create_statsd_ec2.yml

---
- name: Create an statsd server on EC2
  hosts: localhost
  connection: local
  gather_facts: False 

  vars:
    statsd_instance_name: mao-statsd
    statsd_security_group: mao_statsd_sg
    statsd_security_group_desc: security group for statsd server   
    statsd_instance_type: c4.xlarge 
    statsd_ami_id: ami-29ebb519 # Ubuntu 14.04 TLS HVM
    statsd_ebs_device: /dev/xvdb
 
    statsd_volumes:
      - device_name: "{{ statsd_ebs_device }}"
        device_type: gp2
        volume_size: 100
        delete_on_termination: false
     
    statsd_user_data: |
              #!/bin/bash -ex
              exec > >(tee /var/log/user-data.log|logger -t user-data -s 2>/dev/console) 2>&1
              
              # format and mount ebs volume
              DEVICE_NAME={{ statsd_ebs_device }}
              apt-get install -y -q xfsprogs
              mkfs.xfs $DEVICE_NAME
              mkdir /ebs_vol
              mount $DEVICE_NAME /ebs_vol
              cp /etc/fstab /etc/fstab.orig
              echo "$DEVICE_NAME	/ebs_vol	xfs	defaults	0 0" >> /etc/fstab
              
              # trigger Tower job callback
              TOWER_ADDRESS={{ tower_address }}
              HOST_CONFIG_KEY={{ host_config_key }}
              TEMPLATE_ID={{ template_id }}
              
               retry_attempts=10
               attempt=0
               while [[ $attempt -lt $retry_attempts ]]
               do
                 status_code=`curl -k -s -i --data "host_config_key=$HOST_CONFIG_KEY" https://$TOWER_ADDRESS/api/v1/job_templates/$TEMPLATE_ID/callback/ | head -n 1 | awk '{print $2}'`
                 if [[ $status_code == 202 ]]
                   then
                   exit 0
                 fi
                 attempt=$(( attempt + 1 ))
                 echo "${status_code} received... retrying in 1 minute. (Attempt ${attempt})"
                 sleep 60
              done 
              exit 1
    
    statsd_rules: 
    - proto: tcp
      from_port: 22
      to_port: 22
      cidr_ip: 0.0.0.0/0
    - proto: tcp
      from_port: 80
      to_port: 80
      cidr_ip: 0.0.0.0/0
    - proto: tcp
      from_port: 2003
      to_port: 2003
      cidr_ip: 0.0.0.0/0
    - proto: udp
      from_port: 8125
      to_port: 8125
      cidr_ip: 0.0.0.0/0
    
    statsd_rules_egress:
    - proto: all
      from_port: all
      to_port: all
      cidr_ip: 0.0.0.0/0
    
  tasks:
    - name: Create securtity group for statsd host
      ec2_group:
        name: "{{ statsd_security_group }}" 
        description: "{{statsd_security_group_desc }}"
        region: "{{ region }}"
        rules: "{{ statsd_rules }}"
        rules_egress: "{{ statsd_rules_egress }}"
        state: 'present'
    
    - name: Create statsd host
      ec2:
        region: "{{ region }}"
        key_name: "{{ key_name }}"
        instance_type: "{{ statsd_instance_type }}"
        image: "{{ statsd_ami_id }}"
        wait: yes
        group: "{{ statsd_security_group }}"
        instance_tags:
          Name: "{{ statsd_instance_name }}"
        vpc_subnet_id: "{{ vpc_subnet_id }}"
        assign_public_ip: yes
        volumes: "{{ statsd_volumes }}"
        user_data: "{{ statsd_user_data }}" 
        exact_count: 1
        count_tag:
          Name: "{{ statsd_instance_name }}"