- name: Check installed packer version
  command: "{{ packer_executable }} version"
  register: packer_installed_version
  failed_when: false

- name: Install packer
  include_tasks: install-packer.yaml
  when:
    - packer_installed_version.rc != 0 or
      "packer_version != (packer_installed_version.msg | \
       regex_replace(packer_version_pattern, '\\g<version>'))"