April 2016
Intermediate to advanced
364 pages
7h 54m
Japanese
Content preview from 初めてのAnsible
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139
7.7 ホストからの IP アドレスの取り出し
例
7-9
冪等性を持つ
manage.py createdb
- name: initialize the database
django_manage:
command: createdb --noinput --nodata
app_path: "{{ proj_path }}"
virtualenv: "{{ venv_path }}"
register: result
changed_when: not result.failed and "Creating tables" in result.out
failed_when: result.failed and "Database already created" not in result.msg
7.7
ホストからの
IP
アドレスの取り出し
この
playbook
では、使用するホスト名のうちのいくつかは、
Web
サーバーの
IP
アドレスから
導出されています。
live_hostname: 192.168.33.10.xip.io
domains:
- 192.168.33.10.xip.io
- www.192.168.33.10.xip.io
同じスキームを使いながらも、
IP
アドレスを変数にハードコードせずに済ませるにはどうすれ
ば良いでしょうか？ そうすれば、
Web
サーバーの
IP
アドレスが変化したとしても、
playbook
を変更する必要はなくなります。
Ansible
は、それぞれのホストの ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.