ansible/test/integration/targets/setup_remote_constraints/tasks/main.yml

- name: record constraints.txt path on remote host
  set_fact:
    remote_constraints: "{{ remote_tmp_dir }}/constraints.txt"

- name: copy constraints.txt to remote host
  copy:
    src: "{{ role_path }}/../../../lib/ansible_test/_data/requirements/constraints.txt"
    dest: "{{ remote_constraints }}"