublicIp] }
      matching_metadata: { metadata.user_metadata.groupname : { get_resource: stress_server_group } }
      comparison_operator: gt

  cpu_alarm_low:
    type: OS::Ceilometer::Alarm
    properties:
      description: Scale-down if the average CPU < 15% for 1 minute
      meter_name: cpu_util
      statistic: avg
      period: 60
      evaluation_periods: 1
      threshold: 15
      alarm_actions:
        - str_replace:
            template: https://IpAddress/8080/alarm/scale_down
            params:
              IpAddress: { get_attr:  [alarm_monitor, PublicIp]}
      matching_metadata: { metadata.user_metadata.groupname: { get_resource: stress_server_group } }
      comparison_operator: lt

  # the following will break if you have maxed out your security group limit (10).
  web_server_security_group:
    type: AWS::EC2::SecurityGroup
    properties:
      GroupDescription: Enable HTTP access via port 8080 plus SSH access
      SecurityGroupIngress:
        -
          IpProtocol: "icmp"
          FromPort: "-1"
          ToPort: "-1"
          CidrIp: "0.0.0.0/0"
        -
          IpProtocol: "tcp"
          FromPort: "22"
          ToPort: "22"
          CidrIp: "0.0.0.0/0"
        -
          IpProtocol: "tcp"
          FromPort: "8080"
          ToPort: "8080"
          CidrIp: "0.0.0.0/0"

  stress_server_group:
    type: AWS::AutoScaling::AutoScalingGroup
    properties:
      AvailabilityZones: [ melbourne, monash, QRIScloud, NCI, intersect, sa, tasmania ]
      LaunchConfigurationName: { get_resource: launch_configuration }
      MinSize: 1
      MaxSize: 1
      Tags:
      - {Key: metering.server_group, Value: stress_server_group}

  launch_configuration:
    type: AWS::AutoScaling::LaunchConfiguration
    properties:
      ImageId:
        Fn::Select:
          - { get_param: image_name }
          -
            'Ubuntu 14.04': 2a882d9c-3185-414c-9683-a4646b5c785e
            'Ubuntu 15.04': fc48b5bb-e67d-4e39-b9ba-b6725c8b0c88
      InstanceType:  { get_param: instance_type }
      KeyName: { get_param: key_name }
      SecurityGroups: [ {  get_resource: web_server_security_group } ]
      UserData:
        str_replace:
          params:
             wc_notify: { get_attr: ['wait_handle', 'curl_cli'] }
          template: |
            #!/bin/bash -v
            apt-get update && sudo apt-get -y upgrade

            apt-get -y install git

            # time to sit back and smoke that cigar...
            apt-get -y install maven

            # then java 8
            apt-get -y install python-software-properties

            add-apt-repository ppa:webupd8team/java -y
            apt-get -q -y update

            # from http://askubuntu.com/questions/190582/installing-java-automatically-with-silent-option
            echo debconf shared/accepted-oracle-license-v1-1 select true | debconf-set-selections
            echo debconf shared/accepted-oracle-license-v1-1 seen true | debconf-set-selections

            apt-get install oracle-java8-installer -y

            # set it as the default..
            apt-get install oracle-java8-set-default

            #install stress
            apt-get -y install stress

            git clone https://github.com/MartinPaulo/SparkStressTester.git
            cd SparkStressTester
            ./start.sh &
            wc_notify --data-binary '{"status": "SUCCESS"}'

  alarm_monitor:
    type: AWS::EC2::Instance
    properties:
      # an ubuntu image with heat-cfntools installed
      ImageId:
        Fn::Select:
          - { get_param: image_name }
          -
            'Ubuntu 14.04': 2a882d9c-3185-414c-9683-a4646b5c785e
            'Ubuntu 15.04': fc48b5bb-e67d-4e39-b9ba-b6725c8b0c88
      InstanceType: { get_param: instance_type }
      KeyName: { get_param: key_name }
      SecurityGroups: [ { get_resource: web_server_security_group } ]
      # the following is written to /var/lib/cloud/data/cfn-userdata
      # note the call to cfn-init which causes the AWS::CloudFomration::Init to be actioned
      UserData:
        str_replace:
          params:
             wc_notify: { get_attr: ['wait_handle', 'curl_cli'] }
          template: |
            #!/bin/bash -v
            apt-get update && sudo apt-get -y upgrade

            apt-get -y install git

            # time to sit back and smoke that cigar...
            apt-get -y install maven

            # then java 8
            apt-get -y install python-software-properties

            add-apt-repository ppa:webupd8team/java -y
            apt-get -q -y update

            # from http://askubuntu.com/questions/190582/installing-java-automatically-with-silent-option
            echo debconf shared/accepted-oracle-license-v1-1 select true | debconf-set-selections
            echo debconf shared/accepted-oracle-license-v1-1 seen true | debconf-set-selections

            apt-get install oracle-java8-installer -y

            # set it as the default..
            apt-get install oracle-java8-set-default

            git clone https://github.com/MartinPaulo/SparkProject.git
            cd SparkProject
            ./start.sh &
            wc_notify --data-binary '{"status": "SUCCESS"}'

  wait_handle:
    # http://docs.openstack.org/developer/heat/template_guide/openstack.html#OS::Heat::WaitConditionHandle
    type: OS::Heat::WaitConditionHandle

  wait_condition:
    # http://docs.openstack.org/developer/heat/template_guide/openstack.html#OS::Heat::WaitCondition
    type: OS::Heat::WaitCondition
    depends_on: [ alarm_monitor, launch_configuration ]
    properties:
      handle: { get_resource: wait_handle }
      count: 2
      # we'll give it 10 minutes
      timeout: 600


outputs:

  monitor_url:
    description: The URL of the montitoring website
    value:
      str_replace:
        template: http://IpAddress:8080
        params:
          IpAddress: { get_attr:  [alarm_monitor, PublicIp] }

  website_url:
    description: URL for the stressed server
    value:
      str_replace:
        template: http://IpAddress:8080
        params:
          IpAddress: { get_attr: [stress_server_group, InstanceList] }