ansible/upload_resources.yml

---
- name: Check for presence of auxiliary resources tar file
  hosts: resources[0]
  tasks:
    - name: Store auxiliary resources tar file info into variable
      stat:
        path: "{{ hostvars[groups.resources.0].resources_dir }}/{{ hostvars[groups.resources.0].aux_resources_filename }}"
      register: aux_file_presence

- name: Check infrastructure server for presence of resources and requirements
  hosts: infrastructure
  tasks:
    - name: Check if nfs-utils is installed
      yum:
        list: nfs-utils
      register: nfs_utils_check

    - name: Check if the resources are already unpacked
      stat:
        path: "{{ app_data_path }}"
      register: resources_data_check

    - name: Check if the auxilliary resources are already unpacked
      stat:
        path: "{{ aux_data_path }}"
      register: aux_resources_data_check
      when: aux_data_path is defined and aux_data_path is not none

- name: Ensure the existence of data directory/ies on infrastructure server
  hosts: infrastructure
  tasks:
    - name: Create data directory
      file:
        path: "{{ app_data_path }}"
        state: directory

    - name: Create auxiliary data directory
      file:
        path: "{{ aux_data_path }}"
        state: directory
      when: aux_data_path is defined and aux_data_path is not none

- name: Upload resources to infrastructure server
  hosts: infrastructure
  roles:
    # use nfs or ssh and unpack resources into data directory/ies
    - role: resource-data
      vars:
        transport: "{{ 'nfs' if resources_on_nfs and (nfs_utils_check.results|selectattr('yumstate', 'match', 'installed')|list|length != 0) else 'ssh' }}"