モジュール

https://docs.ansible.com/ansible/2.9/modules/modules_by_category.html
モジュールリスト

ansible-doc -l

モジュール詳細

ansible-doc <MODULE_NAME>

ad hocコマンド

ansible <HOST_PATTERN> -m <MODULE> -a <PARAMETER>

https://docs.ansible.com/ansible/latest/user_guide/intro_patterns.html

Wordpressの構成に必要なアクション

インストールパッケージ:yum
≪サービス制御｜Service Control｜ldap≫:≪サービス｜Services｜ldap≫
テキストの変更:lineInfile、blockInfile、replace
圧縮:archive,unarchive
ファイアウォール:ファイアウォール、ufw、iptables
コピーファイル:copy,fetch
ファイルのダウンロード:get url
データベース管理:mysql db、mysql user
ファイル管理:file

Ansible Jump Host with Bastion Host

https://www.jeffgeerling.com/blog/2022/using-ansible-playbook-ssh-bastion-jump-host aws-ec2.ini

[ec2]
ip-172-31-69-42.ap-northeast-2.compute.internal

[ec2:vars]
ansible_user=ec2-user
ansible_ssh_common_args='-o ProxyCommand="ssh -p 22 -W %h:%p -q [email protected]"'

ansible ec2 -i aws-ec2.ini -m command -a hostname

Ad-hocコマンドを使用してWordpressを構成

ansible wp -m yum -a "name=https://rpms.remirepo.net/enterprise/remi-release-7.rpm state=present validate_certs=no" -b

ansible wp -m yum_repository -a 'name=remi-safe file=remi-safe mirrorlist=http://cdn.remirepo.net/enterprise/7/safe/mirror description=remi-safe enabled=no' -b

ansible wp -m yum_repository -a 'name=remi-php74 file=remi-php74 mirrorlist=http://cdn.remirepo.net/enterprise/7/php74/mirror description=remi-php74 enabled=yes' -b

ansible wp -m yum -a 'name=httpd,php,php-mysqlnd,mariadb,mariadb-server,python2-PyMySQL state=installed' -b

ansible wp -m service -a 'name=httpd state=started enabled=yes' -b

ansible wp -m service -a 'name=mariadb state=started enabled=yes' -b

ansible wp -m get_url -a 'url=https://wordpress.org/wordpress-5.9.3.tar.gz dest=/home/vagrant'

ansible wp -m unarchive -a 'src=/home/vagrant/wordpress-5.9.3.tar.gz remote_src=yes dest=/var/www/html owner=apache group=apache' -b

ansible wp -m mysql_db -a 'name=wordpress state=present login_user=root'

ansible wp -m mysql_user -a 'name=wpadm password=P@ssw0rd state=present login_user=root priv="wordpress.*:ALL"'

ansible wp -m copy -a 'src=/var/www/html/wordpress/wp-config-sample.php remote_src=yes dest=/var/www/html/wordpress/wp-config.php owner=apache group=apache' -b

ansible wp -m replace -a 'path=/var/www/html/wordpress/wp-config.php regexp=database_name_here replace=wordpress' -b

ansible wp -m replace -a 'path=/var/www/html/wordpress/wp-config.php regexp=username_here replace=wpadm' -b

ansible wp -m replace -a 'path=/var/www/html/wordpress/wp-config.php regexp=password_here replace=P@ssw0rd' -b

Revertコマンド

ansible wp -m service -a 'name=httpd state=stopped' -b
ansible wp -m service -a 'name=mariadb state=stopped' -b
ansible wp -m file -a 'path=/var/www/html/wordpress state=absent' -b
ansible wp -m file -a 'path=/home/vagrant/wordpress-5.9.3.tar.gz state=absent' -b
ansible wp -m yum -a 'name=httpd,php,php-mysqlnd,mariadb,mariadb-server,python2-PyMySQL autoremove=yes state=absent' -b
ansible wp -m file -a 'name=/var/lib/mysql state=absent' -b
ansible wp -m yum -a 'name=remi-release autoremove=yes state=absent' -b

return value

https://docs.ansible.com/ansible/2.9/reference_appendices/common_return_values.html

Playbook

playbook:Yamlファイル
- .yaml , .yml

play

task

test.yaml

# Play
- hosts: host1
  tasks:
    # Task
    - yum:
        name: httpd
        state: installed
    # Task
    - service
        name: httpd
        state: started
        enabled: yes

リファレンスansible host1 -m yum -a 'name=httpd state=installed'`ansible host1 -m service -a 'name=httpd state=started enabled=yes'

ansible-playbook test.yaml

vim

yum -y install vim-enhanced

~/.vimrc

syntax on
autocmd FileType yaml setlocal ts=2 sts=2 sw=2 et ai
set cursorline

vim test.yaml

シナリオの実行

ansible-playbook <PLAYBOOK>.yaml

Yaml構文の確認

ansible-playbook wordpress.yaml --syntax-check

ゲームマニュアルシミュレーション

ansible-playbook wordpress.yaml --check

テキストの変更を確認

ansible-playbook wordpress.yaml --diff

--checkオプションとともに使用されることが多いです.
実行するシステムの制限

ansible-playbook wordpress.yaml --limit 192.168.100.12

適用するホストのリスト

ansible-playbook wordpress.yaml --list-hosts

ゲームマニュアルのタスクリスト

ansible-playbook wordpress.yaml --list-tasks

ゲームマニュアルのラベルリスト

ansible-playbook wordpress.yaml --list-tags