ftp.yml

---
- name: start FTP server
  hosts: server
  gather_facts: false
  become: true
  vars:
    quiet: false
  tasks:
    - name: enable anonymous FTP
      lineinfile:
        path=/etc/vsftpd.conf
        regexp='anonymous_enable='
        line='anonymous_enable=YES'

    - name: enable IPv6 listen
      lineinfile:
        path=/etc/vsftpd.conf
        regexp='listen_ipv6='
        line='listen_ipv6=YES'

    - name: use / as a FTP user's home directory
      user: name=ftp home=/

    - name: restart FTP server
      # https://stackoverflow.com/questions/30162528/ansible-service-restart-failed
      command: systemctl restart vsftpd
      register: result
      changed_when: false

    - name: print out the result
      debug: var=result
      when: not quiet|bool

- name: FTP GET from server
  hosts: client
  vars:
    path: index.html
    dest: /tmp
    timeout: 3
    debug: false
    quiet: false
  gather_facts: false
  tasks:
    - name: check FTP GET (IPv4)
      get_url:
        url: "ftp://ftp@{{ server.ipv4 }}/{{ path }}"
        dest: "{{ dest }}"
        timeout: "{{ timeout }}"
      register: result
      ignore_errors: "{{ debug }}"

    - name: print out the result
      debug: var=result
      when: not quiet|bool

    - name: check FTP GET (private IPv4)
      get_url:
        url: "ftp://ftp@{{ server.ipv4_private }}/{{ path }}"
        dest: "{{ dest }}"
        timeout: "{{ timeout }}"
      register: result
      ignore_errors: "{{ debug }}"

    - name: print out the result
      debug: var=result
      when: not quiet|bool

    - name: check FTP GET (IPv6)
      # It seems get_url module doesn't support IPv6 raw address format:
      # https://github.com/ansible/ansible/issues/4482#issuecomment-307961120
      command: >
        curl --connect-timeout "{{ timeout }}" "ftp://ftp@[{{ server.ipv6 }}]/{{ path }}" -o "{{ dest }}/{{ path }}"
      register: result
      ignore_errors: "{{ debug }}"
      changed_when: false

    - name: print out the result
      debug: var=result
      when: not quiet|bool

    - name: check FTP GET (Floating IP)
      # get_url module doesn't have a passive support.
      # http://docs.ansible.com/ansible/get_url_module.html
      command: >
        curl --connect-timeout "{{ timeout }}" --ftp-pasv "ftp://ftp@{{ server.flip }}/{{ path }}" -o "{{ dest }}/{{ path }}"
      register: result
      ignore_errors: "{{ debug }}"
      changed_when: false

    - name: print out the result
      debug: var=result
      when: not quiet|bool

- name: stop FTP server
  hosts: server
  gather_facts: false
  become: true
  tasks:
    - name: stop FTP server
      command: systemctl stop vsftpd
      register: result
      changed_when: false