Use Ansible to Manage Cloudwatch Volume Alarms in AWS EC2

play.yml

---
- action: ec2_facts

- name: "list volumes"
  command: 'aws ec2 describe-volumes --filter Name=attachment.instance-id,Values={{ ansible_ec2_instance_id }}'
  register: ec2_volumes_output

- set_fact:
    ec2_volumes: "{{ ec2_volumes_output.stdout | from_json }}"

- set_fact:
    ec2_volumes_list: "{{ ec2_volumes.Volumes }}"

- name: "managed_vol_queue_length_1"
  ec2_metric_alarm:
    state: present
    region: "{{ ansible_ec2_placement_region }}"
    name: "managed_{{ inventory_hostname }}_{{ item.VolumeId }}_vol_queue_len_1"
    metric: "VolumeQueueLength"
    namespace: "AWS/EBS"
    statistic: Average
    comparison: ">"
    threshold: "{{ volume_queue_length_threshold_1 }}"
    period: 60
    evaluation_periods: 1
    description: "{{ inventory_hostname }} volume {{ item.Attachments[0].Device }} queue length exceeds {{ volume_queue_length_threshold_1 }} for 1 minute. Managed by Ansible."
    dimensions: { VolumeId: "{{ item.VolumeId }}" }
    alarm_actions: "{{ cloudwatch_alarm_notify_arn }}"
    ok_actions: "{{ cloudwatch_alarm_notify_arn }}"
    aws_access_key: "{{aws_access_key_id}}"
    aws_secret_key: "{{aws_secret_access_key}}"
  with_items: ec2_volumes_list