- コマンド結果によって処理の要否を判断する
register を使ってコマンド実行結果を変数に格納。ignore_errors は必須。changed_when, failed_when は表示を見やすくするために。
- name: check if YOUR_MODULE is installed
command: /usr/bin/test -e PATH_TO_THE_FILE
ignore_errors: True
changed_when: False
failed_when: False
register: is_installed
tags: YOUR_MODULE
- name: install YOUR_MODULE
ANSIBLE_MODULE: PARAMS
when: is_installed | failed
tags: YOUR_MODULE
- name: check if YOUR_PIP_MODULE is installed
command: pip show YOUR_PIP_MODULE
ignore_errors: True
changed_when: False
failed_when: False
register: check_installed
tags: YOUR_PIP_MODULE
- name: install YOUR_PIP_MODULE
pip: name={{ item }} state=present
with_items: YOUR_PIP_MODULE_URL
when: check_installed.stdout == ''
tags: YOUR_PIP_MODULE
