setup/roles/zsh/tasks/main.yml

- name: Install zsh
  become: true
  apt:
    name: zsh
- name: Set default shell to zsh
  become: true
  user:
    name: "{{ ansible_user_id }}"
    shell: /usr/bin/zsh
- name: Install .zshrc
  copy:
    src: "{{ role_path }}/files/.zshrc"
    dest: ~/.zshrc