Loops in loops for VPC creation

[Rob White]

I am trying to create a play that defines by VPC infrastructure.  I have a number of environments that are all set up in the same way but with different subnets.  I'm trying to loop over a dict for each environment and then within that loop, loop to create by cidr subnets.  However, it fails with an error "unsupported parameter for module: with_sequence".

I'm using the ipaddr custom filter.

I'm not sure quite how I would access my with_sequence item even if this did work.  Would it be item[1]?

My play is below...

---
- name: VPC infrastructure
  hosts: local
  connection: local
  gather_facts: false
  vars:
    environments:
      prod:
        vpc_cidr_block: 10.0.0.0/21
        availability_zones: 2
      android:
        vpc_cidr_block: 10.0.8.0/21
        availability_zones: 2
  tasks:
    - name: Create VPC
      local_action:
        module: ec2_vpc
        state: present
        region: "{{ aws_region }}"
        cidr_block: "{{ item.value.vpc_cidr_block }}"
        subnets:
          - cidr: "{{ item.value.vpc_cidr_block | ipsubnet(24, 0) }}"
        with_sequence: count={{ item.value.availability_zones }}
        resource_tags: { "env": "{{ item.key }}" }
        wait: yes
      with_dict: environments
      register: vpc

Any pointers appreciated.