I’m trying to create an array in Ansible that contains all the AWS regions that are enabled in my account that support FSx for NetApp ONTAP (FSxN).

I know I can use the following to get the list of regions enabled on my account:

    - name: Get all the opted in regions.
      amazon.aws.aws_region_info:
      register: region_info

    - name: Just get region names
      set_fact:
        opted_in_regions: "{{ [item.region_name] + opted_in_regions }}"
      loop: "{{ region_info.regions }}"

But there are times, typically when a new region comes online, that some regions don’t support FSxN.

The only way I have found to know which regions support specific services is to download the price guide from https://api.regional-table.region-services.aws.a2z.com/index.json and look for regions that have “Amazon FSx for NetApp ONTAP” as the “aws:serviceName”. The format for that file is:

{
  "prices": [
    {
      "attributes": {
        "aws:region": "ap-east-1",
        "aws:serviceName": "Amazon Translate",
        "aws:serviceUrl": "https://aws.amazon.com/translate/"
      },
      "id": "translate:ap-east-1"
    },
    {
      "attributes": {
        "aws:region": "ap-northeast-1",
        "aws:serviceName": "Amazon Translate",
        "aws:serviceUrl": "https://aws.amazon.com/translate/"
      },
      "id": "translate:ap-northeast-1"
    },

So, what I did was create variable with the contents of the file:

    - name: Get the capabilities of all regions.
      set_fact:
        regions_capabilities: "{{lookup('ansible.builtin.url', 'https://api.regional-table.region-services.aws.a2z.com/index.json', split_lines=false)}}"

Then the next “task” is to loop through all the values and add to another array the ones that have the specific string in the aws:serviceName field.

    - name: Get the intersection of opted in regions and regions that support FSxN.
      when: item['attributes']['aws:serviceName'] == "Amazon FSx for NetApp ONTAP" and item['attributes']['aws:region'] in opted_in_regions
      set_fact:
        fsxnRegions: "{{ [item['attributes']['aws:region']] + fsxnRegions }}"
      loop: "{{ regions_capabilities.prices }}"

While works, that when: statements generates a LOT (thousands) of skipping... lines in the output. And, it is painfully slow.

So, the question is, is there a better way to create the array of regions that support FSxN? And if not, how can I suppress that skipping message, but ONLY for this task?

Here is the entire Ansible playbook:

# Title: generate report
---
- hosts: localhost
  collections:
    - amazon.aws
  gather_facts: false
  name: Playbook to generate a report on all the FSxNs
  vars:
    fsxnRegions: []
    opted_in_regions: []

  tasks:
    - name: Get all the opted in regions.
      amazon.aws.aws_region_info:
      register: region_info

    - name: Just get region names
      set_fact:
        opted_in_regions: "{{ [item.region_name] + opted_in_regions }}"
      loop: "{{ region_info.regions }}"

    - name: Get the capabilities of all regions.
      set_fact:
        regions_capabilities: "{{lookup('ansible.builtin.url', 'https://api.regional-table.region-services.aws.a2z.com/index.json', split_lines=false)}}"

    - name: Get the intersection of opted in regions and regions that support FSxN.
      when: item['attributes']['aws:serviceName'] == "Amazon FSx for NetApp ONTAP" and item['attributes']['aws:region'] in opted_in_regions
      set_fact:
        fsxnRegions: "{{ [item['attributes']['aws:region']] + fsxnRegions }}"
      loop: "{{ regions_capabilities.prices }}"

    - name: Output
      debug:
        msg: "fsxnRegions={{ fsxnRegions }}"